From b6215b9b20b55911ca06c4cee1fa6ebdd4e8e1eb Mon Sep 17 00:00:00 2001
From: Monty <monty@mariadb.org>
Date: Mon, 1 Nov 2021 12:34:24 +0200
Subject: Update row and key fetch cost models to take into account data copy
 costs

Before this patch, when calculating the cost of fetching and using a
row/key from the engine, we took into account the cost of finding a
row or key from the engine, but did not consistently take into account
index only accessed, clustered key or covered keys for all access
paths.

The cost of the WHERE clause (TIME_FOR_COMPARE) was not consistently
considered in best_access_path().  TIME_FOR_COMPARE was used in
calculation in other places, like greedy_search(), but was in some
cases (like scans) done an a different number of rows than was
accessed.

The cost calculation of row and index scans didn't take into account
the number of rows that where accessed, only the number of accepted
rows.

When using a filter, the cost of index_only_reads and cost of
accessing and disregarding 'filtered rows' where not taken into
account, which made filters cost less than there actually where.

To remedy the above, the following key & row fetch related costs
has been added:

- The cost of fetching and using a row is now split into different costs:
  - key + Row fetch cost (as before) but multiplied with the variable
  'optimizer_cache_cost' (default to 0.5). This allows the user to
  tell the optimizer the likehood of finding the key and row in the
  engine cache.
- ROW_COPY_COST, The cost copying a row from the engine to the
  sql layer or creating a row from the join_cache to the record
  buffer. Mostly affects table scan costs.
- ROW_LOOKUP_COST, the cost of fetching a row by rowid.
- KEY_COPY_COST the cost of finding the next key and copying it from
  the engine to the SQL layer. This is used when we calculate the cost
  index only reads. It makes index scans more expensive than before if
  they cover a lot of rows. (main.index_merge_myisam)
- KEY_LOOKUP_COST, the cost of finding the first key in a range.
  This replaces the old define IDX_LOOKUP_COST, but with a higher cost.
- KEY_NEXT_FIND_COST, the cost of finding the next key (and rowid).
  when doing a index scan and comparing the rowid to the filter.
  Before this cost was assumed to be 0.

All of the above constants/variables are now tuned to be somewhat in
proportion of executing complexity to each other.  There is tuning
need for these in the future, but that can wait until the above are
made user variables as that will make tuning much easier.

To make the usage of the above easy, there are new (not virtual)
cost calclation functions in handler:
- ha_read_time(), like read_time(), but take optimizer_cache_cost into
  account.
- ha_read_and_copy_time(), like ha_read_time() but take into account
  ROW_COPY_TIME
- ha_read_and_compare_time(), like ha_read_and_copy_time() but take
  TIME_FOR_COMPARE into account.
- ha_rnd_pos_time(). Read row with row id, taking ROW_COPY_COST
  into account.  This is used with filesort where we don't need
  to execute the WHERE clause again.
- ha_keyread_time(), like keyread_time() but take
  optimizer_cache_cost into account.
- ha_keyread_and_copy_time(), like ha_keyread_time(), but add
  KEY_COPY_COST.
- ha_key_scan_time(), like key_scan_time() but take
  optimizer_cache_cost nto account.
- ha_key_scan_and_compare_time(), like ha_key_scan_time(), but add
  KEY_COPY_COST & TIME_FOR_COMPARE.

I also added some setup costs for doing different types of scans and
creating temporary tables (on disk and in memory). This encourages
the optimizer to not use these for simple 'a few row' lookups if
there are adequate key lookup strategies.
- TABLE_SCAN_SETUP_COST, cost of starting a table scan.
- INDEX_SCAN_SETUP_COST, cost of starting an index scan.
- HEAP_TEMPTABLE_CREATE_COST, cost of creating in memory
  temporary table.
- DISK_TEMPTABLE_CREATE_COST, cost of creating an on disk temporary
  table.

When calculating cost of fetching ranges, we had a cost of
IDX_LOOKUP_COST (0.125) for doing a key div for a new range. This is
now replaced with 'io_cost * KEY_LOOKUP_COST (1.0) *
optimizer_cache_cost', which matches the cost we use for 'ref' and
other key lookups. The effect is that the cost is now a bit higher
when we have many ranges for a key.

Allmost all calculation with TIME_FOR_COMPARE is now done in
best_access_path(). 'JOIN::read_time' now includes the full
cost for finding the rows in the table.

In the result files, many of the changes are now again close to what
they where before the "Update cost for hash and cached joins" commit,
as that commit didn't fix the filter cost (too complex to do
everything in one commit).

The above changes showed a lot of a lot of inconsistencies in
optimizer cost calculation. The main objective with the other changes
was to do calculation as similar (and accurate) as possible and to make
different plans more comparable.

Detailed list of changes:

- Calculate index_only_cost consistently and correctly for all scan
  and ref accesses. The row fetch_cost and index_only_cost now
  takes into account clustered keys, covered keys and index
  only accesses.
- cost_for_index_read now returns both full cost and index_only_cost
- Fixed cost calculation of get_sweep_read_cost() to match other
  similar costs. This is bases on the assumption that data is more
  often stored on SSD than a hard disk.
- Replaced constant 2.0 with new define TABLE_SCAN_SETUP_COST.
- Some scan cost estimates did not take into account
  TIME_FOR_COMPARE. Now all scan costs takes this into
  account. (main.show_explain)
- Added session variable optimizer_cache_hit_ratio (default 50%). By
  adjusting this on can reduce or increase the cost of index or direct
  record lookups. The effect of the default is that key lookups is now
  a bit cheaper than before. See usage of 'optimizer_cache_cost' in
  handler.h.
- JOIN_TAB::scan_time() did not take into account index only scans,
  which produced a wrong cost when index scan was used. Changed
  JOIN_TAB:::scan_time() to take into consideration clustered and
  covered keys. The values are now cached and we only have to call
  this function once. Other calls are changed to use the cached
  values.  Function renamed to JOIN_TAB::estimate_scan_time().
- Fixed that most index cost calculations are done the same way and
  more close to 'range' calculations. The cost is now lower than
  before for small data sets and higher for large data sets as we take
  into account how many keys are read (main.opt_trace_selectivity,
  main.limit_rows_examined).
- Ensured that index_scan_cost() ==
  range(scan_of_all_rows_in_table_using_one_range) +
  MULTI_RANGE_READ_INFO_CONST. One effect of this is that if there
  is choice of doing a full index scan and a range-index scan over
  almost the whole table then index scan will be preferred (no
  range-read setup cost).  (innodb.innodb, main.show_explain,
  main.range)
  - Fixed the EQ_REF and REF takes into account clustered and covered
    keys.  This changes some plans to use covered or clustered indexes
    as these are much cheaper.  (main.subselect_mat_cost,
    main.state_tables_innodb, main.limit_rows_examined)
  - Rowid filter setup cost and filter compare cost now takes into
    account fetching and checking the rowid (KEY_NEXT_FIND_COST).
    (main.partition_pruning heap.heap_btree main.log_state)
  - Added KEY_NEXT_FIND_COST to
    Range_rowid_filter_cost_info::lookup_cost to account of the time
    to find and check the next key value against the container
  - Introduced ha_keyread_time(rows) that takes into account finding
    the next row and copying the key value to 'record'
    (KEY_COPY_COST).
  - Introduced ha_key_scan_time() for calculating an index scan over
    all rows.
  - Added IDX_LOOKUP_COST to keyread_time() as a startup cost.
  - Added index_only_fetch_cost() as a convenience function to
    OPT_RANGE.
  - keyread_time() cost is slightly reduced to prefer shorter keys.
    (main.index_merge_myisam)
  - All of the above caused some index_merge combinations to be
    rejected because of cost (main.index_intersect). In some cases
    'ref' where replaced with index_merge because of the low
    cost calculation of get_sweep_read_cost().
  - Some index usage moved from PRIMARY to a covering index.
    (main.subselect_innodb)
- Changed cost calculation of filter to take KEY_LOOKUP_COST and
  TIME_FOR_COMPARE into account.  See sql_select.cc::apply_filter().
  filter parameters and costs are now written to optimizer_trace.
- Don't use matchings_records_in_range() to try to estimate the number
  of filtered rows for ranges. The reason is that we want to ensure
  that 'range' is calculated similar to 'ref'. There is also more work
  needed to calculate the selectivity when using ranges and ranges and
  filtering.  This causes filtering column in EXPLAIN EXTENDED to be
  100.00 for some cases where range cannot use filtering.
  (main.rowid_filter)
- Introduced ha_scan_time() that takes into account the CPU cost of
  finding the next row and copying the row from the engine to
  'record'. This causes costs of table scan to slightly increase and
  some test to changed their plan from ALL to RANGE or ALL to ref.
  (innodb.innodb_mysql, main.select_pkeycache)
  In a few cases where scan time of very small tables have lower cost
  than a ref or range, things changed from ref/range to ALL.
  (main.myisam, main.func_group, main.limit_rows_examined,
  main.subselect2)
- Introduced ha_scan_and_compare_time() which is like ha_scan_time()
  but also adds the cost of the where clause (TIME_FOR_COMPARE).
- Added small cost for creating temporary table for
  materialization. This causes some very small tables to use scan
  instead of materialization.
- Added checking of the WHERE clause (TIME_FOR_COMPARE) of the
  accepted rows to ROR costs in get_best_ror_intersect()
- Removed '- 0.001' from 'join->best_read' and optimize_straight_join()
  to ensure that the 'Last_query_cost' status variable contains the
  same value as the one that was calculated by the optimizer.
- Take avg_io_cost() into account in handler::keyread_time() and
  handler::read_time(). This should have no effect as it's 1.0 by
  default, except for heap that overrides these functions.
- Some 'ref_or_null' accesses changed to 'range' because of cost
  adjustments (main.order_by)
- Added scan type "scan_with_join_cache" for optimizer_trace. This is
  just to show in the trace what kind of scan was used.
- When using 'scan_with_join_cache' take into account number of
  preceding tables (as have to restore all fields for all previous
  table combination when checking the where clause)
  The new cost added is:
  (row_combinations * ROW_COPY_COST * number_of_cached_tables).
  This increases the cost of join buffering in proportion of the
  number of tables in the join buffer. One effect is that full scans
  are now done earlier as the cost is then smaller.
  (main.join_outer_innodb, main.greedy_optimizer)
- Removed the usage of 'worst_seeks' in cost_for_index_read as it
  caused wrong plans to be created; It prefered JT_EQ_REF even if it
  would be much more expensive than a full table scan. A related
  issue was that worst_seeks only applied to full lookup, not to
  clustered or index only lookups, which is not consistent. This
  caused some plans to use index scan instead of eq_ref (main.union)
- Changed federated block size from 4096 to 1500, which is the
  typical size of an IO packet.
- Added costs for reading rows to Federated. Needed as there is no
  caching of rows in the federated engine.
- Added ha_innobase::rnd_pos_time() cost function.
- A lot of extra things added to optimizer trace
  - More costs, especially for materialization and index_merge.
  - Make lables more uniform
  - Fixed a lot of minor bugs
  - Added 'trace_started()' around a lot of trace blocks.
- When calculating ORDER BY with LIMIT cost for using an index
  the cost did not take into account the number of row retrivals
  that has to be done or the cost of comparing the rows with the
  WHERE clause. The cost calculated would be just a fraction of
  the real cost. Now we calculate the cost as we do for ranges
  and 'ref'.
- 'Using index for group-by' is used a bit more than before as
  now take into account the WHERE clause cost when comparing
  with 'ref' and prefer the method with fewer row combinations.
  (main.group_min_max).

Bugs fixed:
- Fixed that we don't calculate TIME_FOR_COMPARE twice for some plans,
  like in optimize_straight_join() and greedy_search()
- Fixed bug in save_explain_data where we could test for the wrong
  index when displaying 'Using index'. This caused some old plans to
  show 'Using index'.  (main.subselect_innodb, main.subselect2)
- Fixed bug in get_best_ror_intersect() where 'min_cost' was not
  updated, and the cost we compared with was not the one that was
  used.
- Fixed very wrong cost calculation for priority queues in
  check_if_pq_applicable(). (main.order_by now correctly uses priority
  queue)
- When calculating cost of EQ_REF or REF, we added the cost of
  comparing the WHERE clause with the found rows, not all row
  combinations. This made ref and eq_ref to be regarded way to cheap
  compared to other access methods.
- FORCE INDEX cost calculation didn't take into account clustered or
  covered indexes.
- JT_EQ_REF cost was estimated as avg_io_cost(), which is half the
  cost of a JT_REF key. This may be true for InnoDB primary key, but
  not for other unique keys or other engines. Now we use handler
  function to calculate the cost, which allows us to handle
  consistently clustered, covered keys and not covered keys.
- ha_start_keyread() didn't call extra_opt() if keyread was already
  enabled but still changed the 'keyread' variable (which is wrong).
  Fixed by not doing anything if keyread is already enabled.
- multi_range_read_info_cost() didn't take into account io_cost when
  calculating the cost of ranges.
- fix_semijoin_strategies_for_picked_join_order() used the wrong
  record_count when calling best_access_path() for SJ_OPT_FIRST_MATCH
  and SJ_OPT_LOOSE_SCAN.
- Hash joins didn't provide correct best_cost to the upper level, which
  means that the cost for hash_joins more expensive than calculated
  in best_access_path (a difference of 10x * TIME_OF_COMPARE).
  This is fixed in the new code thanks to that we now include
  TIME_OF_COMPARE cost in 'read_time'.

Other things:
- Added some 'if (thd->trace_started())' to speed up code
- Removed not used function Cost_estimate::is_zero()
- Simplified testing of HA_POS_ERROR in get_best_ror_intersect().
  (No cost changes)
- Moved ha_start_keyread() from join_read_const_table() to join_read_const()
  to enable keyread for all types of JT_CONST tables.
- Made a few very short functions inline in handler.h

Notes:
- In main.rowid_filter the join order of order and lineitem is swapped.
  This is because the cost of doing a range fetch of lineitem(98 rows) is
  almost as big as the whole join of order,lineitem. The filtering will
  also ensure that we only have to do very small key fetches of the rows
  in lineitem.
- main.index_merge_myisam had a few changes where we are now using
  less keys for index_merge. This is because index scans are now more
  expensive than before.
- handler->optimizer_cache_cost is updated in ha_external_lock().
  This ensures that it is up to date per statements.
  Not an optimal solution (for locked tables), but should be ok for now.
- 'DELETE FROM t1 WHERE t1.a > 0 ORDER BY t1.a' does not take cost of
  filesort into consideration when table scan is chosen.
  (main.myisam_explain_non_select_all)
- perfschema.table_aggregate_global_* has changed because an update
  on a table with 1 row will now use table scan instead of key lookup.

TODO in upcomming commits:
- Fix selectivity calculation for ranges with and without filtering and
  when there is a ref access but scan is chosen.
  For this we have to store the lowest known value for
  'accepted_records' in the OPT_RANGE structure.
- Change that records_read does not include filtered rows.
- test_if_cheaper_ordering() needs to be updated to properly calculate
  costs. This will fix tests like main.order_by_innodb,
  main.single_delete_update
- Extend get_range_limit_read_cost() to take into considering
  cost_for_index_read() if there where no quick keys. This will reduce
  the computed cost for ORDER BY with LIMIT in some cases.
  (main.innodb_ext_key)
- Fix that we take into account selectivity when counting the number
  of rows we have to read when considering using a index table scan to
  resolve ORDER BY.
- Add new calculation for rnd_pos_time() where we take into account the
  benefit of reading multiple rows from the same page.
---
 mysql-test/main/costs.result                       |   91 +
 mysql-test/main/costs.test                         |   75 +
 mysql-test/main/cte_nonrecursive.result            |    8 +-
 mysql-test/main/cte_recursive.result               |    6 +-
 mysql-test/main/ctype_binary.result                |    1 +
 mysql-test/main/ctype_cp1251.result                |    1 +
 mysql-test/main/ctype_latin1.result                |    1 +
 mysql-test/main/ctype_ucs.result                   |    5 +-
 mysql-test/main/ctype_utf8.result                  |    1 +
 mysql-test/main/derived.result                     |    2 +-
 mysql-test/main/derived_cond_pushdown.result       |   28 +-
 mysql-test/main/derived_cond_pushdown.test         |    2 +-
 mysql-test/main/derived_opt.result                 |    2 +-
 mysql-test/main/derived_split_innodb.result        |    8 +-
 mysql-test/main/derived_view.result                |   14 +-
 mysql-test/main/derived_view.test                  |    2 +
 mysql-test/main/desc_index_range.result            |    4 +-
 mysql-test/main/distinct.result                    |    2 +-
 mysql-test/main/explain.result                     |   25 +-
 mysql-test/main/explain.test                       |    3 +-
 mysql-test/main/explain_innodb.result              |    2 +-
 mysql-test/main/explain_json.result                |   36 +-
 mysql-test/main/explain_json.test                  |    4 +-
 mysql-test/main/func_group.result                  |    9 +-
 mysql-test/main/func_in.result                     |   16 +-
 mysql-test/main/greedy_optimizer.result            |  109 +-
 mysql-test/main/greedy_optimizer.test              |   22 +-
 mysql-test/main/group_by.result                    |    4 +-
 mysql-test/main/group_min_max.result               |   26 +-
 mysql-test/main/index_intersect.result             |   19 +-
 mysql-test/main/index_intersect.test               |    1 -
 mysql-test/main/index_intersect_innodb.result      |   23 +-
 mysql-test/main/index_merge_myisam.result          |    8 +-
 mysql-test/main/innodb_ext_key,off.rdiff           |   35 +-
 mysql-test/main/innodb_ext_key.result              |   12 +-
 mysql-test/main/join.result                        |   24 +-
 mysql-test/main/join.test                          |   10 +-
 mysql-test/main/join_cache.result                  |   92 +-
 mysql-test/main/join_cache.test                    |   65 +-
 mysql-test/main/join_nested.result                 |   24 +-
 mysql-test/main/join_nested.test                   |    1 +
 mysql-test/main/join_nested_jcl6.result            |   36 +-
 mysql-test/main/join_outer.result                  |    6 +-
 mysql-test/main/join_outer.test                    |    2 +-
 mysql-test/main/join_outer_innodb.result           |    4 +-
 mysql-test/main/join_outer_jcl6.result             |    6 +-
 mysql-test/main/key.result                         |   13 +-
 mysql-test/main/key.test                           |    3 +
 mysql-test/main/key_cache.result                   |   32 +-
 mysql-test/main/limit_rows_examined.result         |    4 +-
 mysql-test/main/long_unique.result                 |   18 +-
 mysql-test/main/long_unique.test                   |    1 +
 mysql-test/main/multi_update.result                |    4 +-
 mysql-test/main/myisam.result                      |    7 +-
 mysql-test/main/myisam.test                        |    5 +
 .../main/myisam_explain_non_select_all.result      |   52 +-
 mysql-test/main/myisam_icp.result                  |    8 +-
 mysql-test/main/myisam_icp.test                    |    2 +-
 mysql-test/main/mysqld--help.result                |    6 +
 mysql-test/main/negation_elimination.result        |    6 +-
 mysql-test/main/null_key.result                    |    8 +-
 mysql-test/main/null_key.test                      |    7 +
 mysql-test/main/opt_trace.result                   | 2990 ++++++++++++++------
 mysql-test/main/opt_trace_index_merge.result       |  146 +-
 .../main/opt_trace_index_merge_innodb.result       |   33 +-
 mysql-test/main/opt_trace_security.result          |   40 +-
 mysql-test/main/opt_trace_selectivity.result       |   67 +-
 mysql-test/main/opt_trace_selectivity.test         |    2 +
 mysql-test/main/opt_trace_ucs2.result              |    2 +-
 mysql-test/main/opt_tvc.result                     |   43 +-
 mysql-test/main/opt_tvc.test                       |    2 +-
 mysql-test/main/order_by.result                    |   30 +-
 mysql-test/main/order_by.test                      |   10 +
 mysql-test/main/order_by_innodb.result             |   26 +-
 mysql-test/main/order_by_innodb.test               |    8 +-
 mysql-test/main/order_by_sortkey.result            |   11 +
 mysql-test/main/order_by_sortkey.test              |    5 +
 mysql-test/main/partition_pruning.result           |   28 +-
 mysql-test/main/partition_pruning.test             |    6 +-
 mysql-test/main/partition_range.result             |    4 +-
 mysql-test/main/ps_1general.result                 |    2 +-
 mysql-test/main/ps_1general.test                   |    4 +-
 mysql-test/main/range.result                       |  185 +-
 mysql-test/main/range.test                         |   15 +-
 mysql-test/main/range_innodb.result                |    7 +-
 mysql-test/main/range_innodb.test                  |    4 +
 mysql-test/main/range_mrr_icp.result               |   87 +-
 mysql-test/main/range_notembedded.result           |   10 +-
 mysql-test/main/range_notembedded.test             |    1 +
 mysql-test/main/range_vs_index_merge.result        |    4 +-
 mysql-test/main/range_vs_index_merge.test          |    2 +-
 mysql-test/main/range_vs_index_merge_innodb.result |    6 +-
 mysql-test/main/rowid_filter.result                |  500 ++--
 mysql-test/main/rowid_filter.test                  |    7 +
 mysql-test/main/rowid_filter_innodb.result         |  326 ++-
 mysql-test/main/select.result                      |   22 +-
 mysql-test/main/select.test                        |    8 +-
 mysql-test/main/select_jcl6.result                 |   34 +-
 mysql-test/main/select_pkeycache.result            |   22 +-
 mysql-test/main/select_safe.result                 |    4 +-
 mysql-test/main/selectivity.result                 |    6 +-
 mysql-test/main/selectivity_innodb.result          |   59 +-
 mysql-test/main/selectivity_no_engine.result       |    4 +-
 mysql-test/main/show_explain.result                |    4 +-
 mysql-test/main/show_explain_json.result           |    6 +-
 mysql-test/main/single_delete_update.result        |   26 +-
 mysql-test/main/single_delete_update.test          |    2 +
 mysql-test/main/stat_tables.result                 |   13 +-
 mysql-test/main/stat_tables.test                   |    2 +
 mysql-test/main/stat_tables_innodb.result          |   15 +-
 mysql-test/main/status.result                      |   10 +-
 mysql-test/main/subselect.result                   |   58 +-
 mysql-test/main/subselect.test                     |    8 +-
 mysql-test/main/subselect2.result                  |   10 +-
 mysql-test/main/subselect3.result                  |   10 +-
 mysql-test/main/subselect3_jcl6.result             |    6 +-
 mysql-test/main/subselect4.result                  |   23 +-
 mysql-test/main/subselect_exists2in.result         |   10 +-
 mysql-test/main/subselect_exists2in_costmat.result |    4 +-
 mysql-test/main/subselect_exists2in_costmat.test   |    1 +
 mysql-test/main/subselect_extra.result             |    4 +-
 mysql-test/main/subselect_innodb.result            |    9 +-
 mysql-test/main/subselect_mat.result               |   52 +-
 mysql-test/main/subselect_mat.test                 |    3 +-
 mysql-test/main/subselect_mat_cost.result          |   14 +-
 mysql-test/main/subselect_mat_cost.test            |    6 +-
 mysql-test/main/subselect_mat_cost_bugs.result     |    6 +-
 mysql-test/main/subselect_no_exists_to_in.result   |   58 +-
 mysql-test/main/subselect_no_mat.result            |   56 +-
 mysql-test/main/subselect_no_opts.result           |   32 +-
 mysql-test/main/subselect_no_scache.result         |   58 +-
 mysql-test/main/subselect_no_semijoin.result       |   32 +-
 mysql-test/main/subselect_sj.result                |  118 +-
 mysql-test/main/subselect_sj.test                  |   14 +-
 mysql-test/main/subselect_sj2.result               |   41 +-
 mysql-test/main/subselect_sj2.test                 |    2 -
 mysql-test/main/subselect_sj2_jcl6.result          |   40 +-
 mysql-test/main/subselect_sj2_jcl6.test            |    2 +-
 mysql-test/main/subselect_sj2_mat.result           |   60 +-
 mysql-test/main/subselect_sj_jcl6.result           |   94 +-
 mysql-test/main/subselect_sj_mat.result            |   78 +-
 mysql-test/main/subselect_sj_nonmerged.result      |   12 +-
 mysql-test/main/table_elim.result                  |   11 +-
 mysql-test/main/table_value_constr.result          |    6 +-
 mysql-test/main/table_value_constr.test            |    1 +
 mysql-test/main/tmp_table_count-7586.result        |    2 +
 mysql-test/main/tmp_table_count-7586.test          |    2 +
 mysql-test/main/type_blob.result                   |    2 +-
 mysql-test/main/type_datetime.result               |    6 +-
 mysql-test/main/user_var.result                    |    4 +-
 mysql-test/main/view.test                          |    2 +
 mysql-test/main/xtradb_mrr.result                  |    6 +
 mysql-test/main/xtradb_mrr.test                    |    3 +
 153 files changed, 4274 insertions(+), 2595 deletions(-)
 create mode 100644 mysql-test/main/costs.result
 create mode 100644 mysql-test/main/costs.test

(limited to 'mysql-test/main')

diff --git a/mysql-test/main/costs.result b/mysql-test/main/costs.result
new file mode 100644
index 00000000000..879d586790b
--- /dev/null
+++ b/mysql-test/main/costs.result
@@ -0,0 +1,91 @@
+create table t1 (a int primary key, b int, c int, d int, e int, key ba (b,a), key bda (b,d,a), key cba (c,b,a), key cb (c,b), key d (d)) engine=aria;
+insert into t1 select seq,seq,seq,seq,seq from seq_1_to_10;
+insert into t1 values(20,2,2,2,2),(21,3,4,5,6);
+#
+# Get different scan costs
+#
+explain select sum(e) as "table_scan" from t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	12	
+Last_query_cost	5.500000
+explain select sum(a) as "index scan" from t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	PRIMARY	4	NULL	12	Using index
+Last_query_cost	3.202929
+#
+# Range scans should be used if we don't examine all rows in the table
+#
+explain select count(a) from t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
+Last_query_cost	0.000000
+explain select count(*) from t1 where a > 0;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	PRIMARY	PRIMARY	4	NULL	12	Using where; Using index
+Last_query_cost	3.202929
+explain select count(*) from t1 where a > 1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	PRIMARY	PRIMARY	4	NULL	12	Using where; Using index
+Last_query_cost	3.202929
+explain select count(*) from t1 where a > 2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	range	PRIMARY	PRIMARY	4	NULL	11	Using where; Using index
+Last_query_cost	2.997685
+#
+# Shorter indexes are prefered over longer indexs
+#
+explain select sum(a+b) from t1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	ba	9	NULL	12	Using index
+Last_query_cost	3.204394
+explain select count(*) from t1 where b between 5 and 10;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	range	ba,bda	ba	5	NULL	6	Using where; Using index
+Last_query_cost	1.872197
+explain select sum(b+c) from t1 where b between 5 and 6 and c between 5 and 6;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	range	ba,bda,cba,cb	cb	10	NULL	2	Using where; Using index
+Last_query_cost	0.970781
+# Cost of 'd' should be slightly smaller as key 'ba' is longer than 'd'
+explain select count(*) from t1 where b > 6;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	range	ba,bda	ba	5	NULL	5	Using where; Using index
+Last_query_cost	1.646831
+explain select count(*) from t1 where d > 6;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	range	d	d	5	NULL	5	Using where; Using index
+Last_query_cost	1.646343
+#
+# Check covering index usage
+#
+explain select a,b,c from t1 where a=b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	index	NULL	cba	14	NULL	12	Using where; Using index
+Last_query_cost	3.205859
+#
+# Prefer ref keys over ranges
+#
+explain select count(*) from t1 where b=2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ref	ba,bda	ba	5	const	2	Using index
+Last_query_cost	0.950732
+explain select count(*) from t1 where b=2 and c=2;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ref	ba,bda,cba,cb	cb	10	const,const	2	Using index
+Last_query_cost	0.950781
+explain select count(*) from t1 where b=3 and c between 3 and 4;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	range	ba,bda,cba,cb	cb	10	NULL	2	Using where; Using index
+Last_query_cost	0.970781
+#
+# Prefer eq keys over ref keys
+#
+explain select a,b,e from t1 where a=10 or a=11;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	range	PRIMARY	PRIMARY	4	NULL	2	Using index condition
+Last_query_cost	2.520488
+explain select a,b,e from t1 where d=10 or d=11;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	range	d	d	5	NULL	2	Using index condition
+Last_query_cost	2.520537
+drop table t1;
diff --git a/mysql-test/main/costs.test b/mysql-test/main/costs.test
new file mode 100644
index 00000000000..6dcc41b57a3
--- /dev/null
+++ b/mysql-test/main/costs.test
@@ -0,0 +1,75 @@
+#
+# Test of cost calcuations. This test is using the Aria engine as the cost
+# calculations are stable for it.
+#
+--source include/have_sequence.inc
+
+create table t1 (a int primary key, b int, c int, d int, e int, key ba (b,a), key bda (b,d,a), key cba (c,b,a), key cb (c,b), key d (d)) engine=aria;
+insert into t1 select seq,seq,seq,seq,seq from seq_1_to_10;
+insert into t1 values(20,2,2,2,2),(21,3,4,5,6);
+
+--echo #
+--echo # Get different scan costs
+--echo #
+
+explain select sum(e) as "table_scan" from t1;
+--source include/last_query_cost.inc
+explain select sum(a) as "index scan" from t1;
+--source include/last_query_cost.inc
+
+--echo #
+--echo # Range scans should be used if we don't examine all rows in the table
+--echo #
+explain select count(a) from t1;
+--source include/last_query_cost.inc
+explain select count(*) from t1 where a > 0;
+--source include/last_query_cost.inc
+explain select count(*) from t1 where a > 1;
+--source include/last_query_cost.inc
+explain select count(*) from t1 where a > 2;
+--source include/last_query_cost.inc
+
+--echo #
+--echo # Shorter indexes are prefered over longer indexs
+--echo #
+explain select sum(a+b) from t1;
+--source include/last_query_cost.inc
+explain select count(*) from t1 where b between 5 and 10;
+--source include/last_query_cost.inc
+explain select sum(b+c) from t1 where b between 5 and 6 and c between 5 and 6;
+--source include/last_query_cost.inc
+
+--echo # Cost of 'd' should be slightly smaller as key 'ba' is longer than 'd'
+explain select count(*) from t1 where b > 6;
+--source include/last_query_cost.inc
+explain select count(*) from t1 where d > 6;
+--source include/last_query_cost.inc
+
+
+--echo #
+--echo # Check covering index usage
+--echo #
+explain select a,b,c from t1 where a=b;
+--source include/last_query_cost.inc
+
+--echo #
+--echo # Prefer ref keys over ranges
+--echo #
+
+explain select count(*) from t1 where b=2;
+--source include/last_query_cost.inc
+explain select count(*) from t1 where b=2 and c=2;
+--source include/last_query_cost.inc
+explain select count(*) from t1 where b=3 and c between 3 and 4;
+--source include/last_query_cost.inc
+
+--echo #
+--echo # Prefer eq keys over ref keys
+--echo #
+
+explain select a,b,e from t1 where a=10 or a=11;
+--source include/last_query_cost.inc
+explain select a,b,e from t1 where d=10 or d=11;
+--source include/last_query_cost.inc
+
+drop table t1;
diff --git a/mysql-test/main/cte_nonrecursive.result b/mysql-test/main/cte_nonrecursive.result
index f7871d4f929..7ad246941ae 100644
--- a/mysql-test/main/cte_nonrecursive.result
+++ b/mysql-test/main/cte_nonrecursive.result
@@ -418,8 +418,8 @@ t2.c in (with t as (select * from t1 where t1.a<5)
 select t2.c from t2,t where t2.c=t.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	4	
-1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	8	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	
 3	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	4	Using where
 3	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	8	Using where; Using join buffer (flat, BNL join)
 explain
@@ -430,8 +430,8 @@ from t2,(select * from t1 where t1.a<5) as t
 where t2.c=t.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	4	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	8	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	4	Using where
 2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	8	Using where; Using join buffer (flat, BNL join)
 # two different definitions of t: one in the with clause of the main query,
@@ -461,8 +461,8 @@ t.c in (with t as (select * from t1 where t1.a<5)
 select t2.c from t2,t where t2.c=t.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	4	Using where
-1	PRIMARY	<subquery4>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	8	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	<subquery4>	eq_ref	distinct_key	distinct_key	4	func	1	
 4	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	4	Using where
 4	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	8	Using where; Using join buffer (flat, BNL join)
 explain
@@ -472,8 +472,8 @@ t.c in (select t2.c from t2,  (select * from t1 where t1.a<5) as t
 where t2.c=t.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	4	Using where
-1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	8	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	
 3	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	4	Using where
 3	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	8	Using where; Using join buffer (flat, BNL join)
 # another with table tt is defined in the with clause of a subquery
diff --git a/mysql-test/main/cte_recursive.result b/mysql-test/main/cte_recursive.result
index a754b923ecf..a7b73b80845 100644
--- a/mysql-test/main/cte_recursive.result
+++ b/mysql-test/main/cte_recursive.result
@@ -4565,9 +4565,9 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 4	RECURSIVE UNION	<derived2>	ALL	NULL	NULL	NULL	NULL	2	
 5	RECURSIVE UNION	<derived2>	ALL	NULL	NULL	NULL	NULL	2	
 NULL	UNION RESULT	<union3,4,5>	ALL	NULL	NULL	NULL	NULL	NULL	
-2	DERIVED	h	ALL	NULL	NULL	NULL	NULL	12	
-2	DERIVED	<derived3>	ALL	NULL	NULL	NULL	NULL	12	Using where; Using join buffer (flat, BNL join)
-2	DERIVED	w	ALL	NULL	NULL	NULL	NULL	12	Using where; Using join buffer (incremental, BNL join)
+2	DERIVED	h	ALL	NULL	NULL	NULL	NULL	12	Using where
+2	DERIVED	<derived3>	ref	key0	key0	5	test.h.id	2	
+2	DERIVED	w	ALL	NULL	NULL	NULL	NULL	12	Using where; Using join buffer (flat, BNL join)
 prepare stmt from "with recursive
 ancestor_couples(h_id, h_name, h_dob, h_father, h_mother,
 w_id, w_name, w_dob, w_father, w_mother)
diff --git a/mysql-test/main/ctype_binary.result b/mysql-test/main/ctype_binary.result
index 24fc961e17d..1dd5f93ad17 100644
--- a/mysql-test/main/ctype_binary.result
+++ b/mysql-test/main/ctype_binary.result
@@ -2763,6 +2763,7 @@ id INT(11) DEFAULT NULL,
 date_column DATE DEFAULT NULL,
 KEY(date_column));
 INSERT INTO t1 VALUES (1,'2010-09-01'),(2,'2010-10-01');
+INSERT INTO t1 VALUES (3,'2012-09-01'),(4,'2012-10-01'),(5,'2012-10-01');
 EXPLAIN SELECT * FROM t1 WHERE date_column BETWEEN '2010-09-01' AND '2010-10-01';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	range	date_column	date_column	4	NULL	2	Using index condition
diff --git a/mysql-test/main/ctype_cp1251.result b/mysql-test/main/ctype_cp1251.result
index a341d9ce471..475058dc2bb 100644
--- a/mysql-test/main/ctype_cp1251.result
+++ b/mysql-test/main/ctype_cp1251.result
@@ -3175,6 +3175,7 @@ id INT(11) DEFAULT NULL,
 date_column DATE DEFAULT NULL,
 KEY(date_column));
 INSERT INTO t1 VALUES (1,'2010-09-01'),(2,'2010-10-01');
+INSERT INTO t1 VALUES (3,'2012-09-01'),(4,'2012-10-01'),(5,'2012-10-01');
 EXPLAIN SELECT * FROM t1 WHERE date_column BETWEEN '2010-09-01' AND '2010-10-01';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	range	date_column	date_column	4	NULL	2	Using index condition
diff --git a/mysql-test/main/ctype_latin1.result b/mysql-test/main/ctype_latin1.result
index 5be12e91b68..4088530fc0f 100644
--- a/mysql-test/main/ctype_latin1.result
+++ b/mysql-test/main/ctype_latin1.result
@@ -3484,6 +3484,7 @@ id INT(11) DEFAULT NULL,
 date_column DATE DEFAULT NULL,
 KEY(date_column));
 INSERT INTO t1 VALUES (1,'2010-09-01'),(2,'2010-10-01');
+INSERT INTO t1 VALUES (3,'2012-09-01'),(4,'2012-10-01'),(5,'2012-10-01');
 EXPLAIN SELECT * FROM t1 WHERE date_column BETWEEN '2010-09-01' AND '2010-10-01';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	range	date_column	date_column	4	NULL	2	Using index condition
diff --git a/mysql-test/main/ctype_ucs.result b/mysql-test/main/ctype_ucs.result
index ce0d695797b..ce8e1c2e83b 100644
--- a/mysql-test/main/ctype_ucs.result
+++ b/mysql-test/main/ctype_ucs.result
@@ -1569,7 +1569,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	range	a	a	23	NULL	1	Using where; Using index
 EXPLAIN SELECT * FROM t1 WHERE a LIKE 'c%';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	a	a	23	NULL	31	Using where; Using index
+1	SIMPLE	t1	index	a	a	23	NULL	31	Using where; Using index
 SELECT * FROM t1 WHERE a LIKE 'c%';
 a
 ca
@@ -1585,7 +1585,7 @@ ch
 ALTER TABLE t1 MODIFY a VARCHAR(10) CHARACTER SET ucs2 COLLATE ucs2_croatian_ci;
 EXPLAIN SELECT * FROM t1 WHERE a LIKE 'd%';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	a	a	23	NULL	31	Using where; Using index
+1	SIMPLE	t1	index	a	a	23	NULL	31	Using where; Using index
 SELECT hex(concat('d',_ucs2 0x017E,'%'));
 hex(concat('d',_ucs2 0x017E,'%'))
 0064017E0025
@@ -4368,6 +4368,7 @@ id INT(11) DEFAULT NULL,
 date_column DATE DEFAULT NULL,
 KEY(date_column));
 INSERT INTO t1 VALUES (1,'2010-09-01'),(2,'2010-10-01');
+INSERT INTO t1 VALUES (3,'2012-09-01'),(4,'2012-10-01'),(5,'2012-10-01');
 EXPLAIN SELECT * FROM t1 WHERE date_column BETWEEN '2010-09-01' AND '2010-10-01';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	range	date_column	date_column	4	NULL	2	Using index condition
diff --git a/mysql-test/main/ctype_utf8.result b/mysql-test/main/ctype_utf8.result
index 5986ea3ac81..6d50a6cee2e 100644
--- a/mysql-test/main/ctype_utf8.result
+++ b/mysql-test/main/ctype_utf8.result
@@ -5235,6 +5235,7 @@ id INT(11) DEFAULT NULL,
 date_column DATE DEFAULT NULL,
 KEY(date_column));
 INSERT INTO t1 VALUES (1,'2010-09-01'),(2,'2010-10-01');
+INSERT INTO t1 VALUES (3,'2012-09-01'),(4,'2012-10-01'),(5,'2012-10-01');
 EXPLAIN SELECT * FROM t1 WHERE date_column BETWEEN '2010-09-01' AND '2010-10-01';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	range	date_column	date_column	4	NULL	2	Using index condition
diff --git a/mysql-test/main/derived.result b/mysql-test/main/derived.result
index 268b111cd77..6f6fccf35d9 100644
--- a/mysql-test/main/derived.result
+++ b/mysql-test/main/derived.result
@@ -237,7 +237,7 @@ count(*)
 explain select count(*) from t1 INNER JOIN (SELECT A.E1, A.E2, A.E3 FROM t1 AS A WHERE A.E3 = (SELECT MAX(B.E3) FROM t1 AS B WHERE A.E2 = B.E2)) AS THEMAX ON t1.E1 = THEMAX.E2 AND t1.E1 = t1.E2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	<derived2>	ALL	NULL	NULL	NULL	NULL	2	
-1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	THEMAX.E2	1	Using where
+1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
 2	DERIVED	A	ALL	NULL	NULL	NULL	NULL	2	Using where
 3	DEPENDENT SUBQUERY	B	ALL	NULL	NULL	NULL	NULL	2	Using where
 drop table t1;
diff --git a/mysql-test/main/derived_cond_pushdown.result b/mysql-test/main/derived_cond_pushdown.result
index a17580d9943..9be0a96ef77 100644
--- a/mysql-test/main/derived_cond_pushdown.result
+++ b/mysql-test/main/derived_cond_pushdown.result
@@ -19188,7 +19188,7 @@ DROP TABLE t1;
 CREATE TABLE t1 (pk1 INT PRIMARY KEY, f INT) ENGINE=Aria;
 INSERT INTO t1 VALUES (1,0),(2,0);
 CREATE TABLE t2 (pk2 INT PRIMARY KEY) ENGINE=Aria;
-INSERT INTO t2 VALUES (1),(2),(3);
+INSERT INTO t2 VALUES (1),(2),(3),(11),(12),(13);
 CREATE VIEW v2 AS SELECT pk2, COUNT(*) AS cnt FROM t2 GROUP BY pk2;
 SELECT * FROM t1 INNER JOIN v2 ON pk1 = pk2 WHERE f <> 5;
 pk1	f	pk2	cnt
@@ -19506,8 +19506,8 @@ explain extended select id, a from t1 where  id in (select id from v1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	20	100.00	
 1	PRIMARY	<derived3>	ref	key0	key0	4	test.t1.id	2	100.00	FirstMatch(t1)
-3	LATERAL DERIVED	t1	eq_ref	PRIMARY	PRIMARY	4	test.t1.id	1	100.00	
-3	LATERAL DERIVED	t2	ref	ro_id	ro_id	4	test.t1.id	1	100.00	Using where
+3	DERIVED	t1	ALL	PRIMARY	NULL	NULL	NULL	20	100.00	Using temporary; Using filesort
+3	DERIVED	t2	ref	ro_id	ro_id	4	test.t1.id	1	100.00	Using where
 Warnings:
 Note	1003	/* select#1 */ select `test`.`t1`.`id` AS `id`,`test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`v1`) where `v1`.`id` = `test`.`t1`.`id`
 select id, a from t1
@@ -19544,10 +19544,10 @@ group by t1.id) dt);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	20	100.00	
 1	PRIMARY	<derived3>	ref	key0	key0	4	test.t1.id	2	100.00	FirstMatch(t1)
-3	LATERAL DERIVED	t1	eq_ref	PRIMARY	PRIMARY	4	test.t1.id	1	100.00	
-3	LATERAL DERIVED	t2	ref	ro_id	ro_id	4	test.t1.id	1	100.00	Using where
+3	DERIVED	t1	ALL	PRIMARY	NULL	NULL	NULL	20	100.00	Using temporary; Using filesort
+3	DERIVED	t2	ref	ro_id	ro_id	4	test.t1.id	1	100.00	Using where
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`id` AS `id`,`test`.`t1`.`a` AS `a` from `test`.`t1` semi join ((/* select#3 */ select `test`.`t1`.`id` AS `id`,`test`.`t1`.`a` AS `a` from `test`.`t1` left join `test`.`t2` on(`test`.`t2`.`ro_id` = `test`.`t1`.`id` and `test`.`t2`.`flag` = 1) where `test`.`t1`.`id` = `test`.`t1`.`id` group by `test`.`t1`.`id`) `dt`) where `dt`.`id` = `test`.`t1`.`id`
+Note	1003	/* select#1 */ select `test`.`t1`.`id` AS `id`,`test`.`t1`.`a` AS `a` from `test`.`t1` semi join ((/* select#3 */ select `test`.`t1`.`id` AS `id`,`test`.`t1`.`a` AS `a` from `test`.`t1` left join `test`.`t2` on(`test`.`t2`.`ro_id` = `test`.`t1`.`id` and `test`.`t2`.`flag` = 1) where 1 group by `test`.`t1`.`id`) `dt`) where `dt`.`id` = `test`.`t1`.`id`
 drop view v1;
 drop table t1,t2;
 #
@@ -20061,7 +20061,7 @@ JOIN (SELECT t1_id FROM t2 WHERE reporting_person = 1 GROUP BY t1_id) tx
 ON tx.t1_id = t1.id
 WHERE t1.id BETWEEN 200 AND 100000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t3	range	t1_id	t1_id	5	NULL	47	Using where; Using index
+1	PRIMARY	t3	index	t1_id	t1_id	15	NULL	47	Using where; Using index
 1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	test.t3.t1_id	1	Using index
 1	PRIMARY	<derived2>	ref	key0	key0	5	test.t3.t1_id	2	
 2	LATERAL DERIVED	t2	ref	t1_id	t1_id	5	test.t1.id	3	Using index condition; Using where
@@ -20080,11 +20080,11 @@ EXPLAIN
       {
         "table": {
           "table_name": "t3",
-          "access_type": "range",
+          "access_type": "index",
           "possible_keys": ["t1_id"],
           "key": "t1_id",
-          "key_length": "5",
-          "used_key_parts": ["t1_id"],
+          "key_length": "15",
+          "used_key_parts": ["t1_id", "YEAR", "quarter"],
           "rows": 47,
           "filtered": 100,
           "attached_condition": "t3.t1_id between 200 and 100000 and t3.t1_id is not null",
@@ -20416,8 +20416,8 @@ WHERE charges.to_ledger_id = 2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	charges	ALL	PRIMARY,fk_charge_from_ledger,fk_charge_to_ledger	NULL	NULL	NULL	20	Using where
 1	PRIMARY	<derived2>	ref	key0	key0	17	test.charges.from_ledger_id,test.charges.id	4	
-2	DERIVED	transaction_items	ALL	fk_items_transaction	NULL	NULL	NULL	40	Using temporary; Using filesort
-2	DERIVED	transactions	eq_ref	PRIMARY	PRIMARY	8	test.transaction_items.transaction_id	1	
+2	DERIVED	transactions	ALL	PRIMARY	NULL	NULL	NULL	40	Using temporary; Using filesort
+2	DERIVED	transaction_items	ref	fk_items_transaction	fk_items_transaction	8	test.transactions.id	1	
 INSERT INTO charges (id, from_ledger_id, to_ledger_id, amount) VALUES
 (101, 4, 2, 100), (102, 7, 2, 200);
 set optimizer_switch='split_materialized=on';
@@ -20608,8 +20608,8 @@ WHERE charges.to_ledger_id = 2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	charges	ALL	fk_charge_to_ledger	NULL	NULL	NULL	20	Using where
 1	PRIMARY	<derived2>	ref	key0	key0	18	test.charges.from_ledger_id,test.charges.id	4	
-2	DERIVED	transaction_items	ALL	fk_items_transaction	NULL	NULL	NULL	40	Using temporary; Using filesort
-2	DERIVED	transactions	eq_ref	PRIMARY	PRIMARY	8	test.transaction_items.transaction_id	1	
+2	DERIVED	transactions	ALL	PRIMARY	NULL	NULL	NULL	40	Using temporary; Using filesort
+2	DERIVED	transaction_items	ref	fk_items_transaction	fk_items_transaction	8	test.transactions.id	1	
 set optimizer_switch='split_materialized=default';
 DROP TABLE transaction_items;
 DROP TABLE transactions;
diff --git a/mysql-test/main/derived_cond_pushdown.test b/mysql-test/main/derived_cond_pushdown.test
index 39e82210e4c..a09fd1b59e3 100644
--- a/mysql-test/main/derived_cond_pushdown.test
+++ b/mysql-test/main/derived_cond_pushdown.test
@@ -3324,7 +3324,7 @@ CREATE TABLE t1 (pk1 INT PRIMARY KEY, f INT) ENGINE=Aria;
 INSERT INTO t1 VALUES (1,0),(2,0);
 
 CREATE TABLE t2 (pk2 INT PRIMARY KEY) ENGINE=Aria;
-INSERT INTO t2 VALUES (1),(2),(3);
+INSERT INTO t2 VALUES (1),(2),(3),(11),(12),(13);
 
 CREATE VIEW v2 AS SELECT pk2, COUNT(*) AS cnt FROM t2 GROUP BY pk2;
 
diff --git a/mysql-test/main/derived_opt.result b/mysql-test/main/derived_opt.result
index cf0c1cb617f..4033f381458 100644
--- a/mysql-test/main/derived_opt.result
+++ b/mysql-test/main/derived_opt.result
@@ -111,7 +111,7 @@ count(*)
 explain select count(*) from t1 INNER JOIN (SELECT A.E1, A.E2, A.E3 FROM t1 AS A WHERE A.E3 = (SELECT MAX(B.E3) FROM t1 AS B WHERE A.E2 = B.E2)) AS THEMAX ON t1.E1 = THEMAX.E2 AND t1.E1 = t1.E2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	A	ALL	NULL	NULL	NULL	NULL	2	Using where
-1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	test.A.E2	1	Using where
+1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
 3	DEPENDENT SUBQUERY	B	ALL	NULL	NULL	NULL	NULL	2	Using where
 drop table t1;
 create table t1 (a int);
diff --git a/mysql-test/main/derived_split_innodb.result b/mysql-test/main/derived_split_innodb.result
index 7a680d3a0df..be3de7dbc02 100644
--- a/mysql-test/main/derived_split_innodb.result
+++ b/mysql-test/main/derived_split_innodb.result
@@ -21,7 +21,7 @@ WHERE t.n1 = t1.n1 AND t.n2 = t1.n2 AND c1 = 'a' GROUP BY n1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ref	c1,n1_c1_n2	c1	1	const	2	Using index condition; Using where; Using temporary; Using filesort
 1	PRIMARY	<derived2>	ref	key0	key0	8	test.t1.n1,test.t1.n2	2	
-2	LATERAL DERIVED	t1	ref	c1,n1_c1_n2	n1_c1_n2	4	test.t1.n1	1	Using where; Using index
+2	DERIVED	t1	ref	c1,n1_c1_n2	c1	1	const	2	Using index condition; Using where; Using temporary; Using filesort
 SELECT t1.n1 FROM t1, (SELECT n1, n2 FROM t1 WHERE c1 = 'a' GROUP BY n1) as t
 WHERE t.n1 = t1.n1 AND t.n2 = t1.n2 AND c1 = 'a' GROUP BY n1;
 n1
@@ -175,8 +175,8 @@ t1.a = dt.a;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	index	a,a_2	a_2	10	NULL	6	Using where; Using index
 1	PRIMARY	<derived3>	ref	key0	key0	5	test.t1.a	2	
-3	LATERAL DERIVED	t1	ref	a,a_2	a	5	test.t1.a	1	Using where; Using temporary; Using filesort
-3	LATERAL DERIVED	t2	ref	c	c	5	test.t1.b	1	Using index
+3	DERIVED	t1	index	a,a_2	a_2	10	NULL	6	Using where; Using index; Using temporary; Using filesort
+3	DERIVED	t2	ref	c	c	5	test.t1.b	1	Using index
 DROP TABLE t1, t2;
 #
 # Bug mdev-25714: usage non-splitting covering index is cheaper than
@@ -210,7 +210,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	
 1	PRIMARY	t1	ref	idx	idx	4	test.t2.id	1	
 1	PRIMARY	<derived2>	ref	key0	key0	9	test.t2.id,test.t1.id	2	
-2	DERIVED	t3	ref	idx1,idx2	idx1	4	const	5	Using where; Using index
+2	LATERAL DERIVED	t3	ref	idx1,idx2	idx2	4	test.t1.itemid	1	Using index condition; Using where
 select t1.id, t1.itemid, dt.id, t2.id
 from t1,
 (select itemid, max(id) as id from t3 where userid = 1 group by itemid) dt,
diff --git a/mysql-test/main/derived_view.result b/mysql-test/main/derived_view.result
index b86cd1c42cc..a64894441c8 100644
--- a/mysql-test/main/derived_view.result
+++ b/mysql-test/main/derived_view.result
@@ -1881,14 +1881,14 @@ WHERE (t2.a ,t1.b) NOT IN (SELECT DISTINCT c,a  FROM t3 t);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
-2	DEPENDENT SUBQUERY	t	unique_subquery	PRIMARY,c	PRIMARY	4	func	1	Using where
+2	DEPENDENT SUBQUERY	t	index_subquery	PRIMARY,c	c	8	func,func	2	Using index; Using where
 EXPLAIN 
 SELECT * FROM t1 , t2
 WHERE (t2.a ,t1.b) NOT IN (SELECT DISTINCT c,a  FROM (SELECT * FROM t3) t);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
-2	DEPENDENT SUBQUERY	t3	unique_subquery	PRIMARY,c	PRIMARY	4	func	1	Using where
+2	DEPENDENT SUBQUERY	t3	index_subquery	PRIMARY,c	c	8	func,func	2	Using index; Using where
 SELECT * FROM t1 , t2
 WHERE (t2.a ,t1.b) NOT IN (SELECT DISTINCT c,a  FROM (SELECT * FROM t3) t);
 b	a
@@ -1931,8 +1931,8 @@ WHERE t3.b IN (SELECT v1.b FROM  v1, t2
 WHERE t2.c = v1.c AND t2.c = v1.b AND v1.b = t3.c);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	system	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<derived3>	ref	key1	key1	8	const,const	0	Start temporary
-1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	2	Using where; End temporary; Using join buffer (flat, BNL join)
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	2	Using where
+1	PRIMARY	<derived3>	ref	key1	key1	8	const,const	0	FirstMatch(t3)
 3	DERIVED	t1	ALL	NULL	NULL	NULL	NULL	3	Using where
 SELECT * FROM t3 
 WHERE t3.b IN (SELECT v1.b FROM  v1, t2 
@@ -2439,10 +2439,14 @@ CREATE TABLE t2 (a int, INDEX(a));
 INSERT INTO t2 VALUES (1), (2);
 INSERT INTO t1 SELECT a FROM (SELECT a FROM test.t1) AS s1 NATURAL JOIN
 t2 AS s2;
+INSERT INTO t1 SELECT a FROM (SELECT a FROM test.t1) AS s1 NATURAL JOIN
+t2 AS s2;
 SELECT * FROM t1;
 a
 1
 1
+1
+1
 DELETE FROM t1;
 INSERT INTO t1 VALUES (1);
 PREPARE stmt FROM "
@@ -2459,6 +2463,8 @@ SELECT * FROM t1;
 a
 1
 1
+1
+1
 drop table t1,t2;
 set optimizer_switch=@save968720_optimizer_switch;
 #
diff --git a/mysql-test/main/derived_view.test b/mysql-test/main/derived_view.test
index caccc7dafa1..c511b8febc9 100644
--- a/mysql-test/main/derived_view.test
+++ b/mysql-test/main/derived_view.test
@@ -1417,6 +1417,8 @@ INSERT INTO t1 VALUES (1);
 CREATE TABLE t2 (a int, INDEX(a));
 INSERT INTO t2 VALUES (1), (2);
 
+INSERT INTO t1 SELECT a FROM (SELECT a FROM test.t1) AS s1 NATURAL JOIN
+t2 AS s2;
 INSERT INTO t1 SELECT a FROM (SELECT a FROM test.t1) AS s1 NATURAL JOIN
 t2 AS s2;
 SELECT * FROM t1;
diff --git a/mysql-test/main/desc_index_range.result b/mysql-test/main/desc_index_range.result
index 6b1f2e31c31..a540efe33d6 100644
--- a/mysql-test/main/desc_index_range.result
+++ b/mysql-test/main/desc_index_range.result
@@ -146,7 +146,7 @@ CREATE TABLE t1 (p int NOT NULL, a int NOT NULL, PRIMARY KEY (p,a desc));
 insert into t1 select 2,seq from seq_0_to_1000;
 EXPLAIN select MIN(a) from t1 where p = 2 group by p;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	PRIMARY	PRIMARY	4	const	1000	Using index
+1	SIMPLE	t1	index	PRIMARY	PRIMARY	8	NULL	1001	Using where; Using index
 select json_detailed(json_extract(trace, '$**.potential_group_range_indexes'))
 from information_schema.optimizer_trace;
 json_detailed(json_extract(trace, '$**.potential_group_range_indexes'))
@@ -194,7 +194,7 @@ test.t1	analyze	status	OK
 # Must use ROR-intersect:
 explain select * from t1 where b = 255 AND a IS NULL;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	a,b	b,a	5,5	NULL	1	Using intersect(b,a); Using where; Using index
+1	SIMPLE	t1	ref	a,b	b	5	const	2	Using where
 select * from t1 where b = 255 AND a IS NULL;
 pk	a	b
 10000	NULL	255
diff --git a/mysql-test/main/distinct.result b/mysql-test/main/distinct.result
index b422d3b286e..3064e062781 100644
--- a/mysql-test/main/distinct.result
+++ b/mysql-test/main/distinct.result
@@ -175,7 +175,7 @@ explain SELECT distinct t3.a FROM t3,t2,t1 WHERE t3.a=t1.b AND t1.a=t2.a;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	4	Using where; Using temporary
 1	SIMPLE	t3	ref	a	a	5	test.t1.b	2	Using index
-1	SIMPLE	t2	index	a	a	4	NULL	5	Using where; Using index; Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ref	a	a	4	test.t1.a	2	Using index; Distinct
 SELECT distinct t3.a FROM t3,t2,t1 WHERE t3.a=t1.b AND t1.a=t2.a;
 a
 1
diff --git a/mysql-test/main/explain.result b/mysql-test/main/explain.result
index 8db5e9f51ac..a5ad9fad4ba 100644
--- a/mysql-test/main/explain.result
+++ b/mysql-test/main/explain.result
@@ -325,7 +325,7 @@ DROP TABLE t1;
 # Bug#56814 Explain + subselect + fulltext crashes server
 #
 CREATE TABLE t1(f1 VARCHAR(6) NOT NULL,
-FULLTEXT KEY(f1),UNIQUE(f1));
+FULLTEXT KEY `fulltext` (f1), UNIQUE `unique` (f1));
 INSERT INTO t1 VALUES ('test');
 EXPLAIN SELECT 1 FROM t1
 WHERE 1 > ALL((SELECT t1.f1 FROM t1 JOIN t1 a ON (MATCH(t1.f1) AGAINST (""))
@@ -333,7 +333,9 @@ WHERE t1.f1 GROUP BY t1.f1));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	NULL	NULL	NULL	NULL	1	
 2	SUBQUERY	a	system	NULL	NULL	NULL	NULL	1	
-2	SUBQUERY	t1	fulltext	f1_2,f1	f1	0		1	Using where
+2	SUBQUERY	t1	index	unique,fulltext	unique	8	NULL	1	Using where; Using index
+Warnings:
+Warning	1292	Truncated incorrect DECIMAL value: 'test'
 PREPARE stmt FROM
 'EXPLAIN SELECT 1 FROM t1
  WHERE 1 > ALL((SELECT t1.f1 FROM t1 RIGHT OUTER JOIN t1 a
@@ -343,12 +345,16 @@ EXECUTE stmt;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	NULL	NULL	NULL	NULL	1	
 2	SUBQUERY	a	system	NULL	NULL	NULL	NULL	1	
-2	SUBQUERY	t1	fulltext	f1_2,f1	f1	0		1	Using where
+2	SUBQUERY	t1	index	unique,fulltext	unique	8	NULL	1	Using where; Using index
+Warnings:
+Warning	1292	Truncated incorrect DECIMAL value: 'test'
 EXECUTE stmt;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	NULL	NULL	NULL	NULL	1	
 2	SUBQUERY	a	system	NULL	NULL	NULL	NULL	1	
-2	SUBQUERY	t1	fulltext	f1_2,f1	f1	0		1	Using where
+2	SUBQUERY	t1	index	unique,fulltext	unique	8	NULL	1	Using where; Using index
+Warnings:
+Warning	1292	Truncated incorrect DECIMAL value: 'test'
 DEALLOCATE PREPARE stmt;
 PREPARE stmt FROM
 'EXPLAIN SELECT 1 FROM t1
@@ -359,12 +365,15 @@ EXECUTE stmt;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	NULL	NULL	NULL	NULL	1	
 2	SUBQUERY	a	system	NULL	NULL	NULL	NULL	1	
-2	SUBQUERY	t1	fulltext	f1_2,f1	f1	0		1	Using where
+2	SUBQUERY	t1	index	unique,fulltext	unique	8	NULL	1	Using where; Using index
+Warnings:
+Warning	1292	Truncated incorrect DECIMAL value: 'test'
+INSERT into t1 values('test1'),('test2'),('test3'),('test4'),('test5');
 EXECUTE stmt;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t1	system	NULL	NULL	NULL	NULL	1	
-2	SUBQUERY	a	system	NULL	NULL	NULL	NULL	1	
-2	SUBQUERY	t1	fulltext	f1_2,f1	f1	0		1	Using where
+1	PRIMARY	t1	index	NULL	unique	8	NULL	6	Using index
+2	SUBQUERY	t1	fulltext	unique,fulltext	fulltext	0		1	Using where
+2	SUBQUERY	a	index	NULL	unique	8	NULL	6	Using index
 DEALLOCATE PREPARE stmt;
 DROP TABLE t1;
 End of 5.1 tests.
diff --git a/mysql-test/main/explain.test b/mysql-test/main/explain.test
index 36595ba727c..0e4a3b8c2c0 100644
--- a/mysql-test/main/explain.test
+++ b/mysql-test/main/explain.test
@@ -254,7 +254,7 @@ DROP TABLE t1;
 --echo #
 
 CREATE TABLE t1(f1 VARCHAR(6) NOT NULL,
-FULLTEXT KEY(f1),UNIQUE(f1));
+FULLTEXT KEY `fulltext` (f1), UNIQUE `unique` (f1));
 INSERT INTO t1 VALUES ('test');
 
 EXPLAIN SELECT 1 FROM t1
@@ -279,6 +279,7 @@ PREPARE stmt FROM
  WHERE t1.f1 GROUP BY t1.f1))';
 
 EXECUTE stmt;
+INSERT into t1 values('test1'),('test2'),('test3'),('test4'),('test5');
 EXECUTE stmt;
 
 DEALLOCATE PREPARE stmt;
diff --git a/mysql-test/main/explain_innodb.result b/mysql-test/main/explain_innodb.result
index 0bdd5a44985..fe51e45e35d 100644
--- a/mysql-test/main/explain_innodb.result
+++ b/mysql-test/main/explain_innodb.result
@@ -15,6 +15,6 @@ explain
 SELECT * FROM (SELECT id FROM t1 GROUP BY id) dt WHERE 1=0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
-2	DERIVED	t1	range	NULL	id	53	NULL	1	Using index for group-by
+2	DERIVED	t1	index	NULL	id	53	NULL	1	Using index
 SET GLOBAL slow_query_log = @sql_tmp;
 drop table t1;
diff --git a/mysql-test/main/explain_json.result b/mysql-test/main/explain_json.result
index 3c3c0688ab8..fde96bc1a14 100644
--- a/mysql-test/main/explain_json.result
+++ b/mysql-test/main/explain_json.result
@@ -728,6 +728,19 @@ EXPLAIN
           "filtered": 100
         }
       },
+      {
+        "block-nl-join": {
+          "table": {
+            "table_name": "t2",
+            "access_type": "ALL",
+            "rows": 10,
+            "filtered": 100
+          },
+          "buffer_type": "flat",
+          "buffer_size": "119",
+          "join_type": "BNL"
+        }
+      },
       {
         "table": {
           "table_name": "<subquery2>",
@@ -756,19 +769,6 @@ EXPLAIN
             }
           }
         }
-      },
-      {
-        "block-nl-join": {
-          "table": {
-            "table_name": "t2",
-            "access_type": "ALL",
-            "rows": 10,
-            "filtered": 100
-          },
-          "buffer_type": "flat",
-          "buffer_size": "1Kb",
-          "join_type": "BNL"
-        }
       }
     ]
   }
@@ -930,9 +930,9 @@ drop table t0;
 # MDEV-7265: "Full scan on NULL key", the join case
 #
 CREATE TABLE t1 (a INT, KEY(a));
-INSERT INTO t1 VALUES (1),(2);
+INSERT INTO t1 VALUES (1),(2),(5),(6),(7);
 CREATE TABLE t2 (b INT);
-INSERT INTO t2 VALUES (3),(4);
+INSERT INTO t2 VALUES (3),(4),(9),(10),(11);
 EXPLAIN FORMAT=JSON SELECT * FROM t1 AS outer_t1 WHERE a <> ALL ( SELECT a FROM t1, t2 WHERE b <> outer_t1.a );
 EXPLAIN
 {
@@ -946,7 +946,7 @@ EXPLAIN
           "key": "a",
           "key_length": "5",
           "used_key_parts": ["a"],
-          "rows": 2,
+          "rows": 5,
           "filtered": 100,
           "attached_condition": "!<in_optimizer>(outer_t1.a,<exists>(subquery#2))",
           "using_index": true
@@ -969,7 +969,7 @@ EXPLAIN
                   "key_length": "5",
                   "used_key_parts": ["a"],
                   "ref": ["func"],
-                  "rows": 2,
+                  "rows": 3,
                   "filtered": 100,
                   "attached_condition": "trigcond(<cache>(outer_t1.a) = t1.a or t1.a is null)",
                   "using_index": true
@@ -981,7 +981,7 @@ EXPLAIN
                 "table": {
                   "table_name": "t2",
                   "access_type": "ALL",
-                  "rows": 2,
+                  "rows": 5,
                   "filtered": 100
                 },
                 "buffer_type": "flat",
diff --git a/mysql-test/main/explain_json.test b/mysql-test/main/explain_json.test
index 17e2da4754c..baf1aa988a2 100644
--- a/mysql-test/main/explain_json.test
+++ b/mysql-test/main/explain_json.test
@@ -163,10 +163,10 @@ drop table t0;
 --echo #
 
 CREATE TABLE t1 (a INT, KEY(a));
-INSERT INTO t1 VALUES (1),(2);
+INSERT INTO t1 VALUES (1),(2),(5),(6),(7);
 
 CREATE TABLE t2 (b INT);
-INSERT INTO t2 VALUES (3),(4);
+INSERT INTO t2 VALUES (3),(4),(9),(10),(11);
 
 EXPLAIN FORMAT=JSON SELECT * FROM t1 AS outer_t1 WHERE a <> ALL ( SELECT a FROM t1, t2 WHERE b <> outer_t1.a );
 
diff --git a/mysql-test/main/func_group.result b/mysql-test/main/func_group.result
index 8f9c27eeb86..5d9b1df58ba 100644
--- a/mysql-test/main/func_group.result
+++ b/mysql-test/main/func_group.result
@@ -607,7 +607,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 explain 
 select min(a1) from t1 where (a1 < 'KKK' or a1 > 'KKK');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	PRIMARY	PRIMARY	3	NULL	14	Using where; Using index
+1	SIMPLE	t1	index	PRIMARY	PRIMARY	3	NULL	15	Using where; Using index
 explain
 select max(a3) from t1 where a2 < 2 and a3 < 'SEA';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
@@ -652,7 +652,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 explain
 select concat(min(t1.a1),min(t2.a4)) from t1, t2 where t2.a4 <> 'AME';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	range	k2	k2	4	NULL	6	Using where; Using index
+1	SIMPLE	t2	index	k2	k2	4	NULL	7	Using where; Using index
 1	SIMPLE	t1	index	NULL	PRIMARY	3	NULL	15	Using index; Using join buffer (flat, BNL join)
 drop table t1, t2;
 create table t1 (a char(10));
@@ -1336,7 +1336,7 @@ INSERT INTO t2 ( a, b, c ) VALUES
 ( 1, NULL, 2 ), ( 1, 3, 4 ), ( 1, 4, 4 ), ( 2, NULL, 2 ), ( 2, 3, 4 ), ( 2, 4, 4 );
 EXPLAIN SELECT MIN(b), MIN(c) FROM t2 WHERE a = 1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	ref	a	a	5	const	3	
+1	SIMPLE	t2	ALL	a	NULL	NULL	NULL	6	Using where
 SELECT MIN(b), MIN(c) FROM t2 WHERE a = 1;
 MIN(b)	MIN(c)
 3	2
@@ -1856,9 +1856,8 @@ NULL
 EXPLAIN EXTENDED
 SELECT MAX(a) FROM t1 WHERE (1,2) IN (SELECT a,b FROM t2 WHERE b<5) and a<10;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func,func	1	100.00	
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	5	100.00	Using where; FirstMatch
 1	PRIMARY	t1	range	a	a	4	NULL	3	100.00	Using where; Using index; Using join buffer (flat, BNL join)
-2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	5	100.00	Using where
 Warnings:
 Note	1003	select max(`test`.`t1`.`a`) AS `MAX(a)` from `test`.`t1` semi join (`test`.`t2`) where `test`.`t2`.`a` = 1 and `test`.`t2`.`b` = 2 and `test`.`t1`.`a` < 10
 SELECT MAX(a) FROM t1 WHERE (1,2) IN (SELECT a,b FROM t2 WHERE b<5) and a<10;
diff --git a/mysql-test/main/func_in.result b/mysql-test/main/func_in.result
index 175e23ec65f..13eb9501599 100644
--- a/mysql-test/main/func_in.result
+++ b/mysql-test/main/func_in.result
@@ -521,7 +521,7 @@ a
 b
 explain select f1 from t1 where f1 in ('a','b');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	t1f1_idx	t1f1_idx	2	NULL	2	Using where; Using index
+1	SIMPLE	t1	index	t1f1_idx	t1f1_idx	2	NULL	3	Using where; Using index
 select f1 from t1 where f1 in (2,1);
 f1
 1
@@ -957,7 +957,7 @@ a
 # Conversion to equality is impossible due to different values
 EXPLAIN SELECT * FROM t1 WHERE a IN (1,1,2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	PRIMARY	PRIMARY	4	NULL	2	Using where; Using index
+1	SIMPLE	t1	index	PRIMARY	PRIMARY	4	NULL	3	Using where; Using index
 SELECT * FROM t1 WHERE a IN (1,NULL,1);
 a
 1
@@ -1030,7 +1030,7 @@ a	b
 # No conversion due to different values
 EXPLAIN SELECT * FROM t2 WHERE (a,b) IN ((2,'def'),(2,'def'),(2,'XYZ'));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	range	PRIMARY	PRIMARY	16	NULL	2	Using where; Using index
+1	SIMPLE	t2	index	PRIMARY	PRIMARY	16	NULL	3	Using where; Using index
 SELECT * FROM t2 WHERE (a,b) IN ((2,'def'),(2,'def'),(2,NULL));
 a	b
 2	def
@@ -1078,7 +1078,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t3	const	PRIMARY	PRIMARY	4	const	1	Using index
 EXECUTE stmt USING 2,3,4;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t3	range	PRIMARY	PRIMARY	4	NULL	3	Using where; Using index
+1	SIMPLE	t3	index	PRIMARY	PRIMARY	4	NULL	3	Using where; Using index
 DEALLOCATE PREPARE stmt;
 DROP TABLE t1, t2, t3;
 # Nested joins
@@ -1104,7 +1104,7 @@ AND t3.a IN (1,2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	2	
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	Using join buffer (flat, BNL join)
-1	SIMPLE	t3	range	PRIMARY	PRIMARY	4	NULL	2	Using where; Using index; Using join buffer (incremental, BNL join)
+1	SIMPLE	t3	index	PRIMARY	PRIMARY	4	NULL	4	Using where; Using index; Using join buffer (incremental, BNL join)
 1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	2	Using join buffer (incremental, BNL join)
 # Conversion to equalities
 EXPLAIN SELECT * FROM t1 LEFT JOIN ((t2, t3) LEFT JOIN t4 ON t2.a = t4.a)
@@ -1118,7 +1118,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 EXPLAIN SELECT * FROM t1 LEFT JOIN ((t2, t3) LEFT JOIN t4 ON t2.a = t4.a)
 ON t1.a = t2.a WHERE t1.a IN (1,3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	PRIMARY	PRIMARY	4	NULL	2	Using index condition
+1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	3	Using where
 1	SIMPLE	t2	eq_ref	PRIMARY	PRIMARY	4	test.t1.a	1	
 1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	2	Using where
 1	SIMPLE	t3	index	NULL	PRIMARY	4	NULL	4	Using index
@@ -1131,7 +1131,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	const	PRIMARY	PRIMARY	4	const	1	
 EXPLAIN SELECT * FROM v1 WHERE a IN (1,2,3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	PRIMARY	PRIMARY	4	NULL	3	Using index condition
+1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	3	Using where
 1	SIMPLE	t2	eq_ref	PRIMARY	PRIMARY	4	test.t1.a	1	
 # Stored procedures
 CREATE PROCEDURE p1(pa INT, pb INT)
@@ -1141,7 +1141,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	const	PRIMARY	PRIMARY	4	const	1	
 CALL p1(2,1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	PRIMARY	PRIMARY	4	NULL	2	Using index condition
+1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	3	Using where
 DROP TABLE t1, t2, t3, t4;
 DROP VIEW v1;
 DROP PROCEDURE p1;
diff --git a/mysql-test/main/greedy_optimizer.result b/mysql-test/main/greedy_optimizer.result
index 7e1220d3904..f424b5036a0 100644
--- a/mysql-test/main/greedy_optimizer.result
+++ b/mysql-test/main/greedy_optimizer.result
@@ -127,7 +127,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t7	eq_ref	PRIMARY	PRIMARY	4	test.t6.c62	1	Using index
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	3350.237037
+Last_query_cost	2696.338350
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	
@@ -139,7 +139,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t7	eq_ref	PRIMARY	PRIMARY	4	test.t6.c62	1	Using index
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	3350.237037
+Last_query_cost	2696.338350
 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	
@@ -151,7 +151,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1276.787037
+Last_query_cost	1559.791393
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	
@@ -163,7 +163,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1276.787037
+Last_query_cost	1559.791393
 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	
@@ -175,7 +175,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1276.787037
+Last_query_cost	1563.335143
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	
@@ -187,7 +187,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1276.787037
+Last_query_cost	1563.335143
 set optimizer_prune_level=0;
 select @@optimizer_prune_level;
 @@optimizer_prune_level
@@ -202,24 +202,24 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t3	eq_ref	PRIMARY	PRIMARY	4	test.t2.c22	1	
 1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	12	Using where; Using join buffer (flat, BNL join)
 1	SIMPLE	t5	eq_ref	PRIMARY	PRIMARY	4	test.t4.c42	1	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 1	SIMPLE	t7	eq_ref	PRIMARY	PRIMARY	4	test.t6.c62	1	Using index
-1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	2705.237037
+Last_query_cost	2693.038350
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	Using where
 1	SIMPLE	t3	eq_ref	PRIMARY	PRIMARY	4	test.t2.c22	1	
 1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	12	Using where; Using join buffer (flat, BNL join)
 1	SIMPLE	t5	eq_ref	PRIMARY	PRIMARY	4	test.t4.c42	1	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 1	SIMPLE	t7	eq_ref	PRIMARY	PRIMARY	4	test.t6.c62	1	Using index
-1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	2705.237037
+Last_query_cost	2693.038350
 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	Using where
@@ -231,7 +231,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	701.018727
+Last_query_cost	751.472751
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	Using where
@@ -243,7 +243,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	701.018727
+Last_query_cost	751.472751
 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	Using where
@@ -255,7 +255,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	701.018727
+Last_query_cost	760.922751
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	Using where
@@ -267,7 +267,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	701.018727
+Last_query_cost	760.922751
 set optimizer_search_depth=1;
 select @@optimizer_search_depth;
 @@optimizer_search_depth
@@ -283,7 +283,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t7	eq_ref	PRIMARY	PRIMARY	4	test.t6.c62	1	Using index
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	3350.237037
+Last_query_cost	2696.338350
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	
@@ -295,7 +295,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t7	eq_ref	PRIMARY	PRIMARY	4	test.t6.c62	1	Using index
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	3350.237037
+Last_query_cost	2696.338350
 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	3	Using where
@@ -307,7 +307,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1678.037037
+Last_query_cost	2068.798851
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	3	Using where
@@ -319,7 +319,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1678.037037
+Last_query_cost	2068.798851
 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	3	Using where
@@ -331,7 +331,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1678.037037
+Last_query_cost	2073.523851
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	3	Using where
@@ -343,7 +343,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1678.037037
+Last_query_cost	2073.523851
 set optimizer_search_depth=62;
 select @@optimizer_search_depth;
 @@optimizer_search_depth
@@ -354,24 +354,24 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t3	eq_ref	PRIMARY	PRIMARY	4	test.t2.c22	1	
 1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	12	Using where; Using join buffer (flat, BNL join)
 1	SIMPLE	t5	eq_ref	PRIMARY	PRIMARY	4	test.t4.c42	1	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 1	SIMPLE	t7	eq_ref	PRIMARY	PRIMARY	4	test.t6.c62	1	Using index
-1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	2705.237037
+Last_query_cost	2693.038350
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	Using where
 1	SIMPLE	t3	eq_ref	PRIMARY	PRIMARY	4	test.t2.c22	1	
 1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	12	Using where; Using join buffer (flat, BNL join)
 1	SIMPLE	t5	eq_ref	PRIMARY	PRIMARY	4	test.t4.c42	1	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 1	SIMPLE	t7	eq_ref	PRIMARY	PRIMARY	4	test.t6.c62	1	Using index
-1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	2705.237037
+Last_query_cost	2693.038350
 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	Using where
@@ -383,7 +383,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	701.018727
+Last_query_cost	751.472751
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	Using where
@@ -395,7 +395,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	701.018727
+Last_query_cost	751.472751
 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	Using where
@@ -407,7 +407,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	701.018727
+Last_query_cost	760.922751
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	Using where
@@ -419,7 +419,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	701.018727
+Last_query_cost	760.922751
 set optimizer_prune_level=2;
 select @@optimizer_prune_level;
 @@optimizer_prune_level
@@ -439,7 +439,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t7	eq_ref	PRIMARY	PRIMARY	4	test.t6.c62	1	Using index
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	3350.237037
+Last_query_cost	2696.338350
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	
@@ -451,7 +451,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t7	eq_ref	PRIMARY	PRIMARY	4	test.t6.c62	1	Using index
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	3350.237037
+Last_query_cost	2696.338350
 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	
@@ -463,7 +463,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1276.787037
+Last_query_cost	1559.791393
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	
@@ -475,7 +475,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1276.787037
+Last_query_cost	1559.791393
 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	
@@ -487,7 +487,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1276.787037
+Last_query_cost	1563.335143
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	
@@ -499,7 +499,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1276.787037
+Last_query_cost	1563.335143
 set optimizer_search_depth=1;
 select @@optimizer_search_depth;
 @@optimizer_search_depth
@@ -515,7 +515,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t7	eq_ref	PRIMARY	PRIMARY	4	test.t6.c62	1	Using index
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	3350.237037
+Last_query_cost	2696.338350
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	
@@ -527,7 +527,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t7	eq_ref	PRIMARY	PRIMARY	4	test.t6.c62	1	Using index
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	3350.237037
+Last_query_cost	2696.338350
 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	3	Using where
@@ -539,7 +539,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1678.037037
+Last_query_cost	2068.798851
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	3	Using where
@@ -551,7 +551,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1678.037037
+Last_query_cost	2068.798851
 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	3	Using where
@@ -563,7 +563,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1678.037037
+Last_query_cost	2073.523851
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	3	Using where
@@ -575,7 +575,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1678.037037
+Last_query_cost	2073.523851
 set optimizer_search_depth=62;
 select @@optimizer_search_depth;
 @@optimizer_search_depth
@@ -591,7 +591,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t7	eq_ref	PRIMARY	PRIMARY	4	test.t6.c62	1	Using index
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	3350.237037
+Last_query_cost	2696.338350
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c12 = t2.c21 and t2.c22 = t3.c31 and t3.c32 = t4.c41 and t4.c42 = t5.c51 and t5.c52 = t6.c61 and t6.c62 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	
@@ -603,7 +603,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t7	eq_ref	PRIMARY	PRIMARY	4	test.t6.c62	1	Using index
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	3350.237037
+Last_query_cost	2696.338350
 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	
@@ -615,7 +615,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1276.787037
+Last_query_cost	1559.791393
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	
@@ -627,7 +627,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1276.787037
+Last_query_cost	1559.791393
 explain select t1.c11 from t1, t2, t3, t4, t5, t6, t7 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	
@@ -639,7 +639,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1276.787037
+Last_query_cost	1563.335143
 explain select t1.c11 from t7, t6, t5, t4, t3, t2, t1 where t1.c11 = t2.c21 and t1.c12 = t3.c31 and t1.c13 = t4.c41 and t1.c14 = t5.c51 and t1.c15 = t6.c61 and t1.c16 = t7.c71 and t2.c22 = t3.c32 and t2.c23 = t4.c42 and t2.c24 = t5.c52 and t2.c25 = t6.c62 and t2.c26 = t7.c72 and t3.c33 = t4.c43 and t3.c34 = t5.c53 and t3.c35 = t6.c63 and t3.c36 = t7.c73 and t4.c42 = t5.c54 and t4.c43 = t6.c64 and t4.c44 = t7.c74 and t5.c52 = t6.c65 and t5.c53 = t7.c75 and t6.c62 = t7.c76;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	6	
@@ -651,7 +651,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	1276.787037
+Last_query_cost	1563.335143
 drop table t1,t2,t3,t4,t5,t6,t7;
 CREATE TABLE t1 (a int, b int, d int, i int);
 INSERT INTO t1 VALUES (1,1,1,1);
@@ -802,6 +802,9 @@ WHERE t100.K=t10.I
 AND t10000.K=t10.I;
 COUNT(*)
 9
+#####
+# Expect all variants of EQ joining t100 & t10000 with T10
+# to have same cost # handler_reads:
 flush status;
 EXPLAIN SELECT COUNT(*) FROM t10,t100,t10000
 WHERE t100.K=t10.I
@@ -909,6 +912,12 @@ AND t10000.K=t10.K;
 COUNT(*)
 9
 ### NOTE: Handler_reads: 31, expected: 30 ###
+#####
+## EQ_REF Should be executed before table scan(ALL)
+## - Independent of #records in table being EQ_REF-joined
+#####
+#####
+# Expect: Join EQ_REF(t100) before ALL(t10000)
 flush status;
 EXPLAIN SELECT STRAIGHT_JOIN COUNT(*) FROM t10,t100,t10000
 WHERE t100.K=t10.I
@@ -948,6 +957,8 @@ WHERE t100.K=t10.I
 AND t10000.I=t10.I;
 COUNT(*)
 9000
+#####
+# Expect: Join EQ_REF(t10000) before ALL(t100) (star-join)
 flush status;
 EXPLAIN SELECT STRAIGHT_JOIN COUNT(*) FROM t10,t10000,t100
 WHERE t100.I=t10.I
@@ -2902,7 +2913,7 @@ EXPLAIN SELECT COUNT(*) FROM t1 AS x JOIN t1 ON t1.K=x.I JOIN t2 ON t2.K=x.I JOI
 DROP TABLE t100, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11, t12, t13, t14, t15, t16, t17, t18, t19, t20, t21, t22, t23, t24, t25, t26, t27, t28, t29, t30, t31, t32, t33, t34, t35, t36, t37, t38, t39, t40, t41, t42, t43, t44, t45, t46, t47, t48, t49, t50, t51, t52, t53, t54, t55, t56, t57, t58, t59, t60, t61;
 show status like "optimizer%";
 Variable_name	Value
-Optimizer_join_prefixes_check_calls	57916
+Optimizer_join_prefixes_check_calls	60210
 SET OPTIMIZER_SEARCH_DEPTH = DEFAULT;
 #
 # Bug found when testing greedy optimizer tests
@@ -2917,8 +2928,8 @@ explain SELECT * FROM t1 AS alias1
 WHERE alias1.col_varchar_key IN (SELECT COUNT(*) FROM t1 AS SQ3_alias2 JOIN t1 AS SQ3_alias3 ON (SQ3_alias3.col_varchar_key = SQ3_alias2.col_varchar_key AND SQ3_alias3.pk = SQ3_alias2.pk));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	alias1	index	NULL	col_varchar_key	20	NULL	2	Using where; Using index
-2	DEPENDENT SUBQUERY	SQ3_alias2	index	PRIMARY,col_varchar_key	col_varchar_key	20	NULL	2	Using index
-2	DEPENDENT SUBQUERY	SQ3_alias3	eq_ref	PRIMARY,col_varchar_key	PRIMARY	4	test.SQ3_alias2.pk	1	Using where
+2	DEPENDENT SUBQUERY	SQ3_alias2	index	PRIMARY,col_varchar_key	col_varchar_key	20	NULL	2	Using where; Using index
+2	DEPENDENT SUBQUERY	SQ3_alias3	ref	PRIMARY,col_varchar_key	col_varchar_key	11	test.SQ3_alias2.col_varchar_key	1	Using where; Using index
 drop table t1;
 #
 # This triggered an assert failure while testing
diff --git a/mysql-test/main/greedy_optimizer.test b/mysql-test/main/greedy_optimizer.test
index 2a830c70677..f2731087cd8 100644
--- a/mysql-test/main/greedy_optimizer.test
+++ b/mysql-test/main/greedy_optimizer.test
@@ -441,9 +441,9 @@ WHERE t100.K=t10.I
   AND t10000.K=t10.I;
 --source include/check_qep.inc
 
-#####
-# Expect all variants of EQ joining t100 & t10000 with T10
-# to have same cost # handler_reads:
+--echo #####
+--echo # Expect all variants of EQ joining t100 & t10000 with T10
+--echo # to have same cost # handler_reads:
 let $query=
 SELECT COUNT(*) FROM t10,t100,t10000
 WHERE t100.K=t10.I
@@ -493,12 +493,12 @@ WHERE t100.K=t10.I
 --source include/check_qep.inc
 
 
-#####
-## EQ_REF Should be executed before table scan(ALL)
-## - Independent of #records in table being EQ_REF-joined
-#####
-#####
-# Expect: Join EQ_REF(t100) before ALL(t10000)
+--echo #####
+--echo ## EQ_REF Should be executed before table scan(ALL)
+--echo ## - Independent of #records in table being EQ_REF-joined
+--echo #####
+--echo #####
+--echo # Expect: Join EQ_REF(t100) before ALL(t10000)
 let $query=
 SELECT STRAIGHT_JOIN COUNT(*) FROM t10,t100,t10000
 WHERE t100.K=t10.I
@@ -517,8 +517,8 @@ WHERE t100.K=t10.I
   AND t10000.I=t10.I;
 --source include/check_qep.inc
 
-#####
-# Expect: Join EQ_REF(t10000) before ALL(t100) (star-join)
+--echo #####
+--echo # Expect: Join EQ_REF(t10000) before ALL(t100) (star-join)
 let $query=
 SELECT STRAIGHT_JOIN COUNT(*) FROM t10,t10000,t100
 WHERE t100.I=t10.I
diff --git a/mysql-test/main/group_by.result b/mysql-test/main/group_by.result
index 443c399275f..f60f9ca106c 100644
--- a/mysql-test/main/group_by.result
+++ b/mysql-test/main/group_by.result
@@ -2457,7 +2457,7 @@ test.t1	analyze	status	OK
 
 EXPLAIN SELECT SQL_BUFFER_RESULT MIN(a), b FROM t1 WHERE t1.b = 'a' GROUP BY b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	b	b	4	const	6	Using where; Using index; Using temporary
+1	SIMPLE	t1	range	b	b	9	NULL	2	Using where; Using index for group-by; Using temporary
 
 SELECT SQL_BUFFER_RESULT MIN(a), b FROM t1 WHERE t1.b = 'a' GROUP BY b;
 MIN(a)	b
@@ -2465,7 +2465,7 @@ MIN(a)	b
 
 EXPLAIN SELECT MIN(a), b FROM t1 WHERE t1.b = 'a' GROUP BY b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	b	b	4	const	6	Using where; Using index
+1	SIMPLE	t1	range	b	b	9	NULL	2	Using where; Using index for group-by
 
 SELECT MIN(a), b FROM t1 WHERE t1.b = 'a' GROUP BY b;
 MIN(a)	b
diff --git a/mysql-test/main/group_min_max.result b/mysql-test/main/group_min_max.result
index 74685df683e..c1030cf9271 100644
--- a/mysql-test/main/group_min_max.result
+++ b/mysql-test/main/group_min_max.result
@@ -2080,7 +2080,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 explain extended select a1,a2,min(b),max(b) from t1
 where (a1 = 'b' or a1 = 'd' or a1 = 'a' or a1 = 'c') and (a2 > 'a') and (c > 'a111') group by a1,a2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	range	idx_t1_0,idx_t1_1,idx_t1_2	idx_t1_1	130	NULL	276	96.30	Using where; Using index
+1	SIMPLE	t1	range	idx_t1_0,idx_t1_1,idx_t1_2	idx_t1_1	130	NULL	276	100.00	Using where; Using index
 Warnings:
 Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2`,min(`test`.`t1`.`b`) AS `min(b)`,max(`test`.`t1`.`b`) AS `max(b)` from `test`.`t1` where (`test`.`t1`.`a1` = 'b' or `test`.`t1`.`a1` = 'd' or `test`.`t1`.`a1` = 'a' or `test`.`t1`.`a1` = 'c') and `test`.`t1`.`a2` > 'a' and `test`.`t1`.`c` > 'a111' group by `test`.`t1`.`a1`,`test`.`t1`.`a2`
 explain extended select a1,a2,b,min(c),max(c) from t1
@@ -2100,7 +2100,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	index	NULL	idx_t2_1	163	NULL	548	Using where; Using index
 explain extended select a1,a2,b from t1 where (a1 = 'b' or a1 = 'd' or a1 = 'a' or a1 = 'c') and (a2 > 'a') and (c > 'a111') group by a1,a2,b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	range	idx_t1_0,idx_t1_1,idx_t1_2	idx_t1_1	130	NULL	276	96.30	Using where; Using index
+1	SIMPLE	t1	range	idx_t1_0,idx_t1_1,idx_t1_2	idx_t1_1	130	NULL	276	100.00	Using where; Using index
 Warnings:
 Note	1003	select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2`,`test`.`t1`.`b` AS `b` from `test`.`t1` where (`test`.`t1`.`a1` = 'b' or `test`.`t1`.`a1` = 'd' or `test`.`t1`.`a1` = 'a' or `test`.`t1`.`a1` = 'c') and `test`.`t1`.`a2` > 'a' and `test`.`t1`.`c` > 'a111' group by `test`.`t1`.`a1`,`test`.`t1`.`a2`,`test`.`t1`.`b`
 explain select a1,a2,min(b),c from t2 where (a2 = 'a') and (c = 'a111') group by a1;
@@ -2368,11 +2368,11 @@ CREATE TABLE t2 (a int, b int, c int, PRIMARY KEY (a,b,c));
 INSERT INTO t2 SELECT a,b,b FROM t1;
 explain SELECT MAX(b), a FROM t1 WHERE b < 2 AND a = 1 GROUP BY a;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	a,b	a	10	NULL	6	Using where; Using index
+1	SIMPLE	t1	range	a,b	a	10	NULL	2	Using where; Using index for group-by
 insert into t1 select 1,seq from seq_1_to_100;
 explain SELECT MAX(b), a FROM t1 WHERE b < 2 AND a = 1 GROUP BY a;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	a,b	a	10	NULL	6	Using where; Using index
+1	SIMPLE	t1	range	a,b	a	10	NULL	2	Using where; Using index for group-by
 analyze table t1;
 Table	Op	Msg_type	Msg_text
 test.t1	analyze	status	Engine-independent statistics collected
@@ -2460,7 +2460,7 @@ EXPLAIN SELECT (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) x
 FROM t1 AS t1_outer;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1_outer	index	NULL	a	10	NULL	15	Using index
-2	SUBQUERY	t1	range	a	a	5	NULL	5	Using where; Using index
+2	SUBQUERY	t1	range	a	a	5	NULL	2	Using where; Using index for group-by
 EXPLAIN SELECT 1 FROM t1 AS t1_outer WHERE EXISTS 
 (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
@@ -2470,31 +2470,31 @@ EXPLAIN SELECT 1 FROM t1 AS t1_outer WHERE
 (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) > 12;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
-2	SUBQUERY	t1	range	a	a	5	NULL	5	Using where; Using index
+2	SUBQUERY	t1	range	a	a	5	NULL	2	Using where; Using index for group-by
 EXPLAIN SELECT 1 FROM t1 AS t1_outer WHERE 
 a IN (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	2	
 1	PRIMARY	t1_outer	ref	a	a	5	<subquery2>.max(b)	3	Using index
-2	MATERIALIZED	t1	range	a	a	5	NULL	5	Using where; Using index
+2	MATERIALIZED	t1	range	a	a	5	NULL	2	Using where; Using index for group-by
 EXPLAIN SELECT 1 FROM t1 AS t1_outer GROUP BY a HAVING 
 a > (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1_outer	range	NULL	a	5	NULL	6	Using index for group-by
-2	SUBQUERY	t1	range	a	a	5	NULL	5	Using where; Using index
+2	SUBQUERY	t1	range	a	a	5	NULL	2	Using where; Using index for group-by
 EXPLAIN SELECT 1 FROM t1 AS t1_outer1 JOIN t1 AS t1_outer2 
 ON t1_outer1.a = (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) 
 AND t1_outer1.b = t1_outer2.b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1_outer1	ref	a	a	5	const	1	Using where; Using index
 1	PRIMARY	t1_outer2	index	NULL	a	10	NULL	15	Using where; Using index; Using join buffer (flat, BNL join)
-2	SUBQUERY	t1	range	a	a	5	NULL	5	Using where; Using index
+2	SUBQUERY	t1	range	a	a	5	NULL	2	Using where; Using index for group-by
 EXPLAIN SELECT (SELECT (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) x
 FROM t1 AS t1_outer) x2 FROM t1 AS t1_outer2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1_outer2	index	NULL	a	10	NULL	15	Using index
 2	SUBQUERY	t1_outer	index	NULL	a	10	NULL	15	Using index
-3	SUBQUERY	t1	range	a	a	5	NULL	5	Using where; Using index
+3	SUBQUERY	t1	range	a	a	5	NULL	2	Using where; Using index for group-by
 CREATE TABLE t3 LIKE t1;
 FLUSH STATUS;
 INSERT INTO t3 SELECT a,MAX(b) FROM t1 GROUP BY a;
@@ -3794,7 +3794,7 @@ CREATE INDEX break_it ON t1 (a, b);
 EXPLAIN
 SELECT distinct a, b FROM t1 where a = '3' ORDER BY b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	break_it	break_it	5	const	6	Using where; Using index; Using filesort
+1	SIMPLE	t1	range	break_it	break_it	10	NULL	2	Using where; Using index for group-by; Using filesort
 SELECT distinct a, b FROM t1 where a = '3' ORDER BY b;
 a	b
 3	1
@@ -4036,10 +4036,10 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
 explain select min(a) from t1 where a between "a" and "Cafeeeeeeeeeeeeeeeeeeeeeeeeee";
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	a	a	13	NULL	2	Using where; Using index
+1	SIMPLE	t1	index	a	a	13	NULL	2	Using where; Using index
 explain select min(a) from t1 where a between "abbbbbbbbbbbbbbbbbbbb" and "Cafe2";
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	a	a	13	NULL	2	Using where; Using index
+1	SIMPLE	t1	index	a	a	13	NULL	2	Using where; Using index
 drop table t1;
 #
 # MDEV-15433: Optimizer does not use group by optimization with distinct
diff --git a/mysql-test/main/index_intersect.result b/mysql-test/main/index_intersect.result
index 3ec98216479..79cd7a32c1a 100644
--- a/mysql-test/main/index_intersect.result
+++ b/mysql-test/main/index_intersect.result
@@ -75,7 +75,7 @@ EXPLAIN
 SELECT * FROM City 
 WHERE Name LIKE 'M%' AND Population > 300000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	range	Population,Name	Name	35	NULL	#	Using index condition; Using where
+1	SIMPLE	City	index_merge	Population,Name	Name,Population	35,4	NULL	#	Using sort_intersect(Name,Population); Using where
 EXPLAIN
 SELECT * FROM City
 WHERE Name LIKE 'M%' AND Population > 7000000;
@@ -355,9 +355,6 @@ COUNT(*)
 SELECT COUNT(*) FROM City WHERE Country LIKE 'C%';
 COUNT(*)
 551
-SELECT COUNT(*) FROM City WHERE Country LIKE 'B%';
-COUNT(*)
-339
 SELECT COUNT(*) FROM City WHERE Country LIKE 'J%';
 COUNT(*)
 256
@@ -370,7 +367,7 @@ EXPLAIN
 SELECT * FROM City 
 WHERE Name BETWEEN 'G' AND 'K' AND Population > 1000000 AND Country LIKE 'J%';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	index_merge	Population,Country,Name	Population,Country,Name	4,3,35	NULL	#	Using sort_intersect(Population,Country,Name); Using where
+1	SIMPLE	City	index_merge	Population,Country,Name	Population,Country	4,3	NULL	#	Using sort_intersect(Population,Country); Using where
 EXPLAIN
 SELECT * FROM City 
 WHERE Name BETWEEN 'G' AND 'K' AND Population > 500000 AND Country LIKE 'C%';
@@ -476,7 +473,7 @@ EXPLAIN
 SELECT * FROM City 
 WHERE ID BETWEEN 2001 AND 2500 AND Population > 300000 AND Country LIKE 'H%';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	index_merge	PRIMARY,Population,Country	Country,PRIMARY	3,4	NULL	#	Using sort_intersect(Country,PRIMARY); Using where
+1	SIMPLE	City	range	PRIMARY,Population,Country	Country	3	NULL	#	Using index condition; Using where
 EXPLAIN
 SELECT * FROM City 
 WHERE ID BETWEEN 3701 AND 4000 AND Population > 1000000
@@ -488,7 +485,7 @@ SELECT * FROM City
 WHERE ID BETWEEN 3001 AND 4000 AND Population > 600000
 AND Country BETWEEN 'S' AND 'Z' ;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	range	PRIMARY,Population,Country	Population	4	NULL	#	Using index condition; Using where
+1	SIMPLE	City	index_merge	PRIMARY,Population,Country	Population,Country	4,3	NULL	#	Using sort_intersect(Population,Country); Using where
 SELECT * FROM City USE INDEX ()
 WHERE ID BETWEEN 501 AND 1000 AND Population > 700000 AND Country LIKE 'C%';
 ID	Name	Country	Population
@@ -715,18 +712,18 @@ EXPLAIN
 SELECT * FROM City 
 WHERE  Name BETWEEN 'G' AND 'J' AND Population > 500000 AND Country LIKE 'C%';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	range	Population,Country,Name	Name	35	NULL	#	Using index condition; Using where
+1	SIMPLE	City	index_merge	Population,Country,Name	Name,Country	35,3	NULL	#	Using sort_intersect(Name,Country); Using where
 EXPLAIN
 SELECT * FROM City
 WHERE ID BETWEEN 1 AND 500 AND Population > 700000 AND Country LIKE 'C%';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	range	PRIMARY,Population,Country	Population	4	NULL	#	Using index condition; Using where
+1	SIMPLE	City	index_merge	PRIMARY,Population,Country	Population,PRIMARY	4,4	NULL	#	Using sort_intersect(Population,PRIMARY); Using where
 EXPLAIN
 SELECT * FROM City 
 WHERE ID BETWEEN 3001 AND 4000 AND Population > 600000
 AND Country BETWEEN 'S' AND 'Z';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	range	PRIMARY,Population,Country	Population	4	NULL	#	Using index condition; Using where
+1	SIMPLE	City	index_merge	PRIMARY,Population,Country	Population,Country	4,3	NULL	#	Using sort_intersect(Population,Country); Using where
 SELECT * FROM City WHERE
 Name LIKE 'C%' AND Population > 1000000;
 ID	Name	Country	Population
@@ -966,7 +963,7 @@ EXPLAIN
 SELECT * FROM t1
 WHERE (f1 < 535  OR  f1 > 985) AND ( f4='r' OR f4 LIKE 'a%' ) ;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	PRIMARY,f4	f4	35	NULL	#	Using index condition; Using where
+1	SIMPLE	t1	index_merge	PRIMARY,f4	f4,PRIMARY	35,4	NULL	#	Using sort_intersect(f4,PRIMARY); Using where
 SELECT * FROM t1
 WHERE (f1 < 535  OR  f1 > 985) AND ( f4='r' OR f4 LIKE 'a%' ) ;
 f1	f4	f5
diff --git a/mysql-test/main/index_intersect.test b/mysql-test/main/index_intersect.test
index 26937fd5eef..d6208f67a92 100644
--- a/mysql-test/main/index_intersect.test
+++ b/mysql-test/main/index_intersect.test
@@ -120,7 +120,6 @@ SELECT COUNT(*) FROM City WHERE Name BETWEEN 'G' AND 'K';
 SELECT COUNT(*) FROM City WHERE Population > 1000000;
 SELECT COUNT(*) FROM City WHERE Population > 500000;
 SELECT COUNT(*) FROM City WHERE Country LIKE 'C%';
-SELECT COUNT(*) FROM City WHERE Country LIKE 'B%';
 SELECT COUNT(*) FROM City WHERE Country LIKE 'J%';
 
 
diff --git a/mysql-test/main/index_intersect_innodb.result b/mysql-test/main/index_intersect_innodb.result
index 44407dbcd30..5ee4f88fddd 100644
--- a/mysql-test/main/index_intersect_innodb.result
+++ b/mysql-test/main/index_intersect_innodb.result
@@ -81,12 +81,12 @@ EXPLAIN
 SELECT * FROM City 
 WHERE Name LIKE 'M%' AND Population > 300000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	range	Population,Name	Name	35	NULL	#	Using index condition; Using where
+1	SIMPLE	City	index_merge	Population,Name	Name,Population	35,4	NULL	#	Using sort_intersect(Name,Population); Using where
 EXPLAIN
 SELECT * FROM City
 WHERE Name LIKE 'M%' AND Population > 7000000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	index_merge	Population,Name	Population,Name	4,35	NULL	#	Using sort_intersect(Population,Name); Using where
+1	SIMPLE	City	range	Population,Name	Population	4	NULL	#	Using index condition; Using where
 SELECT * FROM City USE INDEX ()
 WHERE Name LIKE 'C%' AND Population > 1000000;
 ID	Name	Country	Population
@@ -341,8 +341,8 @@ ID	Name	Country	Population
 SELECT * FROM City
 WHERE Name LIKE 'M%' AND Population > 7000000;
 ID	Name	Country	Population
-1024	Mumbai (Bombay)	IND	10500000
 3580	Moscow	RUS	8389200
+1024	Mumbai (Bombay)	IND	10500000
 SELECT COUNT(*) FROM City WHERE Name BETWEEN 'M' AND 'N';
 COUNT(*)
 301
@@ -361,9 +361,6 @@ COUNT(*)
 SELECT COUNT(*) FROM City WHERE Country LIKE 'C%';
 COUNT(*)
 551
-SELECT COUNT(*) FROM City WHERE Country LIKE 'B%';
-COUNT(*)
-339
 SELECT COUNT(*) FROM City WHERE Country LIKE 'J%';
 COUNT(*)
 256
@@ -371,17 +368,17 @@ EXPLAIN
 SELECT * FROM City
 WHERE Name BETWEEN 'M' AND 'N' AND Population > 1000000 AND Country LIKE 'C%';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	index_merge	Population,Country,Name	Population,Name,Country	4,35,3	NULL	#	Using sort_intersect(Population,Name,Country); Using where
+1	SIMPLE	City	index_merge	Population,Country,Name	Population,Name	4,35	NULL	#	Using sort_intersect(Population,Name); Using where
 EXPLAIN
 SELECT * FROM City 
 WHERE Name BETWEEN 'G' AND 'K' AND Population > 1000000 AND Country LIKE 'J%';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	index_merge	Population,Country,Name	Population,Country,Name	4,3,35	NULL	#	Using sort_intersect(Population,Country,Name); Using where
+1	SIMPLE	City	index_merge	Population,Country,Name	Population,Country	4,3	NULL	#	Using sort_intersect(Population,Country); Using where
 EXPLAIN
 SELECT * FROM City 
 WHERE Name BETWEEN 'G' AND 'K' AND Population > 500000 AND Country LIKE 'C%';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	range	Population,Name,Country	Name	#	NULL	#	Using index condition; Using where
+1	SIMPLE	City	index_merge	Population,Name,Country	Name,Population,Country	#	NULL	#	Using sort_intersect(Name,Population,Country); Using where
 SELECT * FROM City USE INDEX ()
 WHERE Name BETWEEN 'M' AND 'N' AND Population > 1000000 AND Country LIKE 'C%';
 ID	Name	Country	Population
@@ -482,13 +479,13 @@ EXPLAIN
 SELECT * FROM City 
 WHERE ID BETWEEN 2001 AND 2500 AND Population > 300000 AND Country LIKE 'H%';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	index_merge	PRIMARY,Population,Country	PRIMARY,Population,Country	4,4,7	NULL	#	Using sort_intersect(PRIMARY,Population,Country); Using where
+1	SIMPLE	City	range	PRIMARY,Population,Country	Country	7	NULL	#	Using index condition; Using where
 EXPLAIN
 SELECT * FROM City 
 WHERE ID BETWEEN 3701 AND 4000 AND Population > 1000000
 AND Country BETWEEN 'S' AND 'Z';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	index_merge	PRIMARY,Population,Country	PRIMARY,Population,Country	4,4,7	NULL	#	Using sort_intersect(PRIMARY,Population,Country); Using where
+1	SIMPLE	City	index_merge	PRIMARY,Population,Country	PRIMARY,Population	4,4	NULL	#	Using sort_intersect(PRIMARY,Population); Using where
 EXPLAIN
 SELECT * FROM City 
 WHERE ID BETWEEN 3001 AND 4000 AND Population > 600000
@@ -721,7 +718,7 @@ EXPLAIN
 SELECT * FROM City 
 WHERE  Name BETWEEN 'G' AND 'J' AND Population > 500000 AND Country LIKE 'C%';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	range	Population,Country,Name	Name	35	NULL	#	Using index condition; Using where
+1	SIMPLE	City	index_merge	Population,Country,Name	Name,Population,Country	35,4,3	NULL	#	Using sort_intersect(Name,Population,Country); Using where
 EXPLAIN
 SELECT * FROM City
 WHERE ID BETWEEN 1 AND 500 AND Population > 700000 AND Country LIKE 'C%';
@@ -732,7 +729,7 @@ SELECT * FROM City
 WHERE ID BETWEEN 3001 AND 4000 AND Population > 600000
 AND Country BETWEEN 'S' AND 'Z';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	range	PRIMARY,Population,Country	PRIMARY	4	NULL	#	Using where
+1	SIMPLE	City	index_merge	PRIMARY,Population,Country	PRIMARY,Population,Country	4,4,7	NULL	#	Using sort_intersect(PRIMARY,Population,Country); Using where
 SELECT * FROM City WHERE
 Name LIKE 'C%' AND Population > 1000000;
 ID	Name	Country	Population
diff --git a/mysql-test/main/index_merge_myisam.result b/mysql-test/main/index_merge_myisam.result
index 1ecc1ded83a..7d10500d34d 100644
--- a/mysql-test/main/index_merge_myisam.result
+++ b/mysql-test/main/index_merge_myisam.result
@@ -683,7 +683,7 @@ key1	key2	key3	key4	filler1
 -1	-1	100	100	key4-key3
 explain select key1,key2,key3 from t1 where key1=100 and key2=100 and key3=100;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	key1,key2,key3	key1,key2,key3	5,5,5	NULL	2	Using intersect(key1,key2,key3); Using where; Using index
+1	SIMPLE	t1	index_merge	key1,key2,key3	key1,key2	5,5	NULL	77	Using intersect(key1,key2); Using where
 select key1,key2,key3 from t1 where key1=100 and key2=100 and key3=100;
 key1	key2	key3
 100	100	100
@@ -768,7 +768,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ref	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a	sta_swt21a	12	const,const,const	971	
 explain select * from t1 where st_b=1 and swt1b=1 and swt2b=1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	stb_swt1a_2b,stb_swt1b,st_b	stb_swt1a_2b	8	const,const	3879	Using where
+1	SIMPLE	t1	ref	stb_swt1a_2b,stb_swt1b,st_b	stb_swt1b	8	const,const	3885	Using where
 explain select * from t1 where st_a=1 and swt1a=1 and swt2a=1 and st_b=1 and swt1b=1 and swt2b=1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	index_merge	sta_swt12a,sta_swt1a,sta_swt2a,sta_swt21a,st_a,stb_swt1a_2b,stb_swt1b,st_b	sta_swt12a,stb_swt1a_2b	12,12	NULL	58	Using intersect(sta_swt12a,stb_swt1a_2b); Using where
@@ -910,7 +910,7 @@ INSERT INTO t1 (key1, key2, filler)
 SELECT seq/4, seq/8, 'filler-data' FROM seq_30_to_0;
 explain select pk from t1 where key1 = 1 and key2 = 1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	key1,key2	key1	5	const	4	Using where
+1	SIMPLE	t1	index_merge	key1,key2	key1,key2	5,4	NULL	1	Using intersect(key1,key2); Using where
 select pk from t1 where key2 = 1 and key1 = 1;
 pk
 26
@@ -1487,7 +1487,7 @@ EXPLAIN SELECT t1.f1 FROM t1
 WHERE (SELECT COUNT(*) FROM t2 WHERE t2.f3 = 'h' AND t2.f2 = t1.f1) = 0 AND t1.f1 = 2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	PRIMARY	NULL	NULL	NULL	1	
-2	SUBQUERY	t2	ref	f2,f3	f3	2	const	2	Using index condition; Using where
+2	SUBQUERY	t2	index_merge	f2,f3	f3,f2	2,5	NULL	1	Using intersect(f3,f2); Using where; Using index
 DROP TABLE t1,t2;
 create table t0 (a int);
 insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
diff --git a/mysql-test/main/innodb_ext_key,off.rdiff b/mysql-test/main/innodb_ext_key,off.rdiff
index b334d006737..274d1cc47e4 100644
--- a/mysql-test/main/innodb_ext_key,off.rdiff
+++ b/mysql-test/main/innodb_ext_key,off.rdiff
@@ -1,17 +1,20 @@
---- innodb_ext_key.result
-+++ innodb_ext_key,off.result
+--- main/innodb_ext_key.result
++++ main/innodb_ext_key,off.reject
 @@ -9,7 +9,7 @@
  explain
  select count(*) from lineitem where l_orderkey=130 and l_shipdate='1992-07-01';
  id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 -1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_shipdate	8	const,const	1	Using index
-+1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_shipdate	4	const	6	Using where; Using index
++1	SIMPLE	lineitem	index_merge	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey,i_l_shipdate	4,4	NULL	1	Using intersect(i_l_orderkey,i_l_shipdate); Using where; Using index
  flush status;
  select count(*) from lineitem where l_orderkey=130 and l_shipdate='1992-07-01';
  count(*)
-@@ -19,7 +19,7 @@
+@@ -17,9 +17,9 @@
+ show status like 'handler_read%';
+ Variable_name	Value
  Handler_read_first	0
- Handler_read_key	1
+-Handler_read_key	1
++Handler_read_key	2
  Handler_read_last	0
 -Handler_read_next	1
 +Handler_read_next	6
@@ -95,13 +98,16 @@
  where l_shipdate='1992-07-01' and l_orderkey=130;
  id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 -1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
-+1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_shipdate	4	const	6	Using where; Using index
++1	SIMPLE	lineitem	index_merge	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey,i_l_shipdate	4,4	NULL	1	Using intersect(i_l_orderkey,i_l_shipdate); Using where; Using index
  flush status;
  select max(l_linenumber) from lineitem 
  where l_shipdate='1992-07-01' and l_orderkey=130;
-@@ -145,7 +145,7 @@
+@@ -143,9 +143,9 @@
+ show status like 'handler_read%';
+ Variable_name	Value
  Handler_read_first	0
- Handler_read_key	1
+-Handler_read_key	1
++Handler_read_key	2
  Handler_read_last	0
 -Handler_read_next	0
 +Handler_read_next	6
@@ -249,7 +255,7 @@
  drop table t1,t2,t3;
  #
  # Bug mdev-4340: performance regression with extended_keys=on   
-@@ -714,13 +714,13 @@
+@@ -725,13 +725,13 @@
  select * from t1 force index(index_date_updated) 
  where index_date_updated= 10 and index_id < 800;
  id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
@@ -265,7 +271,7 @@
  drop table t0,t1,t2;
  #
  # MDEV-11196: Error:Run-Time Check Failure #2 - Stack around the variable 'key_buff'
-@@ -768,11 +768,12 @@
+@@ -766,13 +766,14 @@
        {
          "table": {
            "table_name": "t1",
@@ -279,9 +285,12 @@
 +          "used_key_parts": ["f2"],
 +          "ref": ["const"],
            "rows": 1,
-           "filtered": 100,
+-          "filtered": 50,
++          "filtered": 100,
            "index_condition": "t1.pk1 <= 5 and t1.pk2 <= 5 and t1.f2 = 'abc'",
-@@ -805,8 +806,8 @@
+       "attached_condition": "t1.f1 <= '3'"
+     }
+@@ -799,8 +800,8 @@
            "access_type": "range",
            "possible_keys": ["k1"],
            "key": "k1",
@@ -290,5 +299,5 @@
 +          "key_length": "3007",
 +          "used_key_parts": ["pk1", "f2"],
            "rows": 1,
-           "filtered": 100,
+           "filtered": 50,
            "index_condition": "t1.f2 <= 5 and t1.pk2 <= 5 and t1.pk1 = 'abc'",
diff --git a/mysql-test/main/innodb_ext_key.result b/mysql-test/main/innodb_ext_key.result
index 18a3d147bf3..62b143726b2 100644
--- a/mysql-test/main/innodb_ext_key.result
+++ b/mysql-test/main/innodb_ext_key.result
@@ -386,8 +386,8 @@ WHERE c = a AND b IN (SELECT b FROM t1, t2 WHERE b = t.b);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t	index	a,b	b	7	NULL	10	Using index
 1	PRIMARY	t2	eq_ref	PRIMARY	PRIMARY	4	test.t.a	1	Using index
-1	PRIMARY	t1	ref	b	b	3	test.t.b	2	Using index; Start temporary
-1	PRIMARY	t2	index	NULL	PRIMARY	4	NULL	11	Using index; End temporary; Using join buffer (flat, BNL join)
+1	PRIMARY	t1	ref	b	b	3	test.t.b	2	Using index
+1	PRIMARY	t2	index	NULL	PRIMARY	4	NULL	11	Using index; FirstMatch(t2)
 SELECT a FROM t1 AS t, t2 
 WHERE c = a AND b IN (SELECT b FROM t1, t2 WHERE b = t.b);
 a
@@ -638,14 +638,14 @@ test.t2	analyze	status	Engine-independent statistics collected
 test.t2	analyze	status	OK
 explain select a from t1 where b is null order by a desc limit 2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index	b	PRIMARY	8	NULL	2	Using where
+1	SIMPLE	t1	range	b	b	9	NULL	3	Using where; Using filesort
 select a from t1 where b is null order by a desc limit 2;
 a
 3
 2
 explain select a from t2 where b is null order by a desc limit 2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	range	b	b	9	NULL	3	Using where; Using filesort
+1	SIMPLE	t2	index	b	PRIMARY	8	NULL	2	Using where
 select a from t2 where b is null order by a desc limit 2;
 a
 3
@@ -774,7 +774,7 @@ EXPLAIN
           "key_length": "3070",
           "used_key_parts": ["f2", "pk1"],
           "rows": 1,
-          "filtered": 100,
+          "filtered": 50,
           "index_condition": "t1.pk1 <= 5 and t1.pk2 <= 5 and t1.f2 = 'abc'",
           "attached_condition": "t1.f1 <= '3'"
         }
@@ -808,7 +808,7 @@ EXPLAIN
           "key_length": "3011",
           "used_key_parts": ["pk1", "f2", "pk2"],
           "rows": 1,
-          "filtered": 100,
+          "filtered": 50,
           "index_condition": "t1.f2 <= 5 and t1.pk2 <= 5 and t1.pk1 = 'abc'",
           "attached_condition": "t1.f1 <= '3'"
         }
diff --git a/mysql-test/main/join.result b/mysql-test/main/join.result
index 8f75105c30d..b56f35f475e 100644
--- a/mysql-test/main/join.result
+++ b/mysql-test/main/join.result
@@ -880,7 +880,7 @@ select @a:= A.a + 10*(B.a + 10*C.a), @a, 'filler' from t1 A, t1 B, t1 C;
 insert into t3 select * from t2 where a < 800;
 explain select * from t2,t3 where t2.a < 200 and t2.b=t3.b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	ALL	a,b	NULL	NULL	NULL	1000	Using where
+1	SIMPLE	t2	range	a,b	a	5	NULL	198	Using index condition; Using where
 1	SIMPLE	t3	ref	b	b	5	test.t2.b	1	
 drop table t1, t2, t3;
 create table t1 (a int);
@@ -892,13 +892,14 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	6.016090
+Last_query_cost	3.508545
 select 'The cost of accessing t1 (dont care if it changes' '^';
 The cost of accessing t1 (dont care if it changes
 The cost of accessing t1 (dont care if it changes^
 select 'vv: Following query must use ALL(t1), eq_ref(A), eq_ref(B): vv' Z;
 Z
 vv: Following query must use ALL(t1), eq_ref(A), eq_ref(B): vv
+set @@optimizer_cache_hit_ratio=0;
 explain select * from t1, t2 A, t2 B where A.a = t1.a and B.a=A.b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	Using where
@@ -906,10 +907,11 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	B	eq_ref	PRIMARY	PRIMARY	4	test.A.b	1	
 show status like 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	34.016090
-select '^^: The above should be ~= 20 + cost(select * from t1). Value less than 20 is an error' Z;
+Last_query_cost	48.527829
+select '^^: The above should be ~= 40 + cost(select * from t1). Value less than 40 is an error' Z;
 Z
-^^: The above should be ~= 20 + cost(select * from t1). Value less than 20 is an error
+^^: The above should be ~= 40 + cost(select * from t1). Value less than 40 is an error
+set @@optimizer_cache_hit_ratio=default;
 drop table t1, t2;
 CREATE TABLE t1 (a INT PRIMARY KEY, b INT);
 CREATE TABLE t2 (c INT PRIMARY KEY, d INT);
@@ -1274,20 +1276,24 @@ test.t1	analyze	status	Engine-independent statistics collected
 test.t1	analyze	status	OK
 test.t2	analyze	status	Engine-independent statistics collected
 test.t2	analyze	status	OK
+explain SELECT * FROM t1 JOIN t2 ON t1.v = t2.v WHERE t2.v IS NULL ORDER BY 1;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t2	ALL	ix2	NULL	NULL	NULL	2	Using where; Using temporary; Using filesort
+1	SIMPLE	t1	ref	ix1	ix1	5	test.t2.v	1	
 FLUSH STATUS;
 SELECT * FROM t1 JOIN t2 ON t1.v = t2.v WHERE t2.v IS NULL ORDER BY 1;
 pk	v	pk	v
 SHOW STATUS LIKE 'Handler_read_%';
 Variable_name	Value
 Handler_read_first	0
-Handler_read_key	14
+Handler_read_key	0
 Handler_read_last	0
 Handler_read_next	0
 Handler_read_prev	0
 Handler_read_retry	0
 Handler_read_rnd	0
 Handler_read_rnd_deleted	0
-Handler_read_rnd_next	1
+Handler_read_rnd_next	4
 DROP TABLE t1, t2;
 End of 5.1 tests
 #
@@ -1473,8 +1479,8 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	DU	system	dog_id	NULL	NULL	NULL	1	
 1	SIMPLE	D	system	PRIMARY	NULL	NULL	NULL	1	
 1	SIMPLE	DSAR	system	NULL	NULL	NULL	NULL	1	
-1	SIMPLE	DSA	ref	PRIMARY	PRIMARY	4	const	3	Using where; Using index
-1	SIMPLE	DT	ALL	t_id	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	DT	ALL	t_id	NULL	NULL	NULL	2	Using where
+1	SIMPLE	DSA	ref	PRIMARY	PRIMARY	8	const,test.DT.t_id,func	1	Using index
 SELECT * FROM t5 DU, t1 D, t4 DT, t2 DSA, t3 DSAR
 WHERE DU.dog_id=D.dog_id AND D.dog_id=DT.dog_id AND D.birthday=DT.birthday AND
 DT.t_id=DSA.t_id AND DT.birthday=DSA.birthday AND DSA.dog_id=DSAR.dog_id;
diff --git a/mysql-test/main/join.test b/mysql-test/main/join.test
index 88f30540589..a3756af023a 100644
--- a/mysql-test/main/join.test
+++ b/mysql-test/main/join.test
@@ -697,12 +697,11 @@ select 'The cost of accessing t1 (dont care if it changes' '^';
 
 select 'vv: Following query must use ALL(t1), eq_ref(A), eq_ref(B): vv' Z;
 
+set @@optimizer_cache_hit_ratio=0;
 explain select * from t1, t2 A, t2 B where A.a = t1.a and B.a=A.b;
 show status like 'Last_query_cost';
-select '^^: The above should be ~= 20 + cost(select * from t1). Value less than 20 is an error' Z;
-
-
-
+select '^^: The above should be ~= 40 + cost(select * from t1). Value less than 40 is an error' Z;
+set @@optimizer_cache_hit_ratio=default;
 drop table t1, t2;
 
 #
@@ -957,6 +956,9 @@ INSERT INTO t1 VALUES (3,'b'),(4,NULL),(5,'c'),(6,'cc'),(7,'d'),
   (8,'dd'),(9,'e'),(10,'ee');
 INSERT INTO t2 VALUES (2,NULL);
 ANALYZE TABLE t1,t2;
+# This will ensure that status tables are read now and not part of the later
+# Handler_read% counts
+explain SELECT * FROM t1 JOIN t2 ON t1.v = t2.v WHERE t2.v IS NULL ORDER BY 1;
 FLUSH STATUS;
 SELECT * FROM t1 JOIN t2 ON t1.v = t2.v WHERE t2.v IS NULL ORDER BY 1;
 SHOW STATUS LIKE 'Handler_read_%';
diff --git a/mysql-test/main/join_cache.result b/mysql-test/main/join_cache.result
index 3c9d1f020b9..fe40178a8da 100644
--- a/mysql-test/main/join_cache.result
+++ b/mysql-test/main/join_cache.result
@@ -53,6 +53,7 @@ set join_cache_level=1;
 show variables like 'join_cache_level';
 Variable_name	Value
 join_cache_level	1
+# Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
@@ -60,6 +61,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	City	ALL	NULL	NULL	NULL	NULL	4079	Using where; Using join buffer (flat, BNL join)
+# Query 2
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
 Country.Name LIKE 'L%' AND City.Population > 100000;
@@ -79,6 +81,7 @@ Tripoli	Lebanon
 Tripoli	Libyan Arab Jamahiriya
 Vientiane	Laos
 Vilnius	Lithuania
+# Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
@@ -91,6 +94,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	CountryLanguage	ALL	NULL	NULL	NULL	NULL	984	Using where; Using join buffer (flat, BNL join)
 1	SIMPLE	City	ALL	NULL	NULL	NULL	NULL	4079	Using where; Using join buffer (flat, BNL join)
+# Query 4
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
 WHERE City.Country=Country.Code AND
@@ -131,6 +135,7 @@ set join_cache_level=2;
 show variables like 'join_cache_level';
 Variable_name	Value
 join_cache_level	2
+# join_cache_level 2, Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
@@ -138,6 +143,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	City	ALL	NULL	NULL	NULL	NULL	4079	Using where; Using join buffer (flat, BNL join)
+# join_cache_level 2, Query 2
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
 Country.Name LIKE 'L%' AND City.Population > 100000;
@@ -157,6 +163,7 @@ Tripoli	Lebanon
 Tripoli	Libyan Arab Jamahiriya
 Vientiane	Laos
 Vilnius	Lithuania
+# join_cache_level 2, Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
@@ -169,6 +176,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	CountryLanguage	ALL	NULL	NULL	NULL	NULL	984	Using where; Using join buffer (flat, BNL join)
 1	SIMPLE	City	ALL	NULL	NULL	NULL	NULL	4079	Using where; Using join buffer (incremental, BNL join)
+# join_cache_level 2, Query 4
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
 WHERE City.Country=Country.Code AND
@@ -209,6 +217,7 @@ set join_cache_level=3;
 show variables like 'join_cache_level';
 Variable_name	Value
 join_cache_level	3
+# join_cache_level 3, Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
@@ -216,6 +225,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	City	hash_ALL	NULL	#hash#$hj	3	world.Country.Code	4079	Using where; Using join buffer (flat, BNLH join)
+# join_cache_level 3, Query 2
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
 Country.Name LIKE 'L%' AND City.Population > 100000;
@@ -235,6 +245,7 @@ Tripoli	Lebanon
 Tripoli	Libyan Arab Jamahiriya
 Vientiane	Laos
 Vilnius	Lithuania
+# join_cache_level 3, Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
@@ -247,6 +258,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	CountryLanguage	hash_ALL	NULL	#hash#$hj	3	world.Country.Code	984	Using where; Using join buffer (flat, BNLH join)
 1	SIMPLE	City	hash_ALL	NULL	#hash#$hj	3	world.Country.Code	4079	Using where; Using join buffer (flat, BNLH join)
+# join_cache_level 3, Query 4
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
 WHERE City.Country=Country.Code AND
@@ -287,6 +299,7 @@ set join_cache_level=4;
 show variables like 'join_cache_level';
 Variable_name	Value
 join_cache_level	4
+# join_cache_level 4, Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
@@ -294,6 +307,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	City	hash_ALL	NULL	#hash#$hj	3	world.Country.Code	4079	Using where; Using join buffer (flat, BNLH join)
+# join_cache_level 4, Query 2
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
 Country.Name LIKE 'L%' AND City.Population > 100000;
@@ -313,6 +327,7 @@ Tripoli	Lebanon
 Tripoli	Libyan Arab Jamahiriya
 Vientiane	Laos
 Vilnius	Lithuania
+# join_cache_level 4, Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
@@ -325,6 +340,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	CountryLanguage	hash_ALL	NULL	#hash#$hj	3	world.Country.Code	984	Using where; Using join buffer (flat, BNLH join)
 1	SIMPLE	City	hash_ALL	NULL	#hash#$hj	3	world.Country.Code	4079	Using where; Using join buffer (incremental, BNLH join)
+# join_cache_level 4, Query 4
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
 WHERE City.Country=Country.Code AND
@@ -361,6 +377,7 @@ Ludwigshafen am Rhein	Germany	German
 Lungtan	Taiwan	Min
 L´Hospitalet de Llobregat	Spain	Spanish
 Lázaro Cárdenas	Mexico	Spanish
+# join_cache_level 4, Query 5
 SELECT Country.Name, Country.Population, City.Name, City.Population 
 FROM Country LEFT JOIN City
 ON City.Country=Country.Code AND City.Population > 5000000
@@ -379,6 +396,7 @@ Canada	31147000	NULL	NULL
 Cuba	11201000	NULL	NULL
 Côte d?Ivoire	14786000	NULL	NULL
 Czech Republic	10278100	NULL	NULL
+# join_cache_level 4, Query 6
 SELECT Country.Name, Country.Population, City.Name, City.Population
 FROM Country LEFT JOIN City 
 ON City.Country=Country.Code AND
@@ -404,6 +422,7 @@ Czech Republic	10278100	NULL	NULL
 CREATE INDEX City_Population ON City(Population);
 CREATE INDEX City_Name ON City(Name);
 ANALYZE TABLE City;
+# After Analyze, Query 1
 EXPLAIN
 SELECT Country.Name, Country.Population, City.Name, City.Population 
 FROM Country LEFT JOIN City
@@ -412,6 +431,7 @@ WHERE Country.Name LIKE 'C%' AND Country.Population > 10000000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	City	hash_range	City_Population	#hash#$hj:City_Population	3:4	world.Country.Code	24	Using where; Rowid-ordered scan; Using join buffer (flat, BNLH join)
+# After Analyze, Query 2
 SELECT Country.Name, Country.Population, City.Name, City.Population 
 FROM Country LEFT JOIN City
 ON City.Country=Country.Code AND City.Population > 5000000
@@ -430,6 +450,7 @@ Canada	31147000	NULL	NULL
 Cuba	11201000	NULL	NULL
 Côte d?Ivoire	14786000	NULL	NULL
 Czech Republic	10278100	NULL	NULL
+# After Analyze, Query 3
 EXPLAIN
 SELECT Country.Name, Country.Population, City.Name, City.Population
 FROM Country LEFT JOIN City 
@@ -439,6 +460,7 @@ WHERE Country.Name LIKE 'C%' AND Country.Population > 10000000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	City	hash_index_merge	City_Population,City_Name	#hash#$hj:City_Population,City_Name	3:4,35	world.Country.Code	96	Using sort_union(City_Population,City_Name); Using where; Using join buffer (flat, BNLH join)
+# After Analyze, Query 4
 SELECT Country.Name, Country.Population, City.Name, City.Population
 FROM Country LEFT JOIN City 
 ON City.Country=Country.Code AND
@@ -471,6 +493,7 @@ join_buffer_size	256
 show variables like 'join_cache_level';
 Variable_name	Value
 join_cache_level	1
+# join_cache_level 1, Join_buffer_size, Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
@@ -478,6 +501,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	City	ALL	NULL	NULL	NULL	NULL	4079	Using where; Using join buffer (flat, BNL join)
+# join_cache_level 1, Join_buffer_size, Query 2
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
 Country.Name LIKE 'L%' AND City.Population > 100000;
@@ -497,6 +521,7 @@ Tripoli	Lebanon
 Tripoli	Libyan Arab Jamahiriya
 Vientiane	Laos
 Vilnius	Lithuania
+# join_cache_level 1, Join_buffer_size, Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
@@ -509,6 +534,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	CountryLanguage	ALL	NULL	NULL	NULL	NULL	984	Using where; Using join buffer (flat, BNL join)
 1	SIMPLE	City	ALL	NULL	NULL	NULL	NULL	4079	Using where; Using join buffer (flat, BNL join)
+# join_cache_level 1, Join_buffer_size, Query 4
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
 WHERE City.Country=Country.Code AND
@@ -549,6 +575,7 @@ set join_cache_level=2;
 show variables like 'join_cache_level';
 Variable_name	Value
 join_cache_level	2
+# join_cache_level 2, Join_buffer_size, Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
@@ -556,6 +583,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	City	ALL	NULL	NULL	NULL	NULL	4079	Using where; Using join buffer (flat, BNL join)
+# join_cache_level 2, Join_buffer_size, Query 2
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
 Country.Name LIKE 'L%' AND City.Population > 100000;
@@ -575,6 +603,7 @@ Tripoli	Lebanon
 Tripoli	Libyan Arab Jamahiriya
 Vientiane	Laos
 Vilnius	Lithuania
+# join_cache_level 2, Join_buffer_size, Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
@@ -587,6 +616,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	CountryLanguage	ALL	NULL	NULL	NULL	NULL	984	Using where; Using join buffer (flat, BNL join)
 1	SIMPLE	City	ALL	NULL	NULL	NULL	NULL	4079	Using where; Using join buffer (incremental, BNL join)
+# join_cache_level 2, Join_buffer_size, Query 4
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
 WHERE City.Country=Country.Code AND
@@ -627,6 +657,7 @@ set join_cache_level=3;
 show variables like 'join_cache_level';
 Variable_name	Value
 join_cache_level	3
+# join_cache_level 3, Join_buffer_size, Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
@@ -634,6 +665,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	City	hash_ALL	NULL	#hash#$hj	3	world.Country.Code	4079	Using where; Using join buffer (flat, BNLH join)
+# join_cache_level 3, Join_buffer_size, Query 2
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
 Country.Name LIKE 'L%' AND City.Population > 100000;
@@ -653,6 +685,7 @@ Tripoli	Lebanon
 Tripoli	Libyan Arab Jamahiriya
 Vientiane	Laos
 Vilnius	Lithuania
+# join_cache_level 3, Join_buffer_size, Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
@@ -665,6 +698,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	CountryLanguage	hash_ALL	NULL	#hash#$hj	3	world.Country.Code	984	Using where; Using join buffer (flat, BNLH join)
 1	SIMPLE	City	hash_ALL	NULL	#hash#$hj	3	world.Country.Code	4079	Using where; Using join buffer (flat, BNLH join)
+# join_cache_level 3, Join_buffer_size, Query 4
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
 WHERE City.Country=Country.Code AND
@@ -705,6 +739,7 @@ set join_cache_level=4;
 show variables like 'join_cache_level';
 Variable_name	Value
 join_cache_level	4
+# join_cache_level 4, Join_buffer_size, Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
@@ -712,6 +747,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	City	hash_ALL	NULL	#hash#$hj	3	world.Country.Code	4079	Using where; Using join buffer (flat, BNLH join)
+# join_cache_level 4, Join_buffer_size, Query 2
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
 Country.Name LIKE 'L%' AND City.Population > 100000;
@@ -731,6 +767,7 @@ Tripoli	Lebanon
 Tripoli	Libyan Arab Jamahiriya
 Vientiane	Laos
 Vilnius	Lithuania
+# join_cache_level 4, Join_buffer_size, Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
@@ -743,6 +780,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	CountryLanguage	hash_ALL	NULL	#hash#$hj	3	world.Country.Code	984	Using where; Using join buffer (flat, BNLH join)
 1	SIMPLE	City	hash_ALL	NULL	#hash#$hj	3	world.Country.Code	4079	Using where; Using join buffer (incremental, BNLH join)
+# join_cache_level 4, Join_buffer_size, Query 4
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
 WHERE City.Country=Country.Code AND
@@ -816,6 +854,7 @@ set join_cache_level=3;
 show variables like 'join_cache_level';
 Variable_name	Value
 join_cache_level	3
+# Part 2, join_cache_level=3, Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
@@ -823,6 +862,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	range	PRIMARY,Name	Name	52	NULL	10	Using index condition; Rowid-ordered scan
 1	SIMPLE	City	hash_ALL	Population,Country	#hash#Country	3	world.Country.Code	4079	Using where; Using join buffer (flat, BNLH join)
+# Part 2, join_cache_level=3, Query 2
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
 Country.Name LIKE 'L%' AND City.Population > 100000;
@@ -842,6 +882,7 @@ Tripoli	Lebanon
 Tripoli	Libyan Arab Jamahiriya
 Vientiane	Laos
 Vilnius	Lithuania
+# Part 2, join_cache_level=3, Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
@@ -853,7 +894,8 @@ LENGTH(Language) < LENGTH(City.Name) - 2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	City	ALL	Country	NULL	NULL	NULL	4079	Using where
 1	SIMPLE	Country	hash_ALL	PRIMARY	#hash#PRIMARY	3	world.City.Country	239	Using where; Using join buffer (flat, BNLH join)
-1	SIMPLE	CountryLanguage	hash_ALL|filter	PRIMARY,Percentage	#hash#PRIMARY|Percentage	3|4	world.City.Country	984 (19%)	Using where; Using join buffer (flat, BNLH join); Using rowid filter
+1	SIMPLE	CountryLanguage	hash_range	PRIMARY,Percentage	#hash#PRIMARY:Percentage	3:4	world.City.Country	185	Using where; Rowid-ordered scan; Using join buffer (flat, BNLH join)
+# Part 2, join_cache_level=3, Query 4
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
 WHERE City.Country=Country.Code AND
@@ -890,6 +932,7 @@ Ludwigshafen am Rhein	Germany	German
 Lungtan	Taiwan	Min
 L´Hospitalet de Llobregat	Spain	Spanish
 Lázaro Cárdenas	Mexico	Spanish
+# Part 2, join_cache_level=3, Query 5
 EXPLAIN
 SELECT Name FROM City
 WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND
@@ -897,6 +940,7 @@ City.Population > 100000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	Country	range	PRIMARY,Name	Name	52	NULL	10	Using index condition; Rowid-ordered scan
 1	PRIMARY	City	hash_ALL	Population,Country	#hash#Country	3	world.Country.Code	4079	Using where; Using join buffer (flat, BNLH join)
+# Part 2, join_cache_level=3, Query 6
 SELECT Name FROM City
 WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND
 City.Population > 100000;
@@ -916,6 +960,7 @@ Kaunas
 Klaipeda
 ?iauliai
 Panevezys
+# Part 2, join_cache_level=3, Query 7
 EXPLAIN
 SELECT Country.Name, IF(ISNULL(CountryLanguage.Country), NULL, CountryLanguage.Percentage)
 FROM Country LEFT JOIN CountryLanguage ON
@@ -925,6 +970,7 @@ Country.Population > 10000000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	CountryLanguage	hash_ALL	PRIMARY	#hash#PRIMARY	33	world.Country.Code,const	984	Using where; Using join buffer (flat, BNLH join)
+# Part 2, join_cache_level=3, Query 8
 SELECT Country.Name, IF(ISNULL(CountryLanguage.Country), NULL, CountryLanguage.Percentage)
 FROM Country LEFT JOIN CountryLanguage ON
 (CountryLanguage.Country=Country.Code AND Language='English')
@@ -1016,6 +1062,7 @@ set join_cache_level=4;
 show variables like 'join_cache_level';
 Variable_name	Value
 join_cache_level	4
+# Part 2, join_cache_level=4, Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
@@ -1023,6 +1070,7 @@ Country.Name LIKE 'L%' AND City.Population > 100000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	range	PRIMARY,Name	Name	52	NULL	10	Using index condition; Rowid-ordered scan
 1	SIMPLE	City	hash_ALL	Population,Country	#hash#Country	3	world.Country.Code	4079	Using where; Using join buffer (flat, BNLH join)
+# Part 2, join_cache_level=4, Query 2
 SELECT City.Name, Country.Name FROM City,Country
 WHERE City.Country=Country.Code AND 
 Country.Name LIKE 'L%' AND City.Population > 100000;
@@ -1042,6 +1090,7 @@ Tripoli	Lebanon
 Tripoli	Libyan Arab Jamahiriya
 Vientiane	Laos
 Vilnius	Lithuania
+# Part 2, join_cache_level=4, Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
@@ -1053,7 +1102,8 @@ LENGTH(Language) < LENGTH(City.Name) - 2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	City	ALL	Country	NULL	NULL	NULL	4079	Using where
 1	SIMPLE	Country	hash_ALL	PRIMARY	#hash#PRIMARY	3	world.City.Country	239	Using where; Using join buffer (flat, BNLH join)
-1	SIMPLE	CountryLanguage	hash_ALL|filter	PRIMARY,Percentage	#hash#PRIMARY|Percentage	3|4	world.City.Country	984 (19%)	Using where; Using join buffer (incremental, BNLH join); Using rowid filter
+1	SIMPLE	CountryLanguage	hash_range	PRIMARY,Percentage	#hash#PRIMARY:Percentage	3:4	world.City.Country	185	Using where; Rowid-ordered scan; Using join buffer (incremental, BNLH join)
+# Part 2, join_cache_level=4, Query 4
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
 WHERE City.Country=Country.Code AND
@@ -1090,6 +1140,7 @@ Ludwigshafen am Rhein	Germany	German
 Lungtan	Taiwan	Min
 L´Hospitalet de Llobregat	Spain	Spanish
 Lázaro Cárdenas	Mexico	Spanish
+# Part 2, join_cache_level=4, Query 5
 EXPLAIN
 SELECT Name FROM City
 WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND
@@ -1097,6 +1148,7 @@ City.Population > 100000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	Country	range	PRIMARY,Name	Name	52	NULL	10	Using index condition; Rowid-ordered scan
 1	PRIMARY	City	hash_ALL	Population,Country	#hash#Country	3	world.Country.Code	4079	Using where; Using join buffer (flat, BNLH join)
+# Part 2, join_cache_level=4, Query 6
 SELECT Name FROM City
 WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND
 City.Population > 100000;
@@ -1116,6 +1168,7 @@ Kaunas
 Klaipeda
 ?iauliai
 Panevezys
+# Part 2, join_cache_level=4, Query 7
 EXPLAIN
 SELECT Country.Name, IF(ISNULL(CountryLanguage.Country), NULL, CountryLanguage.Percentage)
 FROM Country LEFT JOIN CountryLanguage ON
@@ -1125,6 +1178,7 @@ Country.Population > 10000000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	ALL	NULL	NULL	NULL	NULL	239	Using where
 1	SIMPLE	CountryLanguage	hash_ALL	PRIMARY	#hash#PRIMARY	33	world.Country.Code,const	984	Using where; Using join buffer (flat, BNLH join)
+# Part 2, join_cache_level=4, Query 8
 SELECT Country.Name, IF(ISNULL(CountryLanguage.Country), NULL, CountryLanguage.Percentage)
 FROM Country LEFT JOIN CountryLanguage ON
 (CountryLanguage.Country=Country.Code AND Language='English')
@@ -1209,6 +1263,7 @@ Belarus	NULL
 Venezuela	NULL
 Russian Federation	NULL
 Vietnam	NULL
+# Part 2, join_cache_level=4, Query 9
 EXPLAIN
 SELECT Country.Name, Country.Population, City.Name, City.Population 
 FROM Country LEFT JOIN City
@@ -1217,6 +1272,7 @@ WHERE Country.Name LIKE 'C%' AND Country.Population > 10000000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	range	Name	Name	52	NULL	#	Using index condition; Using where; Rowid-ordered scan
 1	SIMPLE	City	hash_range	Population,Country	#hash#Country:Population	3:4	world.Country.Code	#	Using where; Rowid-ordered scan; Using join buffer (flat, BNLH join)
+# Part 2, join_cache_level=4, Query 10
 SELECT Country.Name, Country.Population, City.Name, City.Population 
 FROM Country LEFT JOIN City
 ON City.Country=Country.Code AND City.Population > 5000000
@@ -1236,6 +1292,7 @@ Cuba	11201000	NULL	NULL
 Côte d?Ivoire	14786000	NULL	NULL
 Czech Republic	10278100	NULL	NULL
 CREATE INDEX City_Name ON City(Name);
+# Part 2, join_cache_level=4, City_Name, Query 1
 EXPLAIN
 SELECT Country.Name, Country.Population, City.Name, City.Population
 FROM Country LEFT JOIN City 
@@ -1245,6 +1302,7 @@ WHERE Country.Name LIKE 'C%' AND Country.Population > 10000000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	Country	range	Name	Name	52	NULL	17	Using index condition; Using where; Rowid-ordered scan
 1	SIMPLE	City	hash_index_merge	Population,Country,City_Name	#hash#Country:Population,City_Name	3:4,35	world.Country.Code	96	Using sort_union(Population,City_Name); Using where; Using join buffer (flat, BNLH join)
+# Part 2, join_cache_level=4, City_Name, Query 2
 SELECT Country.Name, Country.Population, City.Name, City.Population
 FROM Country LEFT JOIN City 
 ON City.Country=Country.Code AND
@@ -2104,7 +2162,7 @@ LENGTH(Language) < LENGTH(City.Name) - 2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	City	ALL	Country	NULL	NULL	NULL	4079	Using where
 1	SIMPLE	Country	hash_ALL	PRIMARY	#hash#PRIMARY	3	world.City.Country	239	Using where; Using join buffer (flat, BNLH join)
-1	SIMPLE	CountryLanguage	hash_ALL|filter	PRIMARY,Percentage	#hash#PRIMARY|Percentage	3|4	world.City.Country	984 (19%)	Using where; Using join buffer (flat, BNLH join); Using rowid filter
+1	SIMPLE	CountryLanguage	hash_range	PRIMARY,Percentage	#hash#PRIMARY:Percentage	3:4	world.City.Country	185	Using where; Rowid-ordered scan; Using join buffer (flat, BNLH join)
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
 WHERE City.Country=Country.Code AND
@@ -2208,7 +2266,7 @@ LENGTH(Language) < LENGTH(City.Name) - 2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	City	ALL	Country	NULL	NULL	NULL	4079	Using where
 1	SIMPLE	Country	hash_ALL	PRIMARY	#hash#PRIMARY	3	world.City.Country	239	Using where; Using join buffer (flat, BNLH join)
-1	SIMPLE	CountryLanguage	hash_ALL|filter	PRIMARY,Percentage	#hash#PRIMARY|Percentage	3|4	world.City.Country	984 (19%)	Using where; Using join buffer (incremental, BNLH join); Using rowid filter
+1	SIMPLE	CountryLanguage	hash_range	PRIMARY,Percentage	#hash#PRIMARY:Percentage	3:4	world.City.Country	185	Using where; Rowid-ordered scan; Using join buffer (incremental, BNLH join)
 SELECT City.Name, Country.Name, CountryLanguage.Language
 FROM City,Country,CountryLanguage
 WHERE City.Country=Country.Code AND
@@ -3075,7 +3133,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t8	eq_ref	PRIMARY	PRIMARY	4	test.t7.artistid	1	Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
 1	SIMPLE	t3	ref	t3_metaid,t3_formatid,t3_metaidformatid	t3_metaidformatid	4	test.t9.metaid	1	Using index condition; Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan
 1	SIMPLE	t4	eq_ref	PRIMARY,t4_formatclassid,t4_formats_idx	PRIMARY	4	test.t3.formatid	1	Using where; Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan
-1	SIMPLE	t1	ref	t1_affiliateid,t1_metaid	t1_affiliateid	4	const	2	Using where; Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan
+1	SIMPLE	t1	ALL	t1_affiliateid,t1_metaid	NULL	NULL	NULL	2	Using where; Using join buffer (incremental, BNL join)
 SELECT t1.uniquekey, t1.xml AS affiliateXml,
 t8.name AS artistName, t8.artistid, 
 t11.name AS genreName, t11.genreid, t11.priority AS genrePriority,
@@ -3191,7 +3249,7 @@ Warning	1292	Truncated incorrect join_buffer_size value: '32'
 set join_cache_level=8;
 EXPLAIN SELECT * FROM t1,t2 WHERE t1.a=t2.a AND t1.b >= 30;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	idx	idx	5	NULL	3	Using index condition; Using where; Rowid-ordered scan
+1	SIMPLE	t1	ALL	idx	NULL	NULL	NULL	7	Using where
 1	SIMPLE	t2	ref	idx	idx	5	test.t1.a	2	Using join buffer (flat, BKAH join); Key-ordered Rowid-ordered scan
 SELECT * FROM t1,t2 WHERE t1.a=t2.a AND t1.b >= 30;
 a	b	a	b
@@ -3371,8 +3429,8 @@ set join_cache_level=6;
 set join_buffer_size=1024;
 EXPLAIN SELECT AVG(c) FROM t1,t2 WHERE t1.a=t2.b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2050	Using where
-1	SIMPLE	t2	ref	idx	idx	5	test.t1.a	640	Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
+1	SIMPLE	t2	ALL	idx	NULL	NULL	NULL	1280	Using where
+1	SIMPLE	t1	hash_ALL	NULL	#hash#$hj	5	test.t2.b	2050	Using where; Using join buffer (flat, BNLH join)
 SELECT AVG(c) FROM t1,t2 WHERE t1.a=t2.b;
 AVG(c)
 5.0000
@@ -4969,8 +5027,8 @@ FROM ((t1 LEFT JOIN (t2 JOIN t3 ON t2.a2 = t3.a3) ON t2.b2 = t1.a1)
 LEFT JOIN t4 ON t4.a4 <> 0) LEFT JOIN t5 ON t5.a5 = t2.a2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	
-1	SIMPLE	t2	ALL	PRIMARY	NULL	NULL	NULL	1	Using where
-1	SIMPLE	t3	eq_ref	PRIMARY	PRIMARY	4	test.t2.a2	1	Using index
+1	SIMPLE	t3	index	PRIMARY	PRIMARY	4	NULL	1	Using where; Using index
+1	SIMPLE	t2	eq_ref	PRIMARY	PRIMARY	4	test.t3.a3	1	Using where
 1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	1	Using where
 1	SIMPLE	t5	eq_ref	PRIMARY	PRIMARY	4	test.t2.a2	1	Using where
 SELECT t4.a4, t5.b5 
@@ -5054,13 +5112,15 @@ CREATE TABLE t2 (
 f3 int(11), f2 varchar(1024), f4 varchar(10), PRIMARY KEY (f3)
 );
 INSERT INTO t2 VALUES (6,'RPOYT','y'),(10,'JINQE','m');
+INSERT INTO t2 VALUES (100,'Q','q'),(101,'Q','q'),(102,'Q','q'),(103,'Q','q');
+INSERT INTO t2 VALUES (104,'Q','q'),(105,'Q','q'),(106,'Q','q'),(107,'Q','q');
 SET SESSION join_cache_level = 1;
 SET SESSION optimizer_switch = 'index_condition_pushdown=off';
 EXPLAIN
 SELECT * FROM t1,t2
 WHERE t1.f1 = t2.f4 AND (t1.f3 = 1 AND t2.f3 = 4 OR t1.f3 = 2 AND t2.f3 = 6);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	PRIMARY	PRIMARY	4	NULL	2	Using where; Rowid-ordered scan
+1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	2	Using where
 1	SIMPLE	t2	range	PRIMARY	PRIMARY	4	NULL	2	Using where; Rowid-ordered scan; Using join buffer (flat, BNL join)
 SELECT * FROM t1,t2
 WHERE t1.f1 = t2.f4 AND (t1.f3 = 1 AND t2.f3 = 4 OR t1.f3 = 2 AND t2.f3 = 6);
@@ -5070,7 +5130,7 @@ EXPLAIN
 SELECT * FROM t1,t2
 WHERE t1.f1 = t2.f4 AND (t1.f3 = 1 AND t2.f3 = 4 OR t1.f3 = 2 AND t2.f3 = 6);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	PRIMARY	PRIMARY	4	NULL	2	Using index condition; Rowid-ordered scan
+1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	2	Using where
 1	SIMPLE	t2	range	PRIMARY	PRIMARY	4	NULL	2	Using index condition; Using where; Rowid-ordered scan; Using join buffer (flat, BNL join)
 SELECT * FROM t1,t2
 WHERE t1.f1 = t2.f4 AND (t1.f3 = 1 AND t2.f3 = 4 OR t1.f3 = 2 AND t2.f3 = 6);
@@ -5523,7 +5583,7 @@ and t2.uid=t1.fid;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t3	ref	uid	uid	5	const	4	Using where; Start temporary
 1	PRIMARY	t4	eq_ref	PRIMARY	PRIMARY	4	test.t3.fid	1	Using index
-1	PRIMARY	t1	ALL	uid	NULL	NULL	NULL	11	Using where; End temporary; Using join buffer (flat, BNL join)
+1	PRIMARY	t1	ref	uid	uid	5	test.t3.fid	2	Using where; End temporary; Using join buffer (flat, BKAH join); Rowid-ordered scan
 1	PRIMARY	t2	eq_ref	PRIMARY	PRIMARY	4	test.t1.fid	1	Using join buffer (flat, BKAH join); Rowid-ordered scan
 select name from t2, t1 
 where t1.uid in (select t4.uid from t4, t3 where t3.uid=1 and t4.uid=t3.fid)
@@ -6150,8 +6210,8 @@ a	b	c
 explain select t1.a, t1.b, t1.c from t1,t2
 where t2.a = t1.a and t2.b = t1.b and t2.c=t1.c;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	Using where
-1	SIMPLE	t2	hash_index	PRIMARY	#hash#PRIMARY:PRIMARY	12:12	test.t1.c,test.t1.a,test.t1.b	2	Using index; Using join buffer (flat, BNLH join)
+1	SIMPLE	t2	index	PRIMARY	PRIMARY	12	NULL	2	Using index
+1	SIMPLE	t1	hash_ALL	NULL	#hash#$hj	15	test.t2.a,test.t2.b,test.t2.c	2	Using where; Using join buffer (flat, BNLH join)
 drop table t1,t2;
 set join_cache_level=@save_join_cache_level;
 #
@@ -6198,7 +6258,7 @@ EXPLAIN
       {
         "table": {
           "table_name": "a",
-          "access_type": "range",
+          "access_type": "index",
           "possible_keys": ["PRIMARY"],
           "key": "PRIMARY",
           "key_length": "4",
diff --git a/mysql-test/main/join_cache.test b/mysql-test/main/join_cache.test
index 125ae84c309..c4401997b1d 100644
--- a/mysql-test/main/join_cache.test
+++ b/mysql-test/main/join_cache.test
@@ -6,6 +6,7 @@
 DROP TABLE IF EXISTS t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11;
 DROP DATABASE IF EXISTS world;
 --enable_warnings
+--source include/have_innodb.inc
 
 set @org_optimizer_switch=@@optimizer_switch;
 set @save_join_cache_level=@@join_cache_level;
@@ -53,16 +54,19 @@ set join_cache_level=1;
 
 show variables like 'join_cache_level';
 
+--echo # Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # Query 2
 --sorted_result
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -72,6 +76,7 @@ SELECT City.Name, Country.Name, CountryLanguage.Language
         CountryLanguage.Percentage > 50 AND
         LENGTH(Language) < LENGTH(City.Name) - 2;
 
+--echo # Query 4
 --sorted_result
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -84,16 +89,19 @@ SELECT City.Name, Country.Name, CountryLanguage.Language
 set join_cache_level=2;
 show variables like 'join_cache_level';
 
+--echo # join_cache_level 2, Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # join_cache_level 2, Query 2
 --sorted_result
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # join_cache_level 2, Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -103,6 +111,7 @@ SELECT City.Name, Country.Name, CountryLanguage.Language
         CountryLanguage.Percentage > 50 AND
         LENGTH(Language) < LENGTH(City.Name) - 2;
 
+--echo # join_cache_level 2, Query 4
 --sorted_result
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -115,16 +124,19 @@ SELECT City.Name, Country.Name, CountryLanguage.Language
 set join_cache_level=3;
 show variables like 'join_cache_level';
 
+--echo # join_cache_level 3, Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # join_cache_level 3, Query 2
 --sorted_result
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # join_cache_level 3, Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -134,7 +146,7 @@ SELECT City.Name, Country.Name, CountryLanguage.Language
         CountryLanguage.Percentage > 50 AND
         LENGTH(Language) < LENGTH(City.Name) - 2;
 
-
+--echo # join_cache_level 3, Query 4
 --sorted_result
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -148,16 +160,19 @@ SELECT City.Name, Country.Name, CountryLanguage.Language
 set join_cache_level=4;
 show variables like 'join_cache_level';
 
+--echo # join_cache_level 4, Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # join_cache_level 4, Query 2
 --sorted_result
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # join_cache_level 4, Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -167,6 +182,7 @@ SELECT City.Name, Country.Name, CountryLanguage.Language
         CountryLanguage.Percentage > 50 AND
         LENGTH(Language) < LENGTH(City.Name) - 2;
 
+--echo # join_cache_level 4, Query 4
 --sorted_result
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -177,11 +193,13 @@ SELECT City.Name, Country.Name, CountryLanguage.Language
         LENGTH(Language) < LENGTH(City.Name) - 2;
 
 
+--echo # join_cache_level 4, Query 5
 SELECT Country.Name, Country.Population, City.Name, City.Population 
   FROM Country LEFT JOIN City
        ON City.Country=Country.Code AND City.Population > 5000000
    WHERE Country.Name LIKE 'C%' AND Country.Population > 10000000;
 
+--echo # join_cache_level 4, Query 6
 SELECT Country.Name, Country.Population, City.Name, City.Population
   FROM Country LEFT JOIN City 
        ON City.Country=Country.Code AND
@@ -195,17 +213,20 @@ CREATE INDEX City_Name ON City(Name);
 ANALYZE TABLE City;
 --enable_result_log
 
+--echo # After Analyze, Query 1
 EXPLAIN
 SELECT Country.Name, Country.Population, City.Name, City.Population 
   FROM Country LEFT JOIN City
        ON City.Country=Country.Code AND City.Population > 5000000
    WHERE Country.Name LIKE 'C%' AND Country.Population > 10000000;
 
+--echo # After Analyze, Query 2
 SELECT Country.Name, Country.Population, City.Name, City.Population 
   FROM Country LEFT JOIN City
        ON City.Country=Country.Code AND City.Population > 5000000
    WHERE Country.Name LIKE 'C%' AND Country.Population > 10000000;
 
+--echo # After Analyze, Query 3
 EXPLAIN
 SELECT Country.Name, Country.Population, City.Name, City.Population
   FROM Country LEFT JOIN City 
@@ -213,6 +234,7 @@ SELECT Country.Name, Country.Population, City.Name, City.Population
           (City.Population > 5000000 OR City.Name LIKE 'Za%')
   WHERE Country.Name LIKE 'C%' AND Country.Population > 10000000;
 
+--echo # After Analyze, Query 4
 SELECT Country.Name, Country.Population, City.Name, City.Population
   FROM Country LEFT JOIN City 
        ON City.Country=Country.Code AND
@@ -229,16 +251,19 @@ show variables like 'join_buffer_size';
 
 show variables like 'join_cache_level';
 
+--echo # join_cache_level 1, Join_buffer_size, Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # join_cache_level 1, Join_buffer_size, Query 2
 --sorted_result
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # join_cache_level 1, Join_buffer_size, Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -248,6 +273,7 @@ SELECT City.Name, Country.Name, CountryLanguage.Language
         CountryLanguage.Percentage > 50 AND
         LENGTH(Language) < LENGTH(City.Name) - 2;
 
+--echo # join_cache_level 1, Join_buffer_size, Query 4
 --sorted_result
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -260,16 +286,19 @@ SELECT City.Name, Country.Name, CountryLanguage.Language
 set join_cache_level=2;
 show variables like 'join_cache_level';
 
+--echo # join_cache_level 2, Join_buffer_size, Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # join_cache_level 2, Join_buffer_size, Query 2
 --sorted_result
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # join_cache_level 2, Join_buffer_size, Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -279,6 +308,7 @@ SELECT City.Name, Country.Name, CountryLanguage.Language
         CountryLanguage.Percentage > 50 AND
         LENGTH(Language) < LENGTH(City.Name) - 2;
 
+--echo # join_cache_level 2, Join_buffer_size, Query 4
 --sorted_result
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -291,16 +321,19 @@ SELECT City.Name, Country.Name, CountryLanguage.Language
 set join_cache_level=3;
 show variables like 'join_cache_level';
 
+--echo # join_cache_level 3, Join_buffer_size, Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # join_cache_level 3, Join_buffer_size, Query 2
 --sorted_result
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # join_cache_level 3, Join_buffer_size, Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -310,6 +343,7 @@ SELECT City.Name, Country.Name, CountryLanguage.Language
         CountryLanguage.Percentage > 50 AND
         LENGTH(Language) < LENGTH(City.Name) - 2;
 
+--echo # join_cache_level 3, Join_buffer_size, Query 4
 --sorted_result
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -322,16 +356,19 @@ SELECT City.Name, Country.Name, CountryLanguage.Language
 set join_cache_level=4;
 show variables like 'join_cache_level';
 
+--echo # join_cache_level 4, Join_buffer_size, Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # join_cache_level 4, Join_buffer_size, Query 2
 --sorted_result
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # join_cache_level 4, Join_buffer_size, Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -341,6 +378,7 @@ SELECT City.Name, Country.Name, CountryLanguage.Language
         CountryLanguage.Percentage > 50 AND
         LENGTH(Language) < LENGTH(City.Name) - 2;
 
+--echo # join_cache_level 4, Join_buffer_size, Query 4
 --sorted_result
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -374,16 +412,19 @@ show variables like 'join_buffer_size';
 set join_cache_level=3;
 show variables like 'join_cache_level';
 
+--echo # Part 2, join_cache_level=3, Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # Part 2, join_cache_level=3, Query 2
 --sorted_result
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # Part 2, join_cache_level=3, Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -393,6 +434,7 @@ SELECT City.Name, Country.Name, CountryLanguage.Language
         CountryLanguage.Percentage > 50 AND
         LENGTH(Language) < LENGTH(City.Name) - 2;
 
+--echo # Part 2, join_cache_level=3, Query 4
 --sorted_result
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -402,15 +444,18 @@ SELECT City.Name, Country.Name, CountryLanguage.Language
         CountryLanguage.Percentage > 50 AND
         LENGTH(Language) < LENGTH(City.Name) - 2;
 
+--echo # Part 2, join_cache_level=3, Query 5
 EXPLAIN
 SELECT Name FROM City
   WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND
         City.Population > 100000;
 
+--echo # Part 2, join_cache_level=3, Query 6
 SELECT Name FROM City
   WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND
         City.Population > 100000;
 
+--echo # Part 2, join_cache_level=3, Query 7
 #enable after fix MDEV-27871
 --disable_view_protocol
 
@@ -421,6 +466,7 @@ SELECT Country.Name, IF(ISNULL(CountryLanguage.Country), NULL, CountryLanguage.P
   WHERE 
        Country.Population > 10000000;
 
+--echo # Part 2, join_cache_level=3, Query 8
 SELECT Country.Name, IF(ISNULL(CountryLanguage.Country), NULL, CountryLanguage.Percentage)
   FROM Country LEFT JOIN CountryLanguage ON
        (CountryLanguage.Country=Country.Code AND Language='English')
@@ -433,16 +479,19 @@ show variables like 'join_buffer_size';
 set join_cache_level=4;
 show variables like 'join_cache_level';
 
+--echo # Part 2, join_cache_level=4, Query 1
 EXPLAIN
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # Part 2, join_cache_level=4, Query 2
 --sorted_result
 SELECT City.Name, Country.Name FROM City,Country
   WHERE City.Country=Country.Code AND 
         Country.Name LIKE 'L%' AND City.Population > 100000;
 
+--echo # Part 2, join_cache_level=4, Query 3
 EXPLAIN
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -452,6 +501,7 @@ SELECT City.Name, Country.Name, CountryLanguage.Language
         CountryLanguage.Percentage > 50 AND
         LENGTH(Language) < LENGTH(City.Name) - 2;
 
+--echo # Part 2, join_cache_level=4, Query 4
 --sorted_result
 SELECT City.Name, Country.Name, CountryLanguage.Language
   FROM City,Country,CountryLanguage
@@ -461,15 +511,18 @@ SELECT City.Name, Country.Name, CountryLanguage.Language
         CountryLanguage.Percentage > 50 AND
         LENGTH(Language) < LENGTH(City.Name) - 2;
 
+--echo # Part 2, join_cache_level=4, Query 5
 EXPLAIN
 SELECT Name FROM City
   WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND
         City.Population > 100000;
 
+--echo # Part 2, join_cache_level=4, Query 6
 SELECT Name FROM City
   WHERE City.Country IN (SELECT Code FROM Country WHERE Country.Name LIKE 'L%') AND
         City.Population > 100000;
 
+--echo # Part 2, join_cache_level=4, Query 7
 #enable after fix MDEV-27871
 --disable_view_protocol
 
@@ -480,6 +533,7 @@ SELECT Country.Name, IF(ISNULL(CountryLanguage.Country), NULL, CountryLanguage.P
   WHERE 
        Country.Population > 10000000;
 
+--echo # Part 2, join_cache_level=4, Query 8
 SELECT Country.Name, IF(ISNULL(CountryLanguage.Country), NULL, CountryLanguage.Percentage)
   FROM Country LEFT JOIN CountryLanguage ON
        (CountryLanguage.Country=Country.Code AND Language='English')
@@ -487,7 +541,7 @@ SELECT Country.Name, IF(ISNULL(CountryLanguage.Country), NULL, CountryLanguage.P
        Country.Population > 10000000;
 
 --enable_view_protocol
-
+--echo # Part 2, join_cache_level=4, Query 9
 --replace_column 9 #
 EXPLAIN
 SELECT Country.Name, Country.Population, City.Name, City.Population 
@@ -495,6 +549,7 @@ SELECT Country.Name, Country.Population, City.Name, City.Population
        ON City.Country=Country.Code AND City.Population > 5000000
    WHERE Country.Name LIKE 'C%' AND Country.Population > 10000000;
 
+--echo # Part 2, join_cache_level=4, Query 10
 SELECT Country.Name, Country.Population, City.Name, City.Population 
   FROM Country LEFT JOIN City
        ON City.Country=Country.Code AND City.Population > 5000000
@@ -502,6 +557,7 @@ SELECT Country.Name, Country.Population, City.Name, City.Population
 
 CREATE INDEX City_Name ON City(Name);
 
+--echo # Part 2, join_cache_level=4, City_Name, Query 1
 EXPLAIN
 SELECT Country.Name, Country.Population, City.Name, City.Population
   FROM Country LEFT JOIN City 
@@ -509,6 +565,7 @@ SELECT Country.Name, Country.Population, City.Name, City.Population
           (City.Population > 5000000 OR City.Name LIKE 'Za%')
   WHERE Country.Name LIKE 'C%' AND Country.Population > 10000000;
 
+--echo # Part 2, join_cache_level=4, City_Name, Query 2
 SELECT Country.Name, Country.Population, City.Name, City.Population
   FROM Country LEFT JOIN City 
        ON City.Country=Country.Code AND
@@ -3206,6 +3263,8 @@ CREATE TABLE t2 (
  f3 int(11), f2 varchar(1024), f4 varchar(10), PRIMARY KEY (f3)
 );
 INSERT INTO t2 VALUES (6,'RPOYT','y'),(10,'JINQE','m');
+INSERT INTO t2 VALUES (100,'Q','q'),(101,'Q','q'),(102,'Q','q'),(103,'Q','q');
+INSERT INTO t2 VALUES (104,'Q','q'),(105,'Q','q'),(106,'Q','q'),(107,'Q','q');
 
 SET SESSION join_cache_level = 1;
 
@@ -3808,8 +3867,6 @@ drop table t0,t1,t2;
 --echo #            of LEFT JOIN operations when using join buffer
 --echo #
 
---source include/have_innodb.inc
-
 CREATE TABLE t1 (
   id int(11) NOT NULL AUTO_INCREMENT,
   col1 varchar(255) NOT NULL DEFAULT '',
diff --git a/mysql-test/main/join_nested.result b/mysql-test/main/join_nested.result
index 741c3e4038e..1f8ffccf16b 100644
--- a/mysql-test/main/join_nested.result
+++ b/mysql-test/main/join_nested.result
@@ -695,21 +695,21 @@ t0.b=t1.b AND
 (t9.a=1);
 a	b	a	b	a	b	a	b	a	b	a	b	a	b	a	b	a	b	a	b
 1	2	2	2	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	1	1
-1	2	3	2	4	2	1	2	3	2	3	1	6	2	1	1	NULL	NULL	1	1
-1	2	3	2	4	2	1	2	3	2	3	3	NULL	NULL	NULL	NULL	NULL	NULL	1	1
-1	2	3	2	4	2	1	2	4	2	3	1	6	2	1	1	NULL	NULL	1	1
-1	2	3	2	4	2	1	2	4	2	3	3	NULL	NULL	NULL	NULL	NULL	NULL	1	1
-1	2	3	2	5	3	NULL	NULL	NULL	NULL	3	1	6	2	1	1	NULL	NULL	1	1
-1	2	3	2	5	3	NULL	NULL	NULL	NULL	3	3	NULL	NULL	NULL	NULL	NULL	NULL	1	1
 1	2	2	2	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	1	2
-1	2	3	2	4	2	1	2	3	2	3	1	6	2	1	1	NULL	NULL	1	2
 1	2	3	2	4	2	1	2	3	2	2	2	6	2	2	2	0	2	1	2
+1	2	3	2	4	2	1	2	3	2	3	1	6	2	1	1	NULL	NULL	1	1
+1	2	3	2	4	2	1	2	3	2	3	1	6	2	1	1	NULL	NULL	1	2
+1	2	3	2	4	2	1	2	3	2	3	3	NULL	NULL	NULL	NULL	NULL	NULL	1	1
 1	2	3	2	4	2	1	2	3	2	3	3	NULL	NULL	NULL	NULL	NULL	NULL	1	2
-1	2	3	2	4	2	1	2	4	2	3	1	6	2	1	1	NULL	NULL	1	2
 1	2	3	2	4	2	1	2	4	2	2	2	6	2	2	2	0	2	1	2
+1	2	3	2	4	2	1	2	4	2	3	1	6	2	1	1	NULL	NULL	1	1
+1	2	3	2	4	2	1	2	4	2	3	1	6	2	1	1	NULL	NULL	1	2
+1	2	3	2	4	2	1	2	4	2	3	3	NULL	NULL	NULL	NULL	NULL	NULL	1	1
 1	2	3	2	4	2	1	2	4	2	3	3	NULL	NULL	NULL	NULL	NULL	NULL	1	2
-1	2	3	2	5	3	NULL	NULL	NULL	NULL	3	1	6	2	1	1	NULL	NULL	1	2
 1	2	3	2	5	3	NULL	NULL	NULL	NULL	2	2	6	2	2	2	0	2	1	2
+1	2	3	2	5	3	NULL	NULL	NULL	NULL	3	1	6	2	1	1	NULL	NULL	1	1
+1	2	3	2	5	3	NULL	NULL	NULL	NULL	3	1	6	2	1	1	NULL	NULL	1	2
+1	2	3	2	5	3	NULL	NULL	NULL	NULL	3	3	NULL	NULL	NULL	NULL	NULL	NULL	1	1
 1	2	3	2	5	3	NULL	NULL	NULL	NULL	3	3	NULL	NULL	NULL	NULL	NULL	NULL	1	2
 SELECT t1.a,t1.b
 FROM t1;
@@ -1062,9 +1062,9 @@ t0.b=t1.b AND
 (t8.b=t9.b OR t8.c IS NULL) AND
 (t9.a=1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t0	ref	idx_a	idx_a	5	const	2	100.00	
+1	SIMPLE	t0	ALL	idx_a	NULL	NULL	NULL	3	66.67	Using where
+1	SIMPLE	t1	ref	idx_b	idx_b	5	test.t0.b	2	100.00	
 1	SIMPLE	t9	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
-1	SIMPLE	t1	ALL	idx_b	NULL	NULL	NULL	7	75.00	Using where; Using join buffer (flat, BNL join)
 1	SIMPLE	t5	ALL	idx_b	NULL	NULL	NULL	7	100.00	Using where
 1	SIMPLE	t7	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
@@ -1743,10 +1743,10 @@ LEFT JOIN
 ON t4.carrier = t1.carrier;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	index	package_id	package_id	5	NULL	45	Using where; Using index
+1	SIMPLE	t3	ref	package_id	package_id	5	test.t2.package_id	1	Using index
 1	SIMPLE	t1	eq_ref	PRIMARY	PRIMARY	4	test.t2.package_id	1	
 1	SIMPLE	t4	eq_ref	PRIMARY,id	PRIMARY	2	test.t1.carrier	1	Using where
 1	SIMPLE	t5	ref	carrier_id	carrier_id	5	test.t4.id	22	Using index
-1	SIMPLE	t3	ref	package_id	package_id	5	test.t2.package_id	1	Using index
 SELECT COUNT(*) 
 FROM ((t2 JOIN t1 ON t2.package_id = t1.id) 
 JOIN t3 ON t3.package_id = t1.id)
diff --git a/mysql-test/main/join_nested.test b/mysql-test/main/join_nested.test
index ed1fe4c9f7e..ee89c91e734 100644
--- a/mysql-test/main/join_nested.test
+++ b/mysql-test/main/join_nested.test
@@ -364,6 +364,7 @@ SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
 SELECT t9.a,t9.b
   FROM t9;
 
+--sorted_result
 SELECT t0.a,t0.b,t1.a,t1.b,t2.a,t2.b,t3.a,t3.b,t4.a,t4.b,
        t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b,t9.a,t9.b
   FROM t0,t1
diff --git a/mysql-test/main/join_nested_jcl6.result b/mysql-test/main/join_nested_jcl6.result
index 57bd6298b3b..c5386983ceb 100644
--- a/mysql-test/main/join_nested_jcl6.result
+++ b/mysql-test/main/join_nested_jcl6.result
@@ -652,6 +652,7 @@ t0.b=t1.b AND
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t0	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
 1	SIMPLE	t1	hash_ALL	NULL	#hash#$hj	5	test.t0.b	3	100.00	Using where; Using join buffer (flat, BNLH join)
+1	SIMPLE	t9	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
 1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (incremental, BNL join)
 1	SIMPLE	t4	hash_ALL	NULL	#hash#$hj	5	test.t2.b	2	100.00	Using where; Using join buffer (incremental, BNLH join)
@@ -659,9 +660,8 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t7	hash_ALL	NULL	#hash#$hj	5	test.t5.b	2	100.00	Using where; Using join buffer (incremental, BNLH join)
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
 1	SIMPLE	t8	hash_ALL	NULL	#hash#$hj	5	test.t5.b	2	100.00	Using where; Using join buffer (incremental, BNLH join)
-1	SIMPLE	t9	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
 Warnings:
-Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(`test`.`t3`.`a` = 1 and `test`.`t4`.`b` = `test`.`t2`.`b` and `test`.`t2`.`b` is not null) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(`test`.`t8`.`b` = `test`.`t5`.`b` and `test`.`t6`.`b` < 10 and `test`.`t5`.`b` is not null)) on(`test`.`t7`.`b` = `test`.`t5`.`b` and `test`.`t6`.`b` >= 2 and `test`.`t5`.`b` is not null)) on((`test`.`t3`.`b` = 2 or `test`.`t3`.`c` is null) and (`test`.`t6`.`b` = 2 or `test`.`t6`.`c` is null) and (`test`.`t5`.`b` = `test`.`t0`.`b` or `test`.`t3`.`c` is null or `test`.`t6`.`c` is null or `test`.`t8`.`c` is null) and `test`.`t1`.`a` <> 2) join `test`.`t9` where `test`.`t0`.`a` = 1 and `test`.`t1`.`b` = `test`.`t0`.`b` and `test`.`t9`.`a` = 1 and (`test`.`t2`.`a` >= 4 or `test`.`t2`.`c` is null) and (`test`.`t3`.`a` < 5 or `test`.`t3`.`c` is null) and (`test`.`t4`.`b` = `test`.`t3`.`b` or `test`.`t3`.`c` is null or `test`.`t4`.`c` is null) and (`test`.`t5`.`a` >= 2 or `test`.`t5`.`c` is null) and (`test`.`t6`.`a` >= 4 or `test`.`t6`.`c` is null) and (`test`.`t7`.`a` <= 2 or `test`.`t7`.`c` is null) and (`test`.`t8`.`a` < 1 or `test`.`t8`.`c` is null) and (`test`.`t9`.`b` = `test`.`t8`.`b` or `test`.`t8`.`c` is null)
+Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(`test`.`t3`.`a` = 1 and `test`.`t4`.`b` = `test`.`t2`.`b` and `test`.`t2`.`b` is not null) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(`test`.`t8`.`b` = `test`.`t5`.`b` and `test`.`t6`.`b` < 10 and `test`.`t5`.`b` is not null)) on(`test`.`t7`.`b` = `test`.`t5`.`b` and `test`.`t6`.`b` >= 2 and `test`.`t5`.`b` is not null)) on((`test`.`t3`.`b` = 2 or `test`.`t3`.`c` is null) and (`test`.`t6`.`b` = 2 or `test`.`t6`.`c` is null) and (`test`.`t5`.`b` = `test`.`t0`.`b` or `test`.`t3`.`c` is null or `test`.`t6`.`c` is null or `test`.`t8`.`c` is null) and `test`.`t1`.`a` <> 2) join `test`.`t9` where `test`.`t0`.`a` = 1 and `test`.`t1`.`b` = `test`.`t0`.`b` and `test`.`t9`.`a` = 1 and (`test`.`t2`.`a` >= 4 or `test`.`t2`.`c` is null) and (`test`.`t3`.`a` < 5 or `test`.`t3`.`c` is null) and (`test`.`t4`.`b` = `test`.`t3`.`b` or `test`.`t3`.`c` is null or `test`.`t4`.`c` is null) and (`test`.`t5`.`a` >= 2 or `test`.`t5`.`c` is null) and (`test`.`t6`.`a` >= 4 or `test`.`t6`.`c` is null) and (`test`.`t7`.`a` <= 2 or `test`.`t7`.`c` is null) and (`test`.`t8`.`a` < 1 or `test`.`t8`.`c` is null) and (`test`.`t8`.`b` = `test`.`t9`.`b` or `test`.`t8`.`c` is null)
 SELECT t9.a,t9.b
 FROM t9;
 a	b
@@ -703,23 +703,23 @@ t0.b=t1.b AND
 (t8.b=t9.b OR t8.c IS NULL) AND
 (t9.a=1);
 a	b	a	b	a	b	a	b	a	b	a	b	a	b	a	b	a	b	a	b
-1	2	3	2	4	2	1	2	3	2	3	1	6	2	1	1	NULL	NULL	1	1
-1	2	3	2	4	2	1	2	4	2	3	1	6	2	1	1	NULL	NULL	1	1
+1	2	2	2	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	1	1
+1	2	2	2	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	1	2
 1	2	3	2	4	2	1	2	3	2	2	2	6	2	2	2	0	2	1	2
-1	2	3	2	4	2	1	2	4	2	2	2	6	2	2	2	0	2	1	2
+1	2	3	2	4	2	1	2	3	2	3	1	6	2	1	1	NULL	NULL	1	1
 1	2	3	2	4	2	1	2	3	2	3	1	6	2	1	1	NULL	NULL	1	2
-1	2	3	2	4	2	1	2	4	2	3	1	6	2	1	1	NULL	NULL	1	2
 1	2	3	2	4	2	1	2	3	2	3	3	NULL	NULL	NULL	NULL	NULL	NULL	1	1
-1	2	3	2	4	2	1	2	4	2	3	3	NULL	NULL	NULL	NULL	NULL	NULL	1	1
 1	2	3	2	4	2	1	2	3	2	3	3	NULL	NULL	NULL	NULL	NULL	NULL	1	2
+1	2	3	2	4	2	1	2	4	2	2	2	6	2	2	2	0	2	1	2
+1	2	3	2	4	2	1	2	4	2	3	1	6	2	1	1	NULL	NULL	1	1
+1	2	3	2	4	2	1	2	4	2	3	1	6	2	1	1	NULL	NULL	1	2
+1	2	3	2	4	2	1	2	4	2	3	3	NULL	NULL	NULL	NULL	NULL	NULL	1	1
 1	2	3	2	4	2	1	2	4	2	3	3	NULL	NULL	NULL	NULL	NULL	NULL	1	2
-1	2	3	2	5	3	NULL	NULL	NULL	NULL	3	1	6	2	1	1	NULL	NULL	1	1
 1	2	3	2	5	3	NULL	NULL	NULL	NULL	2	2	6	2	2	2	0	2	1	2
+1	2	3	2	5	3	NULL	NULL	NULL	NULL	3	1	6	2	1	1	NULL	NULL	1	1
 1	2	3	2	5	3	NULL	NULL	NULL	NULL	3	1	6	2	1	1	NULL	NULL	1	2
 1	2	3	2	5	3	NULL	NULL	NULL	NULL	3	3	NULL	NULL	NULL	NULL	NULL	NULL	1	1
 1	2	3	2	5	3	NULL	NULL	NULL	NULL	3	3	NULL	NULL	NULL	NULL	NULL	NULL	1	2
-1	2	2	2	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	1	1
-1	2	2	2	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	1	2
 SELECT t1.a,t1.b
 FROM t1;
 a	b
@@ -920,6 +920,7 @@ t0.b=t1.b AND
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t0	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
 1	SIMPLE	t1	hash_ALL	NULL	#hash#$hj	5	test.t0.b	3	100.00	Using where; Using join buffer (flat, BNLH join)
+1	SIMPLE	t9	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
 1	SIMPLE	t5	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
 1	SIMPLE	t7	hash_ALL	NULL	#hash#$hj	5	test.t5.b	2	100.00	Using where; Using join buffer (incremental, BNLH join)
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
@@ -927,9 +928,8 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	8	100.00	Using where; Using join buffer (incremental, BNL join)
 1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (incremental, BNL join)
 1	SIMPLE	t4	hash_ALL	NULL	#hash#$hj	5	test.t2.b	2	100.00	Using where; Using join buffer (incremental, BNLH join)
-1	SIMPLE	t9	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
 Warnings:
-Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(`test`.`t3`.`a` = 1 and `test`.`t4`.`b` = `test`.`t2`.`b` and `test`.`t2`.`a` > 0 and `test`.`t2`.`b` is not null) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(`test`.`t8`.`b` = `test`.`t5`.`b` and `test`.`t6`.`b` < 10 and `test`.`t5`.`b` is not null)) on(`test`.`t7`.`b` = `test`.`t5`.`b` and `test`.`t6`.`b` >= 2 and `test`.`t5`.`b` is not null)) on((`test`.`t3`.`b` = 2 or `test`.`t3`.`c` is null) and (`test`.`t6`.`b` = 2 or `test`.`t6`.`c` is null) and (`test`.`t5`.`b` = `test`.`t0`.`b` or `test`.`t3`.`c` is null or `test`.`t6`.`c` is null or `test`.`t8`.`c` is null) and `test`.`t1`.`a` <> 2) join `test`.`t9` where `test`.`t0`.`a` = 1 and `test`.`t1`.`b` = `test`.`t0`.`b` and `test`.`t9`.`a` = 1 and (`test`.`t2`.`a` >= 4 or `test`.`t2`.`c` is null) and (`test`.`t3`.`a` < 5 or `test`.`t3`.`c` is null) and (`test`.`t4`.`b` = `test`.`t3`.`b` or `test`.`t3`.`c` is null or `test`.`t4`.`c` is null) and (`test`.`t5`.`a` >= 2 or `test`.`t5`.`c` is null) and (`test`.`t6`.`a` >= 4 or `test`.`t6`.`c` is null) and (`test`.`t7`.`a` <= 2 or `test`.`t7`.`c` is null) and (`test`.`t8`.`a` < 1 or `test`.`t8`.`c` is null) and (`test`.`t9`.`b` = `test`.`t8`.`b` or `test`.`t8`.`c` is null)
+Note	1003	select `test`.`t0`.`a` AS `a`,`test`.`t0`.`b` AS `b`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`a` AS `a`,`test`.`t3`.`b` AS `b`,`test`.`t4`.`a` AS `a`,`test`.`t4`.`b` AS `b`,`test`.`t5`.`a` AS `a`,`test`.`t5`.`b` AS `b`,`test`.`t6`.`a` AS `a`,`test`.`t6`.`b` AS `b`,`test`.`t7`.`a` AS `a`,`test`.`t7`.`b` AS `b`,`test`.`t8`.`a` AS `a`,`test`.`t8`.`b` AS `b`,`test`.`t9`.`a` AS `a`,`test`.`t9`.`b` AS `b` from `test`.`t0` join `test`.`t1` left join (`test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(`test`.`t3`.`a` = 1 and `test`.`t4`.`b` = `test`.`t2`.`b` and `test`.`t2`.`a` > 0 and `test`.`t2`.`b` is not null) join `test`.`t5` left join (`test`.`t6` join `test`.`t7` left join `test`.`t8` on(`test`.`t8`.`b` = `test`.`t5`.`b` and `test`.`t6`.`b` < 10 and `test`.`t5`.`b` is not null)) on(`test`.`t7`.`b` = `test`.`t5`.`b` and `test`.`t6`.`b` >= 2 and `test`.`t5`.`b` is not null)) on((`test`.`t3`.`b` = 2 or `test`.`t3`.`c` is null) and (`test`.`t6`.`b` = 2 or `test`.`t6`.`c` is null) and (`test`.`t5`.`b` = `test`.`t0`.`b` or `test`.`t3`.`c` is null or `test`.`t6`.`c` is null or `test`.`t8`.`c` is null) and `test`.`t1`.`a` <> 2) join `test`.`t9` where `test`.`t0`.`a` = 1 and `test`.`t1`.`b` = `test`.`t0`.`b` and `test`.`t9`.`a` = 1 and (`test`.`t2`.`a` >= 4 or `test`.`t2`.`c` is null) and (`test`.`t3`.`a` < 5 or `test`.`t3`.`c` is null) and (`test`.`t4`.`b` = `test`.`t3`.`b` or `test`.`t3`.`c` is null or `test`.`t4`.`c` is null) and (`test`.`t5`.`a` >= 2 or `test`.`t5`.`c` is null) and (`test`.`t6`.`a` >= 4 or `test`.`t6`.`c` is null) and (`test`.`t7`.`a` <= 2 or `test`.`t7`.`c` is null) and (`test`.`t8`.`a` < 1 or `test`.`t8`.`c` is null) and (`test`.`t8`.`b` = `test`.`t9`.`b` or `test`.`t8`.`c` is null)
 INSERT INTO t4 VALUES (-3,12,0), (-4,13,0), (-1,11,0), (-3,11,0), (-5,15,0);
 INSERT INTO t5 VALUES (-3,11,0), (-2,12,0), (-3,13,0), (-4,12,0);
 CREATE INDEX idx_b ON t4(b);
@@ -1071,9 +1071,9 @@ t0.b=t1.b AND
 (t8.b=t9.b OR t8.c IS NULL) AND
 (t9.a=1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t0	ref	idx_a	idx_a	5	const	2	100.00	
-1	SIMPLE	t9	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
-1	SIMPLE	t1	ALL	idx_b	NULL	NULL	NULL	7	75.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t0	ALL	idx_a	NULL	NULL	NULL	3	66.67	Using where
+1	SIMPLE	t1	ref	idx_b	idx_b	5	test.t0.b	2	100.00	Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
+1	SIMPLE	t9	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
 1	SIMPLE	t5	ALL	idx_b	NULL	NULL	NULL	7	100.00	Using where; Using join buffer (incremental, BNL join)
 1	SIMPLE	t7	hash_ALL	NULL	#hash#$hj	5	test.t5.b	2	100.00	Using where; Using join buffer (incremental, BNLH join)
 1	SIMPLE	t6	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
@@ -1752,10 +1752,10 @@ LEFT JOIN
 ON t4.carrier = t1.carrier;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	index	package_id	package_id	5	NULL	45	Using where; Using index
+1	SIMPLE	t3	ref	package_id	package_id	5	test.t2.package_id	1	Using index
 1	SIMPLE	t1	eq_ref	PRIMARY	PRIMARY	4	test.t2.package_id	1	Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
 1	SIMPLE	t4	eq_ref	PRIMARY,id	PRIMARY	2	test.t1.carrier	1	Using where
 1	SIMPLE	t5	ref	carrier_id	carrier_id	5	test.t4.id	22	Using index
-1	SIMPLE	t3	ref	package_id	package_id	5	test.t2.package_id	1	Using index
 SELECT COUNT(*) 
 FROM ((t2 JOIN t1 ON t2.package_id = t1.id) 
 JOIN t3 ON t3.package_id = t1.id)
@@ -2085,8 +2085,8 @@ ON t6.b >= 2 AND t5.b=t7.b AND
 (t8.a > 0 OR t8.c IS NULL) AND t6.a>0 AND t7.a>0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t5	ALL	NULL	NULL	NULL	NULL	3	
-1	SIMPLE	t7	range	PRIMARY,b_i	PRIMARY	4	NULL	2	Using where; Rowid-ordered scan; Using join buffer (flat, BNL join)
-1	SIMPLE	t6	range|filter	PRIMARY,b_i	PRIMARY|b_i	4|5	NULL	3 (86%)	Using where; Rowid-ordered scan; Using join buffer (incremental, BNL join); Using rowid filter
+1	SIMPLE	t7	ref|filter	PRIMARY,b_i	b_i|PRIMARY	5|4	test.t5.b	2 (29%)	Using where; Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan; Using rowid filter
+1	SIMPLE	t6	ALL	PRIMARY,b_i	NULL	NULL	NULL	7	Using where; Using join buffer (incremental, BNL join)
 1	SIMPLE	t8	ref	b_i	b_i	5	test.t5.b	2	Using where; Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan
 SELECT t5.a,t5.b,t6.a,t6.b,t7.a,t7.b,t8.a,t8.b
 FROM t5 
diff --git a/mysql-test/main/join_outer.result b/mysql-test/main/join_outer.result
index d6ab8c7dc9c..eb5bf0e1700 100644
--- a/mysql-test/main/join_outer.result
+++ b/mysql-test/main/join_outer.result
@@ -2260,7 +2260,7 @@ create table t2 (a int, b int, c int, key(b), key(c));
 insert into t2 select 
 @a:=A.a + 10*B.a+100*C.a,
 IF(@a<900, NULL, @a),
-IF(@a<500, NULL, @a)
+IF(@a<450, NULL, @a)
 from t1 A, t1 B, t1 C;
 delete from t1 where a=0;
 # Check that there are different #rows of NULLs for b and c, both !=10:
@@ -2269,7 +2269,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ref	b	b	5	const	780	Using index condition
 explain select * from t2 force index (c) where c is null;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	ref	c	c	5	const	393	Using index condition
+1	SIMPLE	t2	ref	c	c	5	const	312	Using index condition
 explain select * from t1 left join t2 on t2.b is null;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	9	
@@ -2277,7 +2277,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 explain select * from t1 left join t2 on t2.c is null;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	9	
-1	SIMPLE	t2	ALL	c	NULL	NULL	NULL	1000	Using where
+1	SIMPLE	t2	ref	c	c	5	const	312	Using where
 drop table t1,t2;
 #
 # MDEV-10006: optimizer doesn't convert outer join to inner on views with WHERE clause
diff --git a/mysql-test/main/join_outer.test b/mysql-test/main/join_outer.test
index 5e1e83e4049..ac4207a720a 100644
--- a/mysql-test/main/join_outer.test
+++ b/mysql-test/main/join_outer.test
@@ -1813,7 +1813,7 @@ create table t2 (a int, b int, c int, key(b), key(c));
 insert into t2 select 
   @a:=A.a + 10*B.a+100*C.a,
   IF(@a<900, NULL, @a),
-  IF(@a<500, NULL, @a)
+  IF(@a<450, NULL, @a)
 from t1 A, t1 B, t1 C;
 
 delete from t1 where a=0;
diff --git a/mysql-test/main/join_outer_innodb.result b/mysql-test/main/join_outer_innodb.result
index 809a980576d..5373dbc0bbc 100644
--- a/mysql-test/main/join_outer_innodb.result
+++ b/mysql-test/main/join_outer_innodb.result
@@ -437,6 +437,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	a4,a6,a5,a7	NULL	NULL	NULL	3	Using where
 1	SIMPLE	t2	ref	PRIMARY	PRIMARY	4	test.t1.a1	1	Using index
 1	SIMPLE	t3	eq_ref	PRIMARY	PRIMARY	4	test.t2.b2	1	Using where; Using index
+1	SIMPLE	t10	eq_ref	PRIMARY	PRIMARY	1	test.t1.a6	1	
 1	SIMPLE	t8	eq_ref	PRIMARY	PRIMARY	1	test.t1.a4	1	Using index
 1	SIMPLE	t4	eq_ref	PRIMARY	PRIMARY	4	test.t1.a2	1	Using index
 1	SIMPLE	t5	eq_ref	PRIMARY	PRIMARY	4	test.t4.d1	1	Using where
@@ -453,12 +454,12 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t14	eq_ref	PRIMARY	PRIMARY	2	test.t1.a8	1	Using where
 1	SIMPLE	t15	eq_ref	PRIMARY	PRIMARY	2	test.t1.a9	1	Using where; Using index
 1	SIMPLE	t16	ref	PRIMARY	PRIMARY	2	test.t15.o1	1	Using where
-1	SIMPLE	t10	ALL	PRIMARY	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
 explain select * from v1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	a4,a6,a5,a7	NULL	NULL	NULL	3	Using where
 1	SIMPLE	t2	ref	PRIMARY	PRIMARY	4	test.t1.a1	1	Using index
 1	SIMPLE	t3	eq_ref	PRIMARY	PRIMARY	4	test.t2.b2	1	Using where; Using index
+1	SIMPLE	t10	eq_ref	PRIMARY	PRIMARY	1	test.t1.a6	1	
 1	SIMPLE	t8	eq_ref	PRIMARY	PRIMARY	1	test.t1.a4	1	Using index
 1	SIMPLE	t4	eq_ref	PRIMARY	PRIMARY	4	test.t1.a2	1	Using index
 1	SIMPLE	t5	eq_ref	PRIMARY	PRIMARY	4	test.t4.d1	1	Using where
@@ -475,7 +476,6 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t14	eq_ref	PRIMARY	PRIMARY	2	test.t1.a8	1	Using where
 1	SIMPLE	t15	eq_ref	PRIMARY	PRIMARY	2	test.t1.a9	1	Using where; Using index
 1	SIMPLE	t16	ref	PRIMARY	PRIMARY	2	test.t15.o1	1	Using where
-1	SIMPLE	t10	ALL	PRIMARY	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
 drop view v1;
 drop table t1,t2,t3,t4,t5,t6,t7,t8,t9,t10,t11,t12,t13,t14,t15,t16;
 #
diff --git a/mysql-test/main/join_outer_jcl6.result b/mysql-test/main/join_outer_jcl6.result
index 7f2f6ae96d4..5c88511b020 100644
--- a/mysql-test/main/join_outer_jcl6.result
+++ b/mysql-test/main/join_outer_jcl6.result
@@ -2267,7 +2267,7 @@ create table t2 (a int, b int, c int, key(b), key(c));
 insert into t2 select 
 @a:=A.a + 10*B.a+100*C.a,
 IF(@a<900, NULL, @a),
-IF(@a<500, NULL, @a)
+IF(@a<450, NULL, @a)
 from t1 A, t1 B, t1 C;
 delete from t1 where a=0;
 # Check that there are different #rows of NULLs for b and c, both !=10:
@@ -2276,7 +2276,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ref	b	b	5	const	780	Using index condition
 explain select * from t2 force index (c) where c is null;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	ref	c	c	5	const	393	Using index condition
+1	SIMPLE	t2	ref	c	c	5	const	312	Using index condition
 explain select * from t1 left join t2 on t2.b is null;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	9	
@@ -2284,7 +2284,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 explain select * from t1 left join t2 on t2.c is null;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	9	
-1	SIMPLE	t2	ALL	c	NULL	NULL	NULL	1000	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ref	c	c	5	const	312	Using where; Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
 drop table t1,t2;
 #
 # MDEV-10006: optimizer doesn't convert outer join to inner on views with WHERE clause
diff --git a/mysql-test/main/key.result b/mysql-test/main/key.result
index 091e8e44b82..653e41f8e28 100644
--- a/mysql-test/main/key.result
+++ b/mysql-test/main/key.result
@@ -231,11 +231,14 @@ numeropost
 1
 EXPLAIN SELECT numeropost FROM t1 WHERE numreponse='1';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	const	numreponse	numreponse	4	const	1	Using index
+1	SIMPLE	t1	const	numreponse	numreponse	4	const	1	
 FLUSH TABLES;
 SELECT numeropost FROM t1 WHERE numreponse='1';
 numeropost
 1
+EXPLAIN SELECT numreponse+0 FROM t1 WHERE numreponse='1';
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	const	numreponse	numreponse	4	const	1	Using index
 drop table t1;
 create table t1 (c varchar(30) character set utf8, t text character set utf8, unique (c(2)), unique (t(3))) engine=myisam;
 show create table t1;
@@ -610,7 +613,7 @@ EXPLAIN SELECT 1 FROM t1 AS t1_outer WHERE
 (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) > 12;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
-2	SUBQUERY	t1	range	a	a	5	NULL	5	Using where; Using index
+2	SUBQUERY	t1	range	a	a	5	NULL	2	Using where; Using index for group-by
 SELECT 1 as RES FROM t1 AS t1_outer WHERE 
 (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2) > 12;
 RES
@@ -628,19 +631,19 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	6	Using temporary; Using filesort
 SHOW STATUS LIKE 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	10.412184
+Last_query_cost	8.506592
 EXPLAIN SELECT a, SUM( b ) FROM t1 USE INDEX( a ) GROUP BY a;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	6	Using temporary; Using filesort
 SHOW STATUS LIKE 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	10.412184
+Last_query_cost	8.506592
 EXPLAIN SELECT a, SUM( b ) FROM t1 FORCE INDEX( a ) GROUP BY a;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	index	NULL	a	5	NULL	6	
 SHOW STATUS LIKE 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	15.399000
+Last_query_cost	11.003515
 DROP TABLE t1;
 #
 # MDEV-21480: Unique key using ref access though eq_ref access can be used
diff --git a/mysql-test/main/key.test b/mysql-test/main/key.test
index 29e08b8834a..c891194f1ad 100644
--- a/mysql-test/main/key.test
+++ b/mysql-test/main/key.test
@@ -227,9 +227,12 @@ drop table t1;
 CREATE TABLE t1 (numeropost mediumint(8) unsigned NOT NULL default '0', numreponse int(10) unsigned NOT NULL auto_increment, PRIMARY KEY (numeropost,numreponse), UNIQUE KEY numreponse (numreponse));
 INSERT INTO t1 (numeropost,numreponse) VALUES ('1','1'),('1','2'),('2','3'),('2','4');
 SELECT numeropost FROM t1 WHERE numreponse='1';
+# No 'Using index'
 EXPLAIN SELECT numeropost FROM t1 WHERE numreponse='1';
 FLUSH TABLES;
 SELECT numeropost FROM t1 WHERE numreponse='1';
+# This one will have 'Using index'
+EXPLAIN SELECT numreponse+0 FROM t1 WHERE numreponse='1';
 drop table t1;
 
 #
diff --git a/mysql-test/main/key_cache.result b/mysql-test/main/key_cache.result
index 4a5df2da65d..3edbac8c9ae 100644
--- a/mysql-test/main/key_cache.result
+++ b/mysql-test/main/key_cache.result
@@ -440,25 +440,25 @@ VARIABLE_NAME	VARIABLE_VALUE
 KEY_BLOCKS_NOT_FLUSHED	0
 KEY_BLOCKS_USED	4
 KEY_BLOCKS_WARM	0
-KEY_READ_REQUESTS	22
+KEY_READ_REQUESTS	21
 KEY_READS	0
 KEY_WRITE_REQUESTS	26
 KEY_WRITES	6
 select variable_value into @key_blocks_unused from information_schema.session_status where variable_name = 'Key_blocks_unused';
 select * from information_schema.key_caches where segment_number is null;
 KEY_CACHE_NAME	SEGMENTS	SEGMENT_NUMBER	FULL_SIZE	BLOCK_SIZE	USED_BLOCKS	UNUSED_BLOCKS	DIRTY_BLOCKS	READ_REQUESTS	READS	WRITE_REQUESTS	WRITES
-default	NULL	NULL	2097152	1024	4	#	0	22	0	26	6
+default	NULL	NULL	2097152	1024	4	#	0	21	0	26	6
 small	NULL	NULL	1048576	1024	1	#	0	1	0	2	1
 delete from t2 where a='zzzz';
 select * from information_schema.key_caches where segment_number is null;
 KEY_CACHE_NAME	SEGMENTS	SEGMENT_NUMBER	FULL_SIZE	BLOCK_SIZE	USED_BLOCKS	UNUSED_BLOCKS	DIRTY_BLOCKS	READ_REQUESTS	READS	WRITE_REQUESTS	WRITES
-default	NULL	NULL	2097152	1024	4	#	0	29	0	32	9
+default	NULL	NULL	2097152	1024	4	#	0	28	0	32	9
 small	NULL	NULL	1048576	1024	1	#	0	1	0	2	1
 delete from t1;
 delete from t2;
 select * from information_schema.key_caches where segment_number is null;
 KEY_CACHE_NAME	SEGMENTS	SEGMENT_NUMBER	FULL_SIZE	BLOCK_SIZE	USED_BLOCKS	UNUSED_BLOCKS	DIRTY_BLOCKS	READ_REQUESTS	READS	WRITE_REQUESTS	WRITES
-default	NULL	NULL	2097152	1024	4	#	0	29	0	32	9
+default	NULL	NULL	2097152	1024	4	#	0	28	0	32	9
 small	NULL	NULL	1048576	1024	1	#	0	1	0	2	1
 set global key_cache_segments=2;
 select @@key_cache_segments;
@@ -488,7 +488,7 @@ VARIABLE_NAME	VARIABLE_VALUE
 KEY_BLOCKS_NOT_FLUSHED	0
 KEY_BLOCKS_USED	4
 KEY_BLOCKS_WARM	0
-KEY_READ_REQUESTS	22
+KEY_READ_REQUESTS	21
 KEY_READS	0
 KEY_WRITE_REQUESTS	26
 KEY_WRITES	6
@@ -497,13 +497,13 @@ variable_value < @key_blocks_unused
 1
 select * from information_schema.key_caches where segment_number is null;
 KEY_CACHE_NAME	SEGMENTS	SEGMENT_NUMBER	FULL_SIZE	BLOCK_SIZE	USED_BLOCKS	UNUSED_BLOCKS	DIRTY_BLOCKS	READ_REQUESTS	READS	WRITE_REQUESTS	WRITES
-default	2	NULL	2097152	1024	4	#	0	22	0	26	6
+default	2	NULL	2097152	1024	4	#	0	21	0	26	6
 small	NULL	NULL	1048576	1024	1	#	0	1	0	2	1
 delete from t1;
 delete from t2;
 select * from information_schema.key_caches where segment_number is null;
 KEY_CACHE_NAME	SEGMENTS	SEGMENT_NUMBER	FULL_SIZE	BLOCK_SIZE	USED_BLOCKS	UNUSED_BLOCKS	DIRTY_BLOCKS	READ_REQUESTS	READS	WRITE_REQUESTS	WRITES
-default	2	NULL	2097152	1024	4	#	0	22	0	26	6
+default	2	NULL	2097152	1024	4	#	0	21	0	26	6
 small	NULL	NULL	1048576	1024	1	#	0	1	0	2	1
 set global key_cache_segments=1;
 select @@key_cache_segments;
@@ -533,7 +533,7 @@ VARIABLE_NAME	VARIABLE_VALUE
 KEY_BLOCKS_NOT_FLUSHED	0
 KEY_BLOCKS_USED	4
 KEY_BLOCKS_WARM	0
-KEY_READ_REQUESTS	22
+KEY_READ_REQUESTS	21
 KEY_READS	0
 KEY_WRITE_REQUESTS	26
 KEY_WRITES	6
@@ -542,13 +542,13 @@ variable_value = @key_blocks_unused
 1
 select * from information_schema.key_caches where segment_number is null;
 KEY_CACHE_NAME	SEGMENTS	SEGMENT_NUMBER	FULL_SIZE	BLOCK_SIZE	USED_BLOCKS	UNUSED_BLOCKS	DIRTY_BLOCKS	READ_REQUESTS	READS	WRITE_REQUESTS	WRITES
-default	1	NULL	2097152	1024	4	#	0	22	0	26	6
+default	1	NULL	2097152	1024	4	#	0	21	0	26	6
 small	NULL	NULL	1048576	1024	1	#	0	1	0	2	1
 delete from t1;
 delete from t2;
 select * from information_schema.key_caches where segment_number is null;
 KEY_CACHE_NAME	SEGMENTS	SEGMENT_NUMBER	FULL_SIZE	BLOCK_SIZE	USED_BLOCKS	UNUSED_BLOCKS	DIRTY_BLOCKS	READ_REQUESTS	READS	WRITE_REQUESTS	WRITES
-default	1	NULL	2097152	1024	4	#	0	22	0	26	6
+default	1	NULL	2097152	1024	4	#	0	21	0	26	6
 small	NULL	NULL	1048576	1024	1	#	0	1	0	2	1
 flush tables;
 flush status;
@@ -586,7 +586,7 @@ update t1 set p=3 where p=1;
 update t2 set i=2 where i=1;
 select * from information_schema.key_caches where segment_number is null;
 KEY_CACHE_NAME	SEGMENTS	SEGMENT_NUMBER	FULL_SIZE	BLOCK_SIZE	USED_BLOCKS	UNUSED_BLOCKS	DIRTY_BLOCKS	READ_REQUESTS	READS	WRITE_REQUESTS	WRITES
-default	2	NULL	32768	1024	4	#	0	22	0	26	6
+default	2	NULL	32768	1024	4	#	0	21	0	26	6
 small	NULL	NULL	1048576	1024	1	#	0	0	0	0	0
 insert into t1(a) select a from t1;
 insert into t1(a) select a from t1;
@@ -606,7 +606,7 @@ insert into t2(i,a) select i,a from t2;
 insert into t2(i,a) select i,a from t2;
 select * from information_schema.key_caches where segment_number is null;
 KEY_CACHE_NAME	SEGMENTS	SEGMENT_NUMBER	FULL_SIZE	BLOCK_SIZE	USED_BLOCKS	UNUSED_BLOCKS	DIRTY_BLOCKS	READ_REQUESTS	READS	WRITE_REQUESTS	WRITES
-default	2	NULL	32768	1024	#	#	0	6733	#	3684	103
+default	2	NULL	32768	1024	#	#	0	6732	#	3684	103
 small	NULL	NULL	1048576	1024	#	#	0	0	#	0	0
 select * from t1 where p between 1010 and 1020 ;
 p	a
@@ -625,7 +625,7 @@ p	i	a
 1020	3	zzzz
 select * from information_schema.key_caches where segment_number is null;
 KEY_CACHE_NAME	SEGMENTS	SEGMENT_NUMBER	FULL_SIZE	BLOCK_SIZE	USED_BLOCKS	UNUSED_BLOCKS	DIRTY_BLOCKS	READ_REQUESTS	READS	WRITE_REQUESTS	WRITES
-default	2	NULL	32768	1024	#	#	0	6750	#	3684	103
+default	2	NULL	32768	1024	#	#	0	6749	#	3684	103
 small	NULL	NULL	1048576	1024	#	#	0	0	#	0	0
 flush tables;
 flush status;
@@ -699,7 +699,7 @@ update t2 set p=p+3000, i=2 where a='qqqq';
 select * from information_schema.key_caches where key_cache_name like "key%"
                                                   and segment_number is null;
 KEY_CACHE_NAME	SEGMENTS	SEGMENT_NUMBER	FULL_SIZE	BLOCK_SIZE	USED_BLOCKS	UNUSED_BLOCKS	DIRTY_BLOCKS	READ_REQUESTS	READS	WRITE_REQUESTS	WRITES
-keycache1	7	NULL	262143	2048	25	#	0	2082	25	1071	19
+keycache1	7	NULL	262143	2048	25	#	0	2114	25	1071	19
 set global keycache2.key_buffer_size=1024*1024;
 cache index t2 in keycache2;
 Table	Op	Msg_type	Msg_text
@@ -712,7 +712,7 @@ keycache2	NULL	NULL	1048576	1024	6	#	0	6	6	3	3
 select * from information_schema.key_caches where key_cache_name like "key%" 
 and segment_number is null;
 KEY_CACHE_NAME	SEGMENTS	SEGMENT_NUMBER	FULL_SIZE	BLOCK_SIZE	USED_BLOCKS	UNUSED_BLOCKS	DIRTY_BLOCKS	READ_REQUESTS	READS	WRITE_REQUESTS	WRITES
-keycache1	7	NULL	262143	2048	25	#	0	2082	25	1071	19
+keycache1	7	NULL	262143	2048	25	#	0	2114	25	1071	19
 keycache2	NULL	NULL	1048576	1024	6	#	0	6	6	3	3
 cache index t2 in keycache1;
 Table	Op	Msg_type	Msg_text
@@ -753,7 +753,7 @@ select * from information_schema.key_caches where segment_number is null;
 KEY_CACHE_NAME	SEGMENTS	SEGMENT_NUMBER	FULL_SIZE	BLOCK_SIZE	USED_BLOCKS	UNUSED_BLOCKS	DIRTY_BLOCKS	READ_REQUESTS	READS	WRITE_REQUESTS	WRITES
 default	2	NULL	32768	1024	#	#	0	3172	24	1552	18
 small	NULL	NULL	1048576	1024	#	#	0	0	0	0	0
-keycache1	7	NULL	262143	2048	#	#	0	3229	43	1594	30
+keycache1	7	NULL	262143	2048	#	#	0	3277	43	1594	30
 keycache2	NULL	NULL	1048576	1024	#	#	0	6	6	3	3
 set global keycache1.key_cache_block_size=2*1024;
 insert into t2 values (7000, 3, 'yyyy');
diff --git a/mysql-test/main/limit_rows_examined.result b/mysql-test/main/limit_rows_examined.result
index f0a22b8f3f2..e87dd25cac9 100644
--- a/mysql-test/main/limit_rows_examined.result
+++ b/mysql-test/main/limit_rows_examined.result
@@ -255,7 +255,7 @@ select * from t1i
 where c1 IN (select * from t2i where c2 > ' ')
 LIMIT ROWS EXAMINED 6;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t1i	range	PRIMARY	PRIMARY	2	NULL	4	Using where; Using index
+1	PRIMARY	t1i	index	PRIMARY	PRIMARY	2	NULL	4	Using where; Using index
 1	PRIMARY	t2i	eq_ref	PRIMARY	PRIMARY	2	test.t1i.c1	1	Using index
 select * from t1i
 where c1 IN (select * from t2i where c2 > ' ')
@@ -395,7 +395,7 @@ select * from t1i
 where c1 IN (select * from t2i where c2 > ' ') LIMIT ROWS EXAMINED 17;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1i	index	NULL	PRIMARY	2	NULL	4	Using where; Using index
-2	MATERIALIZED	t2i	range	PRIMARY	PRIMARY	2	NULL	4	Using where; Using index
+2	MATERIALIZED	t2i	index	PRIMARY	PRIMARY	2	NULL	4	Using where; Using index
 select * from t1i
 where c1 IN (select * from t2i where c2 > ' ') LIMIT ROWS EXAMINED 17;
 c1
diff --git a/mysql-test/main/long_unique.result b/mysql-test/main/long_unique.result
index 7f8110a283e..664c9e82ec6 100644
--- a/mysql-test/main/long_unique.result
+++ b/mysql-test/main/long_unique.result
@@ -1195,20 +1195,20 @@ ERROR 42S22: Unknown column 'DB_ROW_HASH_1' in 'IN/ALL/ANY subquery'
 select DB_ROW_HASH_1, DB_ROW_HASH_2 from t1,t2 where DB_ROW_HASH_1 in (select DB_ROW_HASH_1 from t2);
 DB_ROW_HASH_1	DB_ROW_HASH_2
 11	1
-22	2
-33	3
-44	4
 11	1
-22	2
-33	3
-44	4
 11	1
-22	2
-33	3
-44	4
 11	1
 22	2
+22	2
+22	2
+22	2
+33	3
+33	3
 33	3
+33	3
+44	4
+44	4
+44	4
 44	4
 select * from t2 where DB_ROW_HASH_1 in (select DB_ROW_HASH_1 from t1);
 DB_ROW_HASH_1	DB_ROW_HASH_2
diff --git a/mysql-test/main/long_unique.test b/mysql-test/main/long_unique.test
index fa49b6a5ad4..3203675a7ad 100644
--- a/mysql-test/main/long_unique.test
+++ b/mysql-test/main/long_unique.test
@@ -389,6 +389,7 @@ select DB_ROW_HASH_1, DB_ROW_HASH_2 from t1;
 select DB_ROW_HASH_1, DB_ROW_HASH_2 from t1,t2;
 --error ER_BAD_FIELD_ERROR
 select * from t1 where DB_ROW_HASH_1 in (select DB_ROW_HASH_1 from t2);
+--sorted_result
 select DB_ROW_HASH_1, DB_ROW_HASH_2 from t1,t2 where DB_ROW_HASH_1 in (select DB_ROW_HASH_1 from t2);
 select * from t2 where DB_ROW_HASH_1 in (select DB_ROW_HASH_1 from t1);
 --error ER_BAD_FIELD_ERROR
diff --git a/mysql-test/main/multi_update.result b/mysql-test/main/multi_update.result
index 1af632a19c8..674dc79fe12 100644
--- a/mysql-test/main/multi_update.result
+++ b/mysql-test/main/multi_update.result
@@ -1092,8 +1092,8 @@ a	b	c	a	b	c
 set optimizer_switch='firstmatch=off';
 explain update t1, t2 set t2.c=1 where t1.a=t2.a and t1.b in (select b from t3 where t3.c< t2.c) order by t2.c, t1.c limit 10;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	10	Using temporary; Using filesort
-1	PRIMARY	t1	ALL	a	NULL	NULL	NULL	10	Using where
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	10	Using where; Using temporary; Using filesort
+1	PRIMARY	t1	ref	a	a	5	test.t2.a	1	
 1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	10	Using where; Start temporary; End temporary
 update t1, t2 set t2.c=1 where t1.a=t2.a and t1.b in (select b from t3 where t3.c<=t2.c) order by t2.c, t1.c limit 5;
 select * from t2;
diff --git a/mysql-test/main/myisam.result b/mysql-test/main/myisam.result
index 0b0099d7b84..cb163bb29ff 100644
--- a/mysql-test/main/myisam.result
+++ b/mysql-test/main/myisam.result
@@ -640,10 +640,14 @@ create table t1 ( a tinytext, b char(1), index idx (a(1),b) );
 insert into t1 values (null,''), (null,'');
 explain select count(*) from t1 where a is null;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	idx	idx	4	const	2	Using where
+1	SIMPLE	t1	ALL	idx	NULL	NULL	NULL	2	Using where
 select count(*) from t1 where a is null;
 count(*)
 2
+insert into t1 values (1,''), (2,'');
+explain select count(*) from t1 where a is null;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ref	idx	idx	4	const	2	Using where
 drop table t1;
 create table t1 (c1 int, c2 varchar(4) not null default '',
 key(c2(3))) default charset=utf8;
@@ -2532,6 +2536,7 @@ DROP TABLE t1, t2, t3;
 #
 # BUG#51307 - widespread corruption with partitions and insert...select
 #
+call mtr.add_suppression("Enabling keys got errno 12 on test.t1, retrying");
 CREATE TABLE t1(a CHAR(255), KEY(a));
 SELECT * FROM t1, t1 AS a1;
 a	a
diff --git a/mysql-test/main/myisam.test b/mysql-test/main/myisam.test
index ec49e71bc2d..32b74027b14 100644
--- a/mysql-test/main/myisam.test
+++ b/mysql-test/main/myisam.test
@@ -593,6 +593,8 @@ create table t1 ( a tinytext, b char(1), index idx (a(1),b) );
 insert into t1 values (null,''), (null,'');
 explain select count(*) from t1 where a is null;
 select count(*) from t1 where a is null;
+insert into t1 values (1,''), (2,'');
+explain select count(*) from t1 where a is null;
 drop table t1;
 
 #
@@ -1676,6 +1678,9 @@ DROP TABLE t1, t2, t3;
 --echo #
 --echo # BUG#51307 - widespread corruption with partitions and insert...select
 --echo #
+
+call mtr.add_suppression("Enabling keys got errno 12 on test.t1, retrying");
+
 CREATE TABLE t1(a CHAR(255), KEY(a));
 SELECT * FROM t1, t1 AS a1;
 SET myisam_sort_buffer_size=4;
diff --git a/mysql-test/main/myisam_explain_non_select_all.result b/mysql-test/main/myisam_explain_non_select_all.result
index 83e18f3906f..9b98dc77eb7 100644
--- a/mysql-test/main/myisam_explain_non_select_all.result
+++ b/mysql-test/main/myisam_explain_non_select_all.result
@@ -256,9 +256,8 @@ FLUSH STATUS;
 FLUSH TABLES;
 EXPLAIN EXTENDED SELECT * FROM t1            WHERE 1 IN (SELECT 1 FROM t2 WHERE t2.b < 3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; FirstMatch
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
 Warnings:
 Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where `test`.`t2`.`b` < 3
 # Status of EXPLAIN EXTENDED "equivalent" SELECT query execution
@@ -268,8 +267,8 @@ Warnings:
 Warning	1287	'<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead
 # Status of "equivalent" SELECT query execution:
 Variable_name	Value
-Handler_read_key	5
-Handler_read_rnd_next	8
+Handler_read_key	4
+Handler_read_rnd_next	5
 # Status of testing query execution:
 Variable_name	Value
 Handler_read_key	4
@@ -342,16 +341,16 @@ Warning	1287	'<select expression> INTO <destination>;' is deprecated and will be
 EXPLAIN UPDATE        t1, t2 SET a = 10 WHERE a IN (SELECT b FROM t2 WHERE t2.b < 3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	3	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	Using where
 FLUSH STATUS;
 FLUSH TABLES;
 EXPLAIN EXTENDED UPDATE        t1, t2 SET a = 10 WHERE a IN (SELECT b FROM t2 WHERE t2.b < 3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
 # Status of EXPLAIN EXTENDED query
 Variable_name	Value
@@ -361,8 +360,8 @@ FLUSH TABLES;
 EXPLAIN EXTENDED SELECT * FROM t1, t2            WHERE a IN (SELECT b FROM t2 WHERE t2.b < 3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
 Warnings:
 Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t1` semi join (`test`.`t2`) join `test`.`t2` where `test`.`t2`.`b` < 3
@@ -373,12 +372,12 @@ Warnings:
 Warning	1287	'<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead
 # Status of "equivalent" SELECT query execution:
 Variable_name	Value
-Handler_read_key	7
+Handler_read_key	13
 Handler_read_rnd_next	12
 # Status of testing query execution:
 Variable_name	Value
-Handler_read_key	7
-Handler_read_rnd_next	16
+Handler_read_key	9
+Handler_read_rnd_next	20
 Handler_update	2
 
 DROP TABLE t1, t2;
@@ -791,12 +790,12 @@ Warnings:
 Warning	1287	'<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead
 EXPLAIN DELETE   FROM t1 WHERE t1.a > 0 ORDER BY t1.a;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	PRIMARY	PRIMARY	4	NULL	3	Using where
+1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	6	Using where; Using filesort
 FLUSH STATUS;
 FLUSH TABLES;
 EXPLAIN EXTENDED DELETE   FROM t1 WHERE t1.a > 0 ORDER BY t1.a;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	range	PRIMARY	PRIMARY	4	NULL	3	100.00	Using where
+1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	6	100.00	Using where; Using filesort
 # Status of EXPLAIN EXTENDED query
 Variable_name	Value
 Handler_read_key	3
@@ -819,8 +818,11 @@ Handler_read_next	3
 # Status of testing query execution:
 Variable_name	Value
 Handler_delete	3
-Handler_read_key	4
-Handler_read_next	3
+Handler_read_key	3
+Handler_read_rnd	3
+Handler_read_rnd_next	7
+Sort_rows	3
+Sort_scan	1
 
 DROP TABLE t1;
 #17
@@ -1494,12 +1496,12 @@ Warnings:
 Warning	1287	'<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead
 EXPLAIN DELETE   FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	26	Using where; Using filesort
+1	SIMPLE	t2	index	NULL	a	15	NULL	5	Using where
 FLUSH STATUS;
 FLUSH TABLES;
 EXPLAIN EXTENDED DELETE   FROM t2 WHERE b = 10 ORDER BY a, c LIMIT 5;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	26	100.00	Using where; Using filesort
+1	SIMPLE	t2	index	NULL	a	15	NULL	5	100.00	Using where
 # Status of EXPLAIN EXTENDED query
 Variable_name	Value
 Handler_read_key	8
@@ -1523,11 +1525,9 @@ Handler_read_next	26
 # Status of testing query execution:
 Variable_name	Value
 Handler_delete	1
+Handler_read_first	1
 Handler_read_key	8
-Handler_read_rnd	1
-Handler_read_rnd_next	27
-Sort_rows	1
-Sort_scan	1
+Handler_read_next	26
 
 DROP TABLE t1, t2;
 #32
@@ -2009,12 +2009,12 @@ Warnings:
 Warning	1287	'<select expression> INTO <destination>;' is deprecated and will be removed in a future release. Please use 'SELECT <select list> INTO <destination> FROM...' instead
 EXPLAIN UPDATE t2 SET d = 10 WHERE b = 10 ORDER BY a, c LIMIT 5;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	26	Using where; Using filesort
+1	SIMPLE	t2	index	NULL	a	15	NULL	5	Using where; Using buffer
 FLUSH STATUS;
 FLUSH TABLES;
 EXPLAIN EXTENDED UPDATE t2 SET d = 10 WHERE b = 10 ORDER BY a, c LIMIT 5;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	26	100.00	Using where; Using filesort
+1	SIMPLE	t2	index	NULL	a	15	NULL	5	100.00	Using where; Using buffer
 # Status of EXPLAIN EXTENDED query
 Variable_name	Value
 Handler_read_key	8
@@ -2037,13 +2037,11 @@ Handler_read_key	8
 Handler_read_next	26
 # Status of testing query execution:
 Variable_name	Value
+Handler_read_first	1
 Handler_read_key	8
+Handler_read_next	26
 Handler_read_rnd	1
-Handler_read_rnd_next	27
 Handler_update	1
-Sort_priority_queue_sorts	1
-Sort_rows	1
-Sort_scan	1
 
 DROP TABLE t1, t2;
 #42
diff --git a/mysql-test/main/myisam_icp.result b/mysql-test/main/myisam_icp.result
index 2bd9ac9ba95..5dfa61effef 100644
--- a/mysql-test/main/myisam_icp.result
+++ b/mysql-test/main/myisam_icp.result
@@ -407,7 +407,7 @@ WHERE (pk BETWEEN 4 AND 5 OR pk < 2) AND c1 < 240
 ORDER BY c1
 LIMIT 1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range|filter	PRIMARY,k1	PRIMARY|k1	4|5	NULL	3 (50%)	Using index condition; Using where; Rowid-ordered scan; Using filesort; Using rowid filter
+1	SIMPLE	t1	range	PRIMARY,k1	PRIMARY	4	NULL	3	Using index condition; Using where; Rowid-ordered scan; Using filesort
 DROP TABLE t1;
 #
 #
@@ -429,8 +429,8 @@ SELECT * FROM t1
 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON it.i=it.i WHERE it.pk-t1.i<10);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	#	Using where
+2	DEPENDENT SUBQUERY	t2	index	NULL	PRIMARY	4	NULL	#	Using index
 2	DEPENDENT SUBQUERY	it	eq_ref	PRIMARY	PRIMARY	4	func	#	Using index condition
-2	DEPENDENT SUBQUERY	t2	index	NULL	PRIMARY	4	NULL	#	Using index; Using join buffer (flat, BNL join)
 SELECT * FROM t1
 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON it.i=it.i WHERE it.pk-t1.i<10);
 pk	i
@@ -506,7 +506,7 @@ WHERE (t2.pk <= 4 AND t1.pk IN (2,1)) OR
 (t1.pk > 1 AND t2.pk BETWEEN 6 AND 6);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	range	PRIMARY	PRIMARY	4	NULL	1	Using index condition; Rowid-ordered scan
-1	SIMPLE	t2	range	PRIMARY	PRIMARY	4	NULL	2	Using index condition; Using where; Rowid-ordered scan; Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	PRIMARY	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
 SELECT c2 FROM t1 JOIN t2 ON t1.c1 = t2.c1
 WHERE (t2.pk <= 4 AND t1.pk IN (2,1)) OR
 (t1.pk > 1 AND t2.pk BETWEEN 6 AND 6);
@@ -922,7 +922,7 @@ DROP TABLE t1;
 # Bug#870046: ICP for a GROUP BY query
 #
 CREATE TABLE t1 (a int, b varchar(1), c varchar(1), INDEX idx(b));
-INSERT INTO t1 VALUES (2,'x','x'), (5,'x','y');
+INSERT INTO t1 VALUES (2,'x','x'), (5,'x','y'), (6,'a','b'), (7,'a','b');
 SET SESSION optimizer_switch='index_condition_pushdown=off';
 EXPLAIN
 SELECT a, MIN(c) FROM t1 WHERE b = 'x' AND c > 'x' GROUP BY a;
diff --git a/mysql-test/main/myisam_icp.test b/mysql-test/main/myisam_icp.test
index a115d0f7caa..7b4ff23b50e 100644
--- a/mysql-test/main/myisam_icp.test
+++ b/mysql-test/main/myisam_icp.test
@@ -215,7 +215,7 @@ DROP TABLE t1;
 --echo #
 
 CREATE TABLE t1 (a int, b varchar(1), c varchar(1), INDEX idx(b));
-INSERT INTO t1 VALUES (2,'x','x'), (5,'x','y');
+INSERT INTO t1 VALUES (2,'x','x'), (5,'x','y'), (6,'a','b'), (7,'a','b');
 
 SET SESSION optimizer_switch='index_condition_pushdown=off';
 EXPLAIN
diff --git a/mysql-test/main/mysqld--help.result b/mysql-test/main/mysqld--help.result
index 857e11d57ef..f5e1340feda 100644
--- a/mysql-test/main/mysqld--help.result
+++ b/mysql-test/main/mysqld--help.result
@@ -720,6 +720,11 @@ The following specify which files/extra groups are read (specified before remain
  max_connections*5 or max_connections + table_cache*2
  (whichever is larger) number of file descriptors
  (Automatically configured unless set explicitly)
+ --optimizer-cache-hit-ratio=# 
+ Expected hit rate of the row and index cache in storage
+ engines. The value should be an integer between 0 and 99,
+ where 0 means cache is empty and 99 means that value is
+ almost always in the cache
  --optimizer-extra-pruning-depth=# 
  If the optimizer needs to enumerate join prefix of this
  size or larger, then it will try agressively prune away
@@ -1698,6 +1703,7 @@ old-alter-table DEFAULT
 old-mode UTF8_IS_UTF8MB3
 old-passwords FALSE
 old-style-user-limits FALSE
+optimizer-cache-hit-ratio 50
 optimizer-extra-pruning-depth 8
 optimizer-max-sel-arg-weight 32000
 optimizer-prune-level 2
diff --git a/mysql-test/main/negation_elimination.result b/mysql-test/main/negation_elimination.result
index 7b9a76d86b2..0ad23e547b0 100644
--- a/mysql-test/main/negation_elimination.result
+++ b/mysql-test/main/negation_elimination.result
@@ -4,7 +4,7 @@ insert into t1 values (NULL), (0), (1), (2), (3), (4), (5), (6), (7), (8), (9),
 (10), (11), (12), (13), (14), (15), (16), (17), (18), (19);
 explain select * from t1 where not(not(a));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	a	a	5	NULL	20	Using where; Using index
+1	SIMPLE	t1	index	a	a	5	NULL	21	Using where; Using index
 select * from t1 where not(not(a));
 a
 1
@@ -55,7 +55,7 @@ a
 10
 explain select * from t1 where not(a = 10);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	a	a	5	NULL	19	Using where; Using index
+1	SIMPLE	t1	index	a	a	5	NULL	21	Using where; Using index
 select * from t1 where not(a = 10);
 a
 0
@@ -500,7 +500,7 @@ NULL	NULL
 3	1
 explain extended select a, not(not(a)), not(a <= 2 and not(a)), not(a not like "1"), not (a not in (1,2)), not(a != 2) from t1 where not(not(a)) having not(not(a));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	range	a	a	5	NULL	4	100.00	Using where; Using index
+1	SIMPLE	t1	index	a	a	5	NULL	5	80.00	Using where; Using index
 Warnings:
 Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`a` <> 0 AS `not(not(a))`,`test`.`t1`.`a` > 2 or `test`.`t1`.`a` <> 0 AS `not(a <= 2 and not(a))`,`test`.`t1`.`a` like '1' AS `not(a not like "1")`,`test`.`t1`.`a` in (1,2) AS `not (a not in (1,2))`,`test`.`t1`.`a` = 2 AS `not(a != 2)` from `test`.`t1` where `test`.`t1`.`a` <> 0 having `test`.`t1`.`a` <> 0
 drop table t1;
diff --git a/mysql-test/main/null_key.result b/mysql-test/main/null_key.result
index d59a1cd0a2e..572d7302b74 100644
--- a/mysql-test/main/null_key.result
+++ b/mysql-test/main/null_key.result
@@ -160,12 +160,12 @@ a	b
 7	NULL
 explain select * from t1 where (a = 7 or a is null) and (b=7 or b is null);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	a,b	a	10	NULL	4	Using where; Using index
+1	SIMPLE	t1	ref_or_null	a,b	a	5	const	5	Using where; Using index
 select * from t1 where (a = 7 or a is null) and (b=7 or b is null);
 a	b
-NULL	7
 7	NULL
 7	7
+NULL	7
 explain select * from t1 where (a = 7 or a is null) and (a = 7 or a is null);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ref_or_null	a	a	5	const	5	Using where; Using index
@@ -258,10 +258,11 @@ PRIMARY KEY  (id)
 ) ENGINE=MyISAM;
 INSERT INTO t1 VALUES (1,NULL),(2,NULL),(3,1),(4,2),(5,NULL),(6,NULL),(7,3),(8,4),(9,NULL),(10,NULL);
 INSERT INTO t1 VALUES (11,5),(12,6),(13,7),(14,8),(15,9);
+INSERT INTO t1 VALUES (1000,1000),(1010,1010);
 INSERT INTO t2 VALUES (1,NULL),(2,NULL),(3,1),(4,2),(5,NULL),(6,NULL),(7,3),(8,4),(9,NULL),(10,NULL);
 explain select id from t1 where uniq_id is null;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ALL	idx1	NULL	NULL	NULL	15	Using where
+1	SIMPLE	t1	ref	idx1	idx1	5	const	6	Using index condition
 explain select id from t1 where uniq_id =1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	const	idx1	idx1	5	const	1	
@@ -285,6 +286,7 @@ id
 110
 DELETE FROM t1 WHERE uniq_id IS NULL;
 DELETE FROM t2 WHERE uniq_id IS NULL;
+DELETE FROM t1 WHERE id >= 1000;
 SELECT * FROM t1 ORDER BY uniq_id, id;
 id	uniq_id
 3	1
diff --git a/mysql-test/main/null_key.test b/mysql-test/main/null_key.test
index 7eabd6d5dc3..65a93022a2e 100644
--- a/mysql-test/main/null_key.test
+++ b/mysql-test/main/null_key.test
@@ -104,6 +104,7 @@ CREATE TABLE t2 (
 
 INSERT INTO t1 VALUES (1,NULL),(2,NULL),(3,1),(4,2),(5,NULL),(6,NULL),(7,3),(8,4),(9,NULL),(10,NULL);
 INSERT INTO t1 VALUES (11,5),(12,6),(13,7),(14,8),(15,9);
+INSERT INTO t1 VALUES (1000,1000),(1010,1010);
 INSERT INTO t2 VALUES (1,NULL),(2,NULL),(3,1),(4,2),(5,NULL),(6,NULL),(7,3),(8,4),(9,NULL),(10,NULL);
 #
 # Check IS NULL optimization
@@ -122,6 +123,12 @@ select id from t2 where uniq_id is null;
 #
 DELETE FROM t1 WHERE uniq_id IS NULL;
 DELETE FROM t2 WHERE uniq_id IS NULL;
+
+#
+# Delete extra records that were used to force null optimization
+#
+DELETE FROM t1 WHERE id >= 1000;
+
 #
 # Select what is left -- notice the difference
 #
diff --git a/mysql-test/main/opt_trace.result b/mysql-test/main/opt_trace.result
index 331021b1948..1b0dec475eb 100644
--- a/mysql-test/main/opt_trace.result
+++ b/mysql-test/main/opt_trace.result
@@ -118,7 +118,8 @@ select * from v1	{
                 "table": "t1",
                 "table_scan": {
                   "rows": 2,
-                  "cost": 2.004394531
+                  "read_cost": 1.002197266,
+                  "read_and_compare_cost": 1.502197266
                 }
               }
             ]
@@ -131,18 +132,24 @@ select * from v1	{
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 1,
-                          "cost": 2.404394531,
+                          "rows": 2,
+                          "rows_after_scan": 1,
+                          "rows_after_filter": 1,
+                          "cost": 1.502197266,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 1,
-                        "cost": 2.404394531,
+                        "cost": 1.502197266,
                         "uses_join_buffering": false
                       }
                     }
@@ -153,13 +160,14 @@ select * from v1	{
                 "plan_prefix": [],
                 "table": "t1",
                 "rows_for_plan": 1,
-                "cost_for_plan": 2.604394531
+                "cost_for_plan": 1.502197266
               }
             ]
           },
           {
             "best_join_order": ["t1"],
-            "cost": 2.603394531
+            "rows": 1,
+            "cost": 1.502197266
           },
           {
             "substitute_best_equal": {
@@ -277,7 +285,8 @@ select * from (select * from t1 where t1.a=1)q	{
                 "table": "t1",
                 "table_scan": {
                   "rows": 2,
-                  "cost": 2.004394531
+                  "read_cost": 1.002197266,
+                  "read_and_compare_cost": 1.502197266
                 }
               }
             ]
@@ -290,18 +299,24 @@ select * from (select * from t1 where t1.a=1)q	{
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 1,
-                          "cost": 2.404394531,
+                          "rows": 2,
+                          "rows_after_scan": 1,
+                          "rows_after_filter": 1,
+                          "cost": 1.502197266,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 1,
-                        "cost": 2.404394531,
+                        "cost": 1.502197266,
                         "uses_join_buffering": false
                       }
                     }
@@ -312,13 +327,14 @@ select * from (select * from t1 where t1.a=1)q	{
                 "plan_prefix": [],
                 "table": "t1",
                 "rows_for_plan": 1,
-                "cost_for_plan": 2.604394531
+                "cost_for_plan": 1.502197266
               }
             ]
           },
           {
             "best_join_order": ["t1"],
-            "cost": 2.603394531
+            "rows": 1,
+            "cost": 1.502197266
           },
           {
             "substitute_best_equal": {
@@ -441,7 +457,8 @@ select * from v2	{
                       "table": "t1",
                       "table_scan": {
                         "rows": 2,
-                        "cost": 2.004394531
+                        "read_cost": 1.002197266,
+                        "read_and_compare_cost": 1.502197266
                       }
                     }
                   ]
@@ -454,11 +471,17 @@ select * from v2	{
                         {
                           "best_access_path": {
                             "table": "t1",
+                            "plan_details": {
+                              "record_count": 1
+                            },
                             "considered_access_paths": [
                               {
                                 "access_type": "scan",
-                                "resulting_rows": 1,
-                                "cost": 2.404394531,
+                                "rows": 2,
+                                "rows_after_scan": 1,
+                                "rows_after_filter": 1,
+                                "cost": 1.502197266,
+                                "index_only": false,
                                 "chosen": true,
                                 "use_tmp_table": true
                               }
@@ -466,7 +489,7 @@ select * from v2	{
                             "chosen_access_method": {
                               "type": "scan",
                               "records": 1,
-                              "cost": 2.404394531,
+                              "cost": 1.502197266,
                               "uses_join_buffering": false
                             }
                           }
@@ -477,14 +500,15 @@ select * from v2	{
                       "plan_prefix": [],
                       "table": "t1",
                       "rows_for_plan": 1,
-                      "cost_for_plan": 2.604394531,
+                      "cost_for_plan": 1.502197266,
                       "cost_for_sorting": 1
                     }
                   ]
                 },
                 {
                   "best_join_order": ["t1"],
-                  "cost": 3.603394531
+                  "rows": 1,
+                  "cost": 2.502197266
                 },
                 {
                   "substitute_best_equal": {
@@ -522,7 +546,8 @@ select * from v2	{
                 "table": "<derived2>",
                 "table_scan": {
                   "rows": 2,
-                  "cost": 2
+                  "read_cost": 2,
+                  "read_and_compare_cost": 2.5
                 }
               }
             ]
@@ -535,18 +560,24 @@ select * from v2	{
                   {
                     "best_access_path": {
                       "table": "<derived2>",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 2,
-                          "cost": 2.4,
+                          "rows": 2,
+                          "rows_after_scan": 2,
+                          "rows_after_filter": 2,
+                          "cost": 2.5,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 2,
-                        "cost": 2.4,
+                        "cost": 2.5,
                         "uses_join_buffering": false
                       }
                     }
@@ -557,13 +588,14 @@ select * from v2	{
                 "plan_prefix": [],
                 "table": "<derived2>",
                 "rows_for_plan": 2,
-                "cost_for_plan": 2.8
+                "cost_for_plan": 2.5
               }
             ]
           },
           {
             "best_join_order": ["<derived2>"],
-            "cost": 2.799
+            "rows": 2,
+            "cost": 2.5
           },
           {
             "attaching_conditions_to_tables": {
@@ -667,7 +699,8 @@ explain select * from v2	{
                 "table": "t2",
                 "table_scan": {
                   "rows": 10,
-                  "cost": 2.021972656
+                  "read_cost": 1.010986328,
+                  "read_and_compare_cost": 3.510986328
                 }
               }
             ]
@@ -680,18 +713,24 @@ explain select * from v2	{
                   {
                     "best_access_path": {
                       "table": "t2",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 10,
-                          "cost": 4.021972656,
+                          "rows": 10,
+                          "rows_after_scan": 10,
+                          "rows_after_filter": 10,
+                          "cost": 3.510986328,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 10,
-                        "cost": 4.021972656,
+                        "cost": 3.510986328,
                         "uses_join_buffering": false
                       }
                     }
@@ -702,13 +741,14 @@ explain select * from v2	{
                 "plan_prefix": [],
                 "table": "t2",
                 "rows_for_plan": 10,
-                "cost_for_plan": 6.021972656
+                "cost_for_plan": 3.510986328
               }
             ]
           },
           {
             "best_join_order": ["t2"],
-            "cost": 6.020972656
+            "rows": 10,
+            "cost": 3.510986328
           },
           {
             "attaching_conditions_to_tables": {
@@ -791,7 +831,8 @@ explain select * from v1	{
                       "table": "t1",
                       "table_scan": {
                         "rows": 10,
-                        "cost": 2.021972656
+                        "read_cost": 1.010986328,
+                        "read_and_compare_cost": 3.510986328
                       }
                     }
                   ]
@@ -804,11 +845,17 @@ explain select * from v1	{
                         {
                           "best_access_path": {
                             "table": "t1",
+                            "plan_details": {
+                              "record_count": 1
+                            },
                             "considered_access_paths": [
                               {
                                 "access_type": "scan",
-                                "resulting_rows": 10,
-                                "cost": 4.021972656,
+                                "rows": 10,
+                                "rows_after_scan": 10,
+                                "rows_after_filter": 10,
+                                "cost": 3.510986328,
+                                "index_only": false,
                                 "chosen": true,
                                 "use_tmp_table": true
                               }
@@ -816,7 +863,7 @@ explain select * from v1	{
                             "chosen_access_method": {
                               "type": "scan",
                               "records": 10,
-                              "cost": 4.021972656,
+                              "cost": 3.510986328,
                               "uses_join_buffering": false
                             }
                           }
@@ -827,14 +874,15 @@ explain select * from v1	{
                       "plan_prefix": [],
                       "table": "t1",
                       "rows_for_plan": 10,
-                      "cost_for_plan": 6.021972656,
+                      "cost_for_plan": 3.510986328,
                       "cost_for_sorting": 10
                     }
                   ]
                 },
                 {
                   "best_join_order": ["t1"],
-                  "cost": 16.02097266
+                  "rows": 10,
+                  "cost": 13.51098633
                 },
                 {
                   "attaching_conditions_to_tables": {
@@ -866,7 +914,8 @@ explain select * from v1	{
                 "table": "<derived2>",
                 "table_scan": {
                   "rows": 10,
-                  "cost": 10
+                  "read_cost": 10,
+                  "read_and_compare_cost": 12.5
                 }
               }
             ]
@@ -879,18 +928,24 @@ explain select * from v1	{
                   {
                     "best_access_path": {
                       "table": "<derived2>",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 10,
-                          "cost": 12,
+                          "rows": 10,
+                          "rows_after_scan": 10,
+                          "rows_after_filter": 10,
+                          "cost": 12.5,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 10,
-                        "cost": 12,
+                        "cost": 12.5,
                         "uses_join_buffering": false
                       }
                     }
@@ -901,13 +956,14 @@ explain select * from v1	{
                 "plan_prefix": [],
                 "table": "<derived2>",
                 "rows_for_plan": 10,
-                "cost_for_plan": 14
+                "cost_for_plan": 12.5
               }
             ]
           },
           {
             "best_join_order": ["<derived2>"],
-            "cost": 13.999
+            "rows": 10,
+            "cost": 12.5
           },
           {
             "attaching_conditions_to_tables": {
@@ -1039,14 +1095,16 @@ explain select * from t1,t2 where t1.a=t2.b+2 and t2.a= t1.b	{
                 "table": "t1",
                 "table_scan": {
                   "rows": 100,
-                  "cost": 2.317382812
+                  "read_cost": 1.158691406,
+                  "read_and_compare_cost": 26.15869141
                 }
               },
               {
                 "table": "t2",
                 "table_scan": {
                   "rows": 100,
-                  "cost": 2.317382812
+                  "read_cost": 1.158691406,
+                  "read_and_compare_cost": 26.15869141
                 }
               }
             ]
@@ -1059,18 +1117,24 @@ explain select * from t1,t2 where t1.a=t2.b+2 and t2.a= t1.b	{
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 100,
-                          "cost": 22.31738281,
+                          "rows": 100,
+                          "rows_after_scan": 100,
+                          "rows_after_filter": 100,
+                          "cost": 26.15869141,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 100,
-                        "cost": 22.31738281,
+                        "cost": 26.15869141,
                         "uses_join_buffering": false
                       }
                     }
@@ -1078,18 +1142,24 @@ explain select * from t1,t2 where t1.a=t2.b+2 and t2.a= t1.b	{
                   {
                     "best_access_path": {
                       "table": "t2",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 100,
-                          "cost": 22.31738281,
+                          "rows": 100,
+                          "rows_after_scan": 100,
+                          "rows_after_filter": 100,
+                          "cost": 26.15869141,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 100,
-                        "cost": 22.31738281,
+                        "cost": 26.15869141,
                         "uses_join_buffering": false
                       }
                     }
@@ -1100,7 +1170,7 @@ explain select * from t1,t2 where t1.a=t2.b+2 and t2.a= t1.b	{
                 "plan_prefix": [],
                 "table": "t1",
                 "rows_for_plan": 100,
-                "cost_for_plan": 42.31738281,
+                "cost_for_plan": 26.15869141,
                 "rest_of_plan": [
                   {
                     "plan_prefix": ["t1"],
@@ -1108,6 +1178,9 @@ explain select * from t1,t2 where t1.a=t2.b+2 and t2.a= t1.b	{
                       {
                         "best_access_path": {
                           "table": "t2",
+                          "plan_details": {
+                            "record_count": 100
+                          },
                           "considered_access_paths": [
                             {
                               "access_type": "ref",
@@ -1115,23 +1188,23 @@ explain select * from t1,t2 where t1.a=t2.b+2 and t2.a= t1.b	{
                               "used_range_estimates": false,
                               "reason": "not available",
                               "rows": 1,
-                              "cond_check_cost": 2.200585794,
-                              "startup_cost": 0,
-                              "rows_after_filter": 1,
-                              "cost": 220.0585794,
+                              "cost": 125.0585794,
                               "chosen": true
                             },
                             {
-                              "access_type": "scan",
-                              "resulting_rows": 75,
-                              "cost": 1522.317383,
+                              "access_type": "scan_with_join_cache",
+                              "rows": 100,
+                              "rows_after_scan": 75,
+                              "rows_after_filter": 75,
+                              "cost": 1901.158691,
+                              "index_only": false,
                               "chosen": false
                             }
                           ],
                           "chosen_access_method": {
                             "type": "ref",
                             "records": 1,
-                            "cost": 220.0585794,
+                            "cost": 125.0585794,
                             "uses_join_buffering": false
                           }
                         }
@@ -1142,7 +1215,7 @@ explain select * from t1,t2 where t1.a=t2.b+2 and t2.a= t1.b	{
                     "plan_prefix": ["t1"],
                     "table": "t2",
                     "rows_for_plan": 100,
-                    "cost_for_plan": 282.3759623
+                    "cost_for_plan": 151.2172709
                   }
                 ]
               },
@@ -1150,7 +1223,7 @@ explain select * from t1,t2 where t1.a=t2.b+2 and t2.a= t1.b	{
                 "plan_prefix": [],
                 "table": "t2",
                 "rows_for_plan": 100,
-                "cost_for_plan": 42.31738281,
+                "cost_for_plan": 26.15869141,
                 "rest_of_plan": [
                   {
                     "plan_prefix": ["t2"],
@@ -1158,6 +1231,9 @@ explain select * from t1,t2 where t1.a=t2.b+2 and t2.a= t1.b	{
                       {
                         "best_access_path": {
                           "table": "t1",
+                          "plan_details": {
+                            "record_count": 100
+                          },
                           "considered_access_paths": [
                             {
                               "access_type": "ref",
@@ -1165,23 +1241,23 @@ explain select * from t1,t2 where t1.a=t2.b+2 and t2.a= t1.b	{
                               "used_range_estimates": false,
                               "reason": "not available",
                               "rows": 1,
-                              "cond_check_cost": 2.200585794,
-                              "startup_cost": 0,
-                              "rows_after_filter": 1,
-                              "cost": 220.0585794,
+                              "cost": 125.0585794,
                               "chosen": true
                             },
                             {
-                              "access_type": "scan",
-                              "resulting_rows": 75,
-                              "cost": 1522.317383,
+                              "access_type": "scan_with_join_cache",
+                              "rows": 100,
+                              "rows_after_scan": 75,
+                              "rows_after_filter": 75,
+                              "cost": 1901.158691,
+                              "index_only": false,
                               "chosen": false
                             }
                           ],
                           "chosen_access_method": {
                             "type": "ref",
                             "records": 1,
-                            "cost": 220.0585794,
+                            "cost": 125.0585794,
                             "uses_join_buffering": false
                           }
                         }
@@ -1192,10 +1268,10 @@ explain select * from t1,t2 where t1.a=t2.b+2 and t2.a= t1.b	{
                     "plan_prefix": ["t2"],
                     "table": "t1",
                     "rows_for_plan": 100,
-                    "cost_for_plan": 282.3759623,
+                    "cost_for_plan": 151.2172709,
                     "pruned_by_cost": true,
-                    "current_cost": 282.3759623,
-                    "best_cost": 282.3759623
+                    "current_cost": 151.2172709,
+                    "best_cost": 151.2173709
                   }
                 ]
               }
@@ -1203,7 +1279,8 @@ explain select * from t1,t2 where t1.a=t2.b+2 and t2.a= t1.b	{
           },
           {
             "best_join_order": ["t1", "t2"],
-            "cost": 282.3749623
+            "rows": 100,
+            "cost": 151.2172709
           },
           {
             "substitute_best_equal": {
@@ -1284,7 +1361,7 @@ EXPLAIN SELECT DISTINCT a FROM t1	{
                 "range_analysis": {
                   "table_scan": {
                     "rows": 65536,
-                    "cost": 13255.2
+                    "cost": 16457
                   },
                   "potential_range_indexes": [
                     {
@@ -1300,9 +1377,8 @@ EXPLAIN SELECT DISTINCT a FROM t1	{
                   ],
                   "best_covering_index_scan": {
                     "index": "a",
-                    "cost": 13377.39141,
-                    "chosen": false,
-                    "cause": "cost"
+                    "cost": 14898.29141,
+                    "chosen": true
                   },
                   "group_index_range": {
                     "distinct_query": true,
@@ -1357,10 +1433,15 @@ EXPLAIN SELECT DISTINCT a FROM t1	{
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "index_merge",
-                          "resulting_rows": 5,
+                          "rows": 5,
+                          "rows_after_scan": 5,
+                          "rows_after_filter": 5,
                           "cost": 6.5,
                           "chosen": true
                         }
@@ -1379,13 +1460,14 @@ EXPLAIN SELECT DISTINCT a FROM t1	{
                 "plan_prefix": [],
                 "table": "t1",
                 "rows_for_plan": 5,
-                "cost_for_plan": 7.5
+                "cost_for_plan": 6.5
               }
             ]
           },
           {
             "best_join_order": ["t1"],
-            "cost": 7.499
+            "rows": 5,
+            "cost": 6.5
           },
           {
             "attaching_conditions_to_tables": {
@@ -1480,7 +1562,7 @@ EXPLAIN SELECT MIN(d) FROM t1 where b=2 and c=3  group by a	{
                 "range_analysis": {
                   "table_scan": {
                     "rows": 7,
-                    "cost": 5.429052734
+                    "cost": 2.764526367
                   },
                   "potential_range_indexes": [
                     {
@@ -1491,7 +1573,7 @@ EXPLAIN SELECT MIN(d) FROM t1 where b=2 and c=3  group by a	{
                   ],
                   "best_covering_index_scan": {
                     "index": "a",
-                    "cost": 2.409226263,
+                    "cost": 2.084226263,
                     "chosen": true
                   },
                   "setup_range_conditions": [],
@@ -1555,11 +1637,17 @@ EXPLAIN SELECT MIN(d) FROM t1 where b=2 and c=3  group by a	{
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 1,
-                          "cost": 3.429052734,
+                          "rows": 7,
+                          "rows_after_scan": 1,
+                          "rows_after_filter": 1,
+                          "cost": 2.084226263,
+                          "index_only": true,
                           "chosen": true,
                           "use_tmp_table": true
                         }
@@ -1567,7 +1655,7 @@ EXPLAIN SELECT MIN(d) FROM t1 where b=2 and c=3  group by a	{
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 1,
-                        "cost": 3.429052734,
+                        "cost": 2.084226263,
                         "uses_join_buffering": false
                       }
                     }
@@ -1578,14 +1666,15 @@ EXPLAIN SELECT MIN(d) FROM t1 where b=2 and c=3  group by a	{
                 "plan_prefix": [],
                 "table": "t1",
                 "rows_for_plan": 1,
-                "cost_for_plan": 3.629052734,
+                "cost_for_plan": 2.084226263,
                 "cost_for_sorting": 1
               }
             ]
           },
           {
             "best_join_order": ["t1"],
-            "cost": 4.628052734
+            "rows": 1,
+            "cost": 3.084226263
           },
           {
             "substitute_best_equal": {
@@ -1608,7 +1697,7 @@ EXPLAIN SELECT MIN(d) FROM t1 where b=2 and c=3  group by a	{
             "reconsidering_access_paths_for_index_ordering": {
               "clause": "GROUP BY",
               "fanout": 1,
-              "read_time": 3.430052734,
+              "read_time": 2.084226263,
               "table": "t1",
               "rows_estimation": 7,
               "possible_keys": [
@@ -1617,8 +1706,8 @@ EXPLAIN SELECT MIN(d) FROM t1 where b=2 and c=3  group by a	{
                   "can_resolve_order": true,
                   "direction": 1,
                   "updated_limit": 7,
-                  "index_scan_time": 7,
-                  "records": 7,
+                  "index_scan_cost": 2.084226263,
+                  "rows": 7,
                   "chosen": true
                 }
               ]
@@ -1707,7 +1796,7 @@ EXPLAIN SELECT id,MIN(a),MAX(a) FROM t1 WHERE a>=20010104e0 GROUP BY id	{
                 "range_analysis": {
                   "table_scan": {
                     "rows": 16,
-                    "cost": 7.23125
+                    "cost": 5.015625
                   },
                   "potential_range_indexes": [
                     {
@@ -1718,7 +1807,7 @@ EXPLAIN SELECT id,MIN(a),MAX(a) FROM t1 WHERE a>=20010104e0 GROUP BY id	{
                   ],
                   "best_covering_index_scan": {
                     "index": "id",
-                    "cost": 4.21171589,
+                    "cost": 4.11171589,
                     "chosen": true
                   },
                   "setup_range_conditions": [],
@@ -1782,10 +1871,15 @@ EXPLAIN SELECT id,MIN(a),MAX(a) FROM t1 WHERE a>=20010104e0 GROUP BY id	{
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "index_merge",
-                          "resulting_rows": 9,
+                          "rows": 9,
+                          "rows_after_scan": 9,
+                          "rows_after_filter": 9,
                           "cost": 3.25,
                           "chosen": true,
                           "use_tmp_table": true
@@ -1805,14 +1899,15 @@ EXPLAIN SELECT id,MIN(a),MAX(a) FROM t1 WHERE a>=20010104e0 GROUP BY id	{
                 "plan_prefix": [],
                 "table": "t1",
                 "rows_for_plan": 9,
-                "cost_for_plan": 5.05,
+                "cost_for_plan": 3.25,
                 "cost_for_sorting": 9
               }
             ]
           },
           {
             "best_join_order": ["t1"],
-            "cost": 14.049
+            "rows": 9,
+            "cost": 12.25
           },
           {
             "substitute_best_equal": {
@@ -1903,7 +1998,7 @@ EXPLAIN SELECT * FROM t1 WHERE a = 20010104e0 GROUP BY id	{
                 "range_analysis": {
                   "table_scan": {
                     "rows": 16,
-                    "cost": 7.23125
+                    "cost": 5.015625
                   },
                   "potential_range_indexes": [
                     {
@@ -1914,7 +2009,7 @@ EXPLAIN SELECT * FROM t1 WHERE a = 20010104e0 GROUP BY id	{
                   ],
                   "best_covering_index_scan": {
                     "index": "id",
-                    "cost": 4.21171589,
+                    "cost": 4.11171589,
                     "chosen": true
                   },
                   "setup_range_conditions": [],
@@ -1978,10 +2073,15 @@ EXPLAIN SELECT * FROM t1 WHERE a = 20010104e0 GROUP BY id	{
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "index_merge",
-                          "resulting_rows": 9,
+                          "rows": 9,
+                          "rows_after_scan": 9,
+                          "rows_after_filter": 9,
                           "cost": 3.25,
                           "chosen": true,
                           "use_tmp_table": true
@@ -2001,14 +2101,15 @@ EXPLAIN SELECT * FROM t1 WHERE a = 20010104e0 GROUP BY id	{
                 "plan_prefix": [],
                 "table": "t1",
                 "rows_for_plan": 9,
-                "cost_for_plan": 5.05,
+                "cost_for_plan": 3.25,
                 "cost_for_sorting": 9
               }
             ]
           },
           {
             "best_join_order": ["t1"],
-            "cost": 14.049
+            "rows": 9,
+            "cost": 12.25
           },
           {
             "substitute_best_equal": {
@@ -2148,7 +2249,7 @@ explain  select * from t1 where a=1 and b=2 order by c limit 1	{
                 "range_analysis": {
                   "table_scan": {
                     "rows": 1000,
-                    "cost": 232.5644531
+                    "cost": 265.2822266
                   },
                   "potential_range_indexes": [
                     {
@@ -2177,7 +2278,7 @@ explain  select * from t1 where a=1 and b=2 order by c limit 1	{
                         "using_mrr": false,
                         "index_only": false,
                         "rows": 180,
-                        "cost": 216.2943776,
+                        "cost": 135.6693776,
                         "chosen": true
                       },
                       {
@@ -2187,7 +2288,7 @@ explain  select * from t1 where a=1 and b=2 order by c limit 1	{
                         "using_mrr": false,
                         "index_only": false,
                         "rows": 21,
-                        "cost": 25.36242739,
+                        "cost": 16.28742739,
                         "chosen": true
                       }
                     ],
@@ -2208,7 +2309,7 @@ explain  select * from t1 where a=1 and b=2 order by c limit 1	{
                       "ranges": ["(1,2) <= (a,b) <= (1,2)"]
                     },
                     "rows_for_plan": 21,
-                    "cost_for_plan": 25.36242739,
+                    "cost_for_plan": 16.28742739,
                     "chosen": true
                   }
                 }
@@ -2218,12 +2319,12 @@ explain  select * from t1 where a=1 and b=2 order by c limit 1	{
                 "rowid_filters": [
                   {
                     "key": "a_b",
-                    "build_cost": 0.886777098,
+                    "build_cost": 1.127362357,
                     "rows": 21
                   },
                   {
                     "key": "a_c",
-                    "build_cost": 10.52169992,
+                    "build_cost": 6.264109827,
                     "rows": 180
                   }
                 ]
@@ -2259,16 +2360,16 @@ explain  select * from t1 where a=1 and b=2 order by c limit 1	{
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "ref",
                           "index": "a_c",
                           "used_range_estimates": true,
                           "rows": 180,
-                          "cond_check_cost": 216.2743776,
-                          "startup_cost": 0,
-                          "rows_after_filter": 180,
-                          "cost": 216.2743776,
+                          "cost": 135.6493776,
                           "chosen": true
                         },
                         {
@@ -2276,10 +2377,7 @@ explain  select * from t1 where a=1 and b=2 order by c limit 1	{
                           "index": "a_b",
                           "used_range_estimates": true,
                           "rows": 21,
-                          "cond_check_cost": 25.34242739,
-                          "startup_cost": 0,
-                          "rows_after_filter": 21,
-                          "cost": 25.34242739,
+                          "cost": 16.26742739,
                           "chosen": true
                         },
                         {
@@ -2291,7 +2389,7 @@ explain  select * from t1 where a=1 and b=2 order by c limit 1	{
                       "chosen_access_method": {
                         "type": "ref",
                         "records": 21,
-                        "cost": 25.34242739,
+                        "cost": 16.26742739,
                         "uses_join_buffering": false
                       }
                     }
@@ -2302,13 +2400,14 @@ explain  select * from t1 where a=1 and b=2 order by c limit 1	{
                 "plan_prefix": [],
                 "table": "t1",
                 "rows_for_plan": 21,
-                "cost_for_plan": 29.54242739
+                "cost_for_plan": 16.26742739
               }
             ]
           },
           {
             "best_join_order": ["t1"],
-            "cost": 29.54142739
+            "rows": 21,
+            "cost": 16.26742739
           },
           {
             "substitute_best_equal": {
@@ -2331,7 +2430,7 @@ explain  select * from t1 where a=1 and b=2 order by c limit 1	{
             "reconsidering_access_paths_for_index_ordering": {
               "clause": "ORDER BY",
               "fanout": 1,
-              "read_time": 25.34342739,
+              "read_time": 16.26742739,
               "table": "t1",
               "rows_estimation": 21,
               "possible_keys": [
@@ -2340,7 +2439,7 @@ explain  select * from t1 where a=1 and b=2 order by c limit 1	{
                   "can_resolve_order": true,
                   "direction": 1,
                   "updated_limit": 47,
-                  "index_scan_time": 47,
+                  "index_scan_cost": 35.77753234,
                   "usable": false,
                   "cause": "cost"
                 },
@@ -2349,9 +2448,9 @@ explain  select * from t1 where a=1 and b=2 order by c limit 1	{
                   "can_resolve_order": true,
                   "direction": 1,
                   "updated_limit": 47,
-                  "range_scan_time": 4.331020747,
-                  "index_scan_time": 4.331020747,
-                  "records": 180,
+                  "index_scan_cost": 35.78900415,
+                  "range_scan_cost": 6.375520747,
+                  "rows": 180,
                   "chosen": true
                 },
                 {
@@ -2396,7 +2495,7 @@ explain  select * from t1 where a=1 and b=2 order by c limit 1	{
                     "using_mrr": false,
                     "index_only": false,
                     "rows": 180,
-                    "cost": 216.2943776,
+                    "cost": 135.6693776,
                     "chosen": true
                   }
                 ],
@@ -2417,7 +2516,7 @@ explain  select * from t1 where a=1 and b=2 order by c limit 1	{
                   "ranges": ["(1) <= (a) <= (1)"]
                 },
                 "rows_for_plan": 180,
-                "cost_for_plan": 216.2943776,
+                "cost_for_plan": 135.6693776,
                 "chosen": true
               }
             }
@@ -2524,7 +2623,8 @@ select t1.a from t1 left join t2 on t1.a=t2.a	{
                 "table": "t1",
                 "table_scan": {
                   "rows": 4,
-                  "cost": 2.006835938
+                  "read_cost": 1.003417969,
+                  "read_and_compare_cost": 2.003417969
                 }
               },
               {
@@ -2543,18 +2643,24 @@ select t1.a from t1 left join t2 on t1.a=t2.a	{
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 4,
-                          "cost": 2.806835937,
+                          "rows": 4,
+                          "rows_after_scan": 4,
+                          "rows_after_filter": 4,
+                          "cost": 2.003417969,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 4,
-                        "cost": 2.806835937,
+                        "cost": 2.003417969,
                         "uses_join_buffering": false
                       }
                     }
@@ -2565,13 +2671,14 @@ select t1.a from t1 left join t2 on t1.a=t2.a	{
                 "plan_prefix": ["t2"],
                 "table": "t1",
                 "rows_for_plan": 4,
-                "cost_for_plan": 3.606835937
+                "cost_for_plan": 2.003417969
               }
             ]
           },
           {
             "best_join_order": ["t2", "t1"],
-            "cost": 3.605835937
+            "rows": 4,
+            "cost": 2.003417969
           },
           {
             "substitute_best_equal": {
@@ -2671,14 +2778,16 @@ explain select * from t1 left join t2 on t2.a=t1.a	{
                 "table": "t1",
                 "table_scan": {
                   "rows": 4,
-                  "cost": 2.006835938
+                  "read_cost": 1.003417969,
+                  "read_and_compare_cost": 2.003417969
                 }
               },
               {
                 "table": "t2",
                 "table_scan": {
                   "rows": 2,
-                  "cost": 2.004394531
+                  "read_cost": 1.002197266,
+                  "read_and_compare_cost": 1.502197266
                 }
               }
             ]
@@ -2691,18 +2800,24 @@ explain select * from t1 left join t2 on t2.a=t1.a	{
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 4,
-                          "cost": 2.806835937,
+                          "rows": 4,
+                          "rows_after_scan": 4,
+                          "rows_after_filter": 4,
+                          "cost": 2.003417969,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 4,
-                        "cost": 2.806835937,
+                        "cost": 2.003417969,
                         "uses_join_buffering": false
                       }
                     }
@@ -2713,7 +2828,7 @@ explain select * from t1 left join t2 on t2.a=t1.a	{
                 "plan_prefix": [],
                 "table": "t1",
                 "rows_for_plan": 4,
-                "cost_for_plan": 3.606835937,
+                "cost_for_plan": 2.003417969,
                 "rest_of_plan": [
                   {
                     "plan_prefix": ["t1"],
@@ -2721,28 +2836,31 @@ explain select * from t1 left join t2 on t2.a=t1.a	{
                       {
                         "best_access_path": {
                           "table": "t2",
+                          "plan_details": {
+                            "record_count": 4
+                          },
                           "considered_access_paths": [
                             {
                               "access_type": "eq_ref",
                               "index": "PRIMARY",
                               "rows": 1,
-                              "cond_check_cost": 1.2,
-                              "startup_cost": 0,
-                              "rows_after_filter": 1,
-                              "cost": 4.8,
+                              "cost": 5.002147913,
                               "chosen": true
                             },
                             {
                               "access_type": "scan",
-                              "resulting_rows": 1.5,
-                              "cost": 10.81757812,
+                              "rows": 2,
+                              "rows_after_scan": 1.5,
+                              "rows_after_filter": 1.5,
+                              "cost": 6.008789062,
+                              "index_only": false,
                               "chosen": false
                             }
                           ],
                           "chosen_access_method": {
                             "type": "eq_ref",
                             "records": 1,
-                            "cost": 4.8,
+                            "cost": 5.002147913,
                             "uses_join_buffering": false
                           }
                         }
@@ -2753,7 +2871,7 @@ explain select * from t1 left join t2 on t2.a=t1.a	{
                     "plan_prefix": ["t1"],
                     "table": "t2",
                     "rows_for_plan": 4,
-                    "cost_for_plan": 9.206835937
+                    "cost_for_plan": 7.005565882
                   }
                 ]
               }
@@ -2761,7 +2879,8 @@ explain select * from t1 left join t2 on t2.a=t1.a	{
           },
           {
             "best_join_order": ["t1", "t2"],
-            "cost": 9.205835937
+            "rows": 4,
+            "cost": 7.005565882
           },
           {
             "substitute_best_equal": {
@@ -2898,7 +3017,8 @@ explain select t1.a from t1 left join (t2 join t3 on t2.b=t3.b) on t2.a=t1.a and
                 "table": "t1",
                 "table_scan": {
                   "rows": 4,
-                  "cost": 2.006835938
+                  "read_cost": 1.003417969,
+                  "read_and_compare_cost": 2.003417969
                 }
               },
               {
@@ -2923,18 +3043,24 @@ explain select t1.a from t1 left join (t2 join t3 on t2.b=t3.b) on t2.a=t1.a and
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 4,
-                          "cost": 2.806835937,
+                          "rows": 4,
+                          "rows_after_scan": 4,
+                          "rows_after_filter": 4,
+                          "cost": 2.003417969,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 4,
-                        "cost": 2.806835937,
+                        "cost": 2.003417969,
                         "uses_join_buffering": false
                       }
                     }
@@ -2945,13 +3071,14 @@ explain select t1.a from t1 left join (t2 join t3 on t2.b=t3.b) on t2.a=t1.a and
                 "plan_prefix": ["t3", "t2"],
                 "table": "t1",
                 "rows_for_plan": 4,
-                "cost_for_plan": 3.606835937
+                "cost_for_plan": 2.003417969
               }
             ]
           },
           {
             "best_join_order": ["t3", "t2", "t1"],
-            "cost": 3.605835937
+            "rows": 4,
+            "cost": 2.003417969
           },
           {
             "substitute_best_equal": {
@@ -3111,14 +3238,16 @@ explain extended select * from t1 where a in (select pk from t10)	{
                 "table": "t1",
                 "table_scan": {
                   "rows": 3,
-                  "cost": 2.006591797
+                  "read_cost": 1.003295898,
+                  "read_and_compare_cost": 1.753295898
                 }
               },
               {
                 "table": "t10",
                 "table_scan": {
                   "rows": 10,
-                  "cost": 2.021972656
+                  "read_cost": 1.010986328,
+                  "read_and_compare_cost": 3.510986328
                 }
               }
             ]
@@ -3139,18 +3268,24 @@ explain extended select * from t1 where a in (select pk from t10)	{
                         {
                           "best_access_path": {
                             "table": "t10",
+                            "plan_details": {
+                              "record_count": 1
+                            },
                             "considered_access_paths": [
                               {
                                 "access_type": "scan",
-                                "resulting_rows": 10,
-                                "cost": 4.021972656,
+                                "rows": 10,
+                                "rows_after_scan": 10,
+                                "rows_after_filter": 10,
+                                "cost": 3.510986328,
+                                "index_only": false,
                                 "chosen": true
                               }
                             ],
                             "chosen_access_method": {
                               "type": "scan",
                               "records": 10,
-                              "cost": 4.021972656,
+                              "cost": 3.510986328,
                               "uses_join_buffering": false
                             }
                           }
@@ -3161,7 +3296,7 @@ explain extended select * from t1 where a in (select pk from t10)	{
                       "plan_prefix": [],
                       "table": "t10",
                       "rows_for_plan": 10,
-                      "cost_for_plan": 6.021972656
+                      "cost_for_plan": 3.510986328
                     }
                   ]
                 }
@@ -3176,18 +3311,24 @@ explain extended select * from t1 where a in (select pk from t10)	{
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 3,
-                          "cost": 2.606591797,
+                          "rows": 3,
+                          "rows_after_scan": 3,
+                          "rows_after_filter": 3,
+                          "cost": 1.753295898,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 3,
-                        "cost": 2.606591797,
+                        "cost": 1.753295898,
                         "uses_join_buffering": false
                       }
                     }
@@ -3195,18 +3336,24 @@ explain extended select * from t1 where a in (select pk from t10)	{
                   {
                     "best_access_path": {
                       "table": "t10",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 10,
-                          "cost": 4.021972656,
+                          "rows": 10,
+                          "rows_after_scan": 10,
+                          "rows_after_filter": 10,
+                          "cost": 3.510986328,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 10,
-                        "cost": 4.021972656,
+                        "cost": 3.510986328,
                         "uses_join_buffering": false
                       }
                     }
@@ -3217,7 +3364,7 @@ explain extended select * from t1 where a in (select pk from t10)	{
                 "plan_prefix": [],
                 "table": "t1",
                 "rows_for_plan": 3,
-                "cost_for_plan": 3.206591797,
+                "cost_for_plan": 1.753295898,
                 "semijoin_strategy_choice": [],
                 "rest_of_plan": [
                   {
@@ -3226,18 +3373,24 @@ explain extended select * from t1 where a in (select pk from t10)	{
                       {
                         "best_access_path": {
                           "table": "t10",
+                          "plan_details": {
+                            "record_count": 3
+                          },
                           "considered_access_paths": [
                             {
-                              "access_type": "scan",
-                              "resulting_rows": 10,
-                              "cost": 10.02197266,
+                              "access_type": "scan_with_join_cache",
+                              "rows": 10,
+                              "rows_after_scan": 10,
+                              "rows_after_filter": 10,
+                              "cost": 11.01098633,
+                              "index_only": false,
                               "chosen": true
                             }
                           ],
                           "chosen_access_method": {
                             "type": "scan",
                             "records": 10,
-                            "cost": 10.02197266,
+                            "cost": 11.01098633,
                             "uses_join_buffering": true
                           }
                         }
@@ -3248,22 +3401,25 @@ explain extended select * from t1 where a in (select pk from t10)	{
                     "plan_prefix": ["t1"],
                     "table": "t10",
                     "rows_for_plan": 30,
-                    "cost_for_plan": 19.22856445,
+                    "cost_for_plan": 12.76428223,
                     "semijoin_strategy_choice": [
                       {
                         "strategy": "FirstMatch",
                         "records": 3,
-                        "read_time": 19.22856445
+                        "cost": 12.76428223
                       },
                       {
                         "strategy": "SJ-Materialization",
                         "records": 3,
-                        "cost": 7.878564453
+                        "cost": 6.914282227
                       },
                       {
                         "strategy": "DuplicateWeedout",
                         "records": 3,
-                        "read_time": 35.72856445
+                        "dups_cost": 12.76428223,
+                        "write_cost": 2.5,
+                        "full_lookup_cost": 15,
+                        "total_cost": 30.26428223
                       },
                       {
                         "chosen_strategy": "SJ-Materialization"
@@ -3276,7 +3432,7 @@ explain extended select * from t1 where a in (select pk from t10)	{
                 "plan_prefix": [],
                 "table": "t10",
                 "rows_for_plan": 10,
-                "cost_for_plan": 6.021972656,
+                "cost_for_plan": 3.510986328,
                 "semijoin_strategy_choice": [],
                 "pruned_by_heuristic": true
               }
@@ -3296,7 +3452,8 @@ explain extended select * from t1 where a in (select pk from t10)	{
           },
           {
             "best_join_order": ["t1", "<subquery2>"],
-            "cost": 7.877564453
+            "rows": 3,
+            "cost": 6.914282227
           },
           {
             "substitute_best_equal": {
@@ -3465,7 +3622,7 @@ explain select * from t1 where pk = 2 and a=5 and b=1	{
                 "range_analysis": {
                   "table_scan": {
                     "rows": 10,
-                    "cost": 6.031738281
+                    "cost": 3.515869141
                   },
                   "potential_range_indexes": [
                     {
@@ -3486,7 +3643,7 @@ explain select * from t1 where pk = 2 and a=5 and b=1	{
                   ],
                   "best_covering_index_scan": {
                     "index": "pk_a_b",
-                    "cost": 3.010739566,
+                    "cost": 2.760739566,
                     "chosen": true
                   },
                   "setup_range_conditions": [],
@@ -3499,7 +3656,7 @@ explain select * from t1 where pk = 2 and a=5 and b=1	{
                         "using_mrr": false,
                         "index_only": false,
                         "rows": 1,
-                        "cost": 1.345585794,
+                        "cost": 1.270585794,
                         "chosen": true
                       },
                       {
@@ -3509,7 +3666,7 @@ explain select * from t1 where pk = 2 and a=5 and b=1	{
                         "using_mrr": false,
                         "index_only": false,
                         "rows": 1,
-                        "cost": 1.345829876,
+                        "cost": 1.270829876,
                         "chosen": false,
                         "cause": "cost"
                       },
@@ -3520,7 +3677,7 @@ explain select * from t1 where pk = 2 and a=5 and b=1	{
                         "using_mrr": false,
                         "index_only": true,
                         "rows": 1,
-                        "cost": 0.346073957,
+                        "cost": 0.746073957,
                         "chosen": true
                       }
                     ],
@@ -3528,10 +3685,10 @@ explain select * from t1 where pk = 2 and a=5 and b=1	{
                       "intersecting_indexes": [
                         {
                           "index": "pk",
-                          "index_scan_cost": 1.000585794,
-                          "cumulated_index_scan_cost": 1.000585794,
-                          "disk_sweep_cost": 0.90078125,
-                          "cumulative_total_cost": 1.901367044,
+                          "index_scan_cost": 0.525585794,
+                          "cumulated_index_scan_cost": 0.525585794,
+                          "disk_sweep_cost": 0.75,
+                          "cumulative_total_cost": 1.275585794,
                           "usable": true,
                           "matching_rows_now": 1,
                           "intersect_covering_with_this_index": false,
@@ -3569,7 +3726,7 @@ explain select * from t1 where pk = 2 and a=5 and b=1	{
                       "ranges": ["(2,5,1) <= (pk,a,b) <= (2,5,1)"]
                     },
                     "rows_for_plan": 1,
-                    "cost_for_plan": 0.346073957,
+                    "cost_for_plan": 0.746073957,
                     "chosen": true
                   }
                 }
@@ -3579,17 +3736,17 @@ explain select * from t1 where pk = 2 and a=5 and b=1	{
                 "rowid_filters": [
                   {
                     "key": "pk",
-                    "build_cost": 0.130585794,
+                    "build_cost": 0.526585794,
                     "rows": 1
                   },
                   {
                     "key": "pk_a",
-                    "build_cost": 0.130829876,
+                    "build_cost": 0.526829876,
                     "rows": 1
                   },
                   {
                     "key": "pk_a_b",
-                    "build_cost": 0.131073957,
+                    "build_cost": 0.527073957,
                     "rows": 1
                   }
                 ]
@@ -3625,16 +3782,16 @@ explain select * from t1 where pk = 2 and a=5 and b=1	{
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "ref",
                           "index": "pk",
                           "used_range_estimates": true,
                           "rows": 1,
-                          "cond_check_cost": 1.325585794,
-                          "startup_cost": 0,
-                          "rows_after_filter": 1,
-                          "cost": 1.325585794,
+                          "cost": 1.250585794,
                           "chosen": true
                         },
                         {
@@ -3642,10 +3799,7 @@ explain select * from t1 where pk = 2 and a=5 and b=1	{
                           "index": "pk_a",
                           "used_range_estimates": true,
                           "rows": 1,
-                          "cond_check_cost": 1.325829876,
-                          "startup_cost": 0,
-                          "rows_after_filter": 1,
-                          "cost": 1.325829876,
+                          "cost": 1.250829876,
                           "chosen": false,
                           "cause": "cost"
                         },
@@ -3654,10 +3808,7 @@ explain select * from t1 where pk = 2 and a=5 and b=1	{
                           "index": "pk_a_b",
                           "used_range_estimates": true,
                           "rows": 1,
-                          "cond_check_cost": 0.326073957,
-                          "startup_cost": 0,
-                          "rows_after_filter": 1,
-                          "cost": 0.326073957,
+                          "cost": 0.726073957,
                           "chosen": true
                         },
                         {
@@ -3669,7 +3820,7 @@ explain select * from t1 where pk = 2 and a=5 and b=1	{
                       "chosen_access_method": {
                         "type": "ref",
                         "records": 1,
-                        "cost": 0.326073957,
+                        "cost": 0.726073957,
                         "uses_join_buffering": false
                       }
                     }
@@ -3680,13 +3831,14 @@ explain select * from t1 where pk = 2 and a=5 and b=1	{
                 "plan_prefix": [],
                 "table": "t1",
                 "rows_for_plan": 1,
-                "cost_for_plan": 0.526073957
+                "cost_for_plan": 0.726073957
               }
             ]
           },
           {
             "best_join_order": ["t1"],
-            "cost": 0.525073957
+            "rows": 1,
+            "cost": 0.726073957
           },
           {
             "substitute_best_equal": {
@@ -3782,7 +3934,8 @@ select f1(a) from t1	{
                 "table": "t1",
                 "table_scan": {
                   "rows": 4,
-                  "cost": 2.006835938
+                  "read_cost": 1.003417969,
+                  "read_and_compare_cost": 2.003417969
                 }
               }
             ]
@@ -3795,18 +3948,24 @@ select f1(a) from t1	{
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 4,
-                          "cost": 2.806835937,
+                          "rows": 4,
+                          "rows_after_scan": 4,
+                          "rows_after_filter": 4,
+                          "cost": 2.003417969,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 4,
-                        "cost": 2.806835937,
+                        "cost": 2.003417969,
                         "uses_join_buffering": false
                       }
                     }
@@ -3817,13 +3976,14 @@ select f1(a) from t1	{
                 "plan_prefix": [],
                 "table": "t1",
                 "rows_for_plan": 4,
-                "cost_for_plan": 3.606835937
+                "cost_for_plan": 2.003417969
               }
             ]
           },
           {
             "best_join_order": ["t1"],
-            "cost": 3.605835937
+            "rows": 4,
+            "cost": 2.003417969
           },
           {
             "attaching_conditions_to_tables": {
@@ -3887,7 +4047,8 @@ select f2(a) from t1	{
                 "table": "t1",
                 "table_scan": {
                   "rows": 4,
-                  "cost": 2.006835938
+                  "read_cost": 1.003417969,
+                  "read_and_compare_cost": 2.003417969
                 }
               }
             ]
@@ -3900,18 +4061,24 @@ select f2(a) from t1	{
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 4,
-                          "cost": 2.806835937,
+                          "rows": 4,
+                          "rows_after_scan": 4,
+                          "rows_after_filter": 4,
+                          "cost": 2.003417969,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 4,
-                        "cost": 2.806835937,
+                        "cost": 2.003417969,
                         "uses_join_buffering": false
                       }
                     }
@@ -3922,13 +4089,14 @@ select f2(a) from t1	{
                 "plan_prefix": [],
                 "table": "t1",
                 "rows_for_plan": 4,
-                "cost_for_plan": 3.606835937
+                "cost_for_plan": 2.003417969
               }
             ]
           },
           {
             "best_join_order": ["t1"],
-            "cost": 3.605835937
+            "rows": 4,
+            "cost": 2.003417969
           },
           {
             "attaching_conditions_to_tables": {
@@ -3969,7 +4137,7 @@ a
 2
 select length(trace) from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
 length(trace)
-2393
+2719
 set optimizer_trace_max_mem_size=100;
 select * from t1;
 a
@@ -3983,7 +4151,7 @@ select * from t1	{
       "join_preparation": {
         "select_id": 1,
         "steps": [
-        	2293	0
+        	2619	0
 set optimizer_trace_max_mem_size=0;
 select * from t1;
 a
@@ -3991,7 +4159,7 @@ a
 2
 select * from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
 QUERY	TRACE	MISSING_BYTES_BEYOND_MAX_MEM_SIZE	INSUFFICIENT_PRIVILEGES
-select * from t1		2393	0
+select * from t1		2719	0
 drop table t1;
 set optimizer_trace='enabled=off';
 set @@optimizer_trace_max_mem_size= @save_optimizer_trace_max_mem_size;
@@ -4016,7 +4184,7 @@ explain delete from t0 where t0.a<3	{
       "range_analysis": {
         "table_scan": {
           "rows": 10,
-          "cost": 6.021972656
+          "cost": 3.510986328
         },
         "potential_range_indexes": [
           {
@@ -4035,7 +4203,7 @@ explain delete from t0 where t0.a<3	{
               "using_mrr": false,
               "index_only": false,
               "rows": 3,
-              "cost": 3.746757383,
+              "cost": 2.771757383,
               "chosen": true
             }
           ],
@@ -4053,7 +4221,7 @@ explain delete from t0 where t0.a<3	{
             "ranges": ["(NULL) < (a) < (3)"]
           },
           "rows_for_plan": 3,
-          "cost_for_plan": 3.746757383,
+          "cost_for_plan": 2.771757383,
           "chosen": true
         }
       }
@@ -4156,7 +4324,7 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                 "range_analysis": {
                   "table_scan": {
                     "rows": 10,
-                    "cost": 6.021972656
+                    "cost": 3.510986328
                   },
                   "potential_range_indexes": [
                     {
@@ -4167,7 +4335,7 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                   ],
                   "best_covering_index_scan": {
                     "index": "a",
-                    "cost": 3.005857945,
+                    "cost": 2.755857945,
                     "chosen": true
                   },
                   "setup_range_conditions": [],
@@ -4180,7 +4348,7 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                         "using_mrr": false,
                         "index_only": true,
                         "rows": 3,
-                        "cost": 0.746757383,
+                        "cost": 1.196757383,
                         "chosen": true
                       }
                     ],
@@ -4201,7 +4369,7 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                       "ranges": ["(NULL) < (a) < (3)"]
                     },
                     "rows_for_plan": 3,
-                    "cost_for_plan": 0.746757383,
+                    "cost_for_plan": 1.196757383,
                     "chosen": true
                   }
                 }
@@ -4221,7 +4389,7 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                 "range_analysis": {
                   "table_scan": {
                     "rows": 10,
-                    "cost": 6.021972656
+                    "cost": 3.510986328
                   },
                   "potential_range_indexes": [
                     {
@@ -4232,7 +4400,7 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                   ],
                   "best_covering_index_scan": {
                     "index": "a",
-                    "cost": 3.005857945,
+                    "cost": 2.755857945,
                     "chosen": true
                   },
                   "setup_range_conditions": [],
@@ -4245,7 +4413,7 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                         "using_mrr": false,
                         "index_only": true,
                         "rows": 3,
-                        "cost": 0.746757383,
+                        "cost": 1.196757383,
                         "chosen": true
                       }
                     ],
@@ -4266,7 +4434,7 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                       "ranges": ["(NULL) < (a) < (3)"]
                     },
                     "rows_for_plan": 3,
-                    "cost_for_plan": 0.746757383,
+                    "cost_for_plan": 1.196757383,
                     "chosen": true
                   }
                 }
@@ -4291,18 +4459,23 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                   {
                     "best_access_path": {
                       "table": "t0",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "range",
-                          "resulting_rows": 3,
-                          "cost": 0.746757383,
+                          "rows": 3,
+                          "rows_after_scan": 3,
+                          "rows_after_filter": 3,
+                          "cost": 1.196757383,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "range",
                         "records": 3,
-                        "cost": 0.746757383,
+                        "cost": 1.196757383,
                         "uses_join_buffering": false
                       }
                     }
@@ -4310,18 +4483,23 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "range",
-                          "resulting_rows": 3,
-                          "cost": 0.746757383,
+                          "rows": 3,
+                          "rows_after_scan": 3,
+                          "rows_after_filter": 3,
+                          "cost": 1.196757383,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "range",
                         "records": 3,
-                        "cost": 0.746757383,
+                        "cost": 1.196757383,
                         "uses_join_buffering": false
                       }
                     }
@@ -4332,7 +4510,7 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                 "plan_prefix": [],
                 "table": "t0",
                 "rows_for_plan": 3,
-                "cost_for_plan": 1.346757383,
+                "cost_for_plan": 1.196757383,
                 "rest_of_plan": [
                   {
                     "plan_prefix": ["t0"],
@@ -4340,6 +4518,9 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                       {
                         "best_access_path": {
                           "table": "t1",
+                          "plan_details": {
+                            "record_count": 3
+                          },
                           "considered_access_paths": [
                             {
                               "access_type": "ref",
@@ -4347,10 +4528,7 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                               "used_range_estimates": false,
                               "reason": "not better than ref estimates",
                               "rows": 1,
-                              "cond_check_cost": 1.200585794,
-                              "startup_cost": 0,
-                              "rows_after_filter": 1,
-                              "cost": 3.601757383,
+                              "cost": 2.176757383,
                               "chosen": true
                             },
                             {
@@ -4362,7 +4540,7 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                           "chosen_access_method": {
                             "type": "ref",
                             "records": 1,
-                            "cost": 3.601757383,
+                            "cost": 2.176757383,
                             "uses_join_buffering": false
                           }
                         }
@@ -4373,7 +4551,7 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                     "plan_prefix": ["t0"],
                     "table": "t1",
                     "rows_for_plan": 3,
-                    "cost_for_plan": 5.548514767
+                    "cost_for_plan": 3.373514767
                   }
                 ]
               },
@@ -4381,7 +4559,7 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                 "plan_prefix": [],
                 "table": "t1",
                 "rows_for_plan": 3,
-                "cost_for_plan": 1.346757383,
+                "cost_for_plan": 1.196757383,
                 "rest_of_plan": [
                   {
                     "plan_prefix": ["t1"],
@@ -4389,6 +4567,9 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                       {
                         "best_access_path": {
                           "table": "t0",
+                          "plan_details": {
+                            "record_count": 3
+                          },
                           "considered_access_paths": [
                             {
                               "access_type": "ref",
@@ -4397,10 +4578,7 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                               "used_range_estimates": false,
                               "reason": "not better than ref estimates",
                               "rows": 2,
-                              "cond_check_cost": 1.401171589,
-                              "startup_cost": 0,
-                              "rows_after_filter": 2,
-                              "cost": 4.203514767,
+                              "cost": 2.853514767,
                               "chosen": true
                             },
                             {
@@ -4412,7 +4590,7 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                           "chosen_access_method": {
                             "type": "ref",
                             "records": 2,
-                            "cost": 4.203514767,
+                            "cost": 2.853514767,
                             "uses_join_buffering": false
                           }
                         }
@@ -4423,10 +4601,10 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
                     "plan_prefix": ["t1"],
                     "table": "t0",
                     "rows_for_plan": 6,
-                    "cost_for_plan": 6.75027215,
+                    "cost_for_plan": 4.05027215,
                     "pruned_by_cost": true,
-                    "current_cost": 6.75027215,
-                    "best_cost": 5.548514767
+                    "current_cost": 4.05027215,
+                    "best_cost": 3.373614767
                   }
                 ]
               }
@@ -4434,7 +4612,8 @@ explain delete t0,t1 from t0, t1 where t0.a=t1.a and t1.a<3	{
           },
           {
             "best_join_order": ["t0", "t1"],
-            "cost": 5.547514767
+            "rows": 3,
+            "cost": 3.373514767
           },
           {
             "substitute_best_equal": {
@@ -4543,7 +4722,8 @@ explain select * from (select rand() from t1)q	{
                       "table": "t1",
                       "table_scan": {
                         "rows": 3,
-                        "cost": 2.005126953
+                        "read_cost": 1.002563477,
+                        "read_and_compare_cost": 1.752563477
                       }
                     }
                   ]
@@ -4556,18 +4736,24 @@ explain select * from (select rand() from t1)q	{
                         {
                           "best_access_path": {
                             "table": "t1",
+                            "plan_details": {
+                              "record_count": 1
+                            },
                             "considered_access_paths": [
                               {
                                 "access_type": "scan",
-                                "resulting_rows": 3,
-                                "cost": 2.605126953,
+                                "rows": 3,
+                                "rows_after_scan": 3,
+                                "rows_after_filter": 3,
+                                "cost": 1.752563477,
+                                "index_only": false,
                                 "chosen": true
                               }
                             ],
                             "chosen_access_method": {
                               "type": "scan",
                               "records": 3,
-                              "cost": 2.605126953,
+                              "cost": 1.752563477,
                               "uses_join_buffering": false
                             }
                           }
@@ -4578,13 +4764,14 @@ explain select * from (select rand() from t1)q	{
                       "plan_prefix": [],
                       "table": "t1",
                       "rows_for_plan": 3,
-                      "cost_for_plan": 3.205126953
+                      "cost_for_plan": 1.752563477
                     }
                   ]
                 },
                 {
                   "best_join_order": ["t1"],
-                  "cost": 3.204126953
+                  "rows": 3,
+                  "cost": 1.752563477
                 },
                 {
                   "attaching_conditions_to_tables": {
@@ -4616,7 +4803,8 @@ explain select * from (select rand() from t1)q	{
                 "table": "<derived2>",
                 "table_scan": {
                   "rows": 3,
-                  "cost": 3
+                  "read_cost": 3,
+                  "read_and_compare_cost": 3.75
                 }
               }
             ]
@@ -4629,18 +4817,24 @@ explain select * from (select rand() from t1)q	{
                   {
                     "best_access_path": {
                       "table": "<derived2>",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 3,
-                          "cost": 3.6,
+                          "rows": 3,
+                          "rows_after_scan": 3,
+                          "rows_after_filter": 3,
+                          "cost": 3.75,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 3,
-                        "cost": 3.6,
+                        "cost": 3.75,
                         "uses_join_buffering": false
                       }
                     }
@@ -4651,13 +4845,14 @@ explain select * from (select rand() from t1)q	{
                 "plan_prefix": [],
                 "table": "<derived2>",
                 "rows_for_plan": 3,
-                "cost_for_plan": 4.2
+                "cost_for_plan": 3.75
               }
             ]
           },
           {
             "best_join_order": ["<derived2>"],
-            "cost": 4.199
+            "rows": 3,
+            "cost": 3.75
           },
           {
             "attaching_conditions_to_tables": {
@@ -4809,21 +5004,24 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
                 "table": "t1",
                 "table_scan": {
                   "rows": 3,
-                  "cost": 2.005126953
+                  "read_cost": 1.002563477,
+                  "read_and_compare_cost": 1.752563477
                 }
               },
               {
                 "table": "t_inner_1",
                 "table_scan": {
                   "rows": 3,
-                  "cost": 2.005126953
+                  "read_cost": 1.002563477,
+                  "read_and_compare_cost": 1.752563477
                 }
               },
               {
                 "table": "t_inner_2",
                 "table_scan": {
                   "rows": 3,
-                  "cost": 2.005126953
+                  "read_cost": 1.002563477,
+                  "read_and_compare_cost": 1.752563477
                 }
               }
             ]
@@ -4844,18 +5042,24 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
                         {
                           "best_access_path": {
                             "table": "t_inner_1",
+                            "plan_details": {
+                              "record_count": 1
+                            },
                             "considered_access_paths": [
                               {
                                 "access_type": "scan",
-                                "resulting_rows": 3,
-                                "cost": 2.605126953,
+                                "rows": 3,
+                                "rows_after_scan": 3,
+                                "rows_after_filter": 3,
+                                "cost": 1.752563477,
+                                "index_only": false,
                                 "chosen": true
                               }
                             ],
                             "chosen_access_method": {
                               "type": "scan",
                               "records": 3,
-                              "cost": 2.605126953,
+                              "cost": 1.752563477,
                               "uses_join_buffering": false
                             }
                           }
@@ -4863,18 +5067,24 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
                         {
                           "best_access_path": {
                             "table": "t_inner_2",
+                            "plan_details": {
+                              "record_count": 1
+                            },
                             "considered_access_paths": [
                               {
                                 "access_type": "scan",
-                                "resulting_rows": 3,
-                                "cost": 2.605126953,
+                                "rows": 3,
+                                "rows_after_scan": 3,
+                                "rows_after_filter": 3,
+                                "cost": 1.752563477,
+                                "index_only": false,
                                 "chosen": true
                               }
                             ],
                             "chosen_access_method": {
                               "type": "scan",
                               "records": 3,
-                              "cost": 2.605126953,
+                              "cost": 1.752563477,
                               "uses_join_buffering": false
                             }
                           }
@@ -4885,7 +5095,7 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
                       "plan_prefix": [],
                       "table": "t_inner_1",
                       "rows_for_plan": 3,
-                      "cost_for_plan": 3.205126953,
+                      "cost_for_plan": 1.752563477,
                       "rest_of_plan": [
                         {
                           "plan_prefix": ["t_inner_1"],
@@ -4893,18 +5103,24 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
                             {
                               "best_access_path": {
                                 "table": "t_inner_2",
+                                "plan_details": {
+                                  "record_count": 3
+                                },
                                 "considered_access_paths": [
                                   {
-                                    "access_type": "scan",
-                                    "resulting_rows": 3,
-                                    "cost": 4.405126953,
+                                    "access_type": "scan_with_join_cache",
+                                    "rows": 3,
+                                    "rows_after_scan": 3,
+                                    "rows_after_filter": 3,
+                                    "cost": 4.002563477,
+                                    "index_only": false,
                                     "chosen": true
                                   }
                                 ],
                                 "chosen_access_method": {
                                   "type": "scan",
                                   "records": 3,
-                                  "cost": 4.405126953,
+                                  "cost": 4.002563477,
                                   "uses_join_buffering": true
                                 }
                               }
@@ -4915,7 +5131,7 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
                           "plan_prefix": ["t_inner_1"],
                           "table": "t_inner_2",
                           "rows_for_plan": 9,
-                          "cost_for_plan": 9.410253906
+                          "cost_for_plan": 5.755126953
                         }
                       ]
                     },
@@ -4923,7 +5139,7 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
                       "plan_prefix": [],
                       "table": "t_inner_2",
                       "rows_for_plan": 3,
-                      "cost_for_plan": 3.205126953,
+                      "cost_for_plan": 1.752563477,
                       "pruned_by_heuristic": true
                     }
                   ]
@@ -4939,18 +5155,24 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 3,
-                          "cost": 2.605126953,
+                          "rows": 3,
+                          "rows_after_scan": 3,
+                          "rows_after_filter": 3,
+                          "cost": 1.752563477,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 3,
-                        "cost": 2.605126953,
+                        "cost": 1.752563477,
                         "uses_join_buffering": false
                       }
                     }
@@ -4958,18 +5180,24 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
                   {
                     "best_access_path": {
                       "table": "t_inner_1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 3,
-                          "cost": 2.605126953,
+                          "rows": 3,
+                          "rows_after_scan": 3,
+                          "rows_after_filter": 3,
+                          "cost": 1.752563477,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 3,
-                        "cost": 2.605126953,
+                        "cost": 1.752563477,
                         "uses_join_buffering": false
                       }
                     }
@@ -4977,18 +5205,24 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
                   {
                     "best_access_path": {
                       "table": "t_inner_2",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 3,
-                          "cost": 2.605126953,
+                          "rows": 3,
+                          "rows_after_scan": 3,
+                          "rows_after_filter": 3,
+                          "cost": 1.752563477,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 3,
-                        "cost": 2.605126953,
+                        "cost": 1.752563477,
                         "uses_join_buffering": false
                       }
                     }
@@ -4999,7 +5233,7 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
                 "plan_prefix": [],
                 "table": "t1",
                 "rows_for_plan": 3,
-                "cost_for_plan": 3.205126953,
+                "cost_for_plan": 1.752563477,
                 "semijoin_strategy_choice": [],
                 "rest_of_plan": [
                   {
@@ -5008,18 +5242,24 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
                       {
                         "best_access_path": {
                           "table": "t_inner_1",
+                          "plan_details": {
+                            "record_count": 3
+                          },
                           "considered_access_paths": [
                             {
-                              "access_type": "scan",
-                              "resulting_rows": 3,
-                              "cost": 4.405126953,
+                              "access_type": "scan_with_join_cache",
+                              "rows": 3,
+                              "rows_after_scan": 3,
+                              "rows_after_filter": 3,
+                              "cost": 4.002563477,
+                              "index_only": false,
                               "chosen": true
                             }
                           ],
                           "chosen_access_method": {
                             "type": "scan",
                             "records": 3,
-                            "cost": 4.405126953,
+                            "cost": 4.002563477,
                             "uses_join_buffering": true
                           }
                         }
@@ -5027,18 +5267,24 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
                       {
                         "best_access_path": {
                           "table": "t_inner_2",
+                          "plan_details": {
+                            "record_count": 3
+                          },
                           "considered_access_paths": [
                             {
-                              "access_type": "scan",
-                              "resulting_rows": 3,
-                              "cost": 4.405126953,
+                              "access_type": "scan_with_join_cache",
+                              "rows": 3,
+                              "rows_after_scan": 3,
+                              "rows_after_filter": 3,
+                              "cost": 4.002563477,
+                              "index_only": false,
                               "chosen": true
                             }
                           ],
                           "chosen_access_method": {
                             "type": "scan",
                             "records": 3,
-                            "cost": 4.405126953,
+                            "cost": 4.002563477,
                             "uses_join_buffering": true
                           }
                         }
@@ -5049,7 +5295,7 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
                     "plan_prefix": ["t1"],
                     "table": "t_inner_1",
                     "rows_for_plan": 9,
-                    "cost_for_plan": 9.410253906,
+                    "cost_for_plan": 5.755126953,
                     "semijoin_strategy_choice": [],
                     "rest_of_plan": [
                       {
@@ -5058,18 +5304,24 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
                           {
                             "best_access_path": {
                               "table": "t_inner_2",
+                              "plan_details": {
+                                "record_count": 9
+                              },
                               "considered_access_paths": [
                                 {
-                                  "access_type": "scan",
-                                  "resulting_rows": 3,
-                                  "cost": 8.005126953,
+                                  "access_type": "scan_with_join_cache",
+                                  "rows": 3,
+                                  "rows_after_scan": 3,
+                                  "rows_after_filter": 3,
+                                  "cost": 9.852563477,
+                                  "index_only": false,
                                   "chosen": true
                                 }
                               ],
                               "chosen_access_method": {
                                 "type": "scan",
                                 "records": 3,
-                                "cost": 8.005126953,
+                                "cost": 9.852563477,
                                 "uses_join_buffering": true
                               }
                             }
@@ -5080,22 +5332,25 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
                         "plan_prefix": ["t1", "t_inner_1"],
                         "table": "t_inner_2",
                         "rows_for_plan": 27,
-                        "cost_for_plan": 22.81538086,
+                        "cost_for_plan": 15.60769043,
                         "semijoin_strategy_choice": [
                           {
                             "strategy": "FirstMatch",
                             "records": 3,
-                            "read_time": 48.86665039
+                            "cost": 22.7833252
                           },
                           {
                             "strategy": "SJ-Materialization",
                             "records": 3,
-                            "cost": 10.81538086
+                            "cost": 9.10769043
                           },
                           {
                             "strategy": "DuplicateWeedout",
                             "records": 3,
-                            "read_time": 27.31538086
+                            "dups_cost": 15.60769043,
+                            "write_cost": 1.45,
+                            "full_lookup_cost": 4.05,
+                            "total_cost": 21.10769043
                           },
                           {
                             "chosen_strategy": "SJ-Materialization"
@@ -5108,7 +5363,7 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
                     "plan_prefix": ["t1"],
                     "table": "t_inner_2",
                     "rows_for_plan": 9,
-                    "cost_for_plan": 9.410253906,
+                    "cost_for_plan": 5.755126953,
                     "semijoin_strategy_choice": [],
                     "pruned_by_heuristic": true
                   }
@@ -5118,7 +5373,7 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
                 "plan_prefix": [],
                 "table": "t_inner_1",
                 "rows_for_plan": 3,
-                "cost_for_plan": 3.205126953,
+                "cost_for_plan": 1.752563477,
                 "semijoin_strategy_choice": [],
                 "pruned_by_heuristic": true
               },
@@ -5126,7 +5381,7 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
                 "plan_prefix": [],
                 "table": "t_inner_2",
                 "rows_for_plan": 3,
-                "cost_for_plan": 3.205126953,
+                "cost_for_plan": 1.752563477,
                 "semijoin_strategy_choice": [],
                 "pruned_by_heuristic": true
               }
@@ -5149,7 +5404,8 @@ explain select * from t1 where a in (select t_inner_1.a from t1 t_inner_1, t1 t_
           },
           {
             "best_join_order": ["t1", "<subquery2>"],
-            "cost": 10.81438086
+            "rows": 3,
+            "cost": 9.10769043
           },
           {
             "substitute_best_equal": {
@@ -5201,11 +5457,11 @@ explain select * from t1 t_outer_1,t2 t_outer_2  where t_outer_1.a in (select t_
 t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t_outer_1	ALL	NULL	NULL	NULL	NULL	3	
-1	PRIMARY	t_inner_1	ALL	NULL	NULL	NULL	NULL	3	Using where; Start temporary; Using join buffer (flat, BNL join)
-1	PRIMARY	t_inner_2	ALL	NULL	NULL	NULL	NULL	9	End temporary; Using join buffer (incremental, BNL join)
-1	PRIMARY	t_inner_4	ALL	NULL	NULL	NULL	NULL	3	Start temporary; Using join buffer (incremental, BNL join)
+1	PRIMARY	t_inner_1	ALL	NULL	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	t_inner_2	ALL	NULL	NULL	NULL	NULL	9	FirstMatch(t_outer_1); Using join buffer (incremental, BNL join)
 1	PRIMARY	t_outer_2	ALL	NULL	NULL	NULL	NULL	9	Using join buffer (incremental, BNL join)
-1	PRIMARY	t_inner_3	ALL	NULL	NULL	NULL	NULL	9	Using where; End temporary; Using join buffer (incremental, BNL join)
+1	PRIMARY	t_inner_4	ALL	NULL	NULL	NULL	NULL	3	Using join buffer (incremental, BNL join)
+1	PRIMARY	t_inner_3	ALL	NULL	NULL	NULL	NULL	9	Using where; FirstMatch(t_outer_2); Using join buffer (incremental, BNL join)
 select * from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
 QUERY	TRACE	MISSING_BYTES_BEYOND_MAX_MEM_SIZE	INSUFFICIENT_PRIVILEGES
 explain select * from t1 t_outer_1,t2 t_outer_2  where t_outer_1.a in (select t_inner_1.a from t2 t_inner_2, t1 t_inner_1) and
@@ -5364,42 +5620,48 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                 "table": "t_outer_1",
                 "table_scan": {
                   "rows": 3,
-                  "cost": 2.005126953
+                  "read_cost": 1.002563477,
+                  "read_and_compare_cost": 1.752563477
                 }
               },
               {
                 "table": "t_outer_2",
                 "table_scan": {
                   "rows": 9,
-                  "cost": 2.015380859
+                  "read_cost": 1.00769043,
+                  "read_and_compare_cost": 3.25769043
                 }
               },
               {
                 "table": "t_inner_2",
                 "table_scan": {
                   "rows": 9,
-                  "cost": 2.015380859
+                  "read_cost": 1.00769043,
+                  "read_and_compare_cost": 3.25769043
                 }
               },
               {
                 "table": "t_inner_1",
                 "table_scan": {
                   "rows": 3,
-                  "cost": 2.005126953
+                  "read_cost": 1.002563477,
+                  "read_and_compare_cost": 1.752563477
                 }
               },
               {
                 "table": "t_inner_3",
                 "table_scan": {
                   "rows": 9,
-                  "cost": 2.015380859
+                  "read_cost": 1.00769043,
+                  "read_and_compare_cost": 3.25769043
                 }
               },
               {
                 "table": "t_inner_4",
                 "table_scan": {
                   "rows": 3,
-                  "cost": 2.005126953
+                  "read_cost": 1.002563477,
+                  "read_and_compare_cost": 1.752563477
                 }
               }
             ]
@@ -5427,18 +5689,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                   {
                     "best_access_path": {
                       "table": "t_outer_1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 3,
-                          "cost": 2.605126953,
+                          "rows": 3,
+                          "rows_after_scan": 3,
+                          "rows_after_filter": 3,
+                          "cost": 1.752563477,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 3,
-                        "cost": 2.605126953,
+                        "cost": 1.752563477,
                         "uses_join_buffering": false
                       }
                     }
@@ -5446,18 +5714,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                   {
                     "best_access_path": {
                       "table": "t_inner_1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 3,
-                          "cost": 2.605126953,
+                          "rows": 3,
+                          "rows_after_scan": 3,
+                          "rows_after_filter": 3,
+                          "cost": 1.752563477,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 3,
-                        "cost": 2.605126953,
+                        "cost": 1.752563477,
                         "uses_join_buffering": false
                       }
                     }
@@ -5465,18 +5739,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                   {
                     "best_access_path": {
                       "table": "t_inner_2",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 9,
-                          "cost": 3.815380859,
+                          "rows": 9,
+                          "rows_after_scan": 9,
+                          "rows_after_filter": 9,
+                          "cost": 3.25769043,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 9,
-                        "cost": 3.815380859,
+                        "cost": 3.25769043,
                         "uses_join_buffering": false
                       }
                     }
@@ -5484,18 +5764,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                   {
                     "best_access_path": {
                       "table": "t_outer_2",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 9,
-                          "cost": 3.815380859,
+                          "rows": 9,
+                          "rows_after_scan": 9,
+                          "rows_after_filter": 9,
+                          "cost": 3.25769043,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 9,
-                        "cost": 3.815380859,
+                        "cost": 3.25769043,
                         "uses_join_buffering": false
                       }
                     }
@@ -5503,18 +5789,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                   {
                     "best_access_path": {
                       "table": "t_inner_4",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 3,
-                          "cost": 2.605126953,
+                          "rows": 3,
+                          "rows_after_scan": 3,
+                          "rows_after_filter": 3,
+                          "cost": 1.752563477,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 3,
-                        "cost": 2.605126953,
+                        "cost": 1.752563477,
                         "uses_join_buffering": false
                       }
                     }
@@ -5522,18 +5814,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                   {
                     "best_access_path": {
                       "table": "t_inner_3",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 9,
-                          "cost": 3.815380859,
+                          "rows": 9,
+                          "rows_after_scan": 9,
+                          "rows_after_filter": 9,
+                          "cost": 3.25769043,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 9,
-                        "cost": 3.815380859,
+                        "cost": 3.25769043,
                         "uses_join_buffering": false
                       }
                     }
@@ -5544,7 +5842,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                 "plan_prefix": [],
                 "table": "t_outer_1",
                 "rows_for_plan": 3,
-                "cost_for_plan": 3.205126953,
+                "cost_for_plan": 1.752563477,
                 "semijoin_strategy_choice": [],
                 "rest_of_plan": [
                   {
@@ -5553,18 +5851,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                       {
                         "best_access_path": {
                           "table": "t_inner_1",
+                          "plan_details": {
+                            "record_count": 3
+                          },
                           "considered_access_paths": [
                             {
-                              "access_type": "scan",
-                              "resulting_rows": 3,
-                              "cost": 4.405126953,
+                              "access_type": "scan_with_join_cache",
+                              "rows": 3,
+                              "rows_after_scan": 3,
+                              "rows_after_filter": 3,
+                              "cost": 4.002563477,
+                              "index_only": false,
                               "chosen": true
                             }
                           ],
                           "chosen_access_method": {
                             "type": "scan",
                             "records": 3,
-                            "cost": 4.405126953,
+                            "cost": 4.002563477,
                             "uses_join_buffering": true
                           }
                         }
@@ -5572,18 +5876,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                       {
                         "best_access_path": {
                           "table": "t_inner_2",
+                          "plan_details": {
+                            "record_count": 3
+                          },
                           "considered_access_paths": [
                             {
-                              "access_type": "scan",
-                              "resulting_rows": 9,
-                              "cost": 9.215380859,
+                              "access_type": "scan_with_join_cache",
+                              "rows": 9,
+                              "rows_after_scan": 9,
+                              "rows_after_filter": 9,
+                              "cost": 10.00769043,
+                              "index_only": false,
                               "chosen": true
                             }
                           ],
                           "chosen_access_method": {
                             "type": "scan",
                             "records": 9,
-                            "cost": 9.215380859,
+                            "cost": 10.00769043,
                             "uses_join_buffering": true
                           }
                         }
@@ -5591,18 +5901,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                       {
                         "best_access_path": {
                           "table": "t_outer_2",
+                          "plan_details": {
+                            "record_count": 3
+                          },
                           "considered_access_paths": [
                             {
-                              "access_type": "scan",
-                              "resulting_rows": 9,
-                              "cost": 9.215380859,
+                              "access_type": "scan_with_join_cache",
+                              "rows": 9,
+                              "rows_after_scan": 9,
+                              "rows_after_filter": 9,
+                              "cost": 10.00769043,
+                              "index_only": false,
                               "chosen": true
                             }
                           ],
                           "chosen_access_method": {
                             "type": "scan",
                             "records": 9,
-                            "cost": 9.215380859,
+                            "cost": 10.00769043,
                             "uses_join_buffering": true
                           }
                         }
@@ -5610,18 +5926,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                       {
                         "best_access_path": {
                           "table": "t_inner_4",
+                          "plan_details": {
+                            "record_count": 3
+                          },
                           "considered_access_paths": [
                             {
-                              "access_type": "scan",
-                              "resulting_rows": 3,
-                              "cost": 4.405126953,
+                              "access_type": "scan_with_join_cache",
+                              "rows": 3,
+                              "rows_after_scan": 3,
+                              "rows_after_filter": 3,
+                              "cost": 4.002563477,
+                              "index_only": false,
                               "chosen": true
                             }
                           ],
                           "chosen_access_method": {
                             "type": "scan",
                             "records": 3,
-                            "cost": 4.405126953,
+                            "cost": 4.002563477,
                             "uses_join_buffering": true
                           }
                         }
@@ -5629,18 +5951,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                       {
                         "best_access_path": {
                           "table": "t_inner_3",
+                          "plan_details": {
+                            "record_count": 3
+                          },
                           "considered_access_paths": [
                             {
-                              "access_type": "scan",
-                              "resulting_rows": 9,
-                              "cost": 9.215380859,
+                              "access_type": "scan_with_join_cache",
+                              "rows": 9,
+                              "rows_after_scan": 9,
+                              "rows_after_filter": 9,
+                              "cost": 10.00769043,
+                              "index_only": false,
                               "chosen": true
                             }
                           ],
                           "chosen_access_method": {
                             "type": "scan",
                             "records": 9,
-                            "cost": 9.215380859,
+                            "cost": 10.00769043,
                             "uses_join_buffering": true
                           }
                         }
@@ -5651,7 +5979,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                     "plan_prefix": ["t_outer_1"],
                     "table": "t_outer_2",
                     "rows_for_plan": 27,
-                    "cost_for_plan": 17.82050781,
+                    "cost_for_plan": 11.76025391,
                     "semijoin_strategy_choice": [],
                     "rest_of_plan": [
                       {
@@ -5660,18 +5988,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                           {
                             "best_access_path": {
                               "table": "t_inner_2",
+                              "plan_details": {
+                                "record_count": 27
+                              },
                               "considered_access_paths": [
                                 {
-                                  "access_type": "scan",
-                                  "resulting_rows": 9,
-                                  "cost": 52.41538086,
+                                  "access_type": "scan_with_join_cache",
+                                  "rows": 9,
+                                  "rows_after_scan": 9,
+                                  "rows_after_filter": 9,
+                                  "cost": 76.15769043,
+                                  "index_only": false,
                                   "chosen": true
                                 }
                               ],
                               "chosen_access_method": {
                                 "type": "scan",
                                 "records": 9,
-                                "cost": 52.41538086,
+                                "cost": 76.15769043,
                                 "uses_join_buffering": true
                               }
                             }
@@ -5679,18 +6013,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                           {
                             "best_access_path": {
                               "table": "t_inner_1",
+                              "plan_details": {
+                                "record_count": 27
+                              },
                               "considered_access_paths": [
                                 {
-                                  "access_type": "scan",
-                                  "resulting_rows": 3,
-                                  "cost": 18.80512695,
+                                  "access_type": "scan_with_join_cache",
+                                  "rows": 3,
+                                  "rows_after_scan": 3,
+                                  "rows_after_filter": 3,
+                                  "cost": 26.05256348,
+                                  "index_only": false,
                                   "chosen": true
                                 }
                               ],
                               "chosen_access_method": {
                                 "type": "scan",
                                 "records": 3,
-                                "cost": 18.80512695,
+                                "cost": 26.05256348,
                                 "uses_join_buffering": true
                               }
                             }
@@ -5698,18 +6038,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                           {
                             "best_access_path": {
                               "table": "t_inner_4",
+                              "plan_details": {
+                                "record_count": 27
+                              },
                               "considered_access_paths": [
                                 {
-                                  "access_type": "scan",
-                                  "resulting_rows": 3,
-                                  "cost": 18.80512695,
+                                  "access_type": "scan_with_join_cache",
+                                  "rows": 3,
+                                  "rows_after_scan": 3,
+                                  "rows_after_filter": 3,
+                                  "cost": 26.05256348,
+                                  "index_only": false,
                                   "chosen": true
                                 }
                               ],
                               "chosen_access_method": {
                                 "type": "scan",
                                 "records": 3,
-                                "cost": 18.80512695,
+                                "cost": 26.05256348,
                                 "uses_join_buffering": true
                               }
                             }
@@ -5717,18 +6063,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                           {
                             "best_access_path": {
                               "table": "t_inner_3",
+                              "plan_details": {
+                                "record_count": 27
+                              },
                               "considered_access_paths": [
                                 {
-                                  "access_type": "scan",
-                                  "resulting_rows": 9,
-                                  "cost": 52.41538086,
+                                  "access_type": "scan_with_join_cache",
+                                  "rows": 9,
+                                  "rows_after_scan": 9,
+                                  "rows_after_filter": 9,
+                                  "cost": 76.15769043,
+                                  "index_only": false,
                                   "chosen": true
                                 }
                               ],
                               "chosen_access_method": {
                                 "type": "scan",
                                 "records": 9,
-                                "cost": 52.41538086,
+                                "cost": 76.15769043,
                                 "uses_join_buffering": true
                               }
                             }
@@ -5739,7 +6091,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                         "plan_prefix": ["t_outer_1", "t_outer_2"],
                         "table": "t_inner_1",
                         "rows_for_plan": 81,
-                        "cost_for_plan": 52.82563477,
+                        "cost_for_plan": 37.81281738,
                         "semijoin_strategy_choice": [],
                         "rest_of_plan": [
                           {
@@ -5748,18 +6100,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_inner_2",
+                                  "plan_details": {
+                                    "record_count": 81
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 9,
-                                      "cost": 149.6153809,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 9,
+                                      "rows_after_scan": 9,
+                                      "rows_after_filter": 9,
+                                      "cost": 258.4076904,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 9,
-                                    "cost": 149.6153809,
+                                    "cost": 258.4076904,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -5767,18 +6125,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_inner_4",
+                                  "plan_details": {
+                                    "record_count": 81
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 3,
-                                      "cost": 51.20512695,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 3,
+                                      "rows_after_scan": 3,
+                                      "rows_after_filter": 3,
+                                      "cost": 86.80256348,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 3,
-                                    "cost": 51.20512695,
+                                    "cost": 86.80256348,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -5786,18 +6150,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_inner_3",
+                                  "plan_details": {
+                                    "record_count": 81
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 9,
-                                      "cost": 149.6153809,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 9,
+                                      "rows_after_scan": 9,
+                                      "rows_after_filter": 9,
+                                      "cost": 258.4076904,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 9,
-                                    "cost": 149.6153809,
+                                    "cost": 258.4076904,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -5808,20 +6178,23 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             "plan_prefix": ["t_outer_1", "t_outer_2", "t_inner_1"],
                             "table": "t_inner_2",
                             "rows_for_plan": 729,
-                            "cost_for_plan": 348.2410156,
+                            "cost_for_plan": 296.2205078,
                             "semijoin_strategy_choice": [
                               {
                                 "strategy": "FirstMatch",
                                 "records": 27,
-                                "read_time": 721.2047852
+                                "cost": 322.9523926
                               },
                               {
                                 "strategy": "DuplicateWeedout",
                                 "records": 27,
-                                "read_time": 461.6410156
+                                "dups_cost": 296.2205078,
+                                "write_cost": 5.05,
+                                "full_lookup_cost": 109.35,
+                                "total_cost": 410.6205078
                               },
                               {
-                                "chosen_strategy": "DuplicateWeedout"
+                                "chosen_strategy": "FirstMatch"
                               }
                             ],
                             "rest_of_plan": [
@@ -5836,18 +6209,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_inner_4",
+                                      "plan_details": {
+                                        "record_count": 27
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 3,
-                                          "cost": 18.80512695,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 3,
+                                          "rows_after_scan": 3,
+                                          "rows_after_filter": 3,
+                                          "cost": 34.15256348,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 3,
-                                        "cost": 18.80512695,
+                                        "cost": 34.15256348,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -5855,18 +6234,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_inner_3",
+                                      "plan_details": {
+                                        "record_count": 27
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 9,
-                                          "cost": 52.41538086,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 9,
+                                          "rows_after_scan": 9,
+                                          "rows_after_filter": 9,
+                                          "cost": 100.4576904,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 9,
-                                        "cost": 52.41538086,
+                                        "cost": 100.4576904,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -5882,7 +6267,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_inner_4",
                                 "rows_for_plan": 81,
-                                "cost_for_plan": 496.6461426,
+                                "cost_for_plan": 357.1049561,
                                 "semijoin_strategy_choice": [],
                                 "rest_of_plan": [
                                   {
@@ -5897,18 +6282,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                       {
                                         "best_access_path": {
                                           "table": "t_inner_3",
+                                          "plan_details": {
+                                            "record_count": 81
+                                          },
                                           "considered_access_paths": [
                                             {
-                                              "access_type": "scan",
-                                              "resulting_rows": 9,
-                                              "cost": 149.6153809,
+                                              "access_type": "scan_with_join_cache",
+                                              "rows": 9,
+                                              "rows_after_scan": 9,
+                                              "rows_after_filter": 9,
+                                              "cost": 331.3076904,
+                                              "index_only": false,
                                               "chosen": true
                                             }
                                           ],
                                           "chosen_access_method": {
                                             "type": "scan",
                                             "records": 9,
-                                            "cost": 149.6153809,
+                                            "cost": 331.3076904,
                                             "uses_join_buffering": true
                                           }
                                         }
@@ -5925,20 +6316,23 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                     ],
                                     "table": "t_inner_3",
                                     "rows_for_plan": 729,
-                                    "cost_for_plan": 792.0615234,
+                                    "cost_for_plan": 688.4126465,
                                     "semijoin_strategy_choice": [
                                       {
                                         "strategy": "FirstMatch",
                                         "records": 27,
-                                        "read_time": 1165.025293
+                                        "cost": 634.1445312
                                       },
                                       {
                                         "strategy": "DuplicateWeedout",
                                         "records": 27,
-                                        "read_time": 905.4615234
+                                        "dups_cost": 688.4126465,
+                                        "write_cost": 5.05,
+                                        "full_lookup_cost": 109.35,
+                                        "total_cost": 802.8126465
                                       },
                                       {
-                                        "chosen_strategy": "DuplicateWeedout"
+                                        "chosen_strategy": "FirstMatch"
                                       }
                                     ]
                                   }
@@ -5953,7 +6347,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_inner_3",
                                 "rows_for_plan": 243,
-                                "cost_for_plan": 562.6563965,
+                                "cost_for_plan": 423.410083,
                                 "semijoin_strategy_choice": [],
                                 "pruned_by_heuristic": true
                               }
@@ -5963,7 +6357,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             "plan_prefix": ["t_outer_1", "t_outer_2", "t_inner_1"],
                             "table": "t_inner_4",
                             "rows_for_plan": 243,
-                            "cost_for_plan": 152.6307617,
+                            "cost_for_plan": 124.6153809,
                             "semijoin_strategy_choice": [],
                             "rest_of_plan": [
                               {
@@ -5977,18 +6371,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_inner_2",
+                                      "plan_details": {
+                                        "record_count": 243
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 9,
-                                          "cost": 441.2153809,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 9,
+                                          "rows_after_scan": 9,
+                                          "rows_after_filter": 9,
+                                          "cost": 878.0576904,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 9,
-                                        "cost": 441.2153809,
+                                        "cost": 878.0576904,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -5996,18 +6396,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_inner_3",
+                                      "plan_details": {
+                                        "record_count": 243
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 9,
-                                          "cost": 441.2153809,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 9,
+                                          "rows_after_scan": 9,
+                                          "rows_after_filter": 9,
+                                          "cost": 878.0576904,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 9,
-                                        "cost": 441.2153809,
+                                        "cost": 878.0576904,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -6023,11 +6429,11 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_inner_2",
                                 "rows_for_plan": 2187,
-                                "cost_for_plan": 1031.246143,
+                                "cost_for_plan": 1002.673071,
                                 "semijoin_strategy_choice": [],
                                 "pruned_by_cost": true,
-                                "current_cost": 1031.246143,
-                                "best_cost": 905.4615234
+                                "current_cost": 1002.673071,
+                                "best_cost": 634.1446312
                               },
                               {
                                 "plan_prefix": [
@@ -6038,11 +6444,11 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_inner_3",
                                 "rows_for_plan": 2187,
-                                "cost_for_plan": 1031.246143,
+                                "cost_for_plan": 1002.673071,
                                 "semijoin_strategy_choice": [],
                                 "pruned_by_cost": true,
-                                "current_cost": 1031.246143,
-                                "best_cost": 905.4615234
+                                "current_cost": 1002.673071,
+                                "best_cost": 634.1446312
                               }
                             ]
                           },
@@ -6050,7 +6456,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             "plan_prefix": ["t_outer_1", "t_outer_2", "t_inner_1"],
                             "table": "t_inner_3",
                             "rows_for_plan": 729,
-                            "cost_for_plan": 348.2410156,
+                            "cost_for_plan": 296.2205078,
                             "semijoin_strategy_choice": [],
                             "pruned_by_heuristic": "min_read_time"
                           }
@@ -6060,7 +6466,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                         "plan_prefix": ["t_outer_1", "t_outer_2"],
                         "table": "t_inner_2",
                         "rows_for_plan": 243,
-                        "cost_for_plan": 118.8358887,
+                        "cost_for_plan": 87.91794434,
                         "semijoin_strategy_choice": [],
                         "pruned_by_heuristic": true
                       },
@@ -6068,7 +6474,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                         "plan_prefix": ["t_outer_1", "t_outer_2"],
                         "table": "t_inner_4",
                         "rows_for_plan": 81,
-                        "cost_for_plan": 52.82563477,
+                        "cost_for_plan": 37.81281738,
                         "semijoin_strategy_choice": [],
                         "pruned_by_heuristic": true
                       },
@@ -6076,7 +6482,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                         "plan_prefix": ["t_outer_1", "t_outer_2"],
                         "table": "t_inner_3",
                         "rows_for_plan": 243,
-                        "cost_for_plan": 118.8358887,
+                        "cost_for_plan": 87.91794434,
                         "semijoin_strategy_choice": [],
                         "pruned_by_heuristic": true
                       }
@@ -6086,7 +6492,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                     "plan_prefix": ["t_outer_1"],
                     "table": "t_inner_1",
                     "rows_for_plan": 9,
-                    "cost_for_plan": 9.410253906,
+                    "cost_for_plan": 5.755126953,
                     "semijoin_strategy_choice": [],
                     "rest_of_plan": [
                       {
@@ -6095,18 +6501,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                           {
                             "best_access_path": {
                               "table": "t_inner_2",
+                              "plan_details": {
+                                "record_count": 9
+                              },
                               "considered_access_paths": [
                                 {
-                                  "access_type": "scan",
-                                  "resulting_rows": 9,
-                                  "cost": 20.01538086,
+                                  "access_type": "scan_with_join_cache",
+                                  "rows": 9,
+                                  "rows_after_scan": 9,
+                                  "rows_after_filter": 9,
+                                  "cost": 27.55769043,
+                                  "index_only": false,
                                   "chosen": true
                                 }
                               ],
                               "chosen_access_method": {
                                 "type": "scan",
                                 "records": 9,
-                                "cost": 20.01538086,
+                                "cost": 27.55769043,
                                 "uses_join_buffering": true
                               }
                             }
@@ -6114,18 +6526,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                           {
                             "best_access_path": {
                               "table": "t_outer_2",
+                              "plan_details": {
+                                "record_count": 9
+                              },
                               "considered_access_paths": [
                                 {
-                                  "access_type": "scan",
-                                  "resulting_rows": 9,
-                                  "cost": 20.01538086,
+                                  "access_type": "scan_with_join_cache",
+                                  "rows": 9,
+                                  "rows_after_scan": 9,
+                                  "rows_after_filter": 9,
+                                  "cost": 27.55769043,
+                                  "index_only": false,
                                   "chosen": true
                                 }
                               ],
                               "chosen_access_method": {
                                 "type": "scan",
                                 "records": 9,
-                                "cost": 20.01538086,
+                                "cost": 27.55769043,
                                 "uses_join_buffering": true
                               }
                             }
@@ -6133,18 +6551,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                           {
                             "best_access_path": {
                               "table": "t_inner_4",
+                              "plan_details": {
+                                "record_count": 9
+                              },
                               "considered_access_paths": [
                                 {
-                                  "access_type": "scan",
-                                  "resulting_rows": 3,
-                                  "cost": 8.005126953,
+                                  "access_type": "scan_with_join_cache",
+                                  "rows": 3,
+                                  "rows_after_scan": 3,
+                                  "rows_after_filter": 3,
+                                  "cost": 9.852563477,
+                                  "index_only": false,
                                   "chosen": true
                                 }
                               ],
                               "chosen_access_method": {
                                 "type": "scan",
                                 "records": 3,
-                                "cost": 8.005126953,
+                                "cost": 9.852563477,
                                 "uses_join_buffering": true
                               }
                             }
@@ -6152,18 +6576,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                           {
                             "best_access_path": {
                               "table": "t_inner_3",
+                              "plan_details": {
+                                "record_count": 9
+                              },
                               "considered_access_paths": [
                                 {
-                                  "access_type": "scan",
-                                  "resulting_rows": 9,
-                                  "cost": 20.01538086,
+                                  "access_type": "scan_with_join_cache",
+                                  "rows": 9,
+                                  "rows_after_scan": 9,
+                                  "rows_after_filter": 9,
+                                  "cost": 27.55769043,
+                                  "index_only": false,
                                   "chosen": true
                                 }
                               ],
                               "chosen_access_method": {
                                 "type": "scan",
                                 "records": 9,
-                                "cost": 20.01538086,
+                                "cost": 27.55769043,
                                 "uses_join_buffering": true
                               }
                             }
@@ -6174,7 +6604,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                         "plan_prefix": ["t_outer_1", "t_inner_1"],
                         "table": "t_outer_2",
                         "rows_for_plan": 81,
-                        "cost_for_plan": 45.62563477,
+                        "cost_for_plan": 33.31281738,
                         "semijoin_strategy_choice": [],
                         "rest_of_plan": [
                           {
@@ -6183,18 +6613,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_inner_2",
+                                  "plan_details": {
+                                    "record_count": 81
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 9,
-                                      "cost": 149.6153809,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 9,
+                                      "rows_after_scan": 9,
+                                      "rows_after_filter": 9,
+                                      "cost": 258.4076904,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 9,
-                                    "cost": 149.6153809,
+                                    "cost": 258.4076904,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -6202,18 +6638,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_inner_4",
+                                  "plan_details": {
+                                    "record_count": 81
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 3,
-                                      "cost": 51.20512695,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 3,
+                                      "rows_after_scan": 3,
+                                      "rows_after_filter": 3,
+                                      "cost": 86.80256348,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 3,
-                                    "cost": 51.20512695,
+                                    "cost": 86.80256348,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -6221,18 +6663,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_inner_3",
+                                  "plan_details": {
+                                    "record_count": 81
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 9,
-                                      "cost": 149.6153809,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 9,
+                                      "rows_after_scan": 9,
+                                      "rows_after_filter": 9,
+                                      "cost": 258.4076904,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 9,
-                                    "cost": 149.6153809,
+                                    "cost": 258.4076904,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -6243,12 +6691,15 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             "plan_prefix": ["t_outer_1", "t_inner_1", "t_outer_2"],
                             "table": "t_inner_2",
                             "rows_for_plan": 729,
-                            "cost_for_plan": 341.0410156,
+                            "cost_for_plan": 291.7205078,
                             "semijoin_strategy_choice": [
                               {
                                 "strategy": "DuplicateWeedout",
                                 "records": 27,
-                                "read_time": 454.4410156
+                                "dups_cost": 291.7205078,
+                                "write_cost": 5.05,
+                                "full_lookup_cost": 109.35,
+                                "total_cost": 406.1205078
                               },
                               {
                                 "chosen_strategy": "DuplicateWeedout"
@@ -6266,18 +6717,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_inner_4",
+                                      "plan_details": {
+                                        "record_count": 27
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 3,
-                                          "cost": 18.80512695,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 3,
+                                          "rows_after_scan": 3,
+                                          "rows_after_filter": 3,
+                                          "cost": 34.15256348,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 3,
-                                        "cost": 18.80512695,
+                                        "cost": 34.15256348,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -6285,18 +6742,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_inner_3",
+                                      "plan_details": {
+                                        "record_count": 27
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 9,
-                                          "cost": 52.41538086,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 9,
+                                          "rows_after_scan": 9,
+                                          "rows_after_filter": 9,
+                                          "cost": 100.4576904,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 9,
-                                        "cost": 52.41538086,
+                                        "cost": 100.4576904,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -6312,7 +6775,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_inner_4",
                                 "rows_for_plan": 81,
-                                "cost_for_plan": 489.4461426,
+                                "cost_for_plan": 440.2730713,
                                 "semijoin_strategy_choice": [],
                                 "rest_of_plan": [
                                   {
@@ -6327,18 +6790,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                       {
                                         "best_access_path": {
                                           "table": "t_inner_3",
+                                          "plan_details": {
+                                            "record_count": 81
+                                          },
                                           "considered_access_paths": [
                                             {
-                                              "access_type": "scan",
-                                              "resulting_rows": 9,
-                                              "cost": 149.6153809,
+                                              "access_type": "scan_with_join_cache",
+                                              "rows": 9,
+                                              "rows_after_scan": 9,
+                                              "rows_after_filter": 9,
+                                              "cost": 331.3076904,
+                                              "index_only": false,
                                               "chosen": true
                                             }
                                           ],
                                           "chosen_access_method": {
                                             "type": "scan",
                                             "records": 9,
-                                            "cost": 149.6153809,
+                                            "cost": 331.3076904,
                                             "uses_join_buffering": true
                                           }
                                         }
@@ -6355,22 +6824,28 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                     ],
                                     "table": "t_inner_3",
                                     "rows_for_plan": 729,
-                                    "cost_for_plan": 784.8615234,
+                                    "cost_for_plan": 771.5807617,
                                     "semijoin_strategy_choice": [
                                       {
                                         "strategy": "FirstMatch",
                                         "records": 27,
-                                        "read_time": 1157.825293
+                                        "cost": 717.3126465
                                       },
                                       {
                                         "strategy": "DuplicateWeedout",
                                         "records": 27,
-                                        "read_time": 898.2615234
+                                        "dups_cost": 771.5807617,
+                                        "write_cost": 5.05,
+                                        "full_lookup_cost": 109.35,
+                                        "total_cost": 885.9807617
                                       },
                                       {
-                                        "chosen_strategy": "DuplicateWeedout"
+                                        "chosen_strategy": "FirstMatch"
                                       }
-                                    ]
+                                    ],
+                                    "pruned_by_cost": true,
+                                    "current_cost": 717.3126465,
+                                    "best_cost": 634.1446312
                                   }
                                 ]
                               },
@@ -6383,7 +6858,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_inner_3",
                                 "rows_for_plan": 243,
-                                "cost_for_plan": 555.4563965,
+                                "cost_for_plan": 506.5781982,
                                 "semijoin_strategy_choice": [],
                                 "pruned_by_heuristic": true
                               }
@@ -6393,7 +6868,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             "plan_prefix": ["t_outer_1", "t_inner_1", "t_outer_2"],
                             "table": "t_inner_4",
                             "rows_for_plan": 243,
-                            "cost_for_plan": 145.4307617,
+                            "cost_for_plan": 120.1153809,
                             "semijoin_strategy_choice": [],
                             "rest_of_plan": [
                               {
@@ -6407,18 +6882,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_inner_2",
+                                      "plan_details": {
+                                        "record_count": 243
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 9,
-                                          "cost": 441.2153809,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 9,
+                                          "rows_after_scan": 9,
+                                          "rows_after_filter": 9,
+                                          "cost": 878.0576904,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 9,
-                                        "cost": 441.2153809,
+                                        "cost": 878.0576904,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -6426,18 +6907,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_inner_3",
+                                      "plan_details": {
+                                        "record_count": 243
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 9,
-                                          "cost": 441.2153809,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 9,
+                                          "rows_after_scan": 9,
+                                          "rows_after_filter": 9,
+                                          "cost": 878.0576904,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 9,
-                                        "cost": 441.2153809,
+                                        "cost": 878.0576904,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -6453,11 +6940,11 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_inner_2",
                                 "rows_for_plan": 2187,
-                                "cost_for_plan": 1024.046143,
+                                "cost_for_plan": 998.1730713,
                                 "semijoin_strategy_choice": [],
                                 "pruned_by_cost": true,
-                                "current_cost": 1024.046143,
-                                "best_cost": 898.2615234
+                                "current_cost": 998.1730713,
+                                "best_cost": 634.1446312
                               },
                               {
                                 "plan_prefix": [
@@ -6468,11 +6955,11 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_inner_3",
                                 "rows_for_plan": 2187,
-                                "cost_for_plan": 1024.046143,
+                                "cost_for_plan": 998.1730713,
                                 "semijoin_strategy_choice": [],
                                 "pruned_by_cost": true,
-                                "current_cost": 1024.046143,
-                                "best_cost": 898.2615234
+                                "current_cost": 998.1730713,
+                                "best_cost": 634.1446312
                               }
                             ]
                           },
@@ -6480,7 +6967,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             "plan_prefix": ["t_outer_1", "t_inner_1", "t_outer_2"],
                             "table": "t_inner_3",
                             "rows_for_plan": 729,
-                            "cost_for_plan": 341.0410156,
+                            "cost_for_plan": 291.7205078,
                             "semijoin_strategy_choice": [],
                             "pruned_by_heuristic": "min_read_time"
                           }
@@ -6490,20 +6977,23 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                         "plan_prefix": ["t_outer_1", "t_inner_1"],
                         "table": "t_inner_2",
                         "rows_for_plan": 81,
-                        "cost_for_plan": 45.62563477,
+                        "cost_for_plan": 33.31281738,
                         "semijoin_strategy_choice": [
                           {
                             "strategy": "FirstMatch",
                             "records": 3,
-                            "read_time": 81.35893555
+                            "cost": 36.32946777
                           },
                           {
                             "strategy": "DuplicateWeedout",
                             "records": 3,
-                            "read_time": 58.22563477
+                            "dups_cost": 33.31281738,
+                            "write_cost": 1.45,
+                            "full_lookup_cost": 12.15,
+                            "total_cost": 46.91281738
                           },
                           {
-                            "chosen_strategy": "DuplicateWeedout"
+                            "chosen_strategy": "FirstMatch"
                           }
                         ],
                         "rest_of_plan": [
@@ -6513,18 +7003,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_outer_2",
+                                  "plan_details": {
+                                    "record_count": 3
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 9,
-                                      "cost": 9.215380859,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 9,
+                                      "rows_after_scan": 9,
+                                      "rows_after_filter": 9,
+                                      "cost": 12.70769043,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 9,
-                                    "cost": 9.215380859,
+                                    "cost": 12.70769043,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -6532,18 +7028,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_inner_4",
+                                  "plan_details": {
+                                    "record_count": 3
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 3,
-                                      "cost": 4.405126953,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 3,
+                                      "rows_after_scan": 3,
+                                      "rows_after_filter": 3,
+                                      "cost": 4.902563477,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 3,
-                                    "cost": 4.405126953,
+                                    "cost": 4.902563477,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -6551,18 +7053,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_inner_3",
+                                  "plan_details": {
+                                    "record_count": 3
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 9,
-                                      "cost": 9.215380859,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 9,
+                                      "rows_after_scan": 9,
+                                      "rows_after_filter": 9,
+                                      "cost": 12.70769043,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 9,
-                                    "cost": 9.215380859,
+                                    "cost": 12.70769043,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -6573,7 +7081,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             "plan_prefix": ["t_outer_1", "t_inner_1", "t_inner_2"],
                             "table": "t_outer_2",
                             "rows_for_plan": 27,
-                            "cost_for_plan": 72.84101562,
+                            "cost_for_plan": 49.0371582,
                             "semijoin_strategy_choice": [],
                             "rest_of_plan": [
                               {
@@ -6587,18 +7095,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_inner_4",
+                                      "plan_details": {
+                                        "record_count": 27
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 3,
-                                          "cost": 18.80512695,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 3,
+                                          "rows_after_scan": 3,
+                                          "rows_after_filter": 3,
+                                          "cost": 34.15256348,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 3,
-                                        "cost": 18.80512695,
+                                        "cost": 34.15256348,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -6606,18 +7120,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_inner_3",
+                                      "plan_details": {
+                                        "record_count": 27
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 9,
-                                          "cost": 52.41538086,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 9,
+                                          "rows_after_scan": 9,
+                                          "rows_after_filter": 9,
+                                          "cost": 100.4576904,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 9,
-                                        "cost": 52.41538086,
+                                        "cost": 100.4576904,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -6633,7 +7153,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_inner_4",
                                 "rows_for_plan": 81,
-                                "cost_for_plan": 107.8461426,
+                                "cost_for_plan": 83.18972168,
                                 "semijoin_strategy_choice": [],
                                 "rest_of_plan": [
                                   {
@@ -6648,18 +7168,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                       {
                                         "best_access_path": {
                                           "table": "t_inner_3",
+                                          "plan_details": {
+                                            "record_count": 81
+                                          },
                                           "considered_access_paths": [
                                             {
-                                              "access_type": "scan",
-                                              "resulting_rows": 9,
-                                              "cost": 149.6153809,
+                                              "access_type": "scan_with_join_cache",
+                                              "rows": 9,
+                                              "rows_after_scan": 9,
+                                              "rows_after_filter": 9,
+                                              "cost": 331.3076904,
+                                              "index_only": false,
                                               "chosen": true
                                             }
                                           ],
                                           "chosen_access_method": {
                                             "type": "scan",
                                             "records": 9,
-                                            "cost": 149.6153809,
+                                            "cost": 331.3076904,
                                             "uses_join_buffering": true
                                           }
                                         }
@@ -6676,20 +7202,23 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                     ],
                                     "table": "t_inner_3",
                                     "rows_for_plan": 729,
-                                    "cost_for_plan": 403.2615234,
+                                    "cost_for_plan": 414.4974121,
                                     "semijoin_strategy_choice": [
                                       {
                                         "strategy": "FirstMatch",
                                         "records": 27,
-                                        "read_time": 776.225293
+                                        "cost": 360.2292969
                                       },
                                       {
                                         "strategy": "DuplicateWeedout",
                                         "records": 27,
-                                        "read_time": 516.6615234
+                                        "dups_cost": 414.4974121,
+                                        "write_cost": 5.05,
+                                        "full_lookup_cost": 109.35,
+                                        "total_cost": 528.8974121
                                       },
                                       {
-                                        "chosen_strategy": "DuplicateWeedout"
+                                        "chosen_strategy": "FirstMatch"
                                       }
                                     ]
                                   }
@@ -6704,7 +7233,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_inner_3",
                                 "rows_for_plan": 243,
-                                "cost_for_plan": 173.8563965,
+                                "cost_for_plan": 149.4948486,
                                 "semijoin_strategy_choice": [],
                                 "pruned_by_heuristic": true
                               }
@@ -6714,7 +7243,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             "plan_prefix": ["t_outer_1", "t_inner_1", "t_inner_2"],
                             "table": "t_inner_4",
                             "rows_for_plan": 9,
-                            "cost_for_plan": 64.43076172,
+                            "cost_for_plan": 41.23203125,
                             "semijoin_strategy_choice": [],
                             "rest_of_plan": [
                               {
@@ -6728,18 +7257,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_outer_2",
+                                      "plan_details": {
+                                        "record_count": 9
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 9,
-                                          "cost": 20.01538086,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 9,
+                                          "rows_after_scan": 9,
+                                          "rows_after_filter": 9,
+                                          "cost": 35.65769043,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 9,
-                                        "cost": 20.01538086,
+                                        "cost": 35.65769043,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -6747,18 +7282,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_inner_3",
+                                      "plan_details": {
+                                        "record_count": 9
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 9,
-                                          "cost": 20.01538086,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 9,
+                                          "rows_after_scan": 9,
+                                          "rows_after_filter": 9,
+                                          "cost": 35.65769043,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 9,
-                                        "cost": 20.01538086,
+                                        "cost": 35.65769043,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -6774,7 +7315,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_outer_2",
                                 "rows_for_plan": 81,
-                                "cost_for_plan": 100.6461426,
+                                "cost_for_plan": 76.88972168,
                                 "semijoin_strategy_choice": [],
                                 "rest_of_plan": [
                                   {
@@ -6789,18 +7330,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                       {
                                         "best_access_path": {
                                           "table": "t_inner_3",
+                                          "plan_details": {
+                                            "record_count": 81
+                                          },
                                           "considered_access_paths": [
                                             {
-                                              "access_type": "scan",
-                                              "resulting_rows": 9,
-                                              "cost": 149.6153809,
+                                              "access_type": "scan_with_join_cache",
+                                              "rows": 9,
+                                              "rows_after_scan": 9,
+                                              "rows_after_filter": 9,
+                                              "cost": 331.3076904,
+                                              "index_only": false,
                                               "chosen": true
                                             }
                                           ],
                                           "chosen_access_method": {
                                             "type": "scan",
                                             "records": 9,
-                                            "cost": 149.6153809,
+                                            "cost": 331.3076904,
                                             "uses_join_buffering": true
                                           }
                                         }
@@ -6817,17 +7364,23 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                     ],
                                     "table": "t_inner_3",
                                     "rows_for_plan": 729,
-                                    "cost_for_plan": 396.0615234,
+                                    "cost_for_plan": 408.1974121,
                                     "semijoin_strategy_choice": [
                                       {
                                         "strategy": "DuplicateWeedout",
                                         "records": 27,
-                                        "read_time": 509.4615234
+                                        "dups_cost": 408.1974121,
+                                        "write_cost": 5.05,
+                                        "full_lookup_cost": 109.35,
+                                        "total_cost": 522.5974121
                                       },
                                       {
                                         "chosen_strategy": "DuplicateWeedout"
                                       }
-                                    ]
+                                    ],
+                                    "pruned_by_cost": true,
+                                    "current_cost": 522.5974121,
+                                    "best_cost": 360.2293969
                                   }
                                 ]
                               },
@@ -6840,7 +7393,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_inner_3",
                                 "rows_for_plan": 81,
-                                "cost_for_plan": 100.6461426,
+                                "cost_for_plan": 76.88972168,
                                 "semijoin_strategy_choice": [],
                                 "pruned_by_heuristic": true
                               }
@@ -6850,7 +7403,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             "plan_prefix": ["t_outer_1", "t_inner_1", "t_inner_2"],
                             "table": "t_inner_3",
                             "rows_for_plan": 27,
-                            "cost_for_plan": 72.84101562,
+                            "cost_for_plan": 49.0371582,
                             "semijoin_strategy_choice": [],
                             "pruned_by_heuristic": true
                           }
@@ -6860,7 +7413,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                         "plan_prefix": ["t_outer_1", "t_inner_1"],
                         "table": "t_inner_4",
                         "rows_for_plan": 27,
-                        "cost_for_plan": 22.81538086,
+                        "cost_for_plan": 15.60769043,
                         "semijoin_strategy_choice": [],
                         "rest_of_plan": [
                           {
@@ -6869,18 +7422,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_outer_2",
+                                  "plan_details": {
+                                    "record_count": 27
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 9,
-                                      "cost": 52.41538086,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 9,
+                                      "rows_after_scan": 9,
+                                      "rows_after_filter": 9,
+                                      "cost": 88.30769043,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 9,
-                                    "cost": 52.41538086,
+                                    "cost": 88.30769043,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -6888,18 +7447,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_inner_2",
+                                  "plan_details": {
+                                    "record_count": 27
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 9,
-                                      "cost": 52.41538086,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 9,
+                                      "rows_after_scan": 9,
+                                      "rows_after_filter": 9,
+                                      "cost": 88.30769043,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 9,
-                                    "cost": 52.41538086,
+                                    "cost": 88.30769043,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -6907,18 +7472,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_inner_3",
+                                  "plan_details": {
+                                    "record_count": 27
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 9,
-                                      "cost": 52.41538086,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 9,
+                                      "rows_after_scan": 9,
+                                      "rows_after_filter": 9,
+                                      "cost": 88.30769043,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 9,
-                                    "cost": 52.41538086,
+                                    "cost": 88.30769043,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -6929,7 +7500,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             "plan_prefix": ["t_outer_1", "t_inner_1", "t_inner_4"],
                             "table": "t_outer_2",
                             "rows_for_plan": 243,
-                            "cost_for_plan": 123.8307617,
+                            "cost_for_plan": 103.9153809,
                             "semijoin_strategy_choice": [],
                             "rest_of_plan": [
                               {
@@ -6943,18 +7514,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_inner_2",
+                                      "plan_details": {
+                                        "record_count": 243
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 9,
-                                          "cost": 441.2153809,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 9,
+                                          "rows_after_scan": 9,
+                                          "rows_after_filter": 9,
+                                          "cost": 878.0576904,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 9,
-                                        "cost": 441.2153809,
+                                        "cost": 878.0576904,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -6962,18 +7539,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_inner_3",
+                                      "plan_details": {
+                                        "record_count": 243
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 9,
-                                          "cost": 441.2153809,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 9,
+                                          "rows_after_scan": 9,
+                                          "rows_after_filter": 9,
+                                          "cost": 878.0576904,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 9,
-                                        "cost": 441.2153809,
+                                        "cost": 878.0576904,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -6989,11 +7572,11 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_inner_2",
                                 "rows_for_plan": 2187,
-                                "cost_for_plan": 1002.446143,
+                                "cost_for_plan": 981.9730713,
                                 "semijoin_strategy_choice": [],
                                 "pruned_by_cost": true,
-                                "current_cost": 1002.446143,
-                                "best_cost": 509.4615234
+                                "current_cost": 981.9730713,
+                                "best_cost": 360.2293969
                               },
                               {
                                 "plan_prefix": [
@@ -7004,11 +7587,11 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_inner_3",
                                 "rows_for_plan": 2187,
-                                "cost_for_plan": 1002.446143,
+                                "cost_for_plan": 981.9730713,
                                 "semijoin_strategy_choice": [],
                                 "pruned_by_cost": true,
-                                "current_cost": 1002.446143,
-                                "best_cost": 509.4615234
+                                "current_cost": 981.9730713,
+                                "best_cost": 360.2293969
                               }
                             ]
                           },
@@ -7016,7 +7599,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             "plan_prefix": ["t_outer_1", "t_inner_1", "t_inner_4"],
                             "table": "t_inner_2",
                             "rows_for_plan": 243,
-                            "cost_for_plan": 123.8307617,
+                            "cost_for_plan": 103.9153809,
                             "semijoin_strategy_choice": [],
                             "pruned_by_heuristic": true
                           },
@@ -7024,7 +7607,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             "plan_prefix": ["t_outer_1", "t_inner_1", "t_inner_4"],
                             "table": "t_inner_3",
                             "rows_for_plan": 243,
-                            "cost_for_plan": 123.8307617,
+                            "cost_for_plan": 103.9153809,
                             "semijoin_strategy_choice": [],
                             "pruned_by_heuristic": true
                           }
@@ -7034,7 +7617,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                         "plan_prefix": ["t_outer_1", "t_inner_1"],
                         "table": "t_inner_3",
                         "rows_for_plan": 81,
-                        "cost_for_plan": 45.62563477,
+                        "cost_for_plan": 33.31281738,
                         "semijoin_strategy_choice": [],
                         "pruned_by_heuristic": true
                       }
@@ -7044,7 +7627,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                     "plan_prefix": ["t_outer_1"],
                     "table": "t_inner_2",
                     "rows_for_plan": 27,
-                    "cost_for_plan": 17.82050781,
+                    "cost_for_plan": 11.76025391,
                     "semijoin_strategy_choice": [],
                     "pruned_by_heuristic": true
                   },
@@ -7052,7 +7635,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                     "plan_prefix": ["t_outer_1"],
                     "table": "t_inner_4",
                     "rows_for_plan": 9,
-                    "cost_for_plan": 9.410253906,
+                    "cost_for_plan": 5.755126953,
                     "semijoin_strategy_choice": [],
                     "pruned_by_heuristic": true
                   },
@@ -7060,7 +7643,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                     "plan_prefix": ["t_outer_1"],
                     "table": "t_inner_3",
                     "rows_for_plan": 27,
-                    "cost_for_plan": 17.82050781,
+                    "cost_for_plan": 11.76025391,
                     "semijoin_strategy_choice": [],
                     "pruned_by_heuristic": true
                   }
@@ -7070,7 +7653,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                 "plan_prefix": [],
                 "table": "t_outer_2",
                 "rows_for_plan": 9,
-                "cost_for_plan": 5.615380859,
+                "cost_for_plan": 3.25769043,
                 "semijoin_strategy_choice": [],
                 "pruned_by_heuristic": true
               },
@@ -7078,7 +7661,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                 "plan_prefix": [],
                 "table": "t_inner_1",
                 "rows_for_plan": 3,
-                "cost_for_plan": 3.205126953,
+                "cost_for_plan": 1.752563477,
                 "semijoin_strategy_choice": [],
                 "pruned_by_heuristic": true
               },
@@ -7086,7 +7669,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                 "plan_prefix": [],
                 "table": "t_inner_2",
                 "rows_for_plan": 9,
-                "cost_for_plan": 5.615380859,
+                "cost_for_plan": 3.25769043,
                 "semijoin_strategy_choice": [],
                 "pruned_by_heuristic": true
               },
@@ -7094,7 +7677,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                 "plan_prefix": [],
                 "table": "t_inner_4",
                 "rows_for_plan": 3,
-                "cost_for_plan": 3.205126953,
+                "cost_for_plan": 1.752563477,
                 "semijoin_strategy_choice": [],
                 "pruned_by_heuristic": true
               },
@@ -7102,7 +7685,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                 "plan_prefix": [],
                 "table": "t_inner_3",
                 "rows_for_plan": 9,
-                "cost_for_plan": 5.615380859,
+                "cost_for_plan": 3.25769043,
                 "semijoin_strategy_choice": [],
                 "pruned_by_heuristic": true
               }
@@ -7111,10 +7694,118 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
           {
             "fix_semijoin_strategies_for_picked_join_order": [
               {
-                "semi_join_strategy": "DuplicateWeedout"
+                "semi_join_strategy": "FirstMatch",
+                "join_order": [
+                  {
+                    "table": "t_inner_4",
+                    "best_access_path": {
+                      "table": "t_inner_4",
+                      "plan_details": {
+                        "record_count": 27
+                      },
+                      "considered_access_paths": [
+                        {
+                          "access_type": "scan",
+                          "rows": 3,
+                          "rows_after_scan": 3,
+                          "rows_after_filter": 3,
+                          "cost": 47.31921387,
+                          "index_only": false,
+                          "chosen": true
+                        }
+                      ],
+                      "chosen_access_method": {
+                        "type": "scan",
+                        "records": 3,
+                        "cost": 47.31921387,
+                        "uses_join_buffering": false
+                      }
+                    }
+                  },
+                  {
+                    "table": "t_inner_3",
+                    "best_access_path": {
+                      "table": "t_inner_3",
+                      "plan_details": {
+                        "record_count": 81
+                      },
+                      "considered_access_paths": [
+                        {
+                          "access_type": "scan",
+                          "rows": 9,
+                          "rows_after_scan": 9,
+                          "rows_after_filter": 9,
+                          "cost": 263.8729248,
+                          "index_only": false,
+                          "chosen": true
+                        }
+                      ],
+                      "chosen_access_method": {
+                        "type": "scan",
+                        "records": 9,
+                        "cost": 263.8729248,
+                        "uses_join_buffering": false
+                      }
+                    }
+                  }
+                ]
               },
               {
-                "semi_join_strategy": "DuplicateWeedout"
+                "semi_join_strategy": "FirstMatch",
+                "join_order": [
+                  {
+                    "table": "t_inner_1",
+                    "best_access_path": {
+                      "table": "t_inner_1",
+                      "plan_details": {
+                        "record_count": 3
+                      },
+                      "considered_access_paths": [
+                        {
+                          "access_type": "scan",
+                          "rows": 3,
+                          "rows_after_scan": 3,
+                          "rows_after_filter": 3,
+                          "cost": 5.25769043,
+                          "index_only": false,
+                          "chosen": true
+                        }
+                      ],
+                      "chosen_access_method": {
+                        "type": "scan",
+                        "records": 3,
+                        "cost": 5.25769043,
+                        "uses_join_buffering": false
+                      }
+                    }
+                  },
+                  {
+                    "table": "t_inner_2",
+                    "best_access_path": {
+                      "table": "t_inner_2",
+                      "plan_details": {
+                        "record_count": 9
+                      },
+                      "considered_access_paths": [
+                        {
+                          "access_type": "scan",
+                          "rows": 9,
+                          "rows_after_scan": 9,
+                          "rows_after_filter": 9,
+                          "cost": 29.31921387,
+                          "index_only": false,
+                          "chosen": true
+                        }
+                      ],
+                      "chosen_access_method": {
+                        "type": "scan",
+                        "records": 9,
+                        "cost": 29.31921387,
+                        "uses_join_buffering": false
+                      }
+                    }
+                  }
+                ]
               }
             ]
           },
@@ -7123,11 +7814,12 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
               "t_outer_1",
               "t_inner_1",
               "t_inner_2",
-              "t_inner_4",
               "t_outer_2",
+              "t_inner_4",
               "t_inner_3"
             ],
-            "cost": 509.4605234
+            "rows": 27,
+            "cost": 360.2292969
           },
           {
             "substitute_best_equal": {
@@ -7152,11 +7844,11 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                   "attached": null
                 },
                 {
-                  "table": "t_inner_4",
+                  "table": "t_outer_2",
                   "attached": null
                 },
                 {
-                  "table": "t_outer_2",
+                  "table": "t_inner_4",
                   "attached": null
                 },
                 {
@@ -7347,42 +8039,48 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                 "table": "t_outer_1",
                 "table_scan": {
                   "rows": 3,
-                  "cost": 2.005126953
+                  "read_cost": 1.002563477,
+                  "read_and_compare_cost": 1.752563477
                 }
               },
               {
                 "table": "t_outer_2",
                 "table_scan": {
                   "rows": 9,
-                  "cost": 2.015380859
+                  "read_cost": 1.00769043,
+                  "read_and_compare_cost": 3.25769043
                 }
               },
               {
                 "table": "t_inner_2",
                 "table_scan": {
                   "rows": 9,
-                  "cost": 2.015380859
+                  "read_cost": 1.00769043,
+                  "read_and_compare_cost": 3.25769043
                 }
               },
               {
                 "table": "t_inner_1",
                 "table_scan": {
                   "rows": 3,
-                  "cost": 2.005126953
+                  "read_cost": 1.002563477,
+                  "read_and_compare_cost": 1.752563477
                 }
               },
               {
                 "table": "t_inner_3",
                 "table_scan": {
                   "rows": 9,
-                  "cost": 2.015380859
+                  "read_cost": 1.00769043,
+                  "read_and_compare_cost": 3.25769043
                 }
               },
               {
                 "table": "t_inner_4",
                 "table_scan": {
                   "rows": 3,
-                  "cost": 2.005126953
+                  "read_cost": 1.002563477,
+                  "read_and_compare_cost": 1.752563477
                 }
               }
             ]
@@ -7408,18 +8106,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                         {
                           "best_access_path": {
                             "table": "t_inner_1",
+                            "plan_details": {
+                              "record_count": 1
+                            },
                             "considered_access_paths": [
                               {
                                 "access_type": "scan",
-                                "resulting_rows": 3,
-                                "cost": 2.605126953,
+                                "rows": 3,
+                                "rows_after_scan": 3,
+                                "rows_after_filter": 3,
+                                "cost": 1.752563477,
+                                "index_only": false,
                                 "chosen": true
                               }
                             ],
                             "chosen_access_method": {
                               "type": "scan",
                               "records": 3,
-                              "cost": 2.605126953,
+                              "cost": 1.752563477,
                               "uses_join_buffering": false
                             }
                           }
@@ -7427,18 +8131,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                         {
                           "best_access_path": {
                             "table": "t_inner_2",
+                            "plan_details": {
+                              "record_count": 1
+                            },
                             "considered_access_paths": [
                               {
                                 "access_type": "scan",
-                                "resulting_rows": 9,
-                                "cost": 3.815380859,
+                                "rows": 9,
+                                "rows_after_scan": 9,
+                                "rows_after_filter": 9,
+                                "cost": 3.25769043,
+                                "index_only": false,
                                 "chosen": true
                               }
                             ],
                             "chosen_access_method": {
                               "type": "scan",
                               "records": 9,
-                              "cost": 3.815380859,
+                              "cost": 3.25769043,
                               "uses_join_buffering": false
                             }
                           }
@@ -7449,7 +8159,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                       "plan_prefix": [],
                       "table": "t_inner_1",
                       "rows_for_plan": 3,
-                      "cost_for_plan": 3.205126953,
+                      "cost_for_plan": 1.752563477,
                       "rest_of_plan": [
                         {
                           "plan_prefix": ["t_inner_1"],
@@ -7457,18 +8167,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             {
                               "best_access_path": {
                                 "table": "t_inner_2",
+                                "plan_details": {
+                                  "record_count": 3
+                                },
                                 "considered_access_paths": [
                                   {
-                                    "access_type": "scan",
-                                    "resulting_rows": 9,
-                                    "cost": 9.215380859,
+                                    "access_type": "scan_with_join_cache",
+                                    "rows": 9,
+                                    "rows_after_scan": 9,
+                                    "rows_after_filter": 9,
+                                    "cost": 10.00769043,
+                                    "index_only": false,
                                     "chosen": true
                                   }
                                 ],
                                 "chosen_access_method": {
                                   "type": "scan",
                                   "records": 9,
-                                  "cost": 9.215380859,
+                                  "cost": 10.00769043,
                                   "uses_join_buffering": true
                                 }
                               }
@@ -7479,7 +8195,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                           "plan_prefix": ["t_inner_1"],
                           "table": "t_inner_2",
                           "rows_for_plan": 27,
-                          "cost_for_plan": 17.82050781
+                          "cost_for_plan": 11.76025391
                         }
                       ]
                     },
@@ -7487,7 +8203,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                       "plan_prefix": [],
                       "table": "t_inner_2",
                       "rows_for_plan": 9,
-                      "cost_for_plan": 5.615380859,
+                      "cost_for_plan": 3.25769043,
                       "pruned_by_heuristic": true
                     }
                   ]
@@ -7500,18 +8216,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                         {
                           "best_access_path": {
                             "table": "t_inner_4",
+                            "plan_details": {
+                              "record_count": 1
+                            },
                             "considered_access_paths": [
                               {
                                 "access_type": "scan",
-                                "resulting_rows": 3,
-                                "cost": 2.605126953,
+                                "rows": 3,
+                                "rows_after_scan": 3,
+                                "rows_after_filter": 3,
+                                "cost": 1.752563477,
+                                "index_only": false,
                                 "chosen": true
                               }
                             ],
                             "chosen_access_method": {
                               "type": "scan",
                               "records": 3,
-                              "cost": 2.605126953,
+                              "cost": 1.752563477,
                               "uses_join_buffering": false
                             }
                           }
@@ -7519,18 +8241,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                         {
                           "best_access_path": {
                             "table": "t_inner_3",
+                            "plan_details": {
+                              "record_count": 1
+                            },
                             "considered_access_paths": [
                               {
                                 "access_type": "scan",
-                                "resulting_rows": 9,
-                                "cost": 3.815380859,
+                                "rows": 9,
+                                "rows_after_scan": 9,
+                                "rows_after_filter": 9,
+                                "cost": 3.25769043,
+                                "index_only": false,
                                 "chosen": true
                               }
                             ],
                             "chosen_access_method": {
                               "type": "scan",
                               "records": 9,
-                              "cost": 3.815380859,
+                              "cost": 3.25769043,
                               "uses_join_buffering": false
                             }
                           }
@@ -7541,7 +8269,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                       "plan_prefix": [],
                       "table": "t_inner_4",
                       "rows_for_plan": 3,
-                      "cost_for_plan": 3.205126953,
+                      "cost_for_plan": 1.752563477,
                       "rest_of_plan": [
                         {
                           "plan_prefix": ["t_inner_4"],
@@ -7549,18 +8277,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             {
                               "best_access_path": {
                                 "table": "t_inner_3",
+                                "plan_details": {
+                                  "record_count": 3
+                                },
                                 "considered_access_paths": [
                                   {
-                                    "access_type": "scan",
-                                    "resulting_rows": 9,
-                                    "cost": 9.215380859,
+                                    "access_type": "scan_with_join_cache",
+                                    "rows": 9,
+                                    "rows_after_scan": 9,
+                                    "rows_after_filter": 9,
+                                    "cost": 10.00769043,
+                                    "index_only": false,
                                     "chosen": true
                                   }
                                 ],
                                 "chosen_access_method": {
                                   "type": "scan",
                                   "records": 9,
-                                  "cost": 9.215380859,
+                                  "cost": 10.00769043,
                                   "uses_join_buffering": true
                                 }
                               }
@@ -7571,7 +8305,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                           "plan_prefix": ["t_inner_4"],
                           "table": "t_inner_3",
                           "rows_for_plan": 27,
-                          "cost_for_plan": 17.82050781
+                          "cost_for_plan": 11.76025391
                         }
                       ]
                     },
@@ -7579,7 +8313,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                       "plan_prefix": [],
                       "table": "t_inner_3",
                       "rows_for_plan": 9,
-                      "cost_for_plan": 5.615380859,
+                      "cost_for_plan": 3.25769043,
                       "pruned_by_heuristic": true
                     }
                   ]
@@ -7595,18 +8329,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                   {
                     "best_access_path": {
                       "table": "t_outer_1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 3,
-                          "cost": 2.605126953,
+                          "rows": 3,
+                          "rows_after_scan": 3,
+                          "rows_after_filter": 3,
+                          "cost": 1.752563477,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 3,
-                        "cost": 2.605126953,
+                        "cost": 1.752563477,
                         "uses_join_buffering": false
                       }
                     }
@@ -7614,18 +8354,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                   {
                     "best_access_path": {
                       "table": "t_inner_1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 3,
-                          "cost": 2.605126953,
+                          "rows": 3,
+                          "rows_after_scan": 3,
+                          "rows_after_filter": 3,
+                          "cost": 1.752563477,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 3,
-                        "cost": 2.605126953,
+                        "cost": 1.752563477,
                         "uses_join_buffering": false
                       }
                     }
@@ -7633,18 +8379,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                   {
                     "best_access_path": {
                       "table": "t_inner_2",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 9,
-                          "cost": 3.815380859,
+                          "rows": 9,
+                          "rows_after_scan": 9,
+                          "rows_after_filter": 9,
+                          "cost": 3.25769043,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 9,
-                        "cost": 3.815380859,
+                        "cost": 3.25769043,
                         "uses_join_buffering": false
                       }
                     }
@@ -7652,18 +8404,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                   {
                     "best_access_path": {
                       "table": "t_outer_2",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 9,
-                          "cost": 3.815380859,
+                          "rows": 9,
+                          "rows_after_scan": 9,
+                          "rows_after_filter": 9,
+                          "cost": 3.25769043,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 9,
-                        "cost": 3.815380859,
+                        "cost": 3.25769043,
                         "uses_join_buffering": false
                       }
                     }
@@ -7671,18 +8429,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                   {
                     "best_access_path": {
                       "table": "t_inner_4",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 3,
-                          "cost": 2.605126953,
+                          "rows": 3,
+                          "rows_after_scan": 3,
+                          "rows_after_filter": 3,
+                          "cost": 1.752563477,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 3,
-                        "cost": 2.605126953,
+                        "cost": 1.752563477,
                         "uses_join_buffering": false
                       }
                     }
@@ -7690,18 +8454,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                   {
                     "best_access_path": {
                       "table": "t_inner_3",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 9,
-                          "cost": 3.815380859,
+                          "rows": 9,
+                          "rows_after_scan": 9,
+                          "rows_after_filter": 9,
+                          "cost": 3.25769043,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 9,
-                        "cost": 3.815380859,
+                        "cost": 3.25769043,
                         "uses_join_buffering": false
                       }
                     }
@@ -7712,7 +8482,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                 "plan_prefix": [],
                 "table": "t_outer_1",
                 "rows_for_plan": 3,
-                "cost_for_plan": 3.205126953,
+                "cost_for_plan": 1.752563477,
                 "semijoin_strategy_choice": [],
                 "rest_of_plan": [
                   {
@@ -7721,18 +8491,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                       {
                         "best_access_path": {
                           "table": "t_inner_1",
+                          "plan_details": {
+                            "record_count": 3
+                          },
                           "considered_access_paths": [
                             {
-                              "access_type": "scan",
-                              "resulting_rows": 3,
-                              "cost": 4.405126953,
+                              "access_type": "scan_with_join_cache",
+                              "rows": 3,
+                              "rows_after_scan": 3,
+                              "rows_after_filter": 3,
+                              "cost": 4.002563477,
+                              "index_only": false,
                               "chosen": true
                             }
                           ],
                           "chosen_access_method": {
                             "type": "scan",
                             "records": 3,
-                            "cost": 4.405126953,
+                            "cost": 4.002563477,
                             "uses_join_buffering": true
                           }
                         }
@@ -7740,18 +8516,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                       {
                         "best_access_path": {
                           "table": "t_inner_2",
+                          "plan_details": {
+                            "record_count": 3
+                          },
                           "considered_access_paths": [
                             {
-                              "access_type": "scan",
-                              "resulting_rows": 9,
-                              "cost": 9.215380859,
+                              "access_type": "scan_with_join_cache",
+                              "rows": 9,
+                              "rows_after_scan": 9,
+                              "rows_after_filter": 9,
+                              "cost": 10.00769043,
+                              "index_only": false,
                               "chosen": true
                             }
                           ],
                           "chosen_access_method": {
                             "type": "scan",
                             "records": 9,
-                            "cost": 9.215380859,
+                            "cost": 10.00769043,
                             "uses_join_buffering": true
                           }
                         }
@@ -7759,18 +8541,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                       {
                         "best_access_path": {
                           "table": "t_outer_2",
+                          "plan_details": {
+                            "record_count": 3
+                          },
                           "considered_access_paths": [
                             {
-                              "access_type": "scan",
-                              "resulting_rows": 9,
-                              "cost": 9.215380859,
+                              "access_type": "scan_with_join_cache",
+                              "rows": 9,
+                              "rows_after_scan": 9,
+                              "rows_after_filter": 9,
+                              "cost": 10.00769043,
+                              "index_only": false,
                               "chosen": true
                             }
                           ],
                           "chosen_access_method": {
                             "type": "scan",
                             "records": 9,
-                            "cost": 9.215380859,
+                            "cost": 10.00769043,
                             "uses_join_buffering": true
                           }
                         }
@@ -7778,18 +8566,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                       {
                         "best_access_path": {
                           "table": "t_inner_4",
+                          "plan_details": {
+                            "record_count": 3
+                          },
                           "considered_access_paths": [
                             {
-                              "access_type": "scan",
-                              "resulting_rows": 3,
-                              "cost": 4.405126953,
+                              "access_type": "scan_with_join_cache",
+                              "rows": 3,
+                              "rows_after_scan": 3,
+                              "rows_after_filter": 3,
+                              "cost": 4.002563477,
+                              "index_only": false,
                               "chosen": true
                             }
                           ],
                           "chosen_access_method": {
                             "type": "scan",
                             "records": 3,
-                            "cost": 4.405126953,
+                            "cost": 4.002563477,
                             "uses_join_buffering": true
                           }
                         }
@@ -7797,18 +8591,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                       {
                         "best_access_path": {
                           "table": "t_inner_3",
+                          "plan_details": {
+                            "record_count": 3
+                          },
                           "considered_access_paths": [
                             {
-                              "access_type": "scan",
-                              "resulting_rows": 9,
-                              "cost": 9.215380859,
+                              "access_type": "scan_with_join_cache",
+                              "rows": 9,
+                              "rows_after_scan": 9,
+                              "rows_after_filter": 9,
+                              "cost": 10.00769043,
+                              "index_only": false,
                               "chosen": true
                             }
                           ],
                           "chosen_access_method": {
                             "type": "scan",
                             "records": 9,
-                            "cost": 9.215380859,
+                            "cost": 10.00769043,
                             "uses_join_buffering": true
                           }
                         }
@@ -7819,7 +8619,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                     "plan_prefix": ["t_outer_1"],
                     "table": "t_outer_2",
                     "rows_for_plan": 27,
-                    "cost_for_plan": 17.82050781,
+                    "cost_for_plan": 11.76025391,
                     "semijoin_strategy_choice": [],
                     "rest_of_plan": [
                       {
@@ -7828,18 +8628,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                           {
                             "best_access_path": {
                               "table": "t_inner_2",
+                              "plan_details": {
+                                "record_count": 27
+                              },
                               "considered_access_paths": [
                                 {
-                                  "access_type": "scan",
-                                  "resulting_rows": 9,
-                                  "cost": 52.41538086,
+                                  "access_type": "scan_with_join_cache",
+                                  "rows": 9,
+                                  "rows_after_scan": 9,
+                                  "rows_after_filter": 9,
+                                  "cost": 76.15769043,
+                                  "index_only": false,
                                   "chosen": true
                                 }
                               ],
                               "chosen_access_method": {
                                 "type": "scan",
                                 "records": 9,
-                                "cost": 52.41538086,
+                                "cost": 76.15769043,
                                 "uses_join_buffering": true
                               }
                             }
@@ -7847,18 +8653,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                           {
                             "best_access_path": {
                               "table": "t_inner_1",
+                              "plan_details": {
+                                "record_count": 27
+                              },
                               "considered_access_paths": [
                                 {
-                                  "access_type": "scan",
-                                  "resulting_rows": 3,
-                                  "cost": 18.80512695,
+                                  "access_type": "scan_with_join_cache",
+                                  "rows": 3,
+                                  "rows_after_scan": 3,
+                                  "rows_after_filter": 3,
+                                  "cost": 26.05256348,
+                                  "index_only": false,
                                   "chosen": true
                                 }
                               ],
                               "chosen_access_method": {
                                 "type": "scan",
                                 "records": 3,
-                                "cost": 18.80512695,
+                                "cost": 26.05256348,
                                 "uses_join_buffering": true
                               }
                             }
@@ -7866,18 +8678,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                           {
                             "best_access_path": {
                               "table": "t_inner_4",
+                              "plan_details": {
+                                "record_count": 27
+                              },
                               "considered_access_paths": [
                                 {
-                                  "access_type": "scan",
-                                  "resulting_rows": 3,
-                                  "cost": 18.80512695,
+                                  "access_type": "scan_with_join_cache",
+                                  "rows": 3,
+                                  "rows_after_scan": 3,
+                                  "rows_after_filter": 3,
+                                  "cost": 26.05256348,
+                                  "index_only": false,
                                   "chosen": true
                                 }
                               ],
                               "chosen_access_method": {
                                 "type": "scan",
                                 "records": 3,
-                                "cost": 18.80512695,
+                                "cost": 26.05256348,
                                 "uses_join_buffering": true
                               }
                             }
@@ -7885,18 +8703,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                           {
                             "best_access_path": {
                               "table": "t_inner_3",
+                              "plan_details": {
+                                "record_count": 27
+                              },
                               "considered_access_paths": [
                                 {
-                                  "access_type": "scan",
-                                  "resulting_rows": 9,
-                                  "cost": 52.41538086,
+                                  "access_type": "scan_with_join_cache",
+                                  "rows": 9,
+                                  "rows_after_scan": 9,
+                                  "rows_after_filter": 9,
+                                  "cost": 76.15769043,
+                                  "index_only": false,
                                   "chosen": true
                                 }
                               ],
                               "chosen_access_method": {
                                 "type": "scan",
                                 "records": 9,
-                                "cost": 52.41538086,
+                                "cost": 76.15769043,
                                 "uses_join_buffering": true
                               }
                             }
@@ -7907,7 +8731,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                         "plan_prefix": ["t_outer_1", "t_outer_2"],
                         "table": "t_inner_1",
                         "rows_for_plan": 81,
-                        "cost_for_plan": 52.82563477,
+                        "cost_for_plan": 37.81281738,
                         "semijoin_strategy_choice": [],
                         "rest_of_plan": [
                           {
@@ -7916,18 +8740,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_inner_2",
+                                  "plan_details": {
+                                    "record_count": 81
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 9,
-                                      "cost": 149.6153809,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 9,
+                                      "rows_after_scan": 9,
+                                      "rows_after_filter": 9,
+                                      "cost": 258.4076904,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 9,
-                                    "cost": 149.6153809,
+                                    "cost": 258.4076904,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -7935,18 +8765,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_inner_4",
+                                  "plan_details": {
+                                    "record_count": 81
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 3,
-                                      "cost": 51.20512695,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 3,
+                                      "rows_after_scan": 3,
+                                      "rows_after_filter": 3,
+                                      "cost": 86.80256348,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 3,
-                                    "cost": 51.20512695,
+                                    "cost": 86.80256348,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -7954,18 +8790,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_inner_3",
+                                  "plan_details": {
+                                    "record_count": 81
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 9,
-                                      "cost": 149.6153809,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 9,
+                                      "rows_after_scan": 9,
+                                      "rows_after_filter": 9,
+                                      "cost": 258.4076904,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 9,
-                                    "cost": 149.6153809,
+                                    "cost": 258.4076904,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -7976,22 +8818,25 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             "plan_prefix": ["t_outer_1", "t_outer_2", "t_inner_1"],
                             "table": "t_inner_2",
                             "rows_for_plan": 729,
-                            "cost_for_plan": 348.2410156,
+                            "cost_for_plan": 296.2205078,
                             "semijoin_strategy_choice": [
                               {
                                 "strategy": "FirstMatch",
                                 "records": 27,
-                                "read_time": 721.2047852
+                                "cost": 322.9523926
                               },
                               {
                                 "strategy": "SJ-Materialization",
                                 "records": 27,
-                                "cost": 32.34101562
+                                "cost": 27.22050781
                               },
                               {
                                 "strategy": "DuplicateWeedout",
                                 "records": 27,
-                                "read_time": 461.6410156
+                                "dups_cost": 296.2205078,
+                                "write_cost": 5.05,
+                                "full_lookup_cost": 109.35,
+                                "total_cost": 410.6205078
                               },
                               {
                                 "chosen_strategy": "SJ-Materialization"
@@ -8009,18 +8854,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_inner_4",
+                                      "plan_details": {
+                                        "record_count": 27
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 3,
-                                          "cost": 18.80512695,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 3,
+                                          "rows_after_scan": 3,
+                                          "rows_after_filter": 3,
+                                          "cost": 34.15256348,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 3,
-                                        "cost": 18.80512695,
+                                        "cost": 34.15256348,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -8028,18 +8879,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_inner_3",
+                                      "plan_details": {
+                                        "record_count": 27
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 9,
-                                          "cost": 52.41538086,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 9,
+                                          "rows_after_scan": 9,
+                                          "rows_after_filter": 9,
+                                          "cost": 100.4576904,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 9,
-                                        "cost": 52.41538086,
+                                        "cost": 100.4576904,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -8055,7 +8912,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_inner_4",
                                 "rows_for_plan": 81,
-                                "cost_for_plan": 67.34614258,
+                                "cost_for_plan": 61.37307129,
                                 "semijoin_strategy_choice": [],
                                 "rest_of_plan": [
                                   {
@@ -8070,18 +8927,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                       {
                                         "best_access_path": {
                                           "table": "t_inner_3",
+                                          "plan_details": {
+                                            "record_count": 81
+                                          },
                                           "considered_access_paths": [
                                             {
-                                              "access_type": "scan",
-                                              "resulting_rows": 9,
-                                              "cost": 149.6153809,
+                                              "access_type": "scan_with_join_cache",
+                                              "rows": 9,
+                                              "rows_after_scan": 9,
+                                              "rows_after_filter": 9,
+                                              "cost": 331.3076904,
+                                              "index_only": false,
                                               "chosen": true
                                             }
                                           ],
                                           "chosen_access_method": {
                                             "type": "scan",
                                             "records": 9,
-                                            "cost": 149.6153809,
+                                            "cost": 331.3076904,
                                             "uses_join_buffering": true
                                           }
                                         }
@@ -8098,22 +8961,25 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                     ],
                                     "table": "t_inner_3",
                                     "rows_for_plan": 729,
-                                    "cost_for_plan": 362.7615234,
+                                    "cost_for_plan": 392.6807617,
                                     "semijoin_strategy_choice": [
                                       {
                                         "strategy": "FirstMatch",
                                         "records": 27,
-                                        "read_time": 735.725293
+                                        "cost": 338.4126465
                                       },
                                       {
                                         "strategy": "SJ-Materialization",
                                         "records": 27,
-                                        "cost": 46.86152344
+                                        "cost": 42.68076172
                                       },
                                       {
                                         "strategy": "DuplicateWeedout",
                                         "records": 27,
-                                        "read_time": 476.1615234
+                                        "dups_cost": 392.6807617,
+                                        "write_cost": 5.05,
+                                        "full_lookup_cost": 109.35,
+                                        "total_cost": 507.0807617
                                       },
                                       {
                                         "chosen_strategy": "SJ-Materialization"
@@ -8131,11 +8997,11 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_inner_3",
                                 "rows_for_plan": 243,
-                                "cost_for_plan": 133.3563965,
+                                "cost_for_plan": 127.6781982,
                                 "semijoin_strategy_choice": [],
                                 "pruned_by_cost": true,
-                                "current_cost": 133.3563965,
-                                "best_cost": 46.86152344
+                                "current_cost": 127.6781982,
+                                "best_cost": 42.68086172
                               }
                             ]
                           },
@@ -8143,21 +9009,21 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             "plan_prefix": ["t_outer_1", "t_outer_2", "t_inner_1"],
                             "table": "t_inner_4",
                             "rows_for_plan": 243,
-                            "cost_for_plan": 152.6307617,
+                            "cost_for_plan": 124.6153809,
                             "semijoin_strategy_choice": [],
                             "pruned_by_cost": true,
-                            "current_cost": 152.6307617,
-                            "best_cost": 46.86152344
+                            "current_cost": 124.6153809,
+                            "best_cost": 42.68086172
                           },
                           {
                             "plan_prefix": ["t_outer_1", "t_outer_2", "t_inner_1"],
                             "table": "t_inner_3",
                             "rows_for_plan": 729,
-                            "cost_for_plan": 348.2410156,
+                            "cost_for_plan": 296.2205078,
                             "semijoin_strategy_choice": [],
                             "pruned_by_cost": true,
-                            "current_cost": 348.2410156,
-                            "best_cost": 46.86152344
+                            "current_cost": 296.2205078,
+                            "best_cost": 42.68086172
                           }
                         ]
                       },
@@ -8165,31 +9031,29 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                         "plan_prefix": ["t_outer_1", "t_outer_2"],
                         "table": "t_inner_2",
                         "rows_for_plan": 243,
-                        "cost_for_plan": 118.8358887,
+                        "cost_for_plan": 87.91794434,
                         "semijoin_strategy_choice": [],
                         "pruned_by_cost": true,
-                        "current_cost": 118.8358887,
-                        "best_cost": 46.86152344
+                        "current_cost": 87.91794434,
+                        "best_cost": 42.68086172
                       },
                       {
                         "plan_prefix": ["t_outer_1", "t_outer_2"],
                         "table": "t_inner_4",
                         "rows_for_plan": 81,
-                        "cost_for_plan": 52.82563477,
+                        "cost_for_plan": 37.81281738,
                         "semijoin_strategy_choice": [],
-                        "pruned_by_cost": true,
-                        "current_cost": 52.82563477,
-                        "best_cost": 46.86152344
+                        "pruned_by_heuristic": true
                       },
                       {
                         "plan_prefix": ["t_outer_1", "t_outer_2"],
                         "table": "t_inner_3",
                         "rows_for_plan": 243,
-                        "cost_for_plan": 118.8358887,
+                        "cost_for_plan": 87.91794434,
                         "semijoin_strategy_choice": [],
                         "pruned_by_cost": true,
-                        "current_cost": 118.8358887,
-                        "best_cost": 46.86152344
+                        "current_cost": 87.91794434,
+                        "best_cost": 42.68086172
                       }
                     ]
                   },
@@ -8197,7 +9061,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                     "plan_prefix": ["t_outer_1"],
                     "table": "t_inner_1",
                     "rows_for_plan": 9,
-                    "cost_for_plan": 9.410253906,
+                    "cost_for_plan": 5.755126953,
                     "semijoin_strategy_choice": [],
                     "rest_of_plan": [
                       {
@@ -8206,18 +9070,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                           {
                             "best_access_path": {
                               "table": "t_inner_2",
+                              "plan_details": {
+                                "record_count": 9
+                              },
                               "considered_access_paths": [
                                 {
-                                  "access_type": "scan",
-                                  "resulting_rows": 9,
-                                  "cost": 20.01538086,
+                                  "access_type": "scan_with_join_cache",
+                                  "rows": 9,
+                                  "rows_after_scan": 9,
+                                  "rows_after_filter": 9,
+                                  "cost": 27.55769043,
+                                  "index_only": false,
                                   "chosen": true
                                 }
                               ],
                               "chosen_access_method": {
                                 "type": "scan",
                                 "records": 9,
-                                "cost": 20.01538086,
+                                "cost": 27.55769043,
                                 "uses_join_buffering": true
                               }
                             }
@@ -8225,18 +9095,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                           {
                             "best_access_path": {
                               "table": "t_outer_2",
+                              "plan_details": {
+                                "record_count": 9
+                              },
                               "considered_access_paths": [
                                 {
-                                  "access_type": "scan",
-                                  "resulting_rows": 9,
-                                  "cost": 20.01538086,
+                                  "access_type": "scan_with_join_cache",
+                                  "rows": 9,
+                                  "rows_after_scan": 9,
+                                  "rows_after_filter": 9,
+                                  "cost": 27.55769043,
+                                  "index_only": false,
                                   "chosen": true
                                 }
                               ],
                               "chosen_access_method": {
                                 "type": "scan",
                                 "records": 9,
-                                "cost": 20.01538086,
+                                "cost": 27.55769043,
                                 "uses_join_buffering": true
                               }
                             }
@@ -8244,18 +9120,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                           {
                             "best_access_path": {
                               "table": "t_inner_4",
+                              "plan_details": {
+                                "record_count": 9
+                              },
                               "considered_access_paths": [
                                 {
-                                  "access_type": "scan",
-                                  "resulting_rows": 3,
-                                  "cost": 8.005126953,
+                                  "access_type": "scan_with_join_cache",
+                                  "rows": 3,
+                                  "rows_after_scan": 3,
+                                  "rows_after_filter": 3,
+                                  "cost": 9.852563477,
+                                  "index_only": false,
                                   "chosen": true
                                 }
                               ],
                               "chosen_access_method": {
                                 "type": "scan",
                                 "records": 3,
-                                "cost": 8.005126953,
+                                "cost": 9.852563477,
                                 "uses_join_buffering": true
                               }
                             }
@@ -8263,18 +9145,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                           {
                             "best_access_path": {
                               "table": "t_inner_3",
+                              "plan_details": {
+                                "record_count": 9
+                              },
                               "considered_access_paths": [
                                 {
-                                  "access_type": "scan",
-                                  "resulting_rows": 9,
-                                  "cost": 20.01538086,
+                                  "access_type": "scan_with_join_cache",
+                                  "rows": 9,
+                                  "rows_after_scan": 9,
+                                  "rows_after_filter": 9,
+                                  "cost": 27.55769043,
+                                  "index_only": false,
                                   "chosen": true
                                 }
                               ],
                               "chosen_access_method": {
                                 "type": "scan",
                                 "records": 9,
-                                "cost": 20.01538086,
+                                "cost": 27.55769043,
                                 "uses_join_buffering": true
                               }
                             }
@@ -8285,7 +9173,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                         "plan_prefix": ["t_outer_1", "t_inner_1"],
                         "table": "t_outer_2",
                         "rows_for_plan": 81,
-                        "cost_for_plan": 45.62563477,
+                        "cost_for_plan": 33.31281738,
                         "semijoin_strategy_choice": [],
                         "rest_of_plan": [
                           {
@@ -8294,18 +9182,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_inner_2",
+                                  "plan_details": {
+                                    "record_count": 81
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 9,
-                                      "cost": 149.6153809,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 9,
+                                      "rows_after_scan": 9,
+                                      "rows_after_filter": 9,
+                                      "cost": 258.4076904,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 9,
-                                    "cost": 149.6153809,
+                                    "cost": 258.4076904,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -8313,18 +9207,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_inner_4",
+                                  "plan_details": {
+                                    "record_count": 81
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 3,
-                                      "cost": 51.20512695,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 3,
+                                      "rows_after_scan": 3,
+                                      "rows_after_filter": 3,
+                                      "cost": 86.80256348,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 3,
-                                    "cost": 51.20512695,
+                                    "cost": 86.80256348,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -8332,18 +9232,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_inner_3",
+                                  "plan_details": {
+                                    "record_count": 81
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 9,
-                                      "cost": 149.6153809,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 9,
+                                      "rows_after_scan": 9,
+                                      "rows_after_filter": 9,
+                                      "cost": 258.4076904,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 9,
-                                    "cost": 149.6153809,
+                                    "cost": 258.4076904,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -8354,40 +9260,43 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             "plan_prefix": ["t_outer_1", "t_inner_1", "t_outer_2"],
                             "table": "t_inner_2",
                             "rows_for_plan": 729,
-                            "cost_for_plan": 341.0410156,
+                            "cost_for_plan": 291.7205078,
                             "semijoin_strategy_choice": [
                               {
                                 "strategy": "DuplicateWeedout",
                                 "records": 27,
-                                "read_time": 454.4410156
+                                "dups_cost": 291.7205078,
+                                "write_cost": 5.05,
+                                "full_lookup_cost": 109.35,
+                                "total_cost": 406.1205078
                               },
                               {
                                 "chosen_strategy": "DuplicateWeedout"
                               }
                             ],
                             "pruned_by_cost": true,
-                            "current_cost": 454.4410156,
-                            "best_cost": 46.86152344
+                            "current_cost": 406.1205078,
+                            "best_cost": 42.68086172
                           },
                           {
                             "plan_prefix": ["t_outer_1", "t_inner_1", "t_outer_2"],
                             "table": "t_inner_4",
                             "rows_for_plan": 243,
-                            "cost_for_plan": 145.4307617,
+                            "cost_for_plan": 120.1153809,
                             "semijoin_strategy_choice": [],
                             "pruned_by_cost": true,
-                            "current_cost": 145.4307617,
-                            "best_cost": 46.86152344
+                            "current_cost": 120.1153809,
+                            "best_cost": 42.68086172
                           },
                           {
                             "plan_prefix": ["t_outer_1", "t_inner_1", "t_outer_2"],
                             "table": "t_inner_3",
                             "rows_for_plan": 729,
-                            "cost_for_plan": 341.0410156,
+                            "cost_for_plan": 291.7205078,
                             "semijoin_strategy_choice": [],
                             "pruned_by_cost": true,
-                            "current_cost": 341.0410156,
-                            "best_cost": 46.86152344
+                            "current_cost": 291.7205078,
+                            "best_cost": 42.68086172
                           }
                         ]
                       },
@@ -8395,22 +9304,25 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                         "plan_prefix": ["t_outer_1", "t_inner_1"],
                         "table": "t_inner_2",
                         "rows_for_plan": 81,
-                        "cost_for_plan": 45.62563477,
+                        "cost_for_plan": 33.31281738,
                         "semijoin_strategy_choice": [
                           {
                             "strategy": "FirstMatch",
                             "records": 3,
-                            "read_time": 81.35893555
+                            "cost": 36.32946777
                           },
                           {
                             "strategy": "SJ-Materialization",
                             "records": 3,
-                            "cost": 16.52563477
+                            "cost": 16.01281738
                           },
                           {
                             "strategy": "DuplicateWeedout",
                             "records": 3,
-                            "read_time": 58.22563477
+                            "dups_cost": 33.31281738,
+                            "write_cost": 1.45,
+                            "full_lookup_cost": 12.15,
+                            "total_cost": 46.91281738
                           },
                           {
                             "chosen_strategy": "SJ-Materialization"
@@ -8423,18 +9335,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_outer_2",
+                                  "plan_details": {
+                                    "record_count": 3
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 9,
-                                      "cost": 9.215380859,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 9,
+                                      "rows_after_scan": 9,
+                                      "rows_after_filter": 9,
+                                      "cost": 12.70769043,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 9,
-                                    "cost": 9.215380859,
+                                    "cost": 12.70769043,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -8442,18 +9360,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_inner_4",
+                                  "plan_details": {
+                                    "record_count": 3
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 3,
-                                      "cost": 4.405126953,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 3,
+                                      "rows_after_scan": 3,
+                                      "rows_after_filter": 3,
+                                      "cost": 4.902563477,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 3,
-                                    "cost": 4.405126953,
+                                    "cost": 4.902563477,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -8461,18 +9385,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                               {
                                 "best_access_path": {
                                   "table": "t_inner_3",
+                                  "plan_details": {
+                                    "record_count": 3
+                                  },
                                   "considered_access_paths": [
                                     {
-                                      "access_type": "scan",
-                                      "resulting_rows": 9,
-                                      "cost": 9.215380859,
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 9,
+                                      "rows_after_scan": 9,
+                                      "rows_after_filter": 9,
+                                      "cost": 12.70769043,
+                                      "index_only": false,
                                       "chosen": true
                                     }
                                   ],
                                   "chosen_access_method": {
                                     "type": "scan",
                                     "records": 9,
-                                    "cost": 9.215380859,
+                                    "cost": 12.70769043,
                                     "uses_join_buffering": true
                                   }
                                 }
@@ -8483,7 +9413,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             "plan_prefix": ["t_outer_1", "t_inner_1", "t_inner_2"],
                             "table": "t_outer_2",
                             "rows_for_plan": 27,
-                            "cost_for_plan": 31.14101563,
+                            "cost_for_plan": 28.72050781,
                             "semijoin_strategy_choice": [],
                             "rest_of_plan": [
                               {
@@ -8497,18 +9427,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_inner_4",
+                                      "plan_details": {
+                                        "record_count": 27
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 3,
-                                          "cost": 18.80512695,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 3,
+                                          "rows_after_scan": 3,
+                                          "rows_after_filter": 3,
+                                          "cost": 34.15256348,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 3,
-                                        "cost": 18.80512695,
+                                        "cost": 34.15256348,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -8516,18 +9452,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_inner_3",
+                                      "plan_details": {
+                                        "record_count": 27
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 9,
-                                          "cost": 52.41538086,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 9,
+                                          "rows_after_scan": 9,
+                                          "rows_after_filter": 9,
+                                          "cost": 100.4576904,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 9,
-                                        "cost": 52.41538086,
+                                        "cost": 100.4576904,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -8543,11 +9485,11 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_inner_4",
                                 "rows_for_plan": 81,
-                                "cost_for_plan": 66.14614258,
+                                "cost_for_plan": 62.87307129,
                                 "semijoin_strategy_choice": [],
                                 "pruned_by_cost": true,
-                                "current_cost": 66.14614258,
-                                "best_cost": 46.86152344
+                                "current_cost": 62.87307129,
+                                "best_cost": 42.68086172
                               },
                               {
                                 "plan_prefix": [
@@ -8558,11 +9500,11 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_inner_3",
                                 "rows_for_plan": 243,
-                                "cost_for_plan": 132.1563965,
+                                "cost_for_plan": 129.1781982,
                                 "semijoin_strategy_choice": [],
                                 "pruned_by_cost": true,
-                                "current_cost": 132.1563965,
-                                "best_cost": 46.86152344
+                                "current_cost": 129.1781982,
+                                "best_cost": 42.68086172
                               }
                             ]
                           },
@@ -8570,7 +9512,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             "plan_prefix": ["t_outer_1", "t_inner_1", "t_inner_2"],
                             "table": "t_inner_4",
                             "rows_for_plan": 9,
-                            "cost_for_plan": 22.73076172,
+                            "cost_for_plan": 20.91538086,
                             "semijoin_strategy_choice": [],
                             "rest_of_plan": [
                               {
@@ -8584,18 +9526,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_outer_2",
+                                      "plan_details": {
+                                        "record_count": 9
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 9,
-                                          "cost": 20.01538086,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 9,
+                                          "rows_after_scan": 9,
+                                          "rows_after_filter": 9,
+                                          "cost": 35.65769043,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 9,
-                                        "cost": 20.01538086,
+                                        "cost": 35.65769043,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -8603,18 +9551,24 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                   {
                                     "best_access_path": {
                                       "table": "t_inner_3",
+                                      "plan_details": {
+                                        "record_count": 9
+                                      },
                                       "considered_access_paths": [
                                         {
-                                          "access_type": "scan",
-                                          "resulting_rows": 9,
-                                          "cost": 20.01538086,
+                                          "access_type": "scan_with_join_cache",
+                                          "rows": 9,
+                                          "rows_after_scan": 9,
+                                          "rows_after_filter": 9,
+                                          "cost": 35.65769043,
+                                          "index_only": false,
                                           "chosen": true
                                         }
                                       ],
                                       "chosen_access_method": {
                                         "type": "scan",
                                         "records": 9,
-                                        "cost": 20.01538086,
+                                        "cost": 35.65769043,
                                         "uses_join_buffering": true
                                       }
                                     }
@@ -8630,11 +9584,11 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_outer_2",
                                 "rows_for_plan": 81,
-                                "cost_for_plan": 58.94614258,
+                                "cost_for_plan": 56.57307129,
                                 "semijoin_strategy_choice": [],
                                 "pruned_by_cost": true,
-                                "current_cost": 58.94614258,
-                                "best_cost": 46.86152344
+                                "current_cost": 56.57307129,
+                                "best_cost": 42.68086172
                               },
                               {
                                 "plan_prefix": [
@@ -8645,11 +9599,11 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                                 ],
                                 "table": "t_inner_3",
                                 "rows_for_plan": 81,
-                                "cost_for_plan": 58.94614258,
+                                "cost_for_plan": 56.57307129,
                                 "semijoin_strategy_choice": [],
                                 "pruned_by_cost": true,
-                                "current_cost": 58.94614258,
-                                "best_cost": 46.86152344
+                                "current_cost": 56.57307129,
+                                "best_cost": 42.68086172
                               }
                             ]
                           },
@@ -8657,7 +9611,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                             "plan_prefix": ["t_outer_1", "t_inner_1", "t_inner_2"],
                             "table": "t_inner_3",
                             "rows_for_plan": 27,
-                            "cost_for_plan": 31.14101563,
+                            "cost_for_plan": 28.72050781,
                             "semijoin_strategy_choice": [],
                             "pruned_by_heuristic": true
                           }
@@ -8667,15 +9621,126 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                         "plan_prefix": ["t_outer_1", "t_inner_1"],
                         "table": "t_inner_4",
                         "rows_for_plan": 27,
-                        "cost_for_plan": 22.81538086,
+                        "cost_for_plan": 15.60769043,
                         "semijoin_strategy_choice": [],
-                        "pruned_by_heuristic": true
+                        "rest_of_plan": [
+                          {
+                            "plan_prefix": ["t_outer_1", "t_inner_1", "t_inner_4"],
+                            "get_costs_for_tables": [
+                              {
+                                "best_access_path": {
+                                  "table": "t_outer_2",
+                                  "plan_details": {
+                                    "record_count": 27
+                                  },
+                                  "considered_access_paths": [
+                                    {
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 9,
+                                      "rows_after_scan": 9,
+                                      "rows_after_filter": 9,
+                                      "cost": 88.30769043,
+                                      "index_only": false,
+                                      "chosen": true
+                                    }
+                                  ],
+                                  "chosen_access_method": {
+                                    "type": "scan",
+                                    "records": 9,
+                                    "cost": 88.30769043,
+                                    "uses_join_buffering": true
+                                  }
+                                }
+                              },
+                              {
+                                "best_access_path": {
+                                  "table": "t_inner_2",
+                                  "plan_details": {
+                                    "record_count": 27
+                                  },
+                                  "considered_access_paths": [
+                                    {
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 9,
+                                      "rows_after_scan": 9,
+                                      "rows_after_filter": 9,
+                                      "cost": 88.30769043,
+                                      "index_only": false,
+                                      "chosen": true
+                                    }
+                                  ],
+                                  "chosen_access_method": {
+                                    "type": "scan",
+                                    "records": 9,
+                                    "cost": 88.30769043,
+                                    "uses_join_buffering": true
+                                  }
+                                }
+                              },
+                              {
+                                "best_access_path": {
+                                  "table": "t_inner_3",
+                                  "plan_details": {
+                                    "record_count": 27
+                                  },
+                                  "considered_access_paths": [
+                                    {
+                                      "access_type": "scan_with_join_cache",
+                                      "rows": 9,
+                                      "rows_after_scan": 9,
+                                      "rows_after_filter": 9,
+                                      "cost": 88.30769043,
+                                      "index_only": false,
+                                      "chosen": true
+                                    }
+                                  ],
+                                  "chosen_access_method": {
+                                    "type": "scan",
+                                    "records": 9,
+                                    "cost": 88.30769043,
+                                    "uses_join_buffering": true
+                                  }
+                                }
+                              }
+                            ]
+                          },
+                          {
+                            "plan_prefix": ["t_outer_1", "t_inner_1", "t_inner_4"],
+                            "table": "t_outer_2",
+                            "rows_for_plan": 243,
+                            "cost_for_plan": 103.9153809,
+                            "semijoin_strategy_choice": [],
+                            "pruned_by_cost": true,
+                            "current_cost": 103.9153809,
+                            "best_cost": 42.68086172
+                          },
+                          {
+                            "plan_prefix": ["t_outer_1", "t_inner_1", "t_inner_4"],
+                            "table": "t_inner_2",
+                            "rows_for_plan": 243,
+                            "cost_for_plan": 103.9153809,
+                            "semijoin_strategy_choice": [],
+                            "pruned_by_cost": true,
+                            "current_cost": 103.9153809,
+                            "best_cost": 42.68086172
+                          },
+                          {
+                            "plan_prefix": ["t_outer_1", "t_inner_1", "t_inner_4"],
+                            "table": "t_inner_3",
+                            "rows_for_plan": 243,
+                            "cost_for_plan": 103.9153809,
+                            "semijoin_strategy_choice": [],
+                            "pruned_by_cost": true,
+                            "current_cost": 103.9153809,
+                            "best_cost": 42.68086172
+                          }
+                        ]
                       },
                       {
                         "plan_prefix": ["t_outer_1", "t_inner_1"],
                         "table": "t_inner_3",
                         "rows_for_plan": 81,
-                        "cost_for_plan": 45.62563477,
+                        "cost_for_plan": 33.31281738,
                         "semijoin_strategy_choice": [],
                         "pruned_by_heuristic": true
                       }
@@ -8685,7 +9750,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                     "plan_prefix": ["t_outer_1"],
                     "table": "t_inner_2",
                     "rows_for_plan": 27,
-                    "cost_for_plan": 17.82050781,
+                    "cost_for_plan": 11.76025391,
                     "semijoin_strategy_choice": [],
                     "pruned_by_heuristic": true
                   },
@@ -8693,7 +9758,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                     "plan_prefix": ["t_outer_1"],
                     "table": "t_inner_4",
                     "rows_for_plan": 9,
-                    "cost_for_plan": 9.410253906,
+                    "cost_for_plan": 5.755126953,
                     "semijoin_strategy_choice": [],
                     "pruned_by_heuristic": true
                   },
@@ -8701,7 +9766,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                     "plan_prefix": ["t_outer_1"],
                     "table": "t_inner_3",
                     "rows_for_plan": 27,
-                    "cost_for_plan": 17.82050781,
+                    "cost_for_plan": 11.76025391,
                     "semijoin_strategy_choice": [],
                     "pruned_by_heuristic": true
                   }
@@ -8711,7 +9776,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                 "plan_prefix": [],
                 "table": "t_outer_2",
                 "rows_for_plan": 9,
-                "cost_for_plan": 5.615380859,
+                "cost_for_plan": 3.25769043,
                 "semijoin_strategy_choice": [],
                 "pruned_by_heuristic": true
               },
@@ -8719,7 +9784,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                 "plan_prefix": [],
                 "table": "t_inner_1",
                 "rows_for_plan": 3,
-                "cost_for_plan": 3.205126953,
+                "cost_for_plan": 1.752563477,
                 "semijoin_strategy_choice": [],
                 "pruned_by_heuristic": true
               },
@@ -8727,7 +9792,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                 "plan_prefix": [],
                 "table": "t_inner_2",
                 "rows_for_plan": 9,
-                "cost_for_plan": 5.615380859,
+                "cost_for_plan": 3.25769043,
                 "semijoin_strategy_choice": [],
                 "pruned_by_heuristic": true
               },
@@ -8735,7 +9800,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                 "plan_prefix": [],
                 "table": "t_inner_4",
                 "rows_for_plan": 3,
-                "cost_for_plan": 3.205126953,
+                "cost_for_plan": 1.752563477,
                 "semijoin_strategy_choice": [],
                 "pruned_by_heuristic": true
               },
@@ -8743,7 +9808,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
                 "plan_prefix": [],
                 "table": "t_inner_3",
                 "rows_for_plan": 9,
-                "cost_for_plan": 5.615380859,
+                "cost_for_plan": 3.25769043,
                 "semijoin_strategy_choice": [],
                 "pruned_by_heuristic": true
               }
@@ -8782,7 +9847,8 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4)	{
               "<subquery2>",
               "<subquery3>"
             ],
-            "cost": 46.86052344
+            "rows": 27,
+            "cost": 42.68076172
           },
           {
             "substitute_best_equal": {
@@ -8886,7 +9952,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 "using_mrr": false,
                 "index_only": true,
                 "rows": 1,
-                "cost": 0.345829876,
+                "cost": 0.745829876,
                 "chosen": true
             }
         ],
@@ -8915,7 +9981,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 "using_mrr": false,
                 "index_only": true,
                 "rows": 107,
-                "cost": 21.63379668,
+                "cost": 24.68379668,
                 "chosen": true
             }
         ],
@@ -8947,7 +10013,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 "using_mrr": false,
                 "index_only": false,
                 "rows": 1000,
-                "cost": 1203.877243,
+                "cost": 756.2522431,
                 "chosen": true
             }
         ],
@@ -8987,7 +10053,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 "using_mrr": false,
                 "index_only": false,
                 "rows": 4,
-                "cost": 4.948710032,
+                "cost": 3.523710032,
                 "chosen": true
             }
         ],
@@ -9021,7 +10087,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 "using_mrr": false,
                 "index_only": false,
                 "rows": 1,
-                "cost": 1.346171589,
+                "cost": 1.271171589,
                 "chosen": true
             }
         ],
@@ -9050,7 +10116,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 "using_mrr": false,
                 "index_only": false,
                 "rows": 1,
-                "cost": 1.346171589,
+                "cost": 1.271171589,
                 "chosen": true
             }
         ],
@@ -9087,7 +10153,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 "using_mrr": false,
                 "index_only": false,
                 "rows": 1,
-                "cost": 1.345927508,
+                "cost": 1.270927508,
                 "chosen": true
             }
         ],
@@ -9117,7 +10183,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 "using_mrr": false,
                 "index_only": false,
                 "rows": 1,
-                "cost": 1.345878692,
+                "cost": 1.270878692,
                 "chosen": true
             }
         ],
@@ -9147,7 +10213,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 "using_mrr": false,
                 "index_only": false,
                 "rows": 1,
-                "cost": 1.345927508,
+                "cost": 1.270927508,
                 "chosen": true
             }
         ],
@@ -9180,7 +10246,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 "using_mrr": false,
                 "index_only": false,
                 "rows": 1,
-                "cost": 1.345878692,
+                "cost": 1.270878692,
                 "chosen": true
             }
         ],
@@ -9216,7 +10282,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 "using_mrr": false,
                 "index_only": false,
                 "rows": 1,
-                "cost": 1.394255553,
+                "cost": 1.319255553,
                 "chosen": true
             }
         ],
@@ -9235,7 +10301,7 @@ INSERT INTO t1 VALUES (2, 'ab\n');
 set optimizer_trace=1;
 EXPLAIN SELECT * FROM t1 WHERE b='ab\n';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	i_b	i_b	13	const	2	Using index condition
+1	SIMPLE	t1	ALL	i_b	NULL	NULL	NULL	2	Using where
 select JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives')) from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
 JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
 [
@@ -9250,8 +10316,9 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 "using_mrr": false,
                 "index_only": false,
                 "rows": 2,
-                "cost": 2.546855016,
-                "chosen": true
+                "cost": 2.021855016,
+                "chosen": false,
+                "cause": "cost"
             }
         ],
         "analyzing_roworder_intersect": 
@@ -9305,7 +10372,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 "using_mrr": false,
                 "index_only": false,
                 "rows": 1000,
-                "cost": 1203.877243,
+                "cost": 756.2522431,
                 "chosen": true
             }
         ],
@@ -9363,12 +10430,19 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                     "best_access_path": 
                     {
                         "table": "A",
+                        "plan_details": 
+                        {
+                            "record_count": 1
+                        },
                         "considered_access_paths": 
                         [
                             {
                                 "access_type": "scan",
-                                "resulting_rows": 5,
-                                "cost": 4.017089844,
+                                "rows": 10,
+                                "rows_after_scan": 5,
+                                "rows_after_filter": 5,
+                                "cost": 3.508544922,
+                                "index_only": false,
                                 "chosen": true
                             }
                         ],
@@ -9376,7 +10450,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                         {
                             "type": "scan",
                             "records": 5,
-                            "cost": 4.017089844,
+                            "cost": 3.508544922,
                             "uses_join_buffering": false
                         }
                     }
@@ -9385,12 +10459,19 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                     "best_access_path": 
                     {
                         "table": "B",
+                        "plan_details": 
+                        {
+                            "record_count": 1
+                        },
                         "considered_access_paths": 
                         [
                             {
                                 "access_type": "scan",
-                                "resulting_rows": 800,
-                                "cost": 204.1972656,
+                                "rows": 1000,
+                                "rows_after_scan": 800,
+                                "rows_after_filter": 800,
+                                "cost": 252.0986328,
+                                "index_only": false,
                                 "chosen": true
                             }
                         ],
@@ -9398,7 +10479,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                         {
                             "type": "scan",
                             "records": 800,
-                            "cost": 204.1972656,
+                            "cost": 252.0986328,
                             "uses_join_buffering": false
                         }
                     }
@@ -9410,7 +10491,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
             [],
             "table": "A",
             "rows_for_plan": 5,
-            "cost_for_plan": 5.017089844,
+            "cost_for_plan": 3.508544922,
             "rest_of_plan": 
             [
                 {
@@ -9422,12 +10503,19 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                             "best_access_path": 
                             {
                                 "table": "B",
+                                "plan_details": 
+                                {
+                                    "record_count": 5
+                                },
                                 "considered_access_paths": 
                                 [
                                     {
                                         "access_type": "scan",
-                                        "resulting_rows": 800,
-                                        "cost": 1820.986328,
+                                        "rows": 1000,
+                                        "rows_after_scan": 800,
+                                        "rows_after_filter": 800,
+                                        "cost": 1260.493164,
+                                        "index_only": false,
                                         "chosen": true
                                     }
                                 ],
@@ -9435,7 +10523,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                                 {
                                     "type": "scan",
                                     "records": 800,
-                                    "cost": 1820.986328,
+                                    "cost": 1260.493164,
                                     "uses_join_buffering": false
                                 }
                             }
@@ -9447,7 +10535,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                     ["A"],
                     "table": "B",
                     "rows_for_plan": 4000,
-                    "cost_for_plan": 2626.003418
+                    "cost_for_plan": 1264.001709
                 }
             ]
         },
@@ -9456,7 +10544,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
             [],
             "table": "B",
             "rows_for_plan": 800,
-            "cost_for_plan": 364.1972656,
+            "cost_for_plan": 252.0986328,
             "pruned_by_heuristic": true
         }
     ]
@@ -9480,12 +10568,19 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                     "best_access_path": 
                     {
                         "table": "A",
+                        "plan_details": 
+                        {
+                            "record_count": 1
+                        },
                         "considered_access_paths": 
                         [
                             {
                                 "access_type": "scan",
-                                "resulting_rows": 10,
-                                "cost": 4.017089844,
+                                "rows": 10,
+                                "rows_after_scan": 10,
+                                "rows_after_filter": 10,
+                                "cost": 3.508544922,
+                                "index_only": false,
                                 "chosen": true
                             }
                         ],
@@ -9493,7 +10588,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                         {
                             "type": "scan",
                             "records": 10,
-                            "cost": 4.017089844,
+                            "cost": 3.508544922,
                             "uses_join_buffering": false
                         }
                     }
@@ -9502,12 +10597,19 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                     "best_access_path": 
                     {
                         "table": "B",
+                        "plan_details": 
+                        {
+                            "record_count": 1
+                        },
                         "considered_access_paths": 
                         [
                             {
                                 "access_type": "scan",
-                                "resulting_rows": 800,
-                                "cost": 204.1972656,
+                                "rows": 1000,
+                                "rows_after_scan": 800,
+                                "rows_after_filter": 800,
+                                "cost": 252.0986328,
+                                "index_only": false,
                                 "chosen": true
                             }
                         ],
@@ -9515,7 +10617,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                         {
                             "type": "scan",
                             "records": 800,
-                            "cost": 204.1972656,
+                            "cost": 252.0986328,
                             "uses_join_buffering": false
                         }
                     }
@@ -9527,7 +10629,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
             [],
             "table": "A",
             "rows_for_plan": 10,
-            "cost_for_plan": 6.017089844,
+            "cost_for_plan": 3.508544922,
             "rest_of_plan": 
             [
                 {
@@ -9539,6 +10641,10 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                             "best_access_path": 
                             {
                                 "table": "B",
+                                "plan_details": 
+                                {
+                                    "record_count": 10
+                                },
                                 "considered_access_paths": 
                                 [
                                     {
@@ -9547,16 +10653,16 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                                         "used_range_estimates": false,
                                         "reason": "not available",
                                         "rows": 1,
-                                        "cond_check_cost": 2.200585794,
-                                        "startup_cost": 0,
-                                        "rows_after_filter": 1,
-                                        "cost": 22.00585794,
+                                        "cost": 12.50585794,
                                         "chosen": true
                                     },
                                     {
-                                        "access_type": "scan",
-                                        "resulting_rows": 600,
-                                        "cost": 1404.197266,
+                                        "access_type": "scan_with_join_cache",
+                                        "rows": 1000,
+                                        "rows_after_scan": 600,
+                                        "rows_after_filter": 600,
+                                        "cost": 1752.098633,
+                                        "index_only": false,
                                         "chosen": false
                                     }
                                 ],
@@ -9564,7 +10670,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                                 {
                                     "type": "ref",
                                     "records": 1,
-                                    "cost": 22.00585794,
+                                    "cost": 12.50585794,
                                     "uses_join_buffering": false
                                 }
                             }
@@ -9576,7 +10682,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                     ["A"],
                     "table": "B",
                     "rows_for_plan": 10,
-                    "cost_for_plan": 30.02294779,
+                    "cost_for_plan": 16.01440287,
                     "selectivity": 0.8,
                     "estimated_join_cardinality": 8
                 }
@@ -9587,10 +10693,10 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
             [],
             "table": "B",
             "rows_for_plan": 800,
-            "cost_for_plan": 364.1972656,
+            "cost_for_plan": 252.0986328,
             "pruned_by_cost": true,
-            "current_cost": 364.1972656,
-            "best_cost": 30.02294779
+            "current_cost": 252.0986328,
+            "best_cost": 16.01450287
         }
     ]
 ]
@@ -9619,7 +10725,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 "using_mrr": false,
                 "index_only": false,
                 "rows": 1,
-                "cost": 1.357887479,
+                "cost": 1.282887479,
                 "chosen": true
             }
         ],
@@ -9644,9 +10750,9 @@ insert into t3 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
 explain 
 select * from t3 where (a,a) in (select t1.a, t2.a from t1, t2 where t1.b=t2.b);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	5	
-1	PRIMARY	t2	eq_ref	PRIMARY	PRIMARY	4	test.t1.a	1	Using where
-1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	10	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	10	Using where
+1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	5	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	t2	eq_ref	PRIMARY	PRIMARY	4	test.t3.a	1	Using where
 select JSON_DETAILED(JSON_EXTRACT(trace, '$**.semijoin_table_pullout')) from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
 JSON_DETAILED(JSON_EXTRACT(trace, '$**.semijoin_table_pullout'))
 [
@@ -9679,7 +10785,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.range_scan_alternatives'))
             "using_mrr": false,
             "index_only": true,
             "rows": 1,
-            "cost": 0.345829876,
+            "cost": 0.745829876,
             "chosen": true
         }
     ]
@@ -9710,12 +10816,19 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                     "best_access_path": 
                     {
                         "table": "t1",
+                        "plan_details": 
+                        {
+                            "record_count": 1
+                        },
                         "considered_access_paths": 
                         [
                             {
                                 "access_type": "scan",
-                                "resulting_rows": 10,
-                                "cost": 4.021972656,
+                                "rows": 10,
+                                "rows_after_scan": 10,
+                                "rows_after_filter": 10,
+                                "cost": 3.510986328,
+                                "index_only": false,
                                 "chosen": true
                             }
                         ],
@@ -9723,7 +10836,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                         {
                             "type": "scan",
                             "records": 10,
-                            "cost": 4.021972656,
+                            "cost": 3.510986328,
                             "uses_join_buffering": false
                         }
                     }
@@ -9732,12 +10845,19 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                     "best_access_path": 
                     {
                         "table": "t2",
+                        "plan_details": 
+                        {
+                            "record_count": 1
+                        },
                         "considered_access_paths": 
                         [
                             {
                                 "access_type": "scan",
-                                "resulting_rows": 100,
-                                "cost": 22.21972656,
+                                "rows": 100,
+                                "rows_after_scan": 100,
+                                "rows_after_filter": 100,
+                                "cost": 26.10986328,
+                                "index_only": false,
                                 "chosen": true,
                                 "use_tmp_table": true
                             }
@@ -9746,7 +10866,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                         {
                             "type": "scan",
                             "records": 100,
-                            "cost": 22.21972656,
+                            "cost": 26.10986328,
                             "uses_join_buffering": false
                         }
                     }
@@ -9758,7 +10878,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
             [],
             "table": "t1",
             "rows_for_plan": 10,
-            "cost_for_plan": 6.021972656,
+            "cost_for_plan": 3.510986328,
             "rest_of_plan": 
             [
                 {
@@ -9770,6 +10890,10 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                             "best_access_path": 
                             {
                                 "table": "t2",
+                                "plan_details": 
+                                {
+                                    "record_count": 10
+                                },
                                 "considered_access_paths": 
                                 [
                                     {
@@ -9778,16 +10902,16 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                                         "used_range_estimates": false,
                                         "reason": "not available",
                                         "rows": 1,
-                                        "cond_check_cost": 2.200585794,
-                                        "startup_cost": 0,
-                                        "rows_after_filter": 1,
-                                        "cost": 22.00585794,
+                                        "cost": 12.50585794,
                                         "chosen": true
                                     },
                                     {
-                                        "access_type": "scan",
-                                        "resulting_rows": 75,
-                                        "cost": 172.2197266,
+                                        "access_type": "scan_with_join_cache",
+                                        "rows": 100,
+                                        "rows_after_scan": 75,
+                                        "rows_after_filter": 75,
+                                        "cost": 213.6098633,
+                                        "index_only": false,
                                         "chosen": false
                                     }
                                 ],
@@ -9795,7 +10919,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                                 {
                                     "type": "ref",
                                     "records": 1,
-                                    "cost": 22.00585794,
+                                    "cost": 12.50585794,
                                     "uses_join_buffering": false
                                 }
                             }
@@ -9807,7 +10931,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                     ["t1"],
                     "table": "t2",
                     "rows_for_plan": 10,
-                    "cost_for_plan": 30.0278306,
+                    "cost_for_plan": 16.01684427,
                     "cost_for_sorting": 10
                 }
             ]
@@ -9817,10 +10941,10 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
             [],
             "table": "t2",
             "rows_for_plan": 100,
-            "cost_for_plan": 42.21972656,
+            "cost_for_plan": 26.10986328,
             "pruned_by_cost": true,
-            "current_cost": 42.21972656,
-            "best_cost": 40.0278306
+            "current_cost": 26.10986328,
+            "best_cost": 26.01694427
         }
     ]
 ]
@@ -9918,7 +11042,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.range_scan_alternatives'))
             "using_mrr": false,
             "index_only": false,
             "rows": 0,
-            "cost": 0.145,
+            "cost": 0.52,
             "chosen": true
         }
     ]
@@ -10020,7 +11144,8 @@ select count(*) from seq_1_to_10000000	{
                 "table": "seq_1_to_10000000",
                 "table_scan": {
                   "rows": 10000000,
-                  "cost": 10000000
+                  "read_cost": 5000000,
+                  "read_and_compare_cost": 7250000
                 }
               }
             ]
@@ -10033,18 +11158,24 @@ select count(*) from seq_1_to_10000000	{
                   {
                     "best_access_path": {
                       "table": "seq_1_to_10000000",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 10000000,
-                          "cost": 12000000,
+                          "rows": 10000000,
+                          "rows_after_scan": 10000000,
+                          "rows_after_filter": 10000000,
+                          "cost": 7250000,
+                          "index_only": true,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 10000000,
-                        "cost": 12000000,
+                        "cost": 7250000,
                         "uses_join_buffering": false
                       }
                     }
@@ -10055,13 +11186,14 @@ select count(*) from seq_1_to_10000000	{
                 "plan_prefix": [],
                 "table": "seq_1_to_10000000",
                 "rows_for_plan": 10000000,
-                "cost_for_plan": 14000000
+                "cost_for_plan": 7250000
               }
             ]
           },
           {
             "best_join_order": ["seq_1_to_10000000"],
-            "cost": 14000000
+            "rows": 10000000,
+            "cost": 7250000
           },
           {
             "attaching_conditions_to_tables": {
@@ -10124,9 +11256,8 @@ set @tmp=@@in_predicate_conversion_threshold;
 set in_predicate_conversion_threshold=3;
 explain select * from t0 where a in (1,2,3,4,5,6);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t0	ALL	NULL	NULL	NULL	NULL	10	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	<derived3>	ALL	NULL	NULL	NULL	NULL	6	
+1	PRIMARY	t0	ALL	NULL	NULL	NULL	NULL	10	Using where
+1	PRIMARY	<derived3>	ref	key0	key0	4	test.t0.a	2	FirstMatch(t0)
 3	DERIVED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 select json_detailed(json_extract(trace, '$**.in_to_subquery_conversion'))
 from information_schema.optimizer_trace;
@@ -10210,9 +11341,9 @@ create table t3 (a int, b int, c int);
 insert into t3 values (0,0,0),(1,1,1),(2,2,2),(3,3,3),(4,4,4);
 explain select * from t2,t1,t3 where t2.b= t1.b and t1.a=t3.a;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	2	
-1	SIMPLE	t1	index	PRIMARY	PRIMARY	12	NULL	5	Using where; Using index; Using join buffer (flat, BNL join)
-1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	5	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	2	Using where
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	5	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t1	ref	PRIMARY	PRIMARY	8	test.t3.a,test.t2.b	1	Using index
 set @trace=(select trace from information_schema.optimizer_trace);
 set @path= (select json_search(@trace, 'one', 'no predicate for first keypart'));
 set @sub_path= substr(@path, 2, locate('.best_access_path', @path)-2);
@@ -10410,6 +11541,10 @@ json_detailed(json_extract(trace, '$**.choose_best_splitting'))
                             "best_access_path": 
                             {
                                 "table": "t2",
+                                "plan_details": 
+                                {
+                                    "record_count": 1
+                                },
                                 "considered_access_paths": 
                                 [
                                     {
@@ -10418,10 +11553,7 @@ json_detailed(json_extract(trace, '$**.choose_best_splitting'))
                                         "used_range_estimates": false,
                                         "reason": "not available",
                                         "rows": 1.8367,
-                                        "cond_check_cost": 2.367925794,
-                                        "startup_cost": 0,
-                                        "rows_after_filter": 1.8367,
-                                        "cost": 2.367925794,
+                                        "cost": 1.417925794,
                                         "chosen": true
                                     },
                                     {
@@ -10434,7 +11566,7 @@ json_detailed(json_extract(trace, '$**.choose_best_splitting'))
                                 {
                                     "type": "ref",
                                     "records": 1.8367,
-                                    "cost": 2.367925794,
+                                    "cost": 1.417925794,
                                     "uses_join_buffering": false
                                 }
                             }
@@ -10446,7 +11578,7 @@ json_detailed(json_extract(trace, '$**.choose_best_splitting'))
                     [],
                     "table": "t2",
                     "rows_for_plan": 1.8367,
-                    "cost_for_plan": 2.735265794,
+                    "cost_for_plan": 1.417925794,
                     "cost_for_sorting": 1.8367
                 }
             ]
@@ -10457,8 +11589,8 @@ json_detailed(json_extract(trace, '$**.choose_best_splitting'))
                 "table": "t2",
                 "key": "idx_a",
                 "record_count": 4,
-                "cost": 2.856285919,
-                "unsplit_cost": 43.72361682
+                "cost": 3.651150919,
+                "unsplit_cost": 46.6794762
             }
         }
     ]
@@ -10470,8 +11602,8 @@ information_schema.optimizer_trace;
 json_detailed(json_extract(trace, '$**.lateral_derived'))
 [
     {
-        "startup_cost": 11.42514368,
-        "splitting_cost": 2.856285919,
+        "startup_cost": 14.60460368,
+        "splitting_cost": 3.651150919,
         "records": 1
     }
 ]
diff --git a/mysql-test/main/opt_trace_index_merge.result b/mysql-test/main/opt_trace_index_merge.result
index 5944bfc8c3f..5407af41fd5 100644
--- a/mysql-test/main/opt_trace_index_merge.result
+++ b/mysql-test/main/opt_trace_index_merge.result
@@ -73,7 +73,7 @@ explain select * from t1 where a=1 or b=1	{
                 "range_analysis": {
                   "table_scan": {
                     "rows": 1000,
-                    "cost": 231.5878906
+                    "cost": 264.7939453
                   },
                   "potential_range_indexes": [
                     {
@@ -111,12 +111,12 @@ explain select * from t1 where a=1 or b=1	{
                                 "using_mrr": false,
                                 "index_only": true,
                                 "rows": 1,
-                                "cost": 0.345585794,
+                                "cost": 0.745585794,
                                 "chosen": true
                               }
                             ],
                             "index_to_merge": "a",
-                            "cumulated_cost": 0.345585794
+                            "cumulated_cost": 0.745585794
                           },
                           {
                             "range_scan_alternatives": [
@@ -127,15 +127,15 @@ explain select * from t1 where a=1 or b=1	{
                                 "using_mrr": false,
                                 "index_only": true,
                                 "rows": 1,
-                                "cost": 0.345585794,
+                                "cost": 0.745585794,
                                 "chosen": true
                               }
                             ],
                             "index_to_merge": "b",
-                            "cumulated_cost": 0.691171589
+                            "cumulated_cost": 1.491171589
                           }
                         ],
-                        "cost_of_reading_ranges": 0.691171589,
+                        "cost_of_reading_ranges": 1.491171589,
                         "use_roworder_union": true,
                         "cause": "always cheaper than non roworder retrieval",
                         "analyzing_roworder_scans": [
@@ -158,7 +158,7 @@ explain select * from t1 where a=1 or b=1	{
                             }
                           }
                         ],
-                        "index_roworder_union_cost": 2.484903732,
+                        "index_roworder_union_cost": 2.595171589,
                         "members": 2,
                         "chosen": true
                       }
@@ -187,7 +187,7 @@ explain select * from t1 where a=1 or b=1	{
                       ]
                     },
                     "rows_for_plan": 2,
-                    "cost_for_plan": 2.484903732,
+                    "cost_for_plan": 2.595171589,
                     "chosen": true
                   }
                 }
@@ -211,18 +211,23 @@ explain select * from t1 where a=1 or b=1	{
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "index_merge",
-                          "resulting_rows": 2,
-                          "cost": 2.484903732,
+                          "rows": 2,
+                          "rows_after_scan": 2,
+                          "rows_after_filter": 2,
+                          "cost": 2.595171589,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "index_merge",
                         "records": 2,
-                        "cost": 2.484903732,
+                        "cost": 2.595171589,
                         "uses_join_buffering": false
                       }
                     }
@@ -233,13 +238,14 @@ explain select * from t1 where a=1 or b=1	{
                 "plan_prefix": [],
                 "table": "t1",
                 "rows_for_plan": 2,
-                "cost_for_plan": 2.884903732
+                "cost_for_plan": 2.595171589
               }
             ]
           },
           {
             "best_join_order": ["t1"],
-            "cost": 2.883903732
+            "rows": 2,
+            "cost": 2.595171589
           },
           {
             "substitute_best_equal": {
@@ -320,7 +326,7 @@ set optimizer_trace='enabled=on';
 #  3-way ROR-intersection
 explain select key1,key2,key3 from t1 where key1=100 and key2=100 and key3=100;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	index_merge	key1,key2,key3	key1,key2,key3	5,5,5	NULL	2	Using intersect(key1,key2,key3); Using where; Using index
+1	SIMPLE	t1	index_merge	key1,key2,key3	key1,key2	5,5	NULL	77	Using intersect(key1,key2); Using where
 select JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives')) from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
 JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
 [
@@ -335,7 +341,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 "using_mrr": false,
                 "index_only": false,
                 "rows": 2243,
-                "cost": 2700.058937,
+                "cost": 1695.083937,
                 "chosen": true
             },
             {
@@ -346,7 +352,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 "using_mrr": false,
                 "index_only": false,
                 "rows": 2243,
-                "cost": 2700.058937,
+                "cost": 1695.083937,
                 "chosen": false,
                 "cause": "cost"
             },
@@ -358,7 +364,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 "using_mrr": false,
                 "index_only": false,
                 "rows": 2243,
-                "cost": 2700.058937,
+                "cost": 1695.083937,
                 "chosen": false,
                 "cause": "cost"
             }
@@ -369,10 +375,10 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
             [
                 {
                     "index": "key1",
-                    "index_scan_cost": 10.31393703,
-                    "cumulated_index_scan_cost": 10.31393703,
-                    "disk_sweep_cost": 1923.144061,
-                    "cumulative_total_cost": 1933.457998,
+                    "index_scan_cost": 61.88893703,
+                    "cumulated_index_scan_cost": 61.88893703,
+                    "disk_sweep_cost": 1682.25,
+                    "cumulative_total_cost": 1744.138937,
                     "usable": true,
                     "matching_rows_now": 2243,
                     "intersect_covering_with_this_index": false,
@@ -380,10 +386,10 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 },
                 {
                     "index": "key2",
-                    "index_scan_cost": 10.31393703,
-                    "cumulated_index_scan_cost": 20.62787405,
-                    "disk_sweep_cost": 84.51771758,
-                    "cumulative_total_cost": 105.1455916,
+                    "index_scan_cost": 61.88893703,
+                    "cumulated_index_scan_cost": 123.7778741,
+                    "disk_sweep_cost": 57.75,
+                    "cumulative_total_cost": 181.5278741,
                     "usable": true,
                     "matching_rows_now": 77.6360508,
                     "intersect_covering_with_this_index": false,
@@ -391,14 +397,15 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 },
                 {
                     "index": "key3",
-                    "index_scan_cost": 10.31393703,
-                    "cumulated_index_scan_cost": 30.94181108,
+                    "index_scan_cost": 61.88893703,
+                    "cumulated_index_scan_cost": 185.6668111,
                     "disk_sweep_cost": 0,
-                    "cumulative_total_cost": 30.94181108,
+                    "cumulative_total_cost": 185.6668111,
                     "usable": true,
                     "matching_rows_now": 2.687185191,
                     "intersect_covering_with_this_index": true,
-                    "chosen": true
+                    "chosen": false,
+                    "cause": "does not reduce cost"
                 }
             ],
             "clustered_pk": 
@@ -406,9 +413,9 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 "clustered_pk_added_to_intersect": false,
                 "cause": "no clustered pk index"
             },
-            "rows": 2,
-            "cost": 30.94181108,
-            "covering": true,
+            "rows": 77,
+            "cost": 197.0550842,
+            "covering": false,
             "chosen": true
         },
         "analyzing_index_merge_union": 
@@ -422,9 +429,9 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.chosen_range_access_summary'))
         "range_access_plan": 
         {
             "type": "index_roworder_intersect",
-            "rows": 2,
-            "cost": 30.94181108,
-            "covering": true,
+            "rows": 77,
+            "cost": 197.0550842,
+            "covering": false,
             "clustered_pk_scan": false,
             "intersect_of": 
             [
@@ -441,18 +448,11 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.chosen_range_access_summary'))
                     "rows": 2243,
                     "ranges": 
                     ["(100) <= (key2) <= (100)"]
-                },
-                {
-                    "type": "range_scan",
-                    "index": "key3",
-                    "rows": 2243,
-                    "ranges": 
-                    ["(100) <= (key3) <= (100)"]
                 }
             ]
         },
-        "rows_for_plan": 2,
-        "cost_for_plan": 30.94181108,
+        "rows_for_plan": 77,
+        "cost_for_plan": 197.0550842,
         "chosen": true
     }
 ]
@@ -486,7 +486,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                                 "using_mrr": false,
                                 "index_only": true,
                                 "rows": 2243,
-                                "cost": 457.058937,
+                                "cost": 517.508937,
                                 "chosen": true
                             },
                             {
@@ -497,13 +497,13 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                                 "using_mrr": false,
                                 "index_only": true,
                                 "rows": 2243,
-                                "cost": 457.058937,
+                                "cost": 517.508937,
                                 "chosen": false,
                                 "cause": "cost"
                             }
                         ],
                         "index_to_merge": "key1",
-                        "cumulated_cost": 457.058937
+                        "cumulated_cost": 517.508937
                     },
                     {
                         "range_scan_alternatives": 
@@ -516,7 +516,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                                 "using_mrr": false,
                                 "index_only": true,
                                 "rows": 2243,
-                                "cost": 457.058937,
+                                "cost": 517.508937,
                                 "chosen": true
                             },
                             {
@@ -527,16 +527,16 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                                 "using_mrr": false,
                                 "index_only": true,
                                 "rows": 2243,
-                                "cost": 457.058937,
+                                "cost": 517.508937,
                                 "chosen": false,
                                 "cause": "cost"
                             }
                         ],
                         "index_to_merge": "key3",
-                        "cumulated_cost": 914.1178741
+                        "cumulated_cost": 1035.017874
                     }
                 ],
-                "cost_of_reading_ranges": 914.1178741,
+                "cost_of_reading_ranges": 1035.017874,
                 "use_roworder_union": true,
                 "cause": "always cheaper than non roworder retrieval",
                 "analyzing_roworder_scans": 
@@ -553,10 +553,10 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                             [
                                 {
                                     "index": "key1",
-                                    "index_scan_cost": 10.31393703,
-                                    "cumulated_index_scan_cost": 10.31393703,
-                                    "disk_sweep_cost": 1923.144061,
-                                    "cumulative_total_cost": 1933.457998,
+                                    "index_scan_cost": 61.88893703,
+                                    "cumulated_index_scan_cost": 61.88893703,
+                                    "disk_sweep_cost": 1682.25,
+                                    "cumulative_total_cost": 1744.138937,
                                     "usable": true,
                                     "matching_rows_now": 2243,
                                     "intersect_covering_with_this_index": false,
@@ -564,10 +564,10 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                                 },
                                 {
                                     "index": "key2",
-                                    "index_scan_cost": 10.31393703,
-                                    "cumulated_index_scan_cost": 20.62787405,
-                                    "disk_sweep_cost": 84.51771758,
-                                    "cumulative_total_cost": 105.1455916,
+                                    "index_scan_cost": 61.88893703,
+                                    "cumulated_index_scan_cost": 123.7778741,
+                                    "disk_sweep_cost": 57.75,
+                                    "cumulative_total_cost": 181.5278741,
                                     "usable": true,
                                     "matching_rows_now": 77.6360508,
                                     "intersect_covering_with_this_index": false,
@@ -580,7 +580,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                                 "cause": "no clustered pk index"
                             },
                             "rows": 77,
-                            "cost": 105.1455916,
+                            "cost": 197.0550842,
                             "covering": false,
                             "chosen": true
                         }
@@ -597,10 +597,10 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                             [
                                 {
                                     "index": "key3",
-                                    "index_scan_cost": 10.31393703,
-                                    "cumulated_index_scan_cost": 10.31393703,
-                                    "disk_sweep_cost": 1923.144061,
-                                    "cumulative_total_cost": 1933.457998,
+                                    "index_scan_cost": 61.88893703,
+                                    "cumulated_index_scan_cost": 61.88893703,
+                                    "disk_sweep_cost": 1682.25,
+                                    "cumulative_total_cost": 1744.138937,
                                     "usable": true,
                                     "matching_rows_now": 2243,
                                     "intersect_covering_with_this_index": false,
@@ -608,10 +608,10 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                                 },
                                 {
                                     "index": "key4",
-                                    "index_scan_cost": 10.31393703,
-                                    "cumulated_index_scan_cost": 20.62787405,
-                                    "disk_sweep_cost": 84.51771758,
-                                    "cumulative_total_cost": 105.1455916,
+                                    "index_scan_cost": 61.88893703,
+                                    "cumulated_index_scan_cost": 123.7778741,
+                                    "disk_sweep_cost": 57.75,
+                                    "cumulative_total_cost": 181.5278741,
                                     "usable": true,
                                     "matching_rows_now": 77.6360508,
                                     "intersect_covering_with_this_index": false,
@@ -624,13 +624,13 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                                 "cause": "no clustered pk index"
                             },
                             "rows": 77,
-                            "cost": 105.1455916,
+                            "cost": 197.0550842,
                             "covering": false,
                             "chosen": true
                         }
                     }
                 ],
-                "index_roworder_union_cost": 194.9771115,
+                "index_roworder_union_cost": 332.5637481,
                 "members": 2,
                 "chosen": true
             }
@@ -649,7 +649,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.chosen_range_access_summary'))
                 {
                     "type": "index_roworder_intersect",
                     "rows": 77,
-                    "cost": 105.1455916,
+                    "cost": 197.0550842,
                     "covering": false,
                     "clustered_pk_scan": false,
                     "intersect_of": 
@@ -673,7 +673,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.chosen_range_access_summary'))
                 {
                     "type": "index_roworder_intersect",
                     "rows": 77,
-                    "cost": 105.1455916,
+                    "cost": 197.0550842,
                     "covering": false,
                     "clustered_pk_scan": false,
                     "intersect_of": 
@@ -697,7 +697,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.chosen_range_access_summary'))
             ]
         },
         "rows_for_plan": 154,
-        "cost_for_plan": 194.9771115,
+        "cost_for_plan": 332.5637481,
         "chosen": true
     }
 ]
diff --git a/mysql-test/main/opt_trace_index_merge_innodb.result b/mysql-test/main/opt_trace_index_merge_innodb.result
index 495ade7cd32..b7390cff757 100644
--- a/mysql-test/main/opt_trace_index_merge_innodb.result
+++ b/mysql-test/main/opt_trace_index_merge_innodb.result
@@ -89,7 +89,7 @@ explain select * from t1 where pk1 != 0  and key1 = 1	{
                 "range_analysis": {
                   "table_scan": {
                     "rows": 1000,
-                    "cost": 206
+                    "cost": 253
                   },
                   "potential_range_indexes": [
                     {
@@ -118,7 +118,7 @@ explain select * from t1 where pk1 != 0  and key1 = 1	{
                         "using_mrr": false,
                         "index_only": false,
                         "rows": 1000,
-                        "cost": 204.27,
+                        "cost": 252.02,
                         "chosen": true
                       },
                       {
@@ -128,7 +128,7 @@ explain select * from t1 where pk1 != 0  and key1 = 1	{
                         "using_mrr": false,
                         "index_only": false,
                         "rows": 1,
-                        "cost": 1.345146475,
+                        "cost": 1.270146475,
                         "chosen": true
                       }
                     ],
@@ -136,10 +136,10 @@ explain select * from t1 where pk1 != 0  and key1 = 1	{
                       "intersecting_indexes": [
                         {
                           "index": "key1",
-                          "index_scan_cost": 1.000146475,
-                          "cumulated_index_scan_cost": 1.000146475,
-                          "disk_sweep_cost": 1.004153686,
-                          "cumulative_total_cost": 2.004300162,
+                          "index_scan_cost": 0.525146475,
+                          "cumulated_index_scan_cost": 0.525146475,
+                          "disk_sweep_cost": 0.752076843,
+                          "cumulative_total_cost": 1.277223319,
                           "usable": true,
                           "matching_rows_now": 1,
                           "intersect_covering_with_this_index": false,
@@ -167,7 +167,7 @@ explain select * from t1 where pk1 != 0  and key1 = 1	{
                       "ranges": ["(1) <= (key1) <= (1)"]
                     },
                     "rows_for_plan": 1,
-                    "cost_for_plan": 1.345146475,
+                    "cost_for_plan": 1.270146475,
                     "chosen": true
                   }
                 }
@@ -177,7 +177,7 @@ explain select * from t1 where pk1 != 0  and key1 = 1	{
                 "rowid_filters": [
                   {
                     "key": "key1",
-                    "build_cost": 0.130146475,
+                    "build_cost": 0.526146475,
                     "rows": 1
                   }
                 ]
@@ -206,16 +206,16 @@ explain select * from t1 where pk1 != 0  and key1 = 1	{
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "ref",
                           "index": "key1",
                           "used_range_estimates": true,
                           "rows": 1,
-                          "cond_check_cost": 1.325146475,
-                          "startup_cost": 0,
-                          "rows_after_filter": 1,
-                          "cost": 1.325146475,
+                          "cost": 1.250146475,
                           "chosen": true
                         },
                         {
@@ -227,7 +227,7 @@ explain select * from t1 where pk1 != 0  and key1 = 1	{
                       "chosen_access_method": {
                         "type": "ref",
                         "records": 1,
-                        "cost": 1.325146475,
+                        "cost": 1.250146475,
                         "uses_join_buffering": false
                       }
                     }
@@ -238,13 +238,14 @@ explain select * from t1 where pk1 != 0  and key1 = 1	{
                 "plan_prefix": [],
                 "table": "t1",
                 "rows_for_plan": 1,
-                "cost_for_plan": 1.525146475
+                "cost_for_plan": 1.250146475
               }
             ]
           },
           {
             "best_join_order": ["t1"],
-            "cost": 1.524146475
+            "rows": 1,
+            "cost": 1.250146475
           },
           {
             "substitute_best_equal": {
diff --git a/mysql-test/main/opt_trace_security.result b/mysql-test/main/opt_trace_security.result
index ed828cda438..414ff2e4a0b 100644
--- a/mysql-test/main/opt_trace_security.result
+++ b/mysql-test/main/opt_trace_security.result
@@ -80,7 +80,8 @@ select * from db1.t1	{
                 "table": "t1",
                 "table_scan": {
                   "rows": 3,
-                  "cost": 2.005126953
+                  "read_cost": 1.002563477,
+                  "read_and_compare_cost": 1.752563477
                 }
               }
             ]
@@ -93,18 +94,24 @@ select * from db1.t1	{
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 3,
-                          "cost": 2.605126953,
+                          "rows": 3,
+                          "rows_after_scan": 3,
+                          "rows_after_filter": 3,
+                          "cost": 1.752563477,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 3,
-                        "cost": 2.605126953,
+                        "cost": 1.752563477,
                         "uses_join_buffering": false
                       }
                     }
@@ -115,13 +122,14 @@ select * from db1.t1	{
                 "plan_prefix": [],
                 "table": "t1",
                 "rows_for_plan": 3,
-                "cost_for_plan": 3.205126953
+                "cost_for_plan": 1.752563477
               }
             ]
           },
           {
             "best_join_order": ["t1"],
-            "cost": 3.204126953
+            "rows": 3,
+            "cost": 1.752563477
           },
           {
             "attaching_conditions_to_tables": {
@@ -210,7 +218,8 @@ select * from db1.v1	{
                 "table": "t1",
                 "table_scan": {
                   "rows": 3,
-                  "cost": 2.005126953
+                  "read_cost": 1.002563477,
+                  "read_and_compare_cost": 1.752563477
                 }
               }
             ]
@@ -223,18 +232,24 @@ select * from db1.v1	{
                   {
                     "best_access_path": {
                       "table": "t1",
+                      "plan_details": {
+                        "record_count": 1
+                      },
                       "considered_access_paths": [
                         {
                           "access_type": "scan",
-                          "resulting_rows": 3,
-                          "cost": 2.605126953,
+                          "rows": 3,
+                          "rows_after_scan": 3,
+                          "rows_after_filter": 3,
+                          "cost": 1.752563477,
+                          "index_only": false,
                           "chosen": true
                         }
                       ],
                       "chosen_access_method": {
                         "type": "scan",
                         "records": 3,
-                        "cost": 2.605126953,
+                        "cost": 1.752563477,
                         "uses_join_buffering": false
                       }
                     }
@@ -245,13 +260,14 @@ select * from db1.v1	{
                 "plan_prefix": [],
                 "table": "t1",
                 "rows_for_plan": 3,
-                "cost_for_plan": 3.205126953
+                "cost_for_plan": 1.752563477
               }
             ]
           },
           {
             "best_join_order": ["t1"],
-            "cost": 3.204126953
+            "rows": 3,
+            "cost": 1.752563477
           },
           {
             "attaching_conditions_to_tables": {
diff --git a/mysql-test/main/opt_trace_selectivity.result b/mysql-test/main/opt_trace_selectivity.result
index 44f4ad9bb90..bed10cd56e1 100644
--- a/mysql-test/main/opt_trace_selectivity.result
+++ b/mysql-test/main/opt_trace_selectivity.result
@@ -42,6 +42,10 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                     "best_access_path": 
                     {
                         "table": "t1",
+                        "plan_details": 
+                        {
+                            "record_count": 1
+                        },
                         "considered_access_paths": 
                         [
                             {
@@ -49,10 +53,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                                 "index": "a",
                                 "used_range_estimates": true,
                                 "rows": 104,
-                                "cond_check_cost": 124.96562,
-                                "startup_cost": 0,
-                                "rows_after_filter": 104,
-                                "cost": 124.96562,
+                                "cost": 78.54062004,
                                 "chosen": true
                             },
                             {
@@ -60,10 +61,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                                 "index": "b",
                                 "used_range_estimates": true,
                                 "rows": 340,
-                                "cond_check_cost": 408.2577963,
-                                "startup_cost": 0,
-                                "rows_after_filter": 340,
-                                "cost": 408.2577963,
+                                "cost": 255.6327963,
                                 "chosen": false,
                                 "cause": "cost"
                             },
@@ -72,17 +70,16 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                                 "index": "c",
                                 "used_range_estimates": true,
                                 "rows": 632,
-                                "cond_check_cost": 758.7718449,
-                                "startup_cost": 0,
-                                "rows_after_filter": 632,
-                                "cost": 758.7718449,
+                                "cost": 475.2468449,
                                 "chosen": false,
                                 "cause": "cost"
                             },
                             {
                                 "access_type": "index_merge",
-                                "resulting_rows": 7,
-                                "cost": 2.173416331,
+                                "rows": 7,
+                                "rows_after_scan": 7,
+                                "rows_after_filter": 7,
+                                "cost": 13.79559815,
                                 "chosen": true
                             }
                         ],
@@ -90,7 +87,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                         {
                             "type": "index_merge",
                             "records": 7,
-                            "cost": 2.173416331,
+                            "cost": 13.79559815,
                             "uses_join_buffering": false
                         }
                     }
@@ -102,7 +99,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
             [],
             "table": "t1",
             "rows_for_plan": 7,
-            "cost_for_plan": 3.573416331
+            "cost_for_plan": 13.79559815
         }
     ]
 ]
@@ -139,6 +136,10 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                     "best_access_path": 
                     {
                         "table": "t1",
+                        "plan_details": 
+                        {
+                            "record_count": 1
+                        },
                         "considered_access_paths": 
                         [
                             {
@@ -146,10 +147,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                                 "index": "a",
                                 "used_range_estimates": true,
                                 "rows": 6,
-                                "cond_check_cost": 7.327343464,
-                                "startup_cost": 0,
-                                "rows_after_filter": 6,
-                                "cost": 7.327343464,
+                                "cost": 5.002343464,
                                 "chosen": true
                             },
                             {
@@ -157,10 +155,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                                 "index": "b",
                                 "used_range_estimates": true,
                                 "rows": 232,
-                                "cond_check_cost": 278.6156139,
-                                "startup_cost": 0,
-                                "rows_after_filter": 232,
-                                "cost": 278.6156139,
+                                "cost": 174.5906139,
                                 "chosen": false,
                                 "cause": "cost"
                             },
@@ -169,25 +164,21 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
                                 "index": "c",
                                 "used_range_estimates": true,
                                 "rows": 293,
-                                "cond_check_cost": 351.8394392,
-                                "startup_cost": 0,
-                                "rows_after_filter": 293,
-                                "cost": 351.8394392,
+                                "cost": 220.3644392,
                                 "chosen": false,
                                 "cause": "cost"
                             },
                             {
-                                "access_type": "index_merge",
-                                "resulting_rows": 1,
-                                "cost": 2.092957403,
-                                "chosen": true
+                                "type": "scan",
+                                "chosen": false,
+                                "cause": "cost"
                             }
                         ],
                         "chosen_access_method": 
                         {
-                            "type": "index_merge",
-                            "records": 1,
-                            "cost": 2.092957403,
+                            "type": "ref",
+                            "records": 6,
+                            "cost": 5.002343464,
                             "uses_join_buffering": false
                         }
                     }
@@ -198,8 +189,10 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans'))
             "plan_prefix": 
             [],
             "table": "t1",
-            "rows_for_plan": 1,
-            "cost_for_plan": 2.292957403
+            "rows_for_plan": 6,
+            "cost_for_plan": 5.002343464,
+            "selectivity": 0.1,
+            "estimated_join_cardinality": 0.6
         }
     ]
 ]
diff --git a/mysql-test/main/opt_trace_selectivity.test b/mysql-test/main/opt_trace_selectivity.test
index 4d59d4974cd..3ebf4d97ed9 100644
--- a/mysql-test/main/opt_trace_selectivity.test
+++ b/mysql-test/main/opt_trace_selectivity.test
@@ -19,7 +19,9 @@ select count(*) from t1 where c=5 and b=5;
 
 set optimizer_trace="enabled=on";
 select count(*) from t1 where a=2 and b=5 and c=10;
+
 select JSON_DETAILED(JSON_EXTRACT(trace, '$**.considered_execution_plans')) from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
+
 select JSON_DETAILED(JSON_EXTRACT(trace, '$**.selectivity_for_indexes')) from INFORMATION_SCHEMA.OPTIMIZER_TRACE;
 
 select count(*) from t1 where a=2 and b=5 and c=5;
diff --git a/mysql-test/main/opt_trace_ucs2.result b/mysql-test/main/opt_trace_ucs2.result
index 9e4f25f3150..0b7506d6c5f 100644
--- a/mysql-test/main/opt_trace_ucs2.result
+++ b/mysql-test/main/opt_trace_ucs2.result
@@ -38,7 +38,7 @@ JSON_DETAILED(JSON_EXTRACT(trace, '$**.analyzing_range_alternatives'))
                 "using_mrr": false,
                 "index_only": false,
                 "rows": 2,
-                "cost": 2.547733708,
+                "cost": 2.022733708,
                 "chosen": true
             }
         ],
diff --git a/mysql-test/main/opt_tvc.result b/mysql-test/main/opt_tvc.result
index 504038954b2..7c4d02fb09d 100644
--- a/mysql-test/main/opt_tvc.result
+++ b/mysql-test/main/opt_tvc.result
@@ -150,8 +150,8 @@ from t2 where b in (3,4)
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	6	100.00	
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	6	100.00	Using where
-2	MATERIALIZED	<derived4>	ref	key0	key0	4	test.t2.b	2	100.00	
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	6	100.00	
+2	MATERIALIZED	<derived4>	ALL	NULL	NULL	NULL	NULL	2	75.00	Using where; Using join buffer (flat, BNL join)
 4	DERIVED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
 Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (3),(4)) `tvc_0` join `test`.`t2`) where `tvc_0`.`_col_1` = `test`.`t2`.`b`
@@ -168,8 +168,8 @@ from (values (3),(4)) as tvc_0
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	6	100.00	
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	6	100.00	Using where
-2	MATERIALIZED	<derived4>	ref	key0	key0	4	test.t2.b	2	100.00	
+2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	6	100.00	
+2	MATERIALIZED	<derived4>	ALL	NULL	NULL	NULL	NULL	2	75.00	Using where; Using join buffer (flat, BNL join)
 4	DERIVED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
 Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (3),(4)) `tvc_0` join `test`.`t2`) where `tvc_0`.`3` = `test`.`t2`.`b`
@@ -382,8 +382,8 @@ as dr_table
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	6	100.00	Using where
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	6	100.00	Using where
-2	MATERIALIZED	<derived5>	ref	key0	key0	4	test.t1.a	2	100.00	
+2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	6	100.00	
+2	MATERIALIZED	<derived5>	ALL	NULL	NULL	NULL	NULL	2	75.00	Using where; Using join buffer (flat, BNL join)
 5	DERIVED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
 Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1),(2)) `tvc_0` join `test`.`t1`) where `test`.`t1`.`a` = 1 and `tvc_0`.`_col_1` = `test`.`t1`.`a`
@@ -407,8 +407,8 @@ as dr_table
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	6	100.00	Using where
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	6	100.00	Using where
-2	MATERIALIZED	<derived5>	ref	key0	key0	4	test.t1.a	2	100.00	
+2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	6	100.00	
+2	MATERIALIZED	<derived5>	ALL	NULL	NULL	NULL	NULL	2	75.00	Using where; Using join buffer (flat, BNL join)
 5	DERIVED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
 Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1),(2)) `tvc_0` join `test`.`t1`) where `test`.`t1`.`a` = 1 and `tvc_0`.`1` = `test`.`t1`.`a`
@@ -444,7 +444,7 @@ where b in (3,5)
 group by b
 ) as dr_table;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	<derived2>	ALL	NULL	NULL	NULL	NULL	12	100.00	
+1	PRIMARY	<derived2>	ALL	NULL	NULL	NULL	NULL	9	100.00	
 2	DERIVED	t1	ALL	NULL	NULL	NULL	NULL	6	100.00	Using temporary; Using filesort
 2	DERIVED	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
 3	MATERIALIZED	<derived4>	ALL	NULL	NULL	NULL	NULL	2	100.00	
@@ -464,7 +464,7 @@ as tvc_0
 group by b
 ) as dr_table;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	<derived2>	ALL	NULL	NULL	NULL	NULL	12	100.00	
+1	PRIMARY	<derived2>	ALL	NULL	NULL	NULL	NULL	9	100.00	
 2	DERIVED	t1	ALL	NULL	NULL	NULL	NULL	6	100.00	Using temporary; Using filesort
 2	DERIVED	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
 3	MATERIALIZED	<derived4>	ALL	NULL	NULL	NULL	NULL	2	100.00	
@@ -526,7 +526,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 Warnings:
 Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` semi join ((values (1,2),(3,4)) `tvc_0`) where 1
 set @@in_predicate_conversion_threshold= 2;
-# trasformation works for the one IN predicate and doesn't work for the other
+# transformation works for the one IN predicate and doesn't work for the other
 set @@in_predicate_conversion_threshold= 5;
 select * from t2
 where (a,b) in ((1,2),(8,9)) and
@@ -539,11 +539,10 @@ where (a,b) in ((1,2),(8,9)) and
 (a,c) in ((1,3),(8,0),(5,1));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	6	100.00	Using where
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func,func	1	100.00	
-2	MATERIALIZED	<derived3>	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	PRIMARY	<derived3>	ref	key0	key0	8	test.t2.a,test.t2.c	2	100.00	FirstMatch(t2)
 3	DERIVED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t2` semi join ((values (1,3),(8,0),(5,1)) `tvc_0`) where (`test`.`t2`.`a`,`test`.`t2`.`b`) in (<cache>((1,2)),<cache>((8,9)))
+Note	1003	/* select#1 */ select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t2` semi join ((values (1,3),(8,0),(5,1)) `tvc_0`) where `tvc_0`.`_col_1` = `test`.`t2`.`a` and `tvc_0`.`_col_2` = `test`.`t2`.`c` and (`test`.`t2`.`a`,`test`.`t2`.`b`) in (<cache>((1,2)),<cache>((8,9)))
 set @@in_predicate_conversion_threshold= 2;
 #
 # mdev-14281: conversion of NOT IN predicate into subquery predicate
@@ -568,18 +567,18 @@ explain extended select * from t1
 where (a,b) not in ((1,2),(8,9), (5,1));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	6	100.00	Using where
-2	MATERIALIZED	<derived3>	ALL	NULL	NULL	NULL	NULL	3	100.00	
+2	DEPENDENT SUBQUERY	<derived3>	index_subquery	key0	key0	8	func,func	2	100.00	Using where; Full scan on NULL key
 3	DERIVED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where !<expr_cache><`test`.`t1`.`a`,`test`.`t1`.`b`>(<in_optimizer>((`test`.`t1`.`a`,`test`.`t1`.`b`),(`test`.`t1`.`a`,`test`.`t1`.`b`) in ( <materialize> (/* select#2 */ select `tvc_0`.`_col_1`,`tvc_0`.`_col_2` from (values (1,2),(8,9),(5,1)) `tvc_0` ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where `test`.`t1`.`a` = `<subquery2>`.`_col_1` and `test`.`t1`.`b` = `<subquery2>`.`_col_2`))))
+Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where !<expr_cache><`test`.`t1`.`a`,`test`.`t1`.`b`>(<in_optimizer>((`test`.`t1`.`a`,`test`.`t1`.`b`),<exists>(<index_lookup>(<cache>(`test`.`t1`.`a`) in (temporary) on key0 where trigcond(<cache>(`test`.`t1`.`a`) = `tvc_0`.`_col_1`) and trigcond(<cache>(`test`.`t1`.`b`) = `tvc_0`.`_col_2`)))))
 explain extended select * from t1
 where (a,b) not in (select * from (values (1,2),(8,9), (5,1)) as tvc_0);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	6	100.00	Using where
-2	MATERIALIZED	<derived3>	ALL	NULL	NULL	NULL	NULL	3	100.00	
+2	DEPENDENT SUBQUERY	<derived3>	index_subquery	key0	key0	8	func,func	2	100.00	Using where; Full scan on NULL key
 3	DERIVED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where !<expr_cache><`test`.`t1`.`a`,`test`.`t1`.`b`>(<in_optimizer>((`test`.`t1`.`a`,`test`.`t1`.`b`),(`test`.`t1`.`a`,`test`.`t1`.`b`) in ( <materialize> (/* select#2 */ select `tvc_0`.`1`,`tvc_0`.`2` from (values (1,2),(8,9),(5,1)) `tvc_0` ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where `test`.`t1`.`a` = `<subquery2>`.`1` and `test`.`t1`.`b` = `<subquery2>`.`2`))))
+Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where !<expr_cache><`test`.`t1`.`a`,`test`.`t1`.`b`>(<in_optimizer>((`test`.`t1`.`a`,`test`.`t1`.`b`),<exists>(<index_lookup>(<cache>(`test`.`t1`.`a`) in (temporary) on key0 where trigcond(<cache>(`test`.`t1`.`a`) = `tvc_0`.`1`) and trigcond(<cache>(`test`.`t1`.`b`) = `tvc_0`.`2`)))))
 select * from t1
 where b < 7 and (a,b) not in ((1,2),(8,9), (5,1));
 a	b
@@ -590,10 +589,10 @@ explain extended select * from t1
 where b < 7 and (a,b) not in ((1,2),(8,9), (5,1));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	6	100.00	Using where
-2	MATERIALIZED	<derived3>	ALL	NULL	NULL	NULL	NULL	3	100.00	
+2	DEPENDENT SUBQUERY	<derived3>	index_subquery	key0	key0	8	func,func	2	100.00	Using where; Full scan on NULL key
 3	DERIVED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where `test`.`t1`.`b` < 7 and !<expr_cache><`test`.`t1`.`a`,`test`.`t1`.`b`>(<in_optimizer>((`test`.`t1`.`a`,`test`.`t1`.`b`),(`test`.`t1`.`a`,`test`.`t1`.`b`) in ( <materialize> (/* select#2 */ select `tvc_0`.`_col_1`,`tvc_0`.`_col_2` from (values (1,2),(8,9),(5,1)) `tvc_0` ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where `test`.`t1`.`a` = `<subquery2>`.`_col_1` and `test`.`t1`.`b` = `<subquery2>`.`_col_2`))))
+Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where `test`.`t1`.`b` < 7 and !<expr_cache><`test`.`t1`.`a`,`test`.`t1`.`b`>(<in_optimizer>((`test`.`t1`.`a`,`test`.`t1`.`b`),<exists>(<index_lookup>(<cache>(`test`.`t1`.`a`) in (temporary) on key0 where trigcond(<cache>(`test`.`t1`.`a`) = `tvc_0`.`_col_1`) and trigcond(<cache>(`test`.`t1`.`b`) = `tvc_0`.`_col_2`)))))
 select * from t2
 where (a,c) not in ((1,2),(8,9), (5,1));
 a	b	c
@@ -606,10 +605,10 @@ explain extended select * from t2
 where (a,c) not in ((1,2),(8,9), (5,1));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	6	100.00	Using where
-2	MATERIALIZED	<derived3>	ALL	NULL	NULL	NULL	NULL	3	100.00	
+2	DEPENDENT SUBQUERY	<derived3>	index_subquery	key0	key0	8	func,func	2	100.00	Using where; Full scan on NULL key
 3	DERIVED	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t2` where !<expr_cache><`test`.`t2`.`a`,`test`.`t2`.`c`>(<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`c`),(`test`.`t2`.`a`,`test`.`t2`.`c`) in ( <materialize> (/* select#2 */ select `tvc_0`.`_col_1`,`tvc_0`.`_col_2` from (values (1,2),(8,9),(5,1)) `tvc_0` ), <primary_index_lookup>(`test`.`t2`.`a` in <temporary table> on distinct_key where `test`.`t2`.`a` = `<subquery2>`.`_col_1` and `test`.`t2`.`c` = `<subquery2>`.`_col_2`))))
+Note	1003	/* select#1 */ select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b`,`test`.`t2`.`c` AS `c` from `test`.`t2` where !<expr_cache><`test`.`t2`.`a`,`test`.`t2`.`c`>(<in_optimizer>((`test`.`t2`.`a`,`test`.`t2`.`c`),<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in (temporary) on key0 where trigcond(<cache>(`test`.`t2`.`a`) = `tvc_0`.`_col_1`) and trigcond(<cache>(`test`.`t2`.`c`) = `tvc_0`.`_col_2`)))))
 drop table t1, t2, t3;
 set @@in_predicate_conversion_threshold= default;
 #
diff --git a/mysql-test/main/opt_tvc.test b/mysql-test/main/opt_tvc.test
index f8469f22aa1..ebb34758f87 100644
--- a/mysql-test/main/opt_tvc.test
+++ b/mysql-test/main/opt_tvc.test
@@ -276,7 +276,7 @@ eval $query;
 eval explain extended $query;
 set @@in_predicate_conversion_threshold= 2;
 
---echo # trasformation works for the one IN predicate and doesn't work for the other
+--echo # transformation works for the one IN predicate and doesn't work for the other
 
 set @@in_predicate_conversion_threshold= 5;
 
diff --git a/mysql-test/main/order_by.result b/mysql-test/main/order_by.result
index c1016393828..af379cf4aae 100644
--- a/mysql-test/main/order_by.result
+++ b/mysql-test/main/order_by.result
@@ -1192,7 +1192,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	index	k2	k3	5	NULL	111	Using where
 EXPLAIN SELECT id,c3 FROM t2 WHERE c2=11 ORDER BY c3 LIMIT 4000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	index	k2	k3	5	NULL	22318	Using where
+1	SIMPLE	t2	ref	k2	k2	5	const	7341	Using where; Using filesort
 EXPLAIN SELECT id,c3 FROM t2 WHERE c2 BETWEEN 10 AND 12 ORDER BY c3 LIMIT 20;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	index	k2	k3	5	NULL	73	Using where
@@ -1221,6 +1221,10 @@ id	c3
 176	14
 186	14
 196	14
+ALTER TABLE t2 DROP INDEX k3, ADD INDEX k3 (c3,c2);
+EXPLAIN SELECT c3 FROM t2 WHERE c2=11 ORDER BY c3 LIMIT 4000;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t2	index	k2	k3	10	NULL	22318	Using where; Using index
 DROP TABLE t1,t2;
 CREATE TABLE t1 (
 a INT,
@@ -1551,11 +1555,17 @@ INSERT INTO t1 VALUES (1, 10), (2, NULL);
 EXPLAIN
 SELECT 1 AS col FROM t1 WHERE a=2 AND (c=10 OR c IS NULL) ORDER BY c;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref_or_null	a_c,a	a_c	10	const,const	2	Using where; Using index; Using filesort
+1	SIMPLE	t1	range	a_c,a	a_c	10	NULL	2	Using where; Using index
 # Must return 1 row
 SELECT 1 AS col FROM t1 WHERE a=2 AND (c=10 OR c IS NULL) ORDER BY c;
 col
 1
+# With more rows "range" changes to "ref_or_null"
+INSERT INTO t1 select seq,seq from seq_1_to_10;
+EXPLAIN
+SELECT 1 AS col FROM t1 WHERE a=2 AND (c=10 OR c IS NULL) ORDER BY c;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ref_or_null	a_c,a	a_c	10	const,const	2	Using where; Using index; Using filesort
 # Must use ref-or-null on the a_c index
 EXPLAIN
 SELECT 1 AS col FROM t1 WHERE a=2 AND (c=10 OR c IS NULL) ORDER BY c DESC;
@@ -3412,10 +3422,9 @@ ANALYZE
             "r_loops": 1,
             "r_total_time_ms": "REPLACED",
             "r_limit": 5,
-            "r_used_priority_queue": false,
-            "r_output_rows": 100,
-            "r_buffer_size": "REPLACED",
-            "r_sort_mode": "sort_key,packed_addon_fields",
+            "r_used_priority_queue": true,
+            "r_output_rows": 6,
+            "r_sort_mode": "sort_key,rowid",
             "table": {
               "table_name": "t1",
               "access_type": "ALL",
@@ -3453,7 +3462,7 @@ CREATE TABLE t2 SELECT * FROM t1;
 EXPLAIN SELECT (SELECT 1 FROM t1 WHERE t1.a=t2.b ORDER BY t1.b LIMIT 1) AS c FROM t2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	
-2	DEPENDENT SUBQUERY	t1	index	PRIMARY	b	5	NULL	1	Using where
+2	DEPENDENT SUBQUERY	t1	eq_ref	PRIMARY	PRIMARY	4	test.t2.b	1	Using where
 SELECT (SELECT 1 FROM t1 WHERE t1.a=t2.b ORDER BY t1.b LIMIT 1) AS c FROM t2;
 c
 1
@@ -3501,11 +3510,10 @@ WHERE books.library_id = 8663 AND
 books.scheduled_for_removal=0 )
 ORDER BY wings.id;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	2	100.00	Using filesort
-1	PRIMARY	wings	eq_ref	PRIMARY	PRIMARY	4	test.books.wings_id	1	100.00	
-2	MATERIALIZED	books	ref	library_idx	library_idx	4	const	2	100.00	Using where
+1	PRIMARY	wings	ALL	PRIMARY	NULL	NULL	NULL	2	100.00	Using temporary; Using filesort
+1	PRIMARY	books	ALL	library_idx	NULL	NULL	NULL	2	100.00	Using where; FirstMatch(wings); Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select `test`.`wings`.`id` AS `wing_id`,`test`.`wings`.`department_id` AS `department_id` from `test`.`wings` semi join (`test`.`books`) where `test`.`books`.`library_id` = 8663 and `test`.`books`.`scheduled_for_removal` = 0 and `test`.`wings`.`id` = `test`.`books`.`wings_id` order by `test`.`wings`.`id`
+Note	1003	select `test`.`wings`.`id` AS `wing_id`,`test`.`wings`.`department_id` AS `department_id` from `test`.`wings` semi join (`test`.`books`) where `test`.`books`.`library_id` = 8663 and `test`.`books`.`scheduled_for_removal` = 0 and `test`.`books`.`wings_id` = `test`.`wings`.`id` order by `test`.`wings`.`id`
 set optimizer_switch= @save_optimizer_switch;
 DROP TABLE books, wings;
 #
diff --git a/mysql-test/main/order_by.test b/mysql-test/main/order_by.test
index 1cd9efa2710..baa173ea753 100644
--- a/mysql-test/main/order_by.test
+++ b/mysql-test/main/order_by.test
@@ -9,6 +9,7 @@
 --source include/no_view_protocol.inc
 
 call mtr.add_suppression("Sort aborted.*");
+--source include/have_sequence.inc
 call mtr.add_suppression("Out of sort memory; increase server sort buffer size");
 --source include/have_sequence.inc
 
@@ -803,6 +804,10 @@ EXPLAIN SELECT id,c3 FROM t2 WHERE c2 BETWEEN 20 AND 30 ORDER BY c3 LIMIT 4000;
 
 SELECT id,c3 FROM t2 WHERE c2=11 ORDER BY c3 LIMIT 20;
 
+# Show that order by optimization takes into account index only scans
+ALTER TABLE t2 DROP INDEX k3, ADD INDEX k3 (c3,c2);
+EXPLAIN SELECT c3 FROM t2 WHERE c2=11 ORDER BY c3 LIMIT 4000;
+
 DROP TABLE t1,t2;
 
 # 
@@ -912,6 +917,11 @@ SELECT 1 AS col FROM t1 WHERE a=2 AND (c=10 OR c IS NULL) ORDER BY c;
 --echo # Must return 1 row
 SELECT 1 AS col FROM t1 WHERE a=2 AND (c=10 OR c IS NULL) ORDER BY c;
 
+--echo # With more rows "range" changes to "ref_or_null"
+INSERT INTO t1 select seq,seq from seq_1_to_10;
+EXPLAIN
+SELECT 1 AS col FROM t1 WHERE a=2 AND (c=10 OR c IS NULL) ORDER BY c;
+
 # part 2 of the problem : DESC test cases
 --echo # Must use ref-or-null on the a_c index
 --replace_column 1 x 2 x 3 x 6 x 7 x 8 x 9 x 10 x
diff --git a/mysql-test/main/order_by_innodb.result b/mysql-test/main/order_by_innodb.result
index 741084c8a6c..7462b8e6688 100644
--- a/mysql-test/main/order_by_innodb.result
+++ b/mysql-test/main/order_by_innodb.result
@@ -53,17 +53,29 @@ KEY a_c (a,c),
 KEY a_b (a,b)
 ) ENGINE=InnoDB;
 insert into t1 select A.a , B.a, C.a from t0 A, t0 B, t0 C;
+select count(*) from t1;
+count(*)
+1000
+select count(*) from t1 where a=1;
+count(*)
+200
+select count(*) from t1 where a=1 and c=2;
+count(*)
+20
 # should use ref access
 explain select a,b,c from t1 where a=1 and c=2 order by b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ref	a_c,a_b	a_c	10	const,const	20	Using where; Using filesort
-# both should use range access
-explain select a,b,c from t1 where a=1 and c=2 order by b limit 1000;
+# all should use range access
+explain select a,b,c from t1 where a=1 and c=2 order by b limit 10;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ref	a_c,a_b	a_c	10	const,const	20	Using where; Using filesort
+explain select a,b,c from t1 where a=1 and c=2 order by b limit 300;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	a_c,a_b	a_b	5	NULL	200	Using where
-explain select a,b,c from t1 where a=1 and c=2 order by b limit 2000;
+1	SIMPLE	t1	ref	a_c,a_b	a_c	10	const,const	20	Using where; Using filesort
+explain select a,b,c from t1 where a=1 and c=2 order by b limit 1000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	a_c,a_b	a_b	5	NULL	200	Using where
+1	SIMPLE	t1	ref	a_c,a_b	a_c	10	const,const	20	Using where; Using filesort
 drop table t1,t0;
 # Start of 10.2 tests
 #
@@ -245,8 +257,8 @@ dd.d1, dd.d2, dd.id limit 1
 );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	index	NULL	PRIMARY	4	NULL	#	Using index
-1	PRIMARY	t2	eq_ref	PRIMARY,id2	PRIMARY	4	func	#	Using where
-2	DEPENDENT SUBQUERY	dd	range	id2,for_latest_sort	for_latest_sort	6	NULL	#	Using where
+1	PRIMARY	t2	eq_ref	PRIMARY,id2	id2	8	test.t1.id,func	#	Using where; Using index
+2	DEPENDENT SUBQUERY	dd	ref	id2,for_latest_sort	id2	4	test.t1.id	#	Using where; Using filesort
 drop table t1,t2,t3;
 # End of 10.2 tests
 #
diff --git a/mysql-test/main/order_by_innodb.test b/mysql-test/main/order_by_innodb.test
index bdaef56672f..acce96c7603 100644
--- a/mysql-test/main/order_by_innodb.test
+++ b/mysql-test/main/order_by_innodb.test
@@ -66,13 +66,17 @@ KEY a_c (a,c),
 KEY a_b (a,b)
 ) ENGINE=InnoDB;
 insert into t1 select A.a , B.a, C.a from t0 A, t0 B, t0 C;
+select count(*) from t1;
+select count(*) from t1 where a=1;
+select count(*) from t1 where a=1 and c=2;
 
 --echo # should use ref access
 explain select a,b,c from t1 where a=1 and c=2 order by b;
 
---echo # both should use range access
+--echo # all should use range access
+explain select a,b,c from t1 where a=1 and c=2 order by b limit 10;
+explain select a,b,c from t1 where a=1 and c=2 order by b limit 300;
 explain select a,b,c from t1 where a=1 and c=2 order by b limit 1000;
-explain select a,b,c from t1 where a=1 and c=2 order by b limit 2000;
 drop table t1,t0;
 
 --echo # Start of 10.2 tests
diff --git a/mysql-test/main/order_by_sortkey.result b/mysql-test/main/order_by_sortkey.result
index c1d9609eb47..853823f5f61 100644
--- a/mysql-test/main/order_by_sortkey.result
+++ b/mysql-test/main/order_by_sortkey.result
@@ -40,6 +40,9 @@ INSERT INTO tmp SELECT f1,f2 FROM t1;
 INSERT INTO t1(f1,f2) SELECT * FROM tmp;
 INSERT INTO tmp SELECT f1,f2 FROM t1;
 INSERT INTO t1(f1,f2) SELECT * FROM tmp;
+select count(*) from t1;
+count(*)
+87700
 set sort_buffer_size= 32768;
 FLUSH STATUS;
 SHOW SESSION STATUS LIKE 'Sort%';
@@ -49,6 +52,9 @@ Sort_priority_queue_sorts	0
 Sort_range	0
 Sort_rows	0
 Sort_scan	0
+explain SELECT * FROM t1 ORDER BY f2 LIMIT 100;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	87700	Using filesort
 SELECT * FROM t1 ORDER BY f2 LIMIT 100;
 f0	f1	f2
 1	0	0
@@ -158,4 +164,9 @@ Sort_priority_queue_sorts	1
 Sort_range	0
 Sort_rows	100
 Sort_scan	1
+SHOW STATUS LIKE 'Handler_read_rnd%';
+Variable_name	Value
+Handler_read_rnd	100
+Handler_read_rnd_deleted	0
+Handler_read_rnd_next	87701
 DROP TABLE t1, tmp;
diff --git a/mysql-test/main/order_by_sortkey.test b/mysql-test/main/order_by_sortkey.test
index 43de028496e..d3f8ba396d8 100644
--- a/mysql-test/main/order_by_sortkey.test
+++ b/mysql-test/main/order_by_sortkey.test
@@ -50,6 +50,7 @@ INSERT INTO tmp SELECT f1,f2 FROM t1;
 INSERT INTO t1(f1,f2) SELECT * FROM tmp; 
 INSERT INTO tmp SELECT f1,f2 FROM t1;
 INSERT INTO t1(f1,f2) SELECT * FROM tmp; 
+select count(*) from t1;
 
 # Test when only sortkeys fits to memory
 set sort_buffer_size= 32768; 
@@ -57,8 +58,12 @@ set sort_buffer_size= 32768;
 FLUSH STATUS;
 SHOW SESSION STATUS LIKE 'Sort%';
 
+explain SELECT * FROM t1 ORDER BY f2 LIMIT 100;
 SELECT * FROM t1 ORDER BY f2 LIMIT 100;
 
+# Check that Sort_priority_queue_sorts is used
 SHOW SESSION STATUS LIKE 'Sort%';
+# Check that we did scan the whole table and did LIMIT lookups
+SHOW STATUS LIKE 'Handler_read_rnd%';
 
 DROP TABLE t1, tmp;
diff --git a/mysql-test/main/partition_pruning.result b/mysql-test/main/partition_pruning.result
index 519bf590b9b..dcc25892276 100644
--- a/mysql-test/main/partition_pruning.result
+++ b/mysql-test/main/partition_pruning.result
@@ -15,13 +15,13 @@ PARTITION max VALUES LESS THAN MAXVALUE);
 INSERT INTO t1 VALUES (-1),(0),(1),(2),(3),(4),(5),(6),(7),(8);
 EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 1;
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
-#	#	#	#	#	#	#	#	#	3	#
+#	#	#	#	range	#	#	#	#	3	#
 EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < 7;
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
-#	#	#	#	#	#	#	#	#	8	#
+#	#	#	#	range	#	#	#	#	8	#
 EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 1;
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
-#	#	#	#	#	#	#	#	#	3	#
+#	#	#	#	range	#	#	#	#	3	#
 DROP TABLE t1;
 #
 # Bug#49742: Partition Pruning not working correctly for RANGE
@@ -2888,12 +2888,12 @@ id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	p0,p1,p2,p3,p4	ALL	b	NULL	NULL	NULL	910	Using where
 explain extended select * from t2 where b in (2,4,6);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t2	ALL	b	NULL	NULL	NULL	910	25.38	Using where
+1	SIMPLE	t2	range	b	b	5	NULL	231	100.00	Using where
 Warnings:
 Note	1003	select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where `test`.`t2`.`b` in (2,4,6)
 explain partitions select * from t2 where b in (2,4,6);
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	p0,p1,p2,p3,p4	ALL	b	NULL	NULL	NULL	910	Using where
+1	SIMPLE	t2	p0,p1,p2,p3,p4	range	b	b	5	NULL	231	Using where
 explain extended select * from t2 where b in (7,8,9);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t2	ALL	b	NULL	NULL	NULL	910	36.81	Using where
@@ -2912,12 +2912,12 @@ id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	p0,p1,p2,p3,p4	ALL	b	NULL	NULL	NULL	910	Using where
 explain extended select * from t2 where b > 5 and b < 8;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t2	ALL	b	NULL	NULL	NULL	910	22.20	Using where
+1	SIMPLE	t2	range	b	b	5	NULL	202	100.00	Using where
 Warnings:
 Note	1003	select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where `test`.`t2`.`b` > 5 and `test`.`t2`.`b` < 8
 explain partitions select * from t2 where b > 5 and b < 8;
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	p0,p1,p2,p3,p4	ALL	b	NULL	NULL	NULL	910	Using where
+1	SIMPLE	t2	p0,p1,p2,p3,p4	range	b	b	5	NULL	202	Using where
 explain extended select * from t2 where b > 5 and b < 7;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	SIMPLE	t2	range	b	b	5	NULL	77	100.00	Using where
@@ -2946,10 +2946,10 @@ flush status;
 update t2 set a = 111 where b in (5,6);
 show status like 'Handler_read_rnd_next';
 Variable_name	Value
-Handler_read_rnd_next	915
+Handler_read_rnd_next	0
 show status like 'Handler_read_key';
 Variable_name	Value
-Handler_read_key	0
+Handler_read_key	10
 flush status;
 update t2 set a = 222 where b = 7;
 show status like 'Handler_read_rnd_next';
@@ -3378,7 +3378,7 @@ id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	p1	const	PRIMARY	PRIMARY	8	const,const	1	
 EXPLAIN PARTITIONS SELECT * FROM t1 WHERE c1 = 1 AND c2 >= 1;
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	p1,p2	range	PRIMARY	PRIMARY	8	NULL	3	Using where
+1	SIMPLE	t1	p1,p2	ref	PRIMARY	PRIMARY	4	const	1	Using where
 EXPLAIN PARTITIONS SELECT * FROM t1 WHERE c1 = 1 AND c2 > 1;
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	p1,p2	range	PRIMARY	PRIMARY	8	NULL	2	Using where
@@ -3387,7 +3387,7 @@ id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	p1	range	PRIMARY	PRIMARY	8	NULL	2	Using where
 EXPLAIN PARTITIONS SELECT * FROM t1 WHERE c1 = 1 AND c2 <= 3;
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	p1,p2	range	PRIMARY	PRIMARY	8	NULL	3	Using where
+1	SIMPLE	t1	p1,p2	ref	PRIMARY	PRIMARY	4	const	1	Using where
 EXPLAIN PARTITIONS SELECT * FROM t1 WHERE c1 = 2 AND c2 <= 3;
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	p1,p2	range	PRIMARY	PRIMARY	8	NULL	2	Using where
@@ -3405,7 +3405,7 @@ id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	p1,p2	range	PRIMARY	PRIMARY	8	NULL	2	Using where
 EXPLAIN PARTITIONS SELECT * FROM t1 WHERE c1 = 2 AND c2 <= 4;
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	p1,p2	range	PRIMARY	PRIMARY	8	NULL	3	Using where
+1	SIMPLE	t1	p1,p2	ref	PRIMARY	PRIMARY	4	const	1	Using where
 EXPLAIN PARTITIONS SELECT * FROM t1 WHERE c1 = 2 AND c2 = 4;
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	p2	const	PRIMARY	PRIMARY	8	const,const	1	
@@ -3465,8 +3465,8 @@ select * from t1
 where company_id = 1000
 and dept_id in (select dept_id from t2 where COMPANY_ID = 1000);
 id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t2	p_1000	ref	PRIMARY	PRIMARY	8	const	3	Using index
-1	PRIMARY	t1	p_1000	ALL	PRIMARY	NULL	NULL	NULL	6	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	t1	p_1000	ALL	PRIMARY	NULL	NULL	NULL	6	Using where
+1	PRIMARY	t2	p_1000	eq_ref	PRIMARY	PRIMARY	16	const,test.t1.dept_id	1	Using index
 drop table t1,t2;
 #
 # MDEV-9505: Valgrind failure in SEL_ARG::store_min,find_used_partitions,...
diff --git a/mysql-test/main/partition_pruning.test b/mysql-test/main/partition_pruning.test
index d59f52be313..78924d27550 100644
--- a/mysql-test/main/partition_pruning.test
+++ b/mysql-test/main/partition_pruning.test
@@ -25,11 +25,11 @@ PARTITION max VALUES LESS THAN MAXVALUE);
 
 INSERT INTO t1 VALUES (-1),(0),(1),(2),(3),(4),(5),(6),(7),(8);
 
---replace_column 1 # 2 # 3 # 4 # 5 # 6 # 7 # 8 # 9 # 11 #
+--replace_column 1 # 2 # 3 # 4 # 6 # 7 # 8 # 9 # 11 #
 EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 1;
---replace_column 1 # 2 # 3 # 4 # 5 # 6 # 7 # 8 # 9 # 11 #
+--replace_column 1 # 2 # 3 # 4 # 6 # 7 # 8 # 9 # 11 #
 EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a < 7;
---replace_column 1 # 2 # 3 # 4 # 5 # 6 # 7 # 8 # 9 # 11 #
+--replace_column 1 # 2 # 3 # 4 # 6 # 7 # 8 # 9 # 11 #
 EXPLAIN PARTITIONS SELECT * FROM t1 WHERE a <= 1;
 DROP TABLE t1;
 
diff --git a/mysql-test/main/partition_range.result b/mysql-test/main/partition_range.result
index cc2e7831405..3c1ff311bf5 100644
--- a/mysql-test/main/partition_range.result
+++ b/mysql-test/main/partition_range.result
@@ -9,11 +9,11 @@ COUNT(*)
 3
 EXPLAIN SELECT a, MAX(b) FROM t1 WHERE a IN (10000, 1000000, 3000) GROUP BY a;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	a	a	5	NULL	4	Using where; Using index
+1	SIMPLE	t1	range	a	a	5	NULL	3	Using where; Using index for group-by
 alter table t1 partition by hash(a) partitions 1;
 EXPLAIN SELECT a, MAX(b) FROM t1 WHERE a IN (10000, 1000000, 3000) GROUP BY a;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	a	a	5	NULL	4	Using where; Using index
+1	SIMPLE	t1	range	a	a	5	NULL	3	Using where; Using index for group-by
 alter table t1 remove partitioning;
 insert into t1 (a,b) select seq,seq from seq_4001_to_4100;
 insert into t1 (a,b) select seq,seq from seq_10001_to_10100;
diff --git a/mysql-test/main/ps_1general.result b/mysql-test/main/ps_1general.result
index ca2447b6b26..b71057248b6 100644
--- a/mysql-test/main/ps_1general.result
+++ b/mysql-test/main/ps_1general.result
@@ -451,7 +451,7 @@ def					Extra	253	255	14	N	1	39	8
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	4	Using filesort
 SET @arg00=1 ;
-prepare stmt1 from ' explain select a from t1 where a > ? order by b ';
+prepare stmt1 from ' explain select a from t1 force index (primary) where a > ? order by b ';
 execute stmt1 using @arg00;
 Catalog	Database	Table	Table_alias	Column	Column_alias	Type	Length	Max length	Is_null	Flags	Decimals	Charsetnr
 def					id	8	3	1	Y	32928	0	63
diff --git a/mysql-test/main/ps_1general.test b/mysql-test/main/ps_1general.test
index 20f2ad019f4..c98fc4a5619 100644
--- a/mysql-test/main/ps_1general.test
+++ b/mysql-test/main/ps_1general.test
@@ -437,8 +437,10 @@ prepare stmt3 from ' unlock tables ' ;
 ## Load/Unload table contents
 
 --let $datafile = $MYSQLTEST_VARDIR/tmp/data.txt
+--disable_warnings
 --error 0,1
 --remove_file $datafile
+--enable_warnings
 
 --replace_result $MYSQLTEST_VARDIR <MYSQLTEST_VARDIR>
 eval prepare stmt1 from ' load data infile ''$datafile''
@@ -497,7 +499,7 @@ prepare stmt1 from ' explain select a from t1 order by b ';
 execute stmt1;
 --disable_metadata
 SET @arg00=1 ;
-prepare stmt1 from ' explain select a from t1 where a > ? order by b ';
+prepare stmt1 from ' explain select a from t1 force index (primary) where a > ? order by b ';
 --enable_metadata
 --replace_result 4096 4_OR_8_K 8192 4_OR_8_K
 execute stmt1 using @arg00;
diff --git a/mysql-test/main/range.result b/mysql-test/main/range.result
index 36e6e2b2aec..a2ecc66c570 100644
--- a/mysql-test/main/range.result
+++ b/mysql-test/main/range.result
@@ -252,7 +252,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ref	x	x	5	const	1	Using index
 explain select count(*) from t1 where x in (1,2,3,4);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	x	x	5	NULL	4	Using where; Using index
+1	SIMPLE	t1	index	x	x	5	NULL	9	Using where; Using index
 drop table t1;
 CREATE TABLE t1 (key1 int(11) NOT NULL default '0', KEY i1 (key1));
 INSERT INTO t1 VALUES (0),(0),(0),(0),(0),(1),(1);
@@ -261,12 +261,12 @@ INSERT INTO t2 VALUES (0),(0),(1),(1),(2),(2);
 explain select * from t1, t2 where (t1.key1 <t2.keya + 1) and t2.keya=3;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ref	j1	j1	4	const	1	Using index
-1	SIMPLE	t1	range	i1	i1	4	NULL	7	Using where; Using index; Using join buffer (flat, BNL join)
+1	SIMPLE	t1	index	i1	i1	4	NULL	7	Using where; Using index; Using join buffer (flat, BNL join)
 explain select * from t1 force index(i1), t2 force index(j1) where 
 (t1.key1 <t2.keya + 1) and t2.keya=3;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ref	j1	j1	4	const	1	Using index
-1	SIMPLE	t1	range	i1	i1	4	NULL	7	Using where; Using index; Using join buffer (flat, BNL join)
+1	SIMPLE	t1	index	i1	i1	4	NULL	7	Using where; Using index; Using join buffer (flat, BNL join)
 DROP TABLE t1,t2;
 CREATE TABLE t1 (
 a int(11) default NULL,
@@ -281,7 +281,7 @@ INSERT INTO t1 VALUES
 (33,5),(33,5),(33,5),(33,5),(34,5),(35,5);
 EXPLAIN SELECT * FROM t1 WHERE a IN(1,2) AND b=5;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range|filter	a,b	a|b	5|5	NULL	2 (41%)	Using index condition; Using where; Using rowid filter
+1	SIMPLE	t1	ref|filter	a,b	b|a	5|5	const	15 (5%)	Using where; Using rowid filter
 SELECT * FROM t1 WHERE a IN(1,2) AND b=5;
 a	b
 DROP TABLE t1;
@@ -676,7 +676,7 @@ create table t1(a char(2), key(a(1)));
 insert into t1 values ('x'), ('xx');
 explain select a from t1 where a > 'x';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	a	a	2	NULL	2	Using where
+1	SIMPLE	t1	ALL	a	NULL	NULL	NULL	2	Using where
 select a from t1 where a > 'x';
 a
 xx
@@ -1138,7 +1138,7 @@ INSERT INTO t1 VALUES
 ('A2','2005-12-01 08:00:00',1000);
 EXPLAIN SELECT * FROM t1 WHERE item='A1' AND started<='2005-12-01 24:00:00';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	PRIMARY	PRIMARY	20	const	3	Using index condition
+1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	4	Using where
 SELECT * FROM t1 WHERE item='A1' AND started<='2005-12-01 24:00:00';
 item	started	price
 Warnings:
@@ -1236,14 +1236,13 @@ insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
 create table t2 (a int, b int, filler char(100));
 insert into t2 select A.a + 10 * (B.a + 10 * C.a), 10, 'filler' from t1 A,
 t1 B, t1 C where A.a < 5;
-insert into t2 select 1000, b, 'filler' from t2;
+insert into t2 select 1000, b, 'filler' from t2 limit 250;
 alter table t2 add index (a,b);
-select 'In following EXPLAIN the access method should be ref, #rows~=500 (and not 2)' Z;
-Z
-In following EXPLAIN the access method should be ref, #rows~=500 (and not 2)
+# In following EXPLAIN the access method should be ref, #rows~=250
+# (and not 2) when we are not using rowid-ordered scans
 explain select * from t2 where a=1000 and b<11;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	ref	a	a	5	const	503	Using index condition
+1	SIMPLE	t2	range	a	a	10	NULL	253	Using index condition
 drop table t1, t2;
 CREATE TABLE t1( a INT, b INT, KEY( a, b ) );
 CREATE TABLE t2( a INT, b INT, KEY( a, b ) );
@@ -2542,7 +2541,7 @@ insert into t2 values
 explain select * from t1,t2
 where a = d and (a,e) in ((3,3),(7,7),(2,2));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	range|filter	idx1,idx2	idx1|idx2	5|5	NULL	3 (60%)	Using index condition; Using where; Using rowid filter
+1	SIMPLE	t2	range	idx1,idx2	idx1	5	NULL	3	Using index condition; Using where
 1	SIMPLE	t1	ref	idx	idx	5	test.t2.d	8	
 explain format=json select * from t1,t2
 where a = d and (a,e) in ((3,3),(7,7),(2,2));
@@ -2559,16 +2558,8 @@ EXPLAIN
           "key": "idx1",
           "key_length": "5",
           "used_key_parts": ["d"],
-          "rowid_filter": {
-            "range": {
-              "key": "idx2",
-              "used_key_parts": ["e"]
-            },
-            "rows": 12,
-            "selectivity_pct": 60
-          },
           "rows": 3,
-          "filtered": 60,
+          "filtered": 100,
           "index_condition": "t2.d is not null",
           "attached_condition": "(t2.d,t2.e) in (<cache>((3,3)),<cache>((7,7)),<cache>((2,2)))"
         }
@@ -2628,8 +2619,8 @@ insert into t2 values
 explain select * from t1,t2
 where a = d and (a,e) in ((3,3),(7,7),(8,8)) and length(f) = 1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	range|filter	idx1,idx2	idx1|idx2	5|5	NULL	8 (14%)	Using index condition; Using where; Using rowid filter
-1	SIMPLE	t1	ref	idx	idx	5	test.t2.d	8	
+1	SIMPLE	t1	range	idx	idx	5	NULL	6	Using index condition
+1	SIMPLE	t2	ref|filter	idx1,idx2	idx1|idx2	5|5	test.t1.a	12 (14%)	Using where; Using rowid filter
 explain format=json select * from t1,t2
 where a = d and (a,e) in ((3,3),(7,7),(8,8)) and length(f) = 1;
 EXPLAIN
@@ -2639,12 +2630,26 @@ EXPLAIN
     "nested_loop": [
       {
         "table": {
-          "table_name": "t2",
+          "table_name": "t1",
           "access_type": "range",
+          "possible_keys": ["idx"],
+          "key": "idx",
+          "key_length": "5",
+          "used_key_parts": ["a"],
+          "rows": 6,
+          "filtered": 100,
+          "index_condition": "t1.a is not null"
+        }
+      },
+      {
+        "table": {
+          "table_name": "t2",
+          "access_type": "ref",
           "possible_keys": ["idx1", "idx2"],
           "key": "idx1",
           "key_length": "5",
           "used_key_parts": ["d"],
+          "ref": ["test.t1.a"],
           "rowid_filter": {
             "range": {
               "key": "idx2",
@@ -2653,23 +2658,9 @@ EXPLAIN
             "rows": 15,
             "selectivity_pct": 14.42307692
           },
-          "rows": 8,
+          "rows": 12,
           "filtered": 14.42307663,
-          "index_condition": "t2.d is not null",
-          "attached_condition": "(t2.d,t2.e) in (<cache>((3,3)),<cache>((7,7)),<cache>((8,8))) and octet_length(t2.f) = 1"
-        }
-      },
-      {
-        "table": {
-          "table_name": "t1",
-          "access_type": "ref",
-          "possible_keys": ["idx"],
-          "key": "idx",
-          "key_length": "5",
-          "used_key_parts": ["a"],
-          "ref": ["test.t2.d"],
-          "rows": 8,
-          "filtered": 100
+          "attached_condition": "(t1.a,t2.e) in (<cache>((3,3)),<cache>((7,7)),<cache>((8,8))) and octet_length(t2.f) = 1"
         }
       }
     ]
@@ -2678,37 +2669,37 @@ EXPLAIN
 select * from t1,t2
 where a = d and (a,e) in ((3,3),(7,7),(8,8)) and length(f) = 1;
 a	b	c	d	e	f
-3	2	uuuw	3	3	i
 3	2	uuua	3	3	i
-3	3	zzzz	3	3	i
-3	3	zyxw	3	3	i
-3	3	zzza	3	3	i
-3	3	zyxa	3	3	i
-3	2	uuuw	3	3	i
 3	2	uuua	3	3	i
-3	3	zzzz	3	3	i
+3	2	uuuw	3	3	i
+3	2	uuuw	3	3	i
+3	3	zyxa	3	3	i
+3	3	zyxa	3	3	i
+3	3	zyxw	3	3	i
 3	3	zyxw	3	3	i
 3	3	zzza	3	3	i
-3	3	zyxa	3	3	i
-7	7	xxxyy	7	7	h
+3	3	zzza	3	3	i
+3	3	zzzz	3	3	i
+3	3	zzzz	3	3	i
 7	7	xxxya	7	7	h
-7	8	xxxxx	7	7	h
+7	7	xxxyy	7	7	h
 7	8	xxxxa	7	7	h
+7	8	xxxxx	7	7	h
 prepare stmt from "select * from t1,t2
 where a = d and (a,e) in ((3,3),(7,7),(8,8)) and length(f) = 1";
 execute stmt;
 a	b	c	d	e	f
 3	2	uuuw	3	3	i
-3	2	uuua	3	3	i
-3	3	zzzz	3	3	i
-3	3	zyxw	3	3	i
-3	3	zzza	3	3	i
-3	3	zyxa	3	3	i
 3	2	uuuw	3	3	i
 3	2	uuua	3	3	i
+3	2	uuua	3	3	i
+3	3	zzzz	3	3	i
 3	3	zzzz	3	3	i
 3	3	zyxw	3	3	i
+3	3	zyxw	3	3	i
 3	3	zzza	3	3	i
+3	3	zzza	3	3	i
+3	3	zyxa	3	3	i
 3	3	zyxa	3	3	i
 7	7	xxxyy	7	7	h
 7	7	xxxya	7	7	h
@@ -2717,17 +2708,17 @@ a	b	c	d	e	f
 execute stmt;
 a	b	c	d	e	f
 3	2	uuuw	3	3	i
-3	2	uuua	3	3	i
-3	3	zzzz	3	3	i
-3	3	zyxw	3	3	i
-3	3	zzza	3	3	i
-3	3	zyxa	3	3	i
 3	2	uuuw	3	3	i
 3	2	uuua	3	3	i
+3	2	uuua	3	3	i
+3	3	zzzz	3	3	i
 3	3	zzzz	3	3	i
 3	3	zyxw	3	3	i
+3	3	zyxw	3	3	i
+3	3	zzza	3	3	i
 3	3	zzza	3	3	i
 3	3	zyxa	3	3	i
+3	3	zyxa	3	3	i
 7	7	xxxyy	7	7	h
 7	7	xxxya	7	7	h
 7	8	xxxxx	7	7	h
@@ -2739,8 +2730,8 @@ insert into t1 select * from t1;
 explain select * from t1,t2 
 where a = d and (a,e) in ((4,4),(7,7),(8,8)) and length(f) = 1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	range|filter	idx1,idx2	idx1|idx2	5|5	NULL	7 (7%)	Using index condition; Using where; Using rowid filter
-1	SIMPLE	t1	ref	idx	idx	5	test.t2.d	11	
+1	SIMPLE	t1	range	idx	idx	5	NULL	15	Using index condition
+1	SIMPLE	t2	ref|filter	idx1,idx2	idx1|idx2	5|5	test.t1.a	12 (7%)	Using where; Using rowid filter
 explain format=json select * from t1,t2 
 where a = d and (a,e) in ((4,4),(7,7),(8,8)) and length(f) = 1;
 EXPLAIN
@@ -2750,12 +2741,26 @@ EXPLAIN
     "nested_loop": [
       {
         "table": {
-          "table_name": "t2",
+          "table_name": "t1",
           "access_type": "range",
+          "possible_keys": ["idx"],
+          "key": "idx",
+          "key_length": "5",
+          "used_key_parts": ["a"],
+          "rows": 15,
+          "filtered": 100,
+          "index_condition": "t1.a is not null"
+        }
+      },
+      {
+        "table": {
+          "table_name": "t2",
+          "access_type": "ref",
           "possible_keys": ["idx1", "idx2"],
           "key": "idx1",
           "key_length": "5",
           "used_key_parts": ["d"],
+          "ref": ["test.t1.a"],
           "rowid_filter": {
             "range": {
               "key": "idx2",
@@ -2764,23 +2769,9 @@ EXPLAIN
             "rows": 7,
             "selectivity_pct": 6.730769231
           },
-          "rows": 7,
-          "filtered": 14.28571415,
-          "index_condition": "t2.d is not null",
-          "attached_condition": "(t2.d,t2.e) in (<cache>((4,4)),<cache>((7,7)),<cache>((8,8))) and octet_length(t2.f) = 1"
-        }
-      },
-      {
-        "table": {
-          "table_name": "t1",
-          "access_type": "ref",
-          "possible_keys": ["idx"],
-          "key": "idx",
-          "key_length": "5",
-          "used_key_parts": ["a"],
-          "ref": ["test.t2.d"],
-          "rows": 11,
-          "filtered": 100
+          "rows": 12,
+          "filtered": 6.730769157,
+          "attached_condition": "(t1.a,t2.e) in (<cache>((4,4)),<cache>((7,7)),<cache>((8,8))) and octet_length(t2.f) = 1"
         }
       }
     ]
@@ -2789,14 +2780,14 @@ EXPLAIN
 select * from t1,t2 
 where a = d and (a,e) in ((4,4),(7,7),(8,8)) and length(f) = 1;
 a	b	c	d	e	f
-7	7	xxxyy	7	7	h
 7	7	xxxya	7	7	h
-7	7	xxxyy	7	7	h
 7	7	xxxya	7	7	h
-7	8	xxxxx	7	7	h
+7	7	xxxyy	7	7	h
+7	7	xxxyy	7	7	h
 7	8	xxxxa	7	7	h
-7	8	xxxxx	7	7	h
 7	8	xxxxa	7	7	h
+7	8	xxxxx	7	7	h
+7	8	xxxxx	7	7	h
 alter table t2 drop index idx1, drop index idx2, add index idx3(d,e);
 # join order: (t2,t1) with ref access of t1
 # range access to t2 by 2-component keys for index idx3
@@ -2900,22 +2891,22 @@ EXPLAIN
 select * from t1,t2
 where a = d and (a,e) in ((4,d+1),(7,d+1),(8,d+1)) and length(f) = 1;
 a	b	c	d	e	f
-4	3	zyx	4	5	a
 4	3	zya	4	5	a
-4	3	zyx	4	5	a
 4	3	zya	4	5	a
-4	5	ww	4	5	a
+4	3	zyx	4	5	a
+4	3	zyx	4	5	a
 4	5	wa	4	5	a
-4	5	ww	4	5	a
 4	5	wa	4	5	a
-7	7	xxxyy	7	8	b
+4	5	ww	4	5	a
+4	5	ww	4	5	a
 7	7	xxxya	7	8	b
-7	7	xxxyy	7	8	b
 7	7	xxxya	7	8	b
-7	8	xxxxx	7	8	b
+7	7	xxxyy	7	8	b
+7	7	xxxyy	7	8	b
 7	8	xxxxa	7	8	b
-7	8	xxxxx	7	8	b
 7	8	xxxxa	7	8	b
+7	8	xxxxx	7	8	b
+7	8	xxxxx	7	8	b
 # join order: (t1,t2) with ref access of t2
 # no range access
 explain select * from t1,t2
@@ -2960,14 +2951,14 @@ EXPLAIN
 select * from t1,t2
 where a = d and (a,e) in ((e,d+1),(7,7),(8,8)) and length(f) = 1;
 a	b	c	d	e	f
-7	8	xxxxx	7	7	h
-7	7	xxxyy	7	7	h
-7	8	xxxxa	7	7	h
 7	7	xxxya	7	7	h
-7	8	xxxxx	7	7	h
+7	7	xxxya	7	7	h
+7	7	xxxyy	7	7	h
 7	7	xxxyy	7	7	h
 7	8	xxxxa	7	7	h
-7	7	xxxya	7	7	h
+7	8	xxxxa	7	7	h
+7	8	xxxxx	7	7	h
+7	8	xxxxx	7	7	h
 # join order: (t1,t2) with ref access of t2
 # range access to t1 by 1-component keys for index idx
 explain select * from t1,t2
diff --git a/mysql-test/main/range.test b/mysql-test/main/range.test
index c42670c1ed1..a8c56fcc35c 100644
--- a/mysql-test/main/range.test
+++ b/mysql-test/main/range.test
@@ -1025,7 +1025,7 @@ create table t2 (a int, b int, filler char(100));
 insert into t2 select A.a + 10 * (B.a + 10 * C.a), 10, 'filler' from t1 A,
 t1 B, t1 C where A.a < 5;
 
-insert into t2 select 1000, b, 'filler' from t2;
+insert into t2 select 1000, b, 'filler' from t2 limit 250;
 alter table t2 add index (a,b);
 # t2 values 
 #  ( 1  , 10, 'filler')
@@ -1033,13 +1033,14 @@ alter table t2 add index (a,b);
 #  ( 3  , 10, 'filler')
 #  (... , 10, 'filler')
 #   ...
-#  (1000, 10, 'filler') - 500 times
+#  (1000, 10, 'filler') - 250 times
 
-# 500 rows, 1 row
+# 250 rows, 1 row
 
-select 'In following EXPLAIN the access method should be ref, #rows~=500 (and not 2)' Z;
-explain select * from t2 where a=1000 and b<11;
+--echo # In following EXPLAIN the access method should be ref, #rows~=250
+--echo # (and not 2) when we are not using rowid-ordered scans
 
+explain select * from t2 where a=1000 and b<11;
 drop table t1, t2;
 
 #
@@ -1980,6 +1981,7 @@ select * from t1,t2
   where a = d and (a,e) in ((3,3),(7,7),(8,8)) and length(f) = 1;
 eval explain $q5;
 eval explain format=json $q5;
+--sorted_result
 eval $q5;
 eval prepare stmt from "$q5";
 execute stmt;
@@ -1995,6 +1997,7 @@ select * from t1,t2
   where a = d and (a,e) in ((4,4),(7,7),(8,8)) and length(f) = 1;
 eval explain $q6;
 eval explain format=json $q6;
+--sorted_result
 eval $q6;
 
 alter table t2 drop index idx1, drop index idx2, add index idx3(d,e);
@@ -2015,6 +2018,7 @@ select * from t1,t2
   where a = d and (a,e) in ((4,d+1),(7,d+1),(8,d+1)) and length(f) = 1;
 eval explain $q8;
 eval explain format=json $q8;
+--sorted_result
 eval $q8;
 
 --echo # join order: (t1,t2) with ref access of t2
@@ -2024,6 +2028,7 @@ select * from t1,t2
   where a = d and (a,e) in ((e,d+1),(7,7),(8,8)) and length(f) = 1;
 eval explain $q9;
 eval explain format=json $q9;
+--sorted_result
 eval $q9;
 
 --echo # join order: (t1,t2) with ref access of t2
diff --git a/mysql-test/main/range_innodb.result b/mysql-test/main/range_innodb.result
index eddfbfd0d62..011ae411b21 100644
--- a/mysql-test/main/range_innodb.result
+++ b/mysql-test/main/range_innodb.result
@@ -53,9 +53,9 @@ set optimizer_switch='extended_keys=on';
 explain
 select pk, a, b from t1,t2,t3 where b >= d and pk < c and b = '0';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	2	
-1	SIMPLE	t1	ref	PRIMARY,idx1,idx2	idx1	5	const	3	Using index condition
-1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	#	
+1	SIMPLE	t1	ALL	PRIMARY,idx1,idx2	NULL	NULL	NULL	#	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	#	Using where; Using join buffer (incremental, BNL join)
 select pk, a, b from t1,t2,t3 where b >= d and pk < c and b = '0';
 pk	a	b
 1	6	0
@@ -83,6 +83,7 @@ drop table t1,t2;
 # MDEV-14440: Server crash in in handler::ha_external_lock or Assertion `inited==RND'
 # failed in handler::ha_rnd_end upon SELECT from partitioned table
 #
+call mtr.add_suppression("Got error .* when reading table");
 set @optimizer_switch_save= @@optimizer_switch;
 set optimizer_switch='index_merge_sort_intersection=off';
 create table t0(a int);
diff --git a/mysql-test/main/range_innodb.test b/mysql-test/main/range_innodb.test
index 276b9cea08f..35511279910 100644
--- a/mysql-test/main/range_innodb.test
+++ b/mysql-test/main/range_innodb.test
@@ -58,6 +58,8 @@ insert into t3 values (3),(-1),(4);
 set @save_optimizer_switch=@@optimizer_switch;
 set optimizer_switch='extended_keys=on';
 
+# InnoDB sometimes returns 4 other times 5 records for t1
+--replace_column 9 #
 explain
 select pk, a, b from t1,t2,t3 where b >= d and pk < c and b = '0';
 select pk, a, b from t1,t2,t3 where b >= d and pk < c and b = '0';
@@ -89,6 +91,8 @@ drop table t1,t2;
 --echo # failed in handler::ha_rnd_end upon SELECT from partitioned table
 --echo #
 
+call mtr.add_suppression("Got error .* when reading table");
+
 set @optimizer_switch_save= @@optimizer_switch;
 set optimizer_switch='index_merge_sort_intersection=off';
 create table t0(a int);
diff --git a/mysql-test/main/range_mrr_icp.result b/mysql-test/main/range_mrr_icp.result
index d2d06ab7b42..a3c8bb7b8c2 100644
--- a/mysql-test/main/range_mrr_icp.result
+++ b/mysql-test/main/range_mrr_icp.result
@@ -255,7 +255,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ref	x	x	5	const	1	Using index
 explain select count(*) from t1 where x in (1,2,3,4);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	x	x	5	NULL	4	Using where; Using index
+1	SIMPLE	t1	index	x	x	5	NULL	9	Using where; Using index
 drop table t1;
 CREATE TABLE t1 (key1 int(11) NOT NULL default '0', KEY i1 (key1));
 INSERT INTO t1 VALUES (0),(0),(0),(0),(0),(1),(1);
@@ -264,12 +264,12 @@ INSERT INTO t2 VALUES (0),(0),(1),(1),(2),(2);
 explain select * from t1, t2 where (t1.key1 <t2.keya + 1) and t2.keya=3;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ref	j1	j1	4	const	1	Using index
-1	SIMPLE	t1	range	i1	i1	4	NULL	7	Using where; Using index; Using join buffer (flat, BNL join)
+1	SIMPLE	t1	index	i1	i1	4	NULL	7	Using where; Using index; Using join buffer (flat, BNL join)
 explain select * from t1 force index(i1), t2 force index(j1) where 
 (t1.key1 <t2.keya + 1) and t2.keya=3;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	ref	j1	j1	4	const	1	Using index
-1	SIMPLE	t1	range	i1	i1	4	NULL	7	Using where; Using index; Using join buffer (flat, BNL join)
+1	SIMPLE	t1	index	i1	i1	4	NULL	7	Using where; Using index; Using join buffer (flat, BNL join)
 DROP TABLE t1,t2;
 CREATE TABLE t1 (
 a int(11) default NULL,
@@ -679,7 +679,7 @@ create table t1(a char(2), key(a(1)));
 insert into t1 values ('x'), ('xx');
 explain select a from t1 where a > 'x';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	a	a	2	NULL	2	Using where
+1	SIMPLE	t1	ALL	a	NULL	NULL	NULL	2	Using where
 select a from t1 where a > 'x';
 a
 xx
@@ -1141,7 +1141,7 @@ INSERT INTO t1 VALUES
 ('A2','2005-12-01 08:00:00',1000);
 EXPLAIN SELECT * FROM t1 WHERE item='A1' AND started<='2005-12-01 24:00:00';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	PRIMARY	PRIMARY	20	const	3	Using index condition
+1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	4	Using where
 SELECT * FROM t1 WHERE item='A1' AND started<='2005-12-01 24:00:00';
 item	started	price
 Warnings:
@@ -1239,14 +1239,13 @@ insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
 create table t2 (a int, b int, filler char(100));
 insert into t2 select A.a + 10 * (B.a + 10 * C.a), 10, 'filler' from t1 A,
 t1 B, t1 C where A.a < 5;
-insert into t2 select 1000, b, 'filler' from t2;
+insert into t2 select 1000, b, 'filler' from t2 limit 250;
 alter table t2 add index (a,b);
-select 'In following EXPLAIN the access method should be ref, #rows~=500 (and not 2)' Z;
-Z
-In following EXPLAIN the access method should be ref, #rows~=500 (and not 2)
+# In following EXPLAIN the access method should be ref, #rows~=250
+# (and not 2) when we are not using rowid-ordered scans
 explain select * from t2 where a=1000 and b<11;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	ref	a	a	5	const	503	Using index condition
+1	SIMPLE	t2	range	a	a	10	NULL	253	Using index condition; Rowid-ordered scan
 drop table t1, t2;
 CREATE TABLE t1( a INT, b INT, KEY( a, b ) );
 CREATE TABLE t2( a INT, b INT, KEY( a, b ) );
@@ -2566,7 +2565,7 @@ EXPLAIN
           "key_length": "5",
           "used_key_parts": ["d"],
           "rows": 3,
-          "filtered": 60,
+          "filtered": 100,
           "index_condition": "t2.d is not null",
           "attached_condition": "(t2.d,t2.e) in (<cache>((3,3)),<cache>((7,7)),<cache>((2,2)))",
           "mrr_type": "Rowid-ordered scan"
@@ -2645,7 +2644,7 @@ EXPLAIN
           "key_length": "5",
           "used_key_parts": ["d"],
           "rows": 8,
-          "filtered": 14.42307663,
+          "filtered": 100,
           "index_condition": "t2.d is not null",
           "attached_condition": "(t2.d,t2.e) in (<cache>((3,3)),<cache>((7,7)),<cache>((8,8))) and octet_length(t2.f) = 1",
           "mrr_type": "Rowid-ordered scan"
@@ -2670,22 +2669,22 @@ EXPLAIN
 select * from t1,t2
 where a = d and (a,e) in ((3,3),(7,7),(8,8)) and length(f) = 1;
 a	b	c	d	e	f
-3	2	uuuw	3	3	i
 3	2	uuua	3	3	i
-3	3	zzzz	3	3	i
+3	2	uuua	3	3	i
+3	2	uuuw	3	3	i
+3	2	uuuw	3	3	i
+3	3	zyxa	3	3	i
+3	3	zyxa	3	3	i
+3	3	zyxw	3	3	i
 3	3	zyxw	3	3	i
 3	3	zzza	3	3	i
-3	3	zyxa	3	3	i
-7	7	xxxyy	7	7	h
+3	3	zzza	3	3	i
+3	3	zzzz	3	3	i
+3	3	zzzz	3	3	i
 7	7	xxxya	7	7	h
-7	8	xxxxx	7	7	h
+7	7	xxxyy	7	7	h
 7	8	xxxxa	7	7	h
-3	2	uuuw	3	3	i
-3	2	uuua	3	3	i
-3	3	zzzz	3	3	i
-3	3	zyxw	3	3	i
-3	3	zzza	3	3	i
-3	3	zyxa	3	3	i
+7	8	xxxxx	7	7	h
 prepare stmt from "select * from t1,t2
 where a = d and (a,e) in ((3,3),(7,7),(8,8)) and length(f) = 1";
 execute stmt;
@@ -2749,7 +2748,7 @@ EXPLAIN
           "key_length": "5",
           "used_key_parts": ["d"],
           "rows": 7,
-          "filtered": 14.28571415,
+          "filtered": 100,
           "index_condition": "t2.d is not null",
           "attached_condition": "(t2.d,t2.e) in (<cache>((4,4)),<cache>((7,7)),<cache>((8,8))) and octet_length(t2.f) = 1",
           "mrr_type": "Rowid-ordered scan"
@@ -2774,14 +2773,14 @@ EXPLAIN
 select * from t1,t2 
 where a = d and (a,e) in ((4,4),(7,7),(8,8)) and length(f) = 1;
 a	b	c	d	e	f
-7	7	xxxyy	7	7	h
 7	7	xxxya	7	7	h
-7	7	xxxyy	7	7	h
 7	7	xxxya	7	7	h
-7	8	xxxxx	7	7	h
+7	7	xxxyy	7	7	h
+7	7	xxxyy	7	7	h
 7	8	xxxxa	7	7	h
-7	8	xxxxx	7	7	h
 7	8	xxxxa	7	7	h
+7	8	xxxxx	7	7	h
+7	8	xxxxx	7	7	h
 alter table t2 drop index idx1, drop index idx2, add index idx3(d,e);
 # join order: (t2,t1) with ref access of t1
 # range access to t2 by 2-component keys for index idx3
@@ -2887,22 +2886,22 @@ EXPLAIN
 select * from t1,t2
 where a = d and (a,e) in ((4,d+1),(7,d+1),(8,d+1)) and length(f) = 1;
 a	b	c	d	e	f
-4	5	ww	4	5	a
-7	8	xxxxx	7	8	b
+4	3	zya	4	5	a
+4	3	zya	4	5	a
+4	3	zyx	4	5	a
 4	3	zyx	4	5	a
-7	7	xxxyy	7	8	b
 4	5	wa	4	5	a
-7	8	xxxxa	7	8	b
-4	3	zya	4	5	a
-7	7	xxxya	7	8	b
+4	5	wa	4	5	a
 4	5	ww	4	5	a
-7	8	xxxxx	7	8	b
-4	3	zyx	4	5	a
+4	5	ww	4	5	a
+7	7	xxxya	7	8	b
+7	7	xxxya	7	8	b
+7	7	xxxyy	7	8	b
 7	7	xxxyy	7	8	b
-4	5	wa	4	5	a
 7	8	xxxxa	7	8	b
-4	3	zya	4	5	a
-7	7	xxxya	7	8	b
+7	8	xxxxa	7	8	b
+7	8	xxxxx	7	8	b
+7	8	xxxxx	7	8	b
 # join order: (t1,t2) with ref access of t2
 # no range access
 explain select * from t1,t2
@@ -2947,14 +2946,14 @@ EXPLAIN
 select * from t1,t2
 where a = d and (a,e) in ((e,d+1),(7,7),(8,8)) and length(f) = 1;
 a	b	c	d	e	f
-7	8	xxxxx	7	7	h
-7	7	xxxyy	7	7	h
-7	8	xxxxa	7	7	h
 7	7	xxxya	7	7	h
-7	8	xxxxx	7	7	h
+7	7	xxxya	7	7	h
+7	7	xxxyy	7	7	h
 7	7	xxxyy	7	7	h
 7	8	xxxxa	7	7	h
-7	7	xxxya	7	7	h
+7	8	xxxxa	7	7	h
+7	8	xxxxx	7	7	h
+7	8	xxxxx	7	7	h
 # join order: (t1,t2) with ref access of t2
 # range access to t1 by 1-component keys for index idx
 explain select * from t1,t2
diff --git a/mysql-test/main/range_notembedded.result b/mysql-test/main/range_notembedded.result
index e1bcc7463d5..b3d2dfbb43b 100644
--- a/mysql-test/main/range_notembedded.result
+++ b/mysql-test/main/range_notembedded.result
@@ -13,18 +13,13 @@ set @tmp_21958=@@optimizer_trace;
 set optimizer_trace=1;
 explain select * from t2 where key1 in (1,2,3) and pk not in (1,2,3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	range	PRIMARY,key1	key1	5	NULL	3	Using index condition
+1	SIMPLE	t2	ALL	PRIMARY,key1	NULL	NULL	NULL	5	Using where
 # This should show only ranges in form "(1) <= (key1) <= (1)"
 #  ranges over "pk" should not be constructed.
 select json_detailed(JSON_EXTRACT(trace, '$**.ranges'))
 from information_schema.optimizer_trace;
 json_detailed(JSON_EXTRACT(trace, '$**.ranges'))
 [
-    [
-        "(1) <= (key1) <= (1)",
-        "(2) <= (key1) <= (2)",
-        "(3) <= (key1) <= (3)"
-    ],
     [
         "(1) <= (key1) <= (1)",
         "(2) <= (key1) <= (2)",
@@ -225,9 +220,10 @@ user_id int(10) unsigned NOT NULL DEFAULT 0,
 PRIMARY KEY (notification_type_id,item_id,item_parent_id,user_id)
 );
 insert into t1 values (1,1,1,1), (2,2,2,2), (3,3,3,3);
+insert into t1 select seq,seq,seq,seq from seq_10_to_30;
 # Run crashing query
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	PRIMARY	PRIMARY	2	NULL	3	Using where
+1	SIMPLE	t1	range	PRIMARY	PRIMARY	2	NULL	5	Using where
 drop table t1;
 #
 # MDEV-25069: Assertion `root->weight >= ...' failed in SEL_ARG::tree_delete #2
diff --git a/mysql-test/main/range_notembedded.test b/mysql-test/main/range_notembedded.test
index 00d16a5d564..5778cdbd82c 100644
--- a/mysql-test/main/range_notembedded.test
+++ b/mysql-test/main/range_notembedded.test
@@ -122,6 +122,7 @@ CREATE TABLE t1 (
   PRIMARY KEY (notification_type_id,item_id,item_parent_id,user_id)
 );
 insert into t1 values (1,1,1,1), (2,2,2,2), (3,3,3,3);
+insert into t1 select seq,seq,seq,seq from seq_10_to_30;
 
 let $consts=`select group_concat(concat("'",seq,"'")) from seq_1_to_4642`;
 
diff --git a/mysql-test/main/range_vs_index_merge.result b/mysql-test/main/range_vs_index_merge.result
index 1729b95a105..3babbc989b3 100644
--- a/mysql-test/main/range_vs_index_merge.result
+++ b/mysql-test/main/range_vs_index_merge.result
@@ -333,7 +333,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 EXPLAIN
 SELECT * FROM City WHERE (ID < 600) OR (ID BETWEEN 900 AND 1500);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	ALL	PRIMARY	NULL	NULL	NULL	4079	Using where
+1	SIMPLE	City	range	PRIMARY	PRIMARY	4	NULL	1200	Using index condition
 EXPLAIN
 SELECT * FROM City WHERE Country > 'A' AND Country < 'ARG';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
@@ -1077,7 +1077,7 @@ EXPLAIN SELECT Name, Country, Population FROM City WHERE
 (Name='Samara' AND Country='RUS') OR  
 (Name='Seattle' AND Country='USA');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	index_merge	Country,CountryPopulation,CountryName,CityName	CountryName,CityName	38,35	NULL	28	Using sort_union(CountryName,CityName); Using where
+1	SIMPLE	City	range	Country,CountryPopulation,CountryName,CityName	CountryName	38	NULL	28	Using index condition
 SELECT Name, Country, Population FROM City WHERE
 (Name='Manila' AND Country='PHL') OR
 (Name='Addis Abeba' AND Country='ETH') OR          
diff --git a/mysql-test/main/range_vs_index_merge.test b/mysql-test/main/range_vs_index_merge.test
index 38b643c0b13..6517beab0be 100644
--- a/mysql-test/main/range_vs_index_merge.test
+++ b/mysql-test/main/range_vs_index_merge.test
@@ -659,7 +659,7 @@ let $cond =
 (Name='Lugansk' AND Country='UKR') OR          
 (Name='Caracas' AND Country='VEN') OR  
 (Name='Samara' AND Country='RUS') OR  
-(Name='Seattle' AND Country='USA'); 
+(Name='Seattle' AND Country='USA');
 
 eval
 EXPLAIN SELECT Name, Country, Population FROM City WHERE
diff --git a/mysql-test/main/range_vs_index_merge_innodb.result b/mysql-test/main/range_vs_index_merge_innodb.result
index 79a670aedb2..de345f66161 100644
--- a/mysql-test/main/range_vs_index_merge_innodb.result
+++ b/mysql-test/main/range_vs_index_merge_innodb.result
@@ -365,7 +365,7 @@ WHERE ((ID < 800) AND (Name LIKE 'Ha%' OR (Country > 'A' AND Country < 'ARG')))
 OR ((ID BETWEEN 900 AND 1500) AND 
 (Name LIKE 'Pa%' OR (Population > 103000 AND Population < 105000)));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	index_merge	PRIMARY,Population,Country,Name	Name,Country,PRIMARY	39,3,4	NULL	683	Using sort_union(Name,Country,PRIMARY); Using where
+1	SIMPLE	City	index_merge	PRIMARY,Population,Country,Name	Name,Country,Population	39,3,4	NULL	212	Using sort_union(Name,Country,Population); Using where
 EXPLAIN
 SELECT * FROM City
 WHERE ((ID < 200) AND (Name LIKE 'Ha%' OR (Country > 'A' AND Country < 'ARG')))
@@ -620,7 +620,7 @@ WHERE ((Population > 101000 AND Population < 102000) AND
 ((ID BETWEEN 3400 AND 3800) AND 
 (Country < 'AGO' OR Name LIKE 'Pa%'));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	City	index_merge	PRIMARY,Population,Country,Name	Population,PRIMARY	4,4	NULL	440	Using sort_union(Population,PRIMARY); Using where
+1	SIMPLE	City	index_merge	PRIMARY,Population,Country,Name	Country,Name,Population	3,39,4	NULL	115	Using sort_union(Country,Name,Population); Using where
 EXPLAIN
 SELECT * FROM City
 WHERE ((Population > 101000 AND Population < 110000) AND
@@ -1804,7 +1804,7 @@ SELECT * FROM t1
 WHERE t1.a>300 AND t1.c!=0 AND t1.b>=350 AND t1.b<=400 AND
 (t1.c=0 OR t1.a=500);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	PRIMARY,idx	idx	5	NULL	2	Using where; Using index
+1	SIMPLE	t1	range	PRIMARY,idx	PRIMARY	4	NULL	1	Using where
 SELECT * FROM t1
 WHERE t1.a>300 AND t1.c!=0 AND t1.b>=350 AND t1.b<=400 AND
 (t1.c=0 OR t1.a=500);
diff --git a/mysql-test/main/rowid_filter.result b/mysql-test/main/rowid_filter.result
index 3f27ef6540f..9a2251c91a6 100644
--- a/mysql-test/main/rowid_filter.result
+++ b/mysql-test/main/rowid_filter.result
@@ -242,7 +242,7 @@ EXPLAIN
           "key_length": "4",
           "used_key_parts": ["l_shipDATE"],
           "rows": 509,
-          "filtered": 11.69025803,
+          "filtered": 100,
           "index_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30'",
           "attached_condition": "lineitem.l_quantity > 45"
         }
@@ -254,7 +254,7 @@ set statement optimizer_switch='rowid_filter=off' for ANALYZE SELECT l_orderkey,
 WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
 l_quantity > 45;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	lineitem	range	i_l_shipdate,i_l_quantity	i_l_shipdate	4	NULL	509	510.00	11.69	11.76	Using index condition; Using where
+1	SIMPLE	lineitem	range	i_l_shipdate,i_l_quantity	i_l_shipdate	4	NULL	509	510.00	100.00	11.76	Using index condition; Using where
 set statement optimizer_switch='rowid_filter=off' for ANALYZE FORMAT=JSON SELECT l_orderkey, l_linenumber, l_shipdate, l_quantity FROM lineitem
 WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
 l_quantity > 45;
@@ -281,7 +281,7 @@ ANALYZE
           "r_rows": 510,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 11.69025803,
+          "filtered": 100,
           "r_filtered": 11.76470588,
           "index_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30'",
           "attached_condition": "lineitem.l_quantity > 45"
@@ -359,8 +359,8 @@ FROM orders JOIN lineitem ON o_orderkey=l_orderkey
 WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-01-31' AND
 o_totalprice between 200000 and 230000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	lineitem	range	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_shipdate	4	NULL	98	Using index condition
-1	SIMPLE	orders	eq_ref|filter	PRIMARY,i_o_totalprice	PRIMARY|i_o_totalprice	4|9	dbt3_s001.lineitem.l_orderkey	1 (5%)	Using where; Using rowid filter
+1	SIMPLE	orders	range	PRIMARY,i_o_totalprice	i_o_totalprice	9	NULL	69	Using index condition
+1	SIMPLE	lineitem	ref|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey|i_l_shipdate	4|4	dbt3_s001.orders.o_orderkey	4 (2%)	Using where; Using rowid filter
 set statement optimizer_switch='rowid_filter=on' for EXPLAIN FORMAT=JSON SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
 FROM orders JOIN lineitem ON o_orderkey=l_orderkey
 WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-01-31' AND
@@ -372,42 +372,42 @@ EXPLAIN
     "nested_loop": [
       {
         "table": {
-          "table_name": "lineitem",
+          "table_name": "orders",
           "access_type": "range",
+          "possible_keys": ["PRIMARY", "i_o_totalprice"],
+          "key": "i_o_totalprice",
+          "key_length": "9",
+          "used_key_parts": ["o_totalprice"],
+          "rows": 69,
+          "filtered": 100,
+          "index_condition": "orders.o_totalprice between 200000 and 230000"
+        }
+      },
+      {
+        "table": {
+          "table_name": "lineitem",
+          "access_type": "ref",
           "possible_keys": [
             "PRIMARY",
             "i_l_shipdate",
             "i_l_orderkey",
             "i_l_orderkey_quantity"
           ],
-          "key": "i_l_shipdate",
-          "key_length": "4",
-          "used_key_parts": ["l_shipDATE"],
-          "rows": 98,
-          "filtered": 100,
-          "index_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-01-31'"
-        }
-      },
-      {
-        "table": {
-          "table_name": "orders",
-          "access_type": "eq_ref",
-          "possible_keys": ["PRIMARY", "i_o_totalprice"],
-          "key": "PRIMARY",
+          "key": "i_l_orderkey",
           "key_length": "4",
-          "used_key_parts": ["o_orderkey"],
-          "ref": ["dbt3_s001.lineitem.l_orderkey"],
+          "used_key_parts": ["l_orderkey"],
+          "ref": ["dbt3_s001.orders.o_orderkey"],
           "rowid_filter": {
             "range": {
-              "key": "i_o_totalprice",
-              "used_key_parts": ["o_totalprice"]
+              "key": "i_l_shipdate",
+              "used_key_parts": ["l_shipDATE"]
             },
-            "rows": 69,
-            "selectivity_pct": 4.6
+            "rows": 98,
+            "selectivity_pct": 1.631973356
           },
-          "rows": 1,
-          "filtered": 4.599999905,
-          "attached_condition": "orders.o_totalprice between 200000 and 230000"
+          "rows": 4,
+          "filtered": 1.631973386,
+          "attached_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-01-31'"
         }
       }
     ]
@@ -418,8 +418,8 @@ FROM orders JOIN lineitem ON o_orderkey=l_orderkey
 WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-01-31' AND
 o_totalprice between 200000 and 230000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	lineitem	range	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_shipdate	4	NULL	98	98.00	100.00	100.00	Using index condition
-1	SIMPLE	orders	eq_ref|filter	PRIMARY,i_o_totalprice	PRIMARY|i_o_totalprice	4|9	dbt3_s001.lineitem.l_orderkey	1 (5%)	0.11 (10%)	4.60	100.00	Using where; Using rowid filter
+1	SIMPLE	orders	range	PRIMARY,i_o_totalprice	i_o_totalprice	9	NULL	69	71.00	100.00	100.00	Using index condition
+1	SIMPLE	lineitem	ref|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey|i_l_shipdate	4|4	dbt3_s001.orders.o_orderkey	4 (2%)	0.15 (2%)	1.63	100.00	Using where; Using rowid filter
 set statement optimizer_switch='rowid_filter=on' for ANALYZE FORMAT=JSON SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
 FROM orders JOIN lineitem ON o_orderkey=l_orderkey
 WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-01-31' AND
@@ -436,57 +436,57 @@ ANALYZE
     "nested_loop": [
       {
         "table": {
-          "table_name": "lineitem",
+          "table_name": "orders",
           "access_type": "range",
-          "possible_keys": [
-            "PRIMARY",
-            "i_l_shipdate",
-            "i_l_orderkey",
-            "i_l_orderkey_quantity"
-          ],
-          "key": "i_l_shipdate",
-          "key_length": "4",
-          "used_key_parts": ["l_shipDATE"],
+          "possible_keys": ["PRIMARY", "i_o_totalprice"],
+          "key": "i_o_totalprice",
+          "key_length": "9",
+          "used_key_parts": ["o_totalprice"],
           "r_loops": 1,
-          "rows": 98,
-          "r_rows": 98,
+          "rows": 69,
+          "r_rows": 71,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
           "filtered": 100,
           "r_filtered": 100,
-          "index_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-01-31'"
+          "index_condition": "orders.o_totalprice between 200000 and 230000"
         }
       },
       {
         "table": {
-          "table_name": "orders",
-          "access_type": "eq_ref",
-          "possible_keys": ["PRIMARY", "i_o_totalprice"],
-          "key": "PRIMARY",
+          "table_name": "lineitem",
+          "access_type": "ref",
+          "possible_keys": [
+            "PRIMARY",
+            "i_l_shipdate",
+            "i_l_orderkey",
+            "i_l_orderkey_quantity"
+          ],
+          "key": "i_l_orderkey",
           "key_length": "4",
-          "used_key_parts": ["o_orderkey"],
-          "ref": ["dbt3_s001.lineitem.l_orderkey"],
+          "used_key_parts": ["l_orderkey"],
+          "ref": ["dbt3_s001.orders.o_orderkey"],
           "rowid_filter": {
             "range": {
-              "key": "i_o_totalprice",
-              "used_key_parts": ["o_totalprice"]
+              "key": "i_l_shipdate",
+              "used_key_parts": ["l_shipDATE"]
             },
-            "rows": 69,
-            "selectivity_pct": 4.6,
-            "r_rows": 71,
-            "r_lookups": 96,
-            "r_selectivity_pct": 10.41666667,
+            "rows": 98,
+            "selectivity_pct": 1.631973356,
+            "r_rows": 98,
+            "r_lookups": 476,
+            "r_selectivity_pct": 2.31092437,
             "r_buffer_size": "REPLACED",
             "r_filling_time_ms": "REPLACED"
           },
-          "r_loops": 98,
-          "rows": 1,
-          "r_rows": 0.112244898,
+          "r_loops": 71,
+          "rows": 4,
+          "r_rows": 0.154929577,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 4.599999905,
+          "filtered": 1.631973386,
           "r_filtered": 100,
-          "attached_condition": "orders.o_totalprice between 200000 and 230000"
+          "attached_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-01-31'"
         }
       }
     ]
@@ -647,8 +647,8 @@ WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
 l_quantity > 45 AND
 o_totalprice between 180000 and 230000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	lineitem	range|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity,i_l_quantity	i_l_shipdate|i_l_quantity	4|9	NULL	509 (12%)	Using index condition; Using where; Using rowid filter
-1	SIMPLE	orders	eq_ref|filter	PRIMARY,i_o_totalprice	PRIMARY|i_o_totalprice	4|9	dbt3_s001.lineitem.l_orderkey	1 (9%)	Using where; Using rowid filter
+1	SIMPLE	orders	range	PRIMARY,i_o_totalprice	i_o_totalprice	9	NULL	139	Using index condition
+1	SIMPLE	lineitem	ref|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity,i_l_quantity	i_l_orderkey|i_l_shipdate	4|4	dbt3_s001.orders.o_orderkey	4 (8%)	Using where; Using rowid filter
 set statement optimizer_switch='rowid_filter=on' for EXPLAIN FORMAT=JSON SELECT o_orderkey, l_linenumber, l_shipdate, l_quantity, o_totalprice
 FROM orders JOIN lineitem ON o_orderkey=l_orderkey
 WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
@@ -661,8 +661,21 @@ EXPLAIN
     "nested_loop": [
       {
         "table": {
-          "table_name": "lineitem",
+          "table_name": "orders",
           "access_type": "range",
+          "possible_keys": ["PRIMARY", "i_o_totalprice"],
+          "key": "i_o_totalprice",
+          "key_length": "9",
+          "used_key_parts": ["o_totalprice"],
+          "rows": 139,
+          "filtered": 100,
+          "index_condition": "orders.o_totalprice between 180000 and 230000"
+        }
+      },
+      {
+        "table": {
+          "table_name": "lineitem",
+          "access_type": "ref",
           "possible_keys": [
             "PRIMARY",
             "i_l_shipdate",
@@ -670,43 +683,21 @@ EXPLAIN
             "i_l_orderkey_quantity",
             "i_l_quantity"
           ],
-          "key": "i_l_shipdate",
-          "key_length": "4",
-          "used_key_parts": ["l_shipDATE"],
-          "rowid_filter": {
-            "range": {
-              "key": "i_l_quantity",
-              "used_key_parts": ["l_quantity"]
-            },
-            "rows": 702,
-            "selectivity_pct": 11.69025812
-          },
-          "rows": 509,
-          "filtered": 11.69025803,
-          "index_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30'",
-          "attached_condition": "lineitem.l_quantity > 45"
-        }
-      },
-      {
-        "table": {
-          "table_name": "orders",
-          "access_type": "eq_ref",
-          "possible_keys": ["PRIMARY", "i_o_totalprice"],
-          "key": "PRIMARY",
+          "key": "i_l_orderkey",
           "key_length": "4",
-          "used_key_parts": ["o_orderkey"],
-          "ref": ["dbt3_s001.lineitem.l_orderkey"],
+          "used_key_parts": ["l_orderkey"],
+          "ref": ["dbt3_s001.orders.o_orderkey"],
           "rowid_filter": {
             "range": {
-              "key": "i_o_totalprice",
-              "used_key_parts": ["o_totalprice"]
+              "key": "i_l_shipdate",
+              "used_key_parts": ["l_shipDATE"]
             },
-            "rows": 139,
-            "selectivity_pct": 9.266666667
+            "rows": 509,
+            "selectivity_pct": 8.476269775
           },
-          "rows": 1,
-          "filtered": 9.266666412,
-          "attached_condition": "orders.o_totalprice between 180000 and 230000"
+          "rows": 4,
+          "filtered": 0.990897834,
+          "attached_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30' and lineitem.l_quantity > 45"
         }
       }
     ]
@@ -718,8 +709,8 @@ WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
 l_quantity > 45 AND
 o_totalprice between 180000 and 230000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	lineitem	range|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity,i_l_quantity	i_l_shipdate|i_l_quantity	4|9	NULL	509 (12%)	60.00 (11%)	11.69	100.00	Using index condition; Using where; Using rowid filter
-1	SIMPLE	orders	eq_ref|filter	PRIMARY,i_o_totalprice	PRIMARY|i_o_totalprice	4|9	dbt3_s001.lineitem.l_orderkey	1 (9%)	0.27 (25%)	9.27	100.00	Using where; Using rowid filter
+1	SIMPLE	orders	range	PRIMARY,i_o_totalprice	i_o_totalprice	9	NULL	139	144.00	100.00	100.00	Using index condition
+1	SIMPLE	lineitem	ref|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity,i_l_quantity	i_l_orderkey|i_l_shipdate	4|4	dbt3_s001.orders.o_orderkey	4 (8%)	0.54 (8%)	0.99	20.51	Using where; Using rowid filter
 set statement optimizer_switch='rowid_filter=on' for ANALYZE FORMAT=JSON SELECT o_orderkey, l_linenumber, l_shipdate, l_quantity, o_totalprice
 FROM orders JOIN lineitem ON o_orderkey=l_orderkey
 WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
@@ -737,72 +728,58 @@ ANALYZE
     "nested_loop": [
       {
         "table": {
-          "table_name": "lineitem",
+          "table_name": "orders",
           "access_type": "range",
-          "possible_keys": [
-            "PRIMARY",
-            "i_l_shipdate",
-            "i_l_orderkey",
-            "i_l_orderkey_quantity",
-            "i_l_quantity"
-          ],
-          "key": "i_l_shipdate",
-          "key_length": "4",
-          "used_key_parts": ["l_shipDATE"],
-          "rowid_filter": {
-            "range": {
-              "key": "i_l_quantity",
-              "used_key_parts": ["l_quantity"]
-            },
-            "rows": 702,
-            "selectivity_pct": 11.69025812,
-            "r_rows": 605,
-            "r_lookups": 510,
-            "r_selectivity_pct": 11.76470588,
-            "r_buffer_size": "REPLACED",
-            "r_filling_time_ms": "REPLACED"
-          },
+          "possible_keys": ["PRIMARY", "i_o_totalprice"],
+          "key": "i_o_totalprice",
+          "key_length": "9",
+          "used_key_parts": ["o_totalprice"],
           "r_loops": 1,
-          "rows": 509,
-          "r_rows": 60,
+          "rows": 139,
+          "r_rows": 144,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 11.69025803,
+          "filtered": 100,
           "r_filtered": 100,
-          "index_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30'",
-          "attached_condition": "lineitem.l_quantity > 45"
+          "index_condition": "orders.o_totalprice between 180000 and 230000"
         }
       },
       {
         "table": {
-          "table_name": "orders",
-          "access_type": "eq_ref",
-          "possible_keys": ["PRIMARY", "i_o_totalprice"],
-          "key": "PRIMARY",
+          "table_name": "lineitem",
+          "access_type": "ref",
+          "possible_keys": [
+            "PRIMARY",
+            "i_l_shipdate",
+            "i_l_orderkey",
+            "i_l_orderkey_quantity",
+            "i_l_quantity"
+          ],
+          "key": "i_l_orderkey",
           "key_length": "4",
-          "used_key_parts": ["o_orderkey"],
-          "ref": ["dbt3_s001.lineitem.l_orderkey"],
+          "used_key_parts": ["l_orderkey"],
+          "ref": ["dbt3_s001.orders.o_orderkey"],
           "rowid_filter": {
             "range": {
-              "key": "i_o_totalprice",
-              "used_key_parts": ["o_totalprice"]
+              "key": "i_l_shipdate",
+              "used_key_parts": ["l_shipDATE"]
             },
-            "rows": 139,
-            "selectivity_pct": 9.266666667,
-            "r_rows": 144,
-            "r_lookups": 59,
-            "r_selectivity_pct": 25.42372881,
+            "rows": 509,
+            "selectivity_pct": 8.476269775,
+            "r_rows": 510,
+            "r_lookups": 954,
+            "r_selectivity_pct": 8.176100629,
             "r_buffer_size": "REPLACED",
             "r_filling_time_ms": "REPLACED"
           },
-          "r_loops": 60,
-          "rows": 1,
-          "r_rows": 0.266666667,
+          "r_loops": 144,
+          "rows": 4,
+          "r_rows": 0.541666667,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 9.266666412,
-          "r_filtered": 100,
-          "attached_condition": "orders.o_totalprice between 180000 and 230000"
+          "filtered": 0.990897834,
+          "r_filtered": 20.51282051,
+          "attached_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30' and lineitem.l_quantity > 45"
         }
       }
     ]
@@ -836,8 +813,8 @@ WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
 l_quantity > 45 AND
 o_totalprice between 180000 and 230000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	lineitem	range	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity,i_l_quantity	i_l_shipdate	4	NULL	509	Using index condition; Using where
-1	SIMPLE	orders	eq_ref	PRIMARY,i_o_totalprice	PRIMARY	4	dbt3_s001.lineitem.l_orderkey	1	Using where
+1	SIMPLE	orders	range	PRIMARY,i_o_totalprice	i_o_totalprice	9	NULL	139	Using index condition
+1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity,i_l_quantity	i_l_orderkey	4	dbt3_s001.orders.o_orderkey	4	Using where
 set statement optimizer_switch='rowid_filter=off' for EXPLAIN FORMAT=JSON SELECT o_orderkey, l_linenumber, l_shipdate, l_quantity, o_totalprice
 FROM orders JOIN lineitem ON o_orderkey=l_orderkey
 WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
@@ -850,8 +827,21 @@ EXPLAIN
     "nested_loop": [
       {
         "table": {
-          "table_name": "lineitem",
+          "table_name": "orders",
           "access_type": "range",
+          "possible_keys": ["PRIMARY", "i_o_totalprice"],
+          "key": "i_o_totalprice",
+          "key_length": "9",
+          "used_key_parts": ["o_totalprice"],
+          "rows": 139,
+          "filtered": 100,
+          "index_condition": "orders.o_totalprice between 180000 and 230000"
+        }
+      },
+      {
+        "table": {
+          "table_name": "lineitem",
+          "access_type": "ref",
           "possible_keys": [
             "PRIMARY",
             "i_l_shipdate",
@@ -859,27 +849,13 @@ EXPLAIN
             "i_l_orderkey_quantity",
             "i_l_quantity"
           ],
-          "key": "i_l_shipdate",
-          "key_length": "4",
-          "used_key_parts": ["l_shipDATE"],
-          "rows": 509,
-          "filtered": 11.69025803,
-          "index_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30'",
-          "attached_condition": "lineitem.l_quantity > 45"
-        }
-      },
-      {
-        "table": {
-          "table_name": "orders",
-          "access_type": "eq_ref",
-          "possible_keys": ["PRIMARY", "i_o_totalprice"],
-          "key": "PRIMARY",
+          "key": "i_l_orderkey",
           "key_length": "4",
-          "used_key_parts": ["o_orderkey"],
-          "ref": ["dbt3_s001.lineitem.l_orderkey"],
-          "rows": 1,
-          "filtered": 9.266666412,
-          "attached_condition": "orders.o_totalprice between 180000 and 230000"
+          "used_key_parts": ["l_orderkey"],
+          "ref": ["dbt3_s001.orders.o_orderkey"],
+          "rows": 4,
+          "filtered": 0.990897834,
+          "attached_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30' and lineitem.l_quantity > 45"
         }
       }
     ]
@@ -891,8 +867,8 @@ WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
 l_quantity > 45 AND
 o_totalprice between 180000 and 230000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	lineitem	range	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity,i_l_quantity	i_l_shipdate	4	NULL	509	510.00	11.69	11.76	Using index condition; Using where
-1	SIMPLE	orders	eq_ref	PRIMARY,i_o_totalprice	PRIMARY	4	dbt3_s001.lineitem.l_orderkey	1	1.00	9.27	26.67	Using where
+1	SIMPLE	orders	range	PRIMARY,i_o_totalprice	i_o_totalprice	9	NULL	139	144.00	100.00	100.00	Using index condition
+1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity,i_l_quantity	i_l_orderkey	4	dbt3_s001.orders.o_orderkey	4	6.62	0.99	1.68	Using where
 set statement optimizer_switch='rowid_filter=off' for ANALYZE FORMAT=JSON SELECT o_orderkey, l_linenumber, l_shipdate, l_quantity, o_totalprice
 FROM orders JOIN lineitem ON o_orderkey=l_orderkey
 WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
@@ -910,46 +886,45 @@ ANALYZE
     "nested_loop": [
       {
         "table": {
-          "table_name": "lineitem",
+          "table_name": "orders",
           "access_type": "range",
-          "possible_keys": [
-            "PRIMARY",
-            "i_l_shipdate",
-            "i_l_orderkey",
-            "i_l_orderkey_quantity",
-            "i_l_quantity"
-          ],
-          "key": "i_l_shipdate",
-          "key_length": "4",
-          "used_key_parts": ["l_shipDATE"],
+          "possible_keys": ["PRIMARY", "i_o_totalprice"],
+          "key": "i_o_totalprice",
+          "key_length": "9",
+          "used_key_parts": ["o_totalprice"],
           "r_loops": 1,
-          "rows": 509,
-          "r_rows": 510,
+          "rows": 139,
+          "r_rows": 144,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 11.69025803,
-          "r_filtered": 11.76470588,
-          "index_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30'",
-          "attached_condition": "lineitem.l_quantity > 45"
+          "filtered": 100,
+          "r_filtered": 100,
+          "index_condition": "orders.o_totalprice between 180000 and 230000"
         }
       },
       {
         "table": {
-          "table_name": "orders",
-          "access_type": "eq_ref",
-          "possible_keys": ["PRIMARY", "i_o_totalprice"],
-          "key": "PRIMARY",
+          "table_name": "lineitem",
+          "access_type": "ref",
+          "possible_keys": [
+            "PRIMARY",
+            "i_l_shipdate",
+            "i_l_orderkey",
+            "i_l_orderkey_quantity",
+            "i_l_quantity"
+          ],
+          "key": "i_l_orderkey",
           "key_length": "4",
-          "used_key_parts": ["o_orderkey"],
-          "ref": ["dbt3_s001.lineitem.l_orderkey"],
-          "r_loops": 60,
-          "rows": 1,
-          "r_rows": 1,
+          "used_key_parts": ["l_orderkey"],
+          "ref": ["dbt3_s001.orders.o_orderkey"],
+          "r_loops": 144,
+          "rows": 4,
+          "r_rows": 6.625,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 9.266666412,
-          "r_filtered": 26.66666667,
-          "attached_condition": "orders.o_totalprice between 180000 and 230000"
+          "filtered": 0.990897834,
+          "r_filtered": 1.677148847,
+          "attached_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30' and lineitem.l_quantity > 45"
         }
       }
     ]
@@ -977,13 +952,21 @@ o_orderkey	l_linenumber	l_shipdate	l_quantity	o_totalprice
 5829	5	1997-01-31	49	183734.56
 5895	2	1997-04-27	47	201419.83
 5895	3	1997-03-15	49	201419.83
+set statement optimizer_switch='rowid_filter=on' for EXPLAIN SELECT STRAIGHT_JOIN o_orderkey, l_linenumber, l_shipdate, l_quantity, o_totalprice
+FROM lineitem JOIN orders ON o_orderkey=l_orderkey
+WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
+l_quantity > 45 AND
+o_totalprice between 180000 and 230000;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	lineitem	range|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity,i_l_quantity	i_l_shipdate|i_l_quantity	4|9	NULL	509 (12%)	Using index condition; Using where; Using rowid filter
+1	SIMPLE	orders	eq_ref|filter	PRIMARY,i_o_totalprice	PRIMARY|i_o_totalprice	4|9	dbt3_s001.lineitem.l_orderkey	1 (9%)	Using where; Using rowid filter
 set statement optimizer_switch='rowid_filter=on' for EXPLAIN SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
 FROM orders JOIN lineitem ON o_orderkey=l_orderkey
 WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
 o_totalprice between 200000 and 230000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	orders	range	PRIMARY,i_o_totalprice	i_o_totalprice	9	NULL	69	Using index condition
-1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey	4	dbt3_s001.orders.o_orderkey	4	Using where
+1	SIMPLE	lineitem	ref|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey|i_l_shipdate	4|4	dbt3_s001.orders.o_orderkey	4 (8%)	Using where; Using rowid filter
 set statement optimizer_switch='rowid_filter=on' for EXPLAIN FORMAT=JSON SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
 FROM orders JOIN lineitem ON o_orderkey=l_orderkey
 WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
@@ -1020,6 +1003,14 @@ EXPLAIN
           "key_length": "4",
           "used_key_parts": ["l_orderkey"],
           "ref": ["dbt3_s001.orders.o_orderkey"],
+          "rowid_filter": {
+            "range": {
+              "key": "i_l_shipdate",
+              "used_key_parts": ["l_shipDATE"]
+            },
+            "rows": 509,
+            "selectivity_pct": 8.476269775
+          },
           "rows": 4,
           "filtered": 8.476269722,
           "attached_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30'"
@@ -1034,7 +1025,7 @@ WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
 o_totalprice between 200000 and 230000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
 1	SIMPLE	orders	range	PRIMARY,i_o_totalprice	i_o_totalprice	9	NULL	69	71.00	100.00	100.00	Using index condition
-1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey	4	dbt3_s001.orders.o_orderkey	4	6.70	8.48	7.77	Using where
+1	SIMPLE	lineitem	ref|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey|i_l_shipdate	4|4	dbt3_s001.orders.o_orderkey	4 (8%)	0.52 (7%)	8.48	100.00	Using where; Using rowid filter
 set statement optimizer_switch='rowid_filter=on' for ANALYZE FORMAT=JSON SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
 FROM orders JOIN lineitem ON o_orderkey=l_orderkey
 WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
@@ -1081,13 +1072,26 @@ ANALYZE
           "key_length": "4",
           "used_key_parts": ["l_orderkey"],
           "ref": ["dbt3_s001.orders.o_orderkey"],
+          "rowid_filter": {
+            "range": {
+              "key": "i_l_shipdate",
+              "used_key_parts": ["l_shipDATE"]
+            },
+            "rows": 509,
+            "selectivity_pct": 8.476269775,
+            "r_rows": 510,
+            "r_lookups": 476,
+            "r_selectivity_pct": 7.773109244,
+            "r_buffer_size": "REPLACED",
+            "r_filling_time_ms": "REPLACED"
+          },
           "r_loops": 71,
           "rows": 4,
-          "r_rows": 6.704225352,
+          "r_rows": 0.521126761,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
           "filtered": 8.476269722,
-          "r_filtered": 7.773109244,
+          "r_filtered": 100,
           "attached_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30'"
         }
       }
@@ -1337,7 +1341,7 @@ EXPLAIN
           "key_length": "4",
           "used_key_parts": ["l_receiptDATE"],
           "rows": 18,
-          "filtered": 5.555555344,
+          "filtered": 100,
           "index_condition": "lineitem.l_receiptDATE between '1996-10-05' and '1996-10-10'",
           "attached_condition": "lineitem.l_shipDATE between '1996-10-01' and '1996-10-10'"
         }
@@ -1366,7 +1370,7 @@ l_shipdate BETWEEN '1996-10-01' AND '1996-10-10' AND
 l_receiptdate BETWEEN '1996-10-05' AND '1996-10-10' AND
 o_totalprice BETWEEN 200000 AND 250000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	lineitem	range	PRIMARY,i_l_shipdate,i_l_receiptdate,i_l_orderkey,i_l_orderkey_quantity	i_l_receiptdate	4	NULL	18	18.00	5.56	38.89	Using index condition; Using where
+1	SIMPLE	lineitem	range	PRIMARY,i_l_shipdate,i_l_receiptdate,i_l_orderkey,i_l_orderkey_quantity	i_l_receiptdate	4	NULL	18	18.00	100.00	38.89	Using index condition; Using where
 1	SIMPLE	orders	eq_ref	PRIMARY,i_o_totalprice	PRIMARY	4	dbt3_s001.lineitem.l_orderkey	1	1.00	7.47	14.29	Using where
 set statement optimizer_switch='rowid_filter=on' for ANALYZE FORMAT=JSON SELECT l_shipdate, l_receiptdate, o_totalprice
 FROM orders, lineitem
@@ -1403,7 +1407,7 @@ ANALYZE
           "r_rows": 18,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 5.555555344,
+          "filtered": 100,
           "r_filtered": 38.88888889,
           "index_condition": "lineitem.l_receiptDATE between '1996-10-05' and '1996-10-10'",
           "attached_condition": "lineitem.l_shipDATE between '1996-10-01' and '1996-10-10'"
@@ -1474,7 +1478,7 @@ EXPLAIN
           "key_length": "4",
           "used_key_parts": ["l_receiptDATE"],
           "rows": 18,
-          "filtered": 5.555555344,
+          "filtered": 100,
           "index_condition": "lineitem.l_receiptDATE between '1996-10-05' and '1996-10-10'",
           "attached_condition": "lineitem.l_shipDATE between '1996-10-01' and '1996-10-10'"
         }
@@ -1503,7 +1507,7 @@ l_shipdate BETWEEN '1996-10-01' AND '1996-10-10' AND
 l_receiptdate BETWEEN '1996-10-05' AND '1996-10-10' AND
 o_totalprice BETWEEN 200000 AND 250000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	lineitem	range	PRIMARY,i_l_shipdate,i_l_receiptdate,i_l_orderkey,i_l_orderkey_quantity	i_l_receiptdate	4	NULL	18	18.00	5.56	38.89	Using index condition; Using where
+1	SIMPLE	lineitem	range	PRIMARY,i_l_shipdate,i_l_receiptdate,i_l_orderkey,i_l_orderkey_quantity	i_l_receiptdate	4	NULL	18	18.00	100.00	38.89	Using index condition; Using where
 1	SIMPLE	orders	eq_ref	PRIMARY,i_o_totalprice	PRIMARY	4	dbt3_s001.lineitem.l_orderkey	1	1.00	7.47	14.29	Using where
 set statement optimizer_switch='rowid_filter=off' for ANALYZE FORMAT=JSON SELECT l_shipdate, l_receiptdate, o_totalprice
 FROM orders, lineitem
@@ -1540,7 +1544,7 @@ ANALYZE
           "r_rows": 18,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 5.555555344,
+          "filtered": 100,
           "r_filtered": 38.88888889,
           "index_condition": "lineitem.l_receiptDATE between '1996-10-05' and '1996-10-10'",
           "attached_condition": "lineitem.l_shipDATE between '1996-10-01' and '1996-10-10'"
@@ -1591,7 +1595,7 @@ o_totalprice BETWEEN 200000 AND 220000 AND
 l_shipdate BETWEEN '1996-10-01' AND '1996-12-01';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	orders	range	PRIMARY,i_o_totalprice,i_o_totaldiscount	i_o_totaldiscount	9	NULL	39	Using index condition; Using where
-1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey	4	dbt3_s001.orders.o_orderkey	4	Using where
+1	SIMPLE	lineitem	ref|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey|i_l_shipdate	4|4	dbt3_s001.orders.o_orderkey	4 (3%)	Using where; Using rowid filter
 set statement optimizer_switch='rowid_filter=on' for EXPLAIN FORMAT=JSON SELECT o_totaldiscount, o_totalprice, l_shipdate
 FROM orders, lineitem
 WHERE o_orderkey=l_orderkey AND
@@ -1612,7 +1616,7 @@ EXPLAIN
           "key_length": "9",
           "used_key_parts": ["o_totaldiscount"],
           "rows": 39,
-          "filtered": 3.200000048,
+          "filtered": 100,
           "index_condition": "orders.o_totaldiscount between 18000 and 20000",
           "attached_condition": "orders.o_totalprice between 200000 and 220000"
         }
@@ -1631,6 +1635,14 @@ EXPLAIN
           "key_length": "4",
           "used_key_parts": ["l_orderkey"],
           "ref": ["dbt3_s001.orders.o_orderkey"],
+          "rowid_filter": {
+            "range": {
+              "key": "i_l_shipdate",
+              "used_key_parts": ["l_shipDATE"]
+            },
+            "rows": 183,
+            "selectivity_pct": 3.04746045
+          },
           "rows": 4,
           "filtered": 3.047460556,
           "attached_condition": "lineitem.l_shipDATE between '1996-10-01' and '1996-12-01'"
@@ -1646,8 +1658,8 @@ o_totaldiscount BETWEEN 18000 AND 20000 AND
 o_totalprice BETWEEN 200000 AND 220000 AND
 l_shipdate BETWEEN '1996-10-01' AND '1996-12-01';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	orders	range	PRIMARY,i_o_totalprice,i_o_totaldiscount	i_o_totaldiscount	9	NULL	39	41.00	3.20	2.44	Using index condition; Using where
-1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey	4	dbt3_s001.orders.o_orderkey	4	6.00	3.05	66.67	Using where
+1	SIMPLE	orders	range	PRIMARY,i_o_totalprice,i_o_totaldiscount	i_o_totaldiscount	9	NULL	39	41.00	100.00	2.44	Using index condition; Using where
+1	SIMPLE	lineitem	ref|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey|i_l_shipdate	4|4	dbt3_s001.orders.o_orderkey	4 (3%)	4.00 (66%)	3.05	100.00	Using where; Using rowid filter
 set statement optimizer_switch='rowid_filter=on' for ANALYZE FORMAT=JSON SELECT o_totaldiscount, o_totalprice, l_shipdate
 FROM orders, lineitem
 WHERE o_orderkey=l_orderkey AND
@@ -1677,7 +1689,7 @@ ANALYZE
           "r_rows": 41,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 3.200000048,
+          "filtered": 100,
           "r_filtered": 2.43902439,
           "index_condition": "orders.o_totaldiscount between 18000 and 20000",
           "attached_condition": "orders.o_totalprice between 200000 and 220000"
@@ -1697,13 +1709,26 @@ ANALYZE
           "key_length": "4",
           "used_key_parts": ["l_orderkey"],
           "ref": ["dbt3_s001.orders.o_orderkey"],
+          "rowid_filter": {
+            "range": {
+              "key": "i_l_shipdate",
+              "used_key_parts": ["l_shipDATE"]
+            },
+            "rows": 183,
+            "selectivity_pct": 3.04746045,
+            "r_rows": 183,
+            "r_lookups": 6,
+            "r_selectivity_pct": 66.66666667,
+            "r_buffer_size": "REPLACED",
+            "r_filling_time_ms": "REPLACED"
+          },
           "r_loops": 1,
           "rows": 4,
-          "r_rows": 6,
+          "r_rows": 4,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
           "filtered": 3.047460556,
-          "r_filtered": 66.66666667,
+          "r_filtered": 100,
           "attached_condition": "lineitem.l_shipDATE between '1996-10-01' and '1996-12-01'"
         }
       }
@@ -1750,7 +1775,7 @@ EXPLAIN
           "key_length": "9",
           "used_key_parts": ["o_totaldiscount"],
           "rows": 39,
-          "filtered": 3.200000048,
+          "filtered": 100,
           "index_condition": "orders.o_totaldiscount between 18000 and 20000",
           "attached_condition": "orders.o_totalprice between 200000 and 220000"
         }
@@ -1784,7 +1809,7 @@ o_totaldiscount BETWEEN 18000 AND 20000 AND
 o_totalprice BETWEEN 200000 AND 220000 AND
 l_shipdate BETWEEN '1996-10-01' AND '1996-12-01';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	orders	range	PRIMARY,i_o_totalprice,i_o_totaldiscount	i_o_totaldiscount	9	NULL	39	41.00	3.20	2.44	Using index condition; Using where
+1	SIMPLE	orders	range	PRIMARY,i_o_totalprice,i_o_totaldiscount	i_o_totaldiscount	9	NULL	39	41.00	100.00	2.44	Using index condition; Using where
 1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey	4	dbt3_s001.orders.o_orderkey	4	6.00	3.05	66.67	Using where
 set statement optimizer_switch='rowid_filter=off' for ANALYZE FORMAT=JSON SELECT o_totaldiscount, o_totalprice, l_shipdate
 FROM orders, lineitem
@@ -1815,7 +1840,7 @@ ANALYZE
           "r_rows": 41,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 3.200000048,
+          "filtered": 100,
           "r_filtered": 2.43902439,
           "index_condition": "orders.o_totaldiscount between 18000 and 20000",
           "attached_condition": "orders.o_totalprice between 200000 and 220000"
@@ -1870,7 +1895,7 @@ o_totalprice BETWEEN 200000 AND 220000 AND
 l_shipdate BETWEEN '1996-10-01' AND '1996-12-01';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	orders	range	PRIMARY,i_o_orderdate,i_o_totalprice,i_o_totaldiscount	i_o_totaldiscount	9	NULL	39	Using index condition; Using where
-1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey	4	dbt3_s001.orders.o_orderkey	4	Using where
+1	SIMPLE	lineitem	ref|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey|i_l_shipdate	4|4	dbt3_s001.orders.o_orderkey	4 (3%)	Using where; Using rowid filter
 set statement optimizer_switch='rowid_filter=on' for EXPLAIN FORMAT=JSON SELECT o_totaldiscount, o_totalprice, l_shipdate
 FROM v1, lineitem
 WHERE o_orderkey=l_orderkey AND
@@ -1915,6 +1940,14 @@ EXPLAIN
           "key_length": "4",
           "used_key_parts": ["l_orderkey"],
           "ref": ["dbt3_s001.orders.o_orderkey"],
+          "rowid_filter": {
+            "range": {
+              "key": "i_l_shipdate",
+              "used_key_parts": ["l_shipDATE"]
+            },
+            "rows": 183,
+            "selectivity_pct": 3.04746045
+          },
           "rows": 4,
           "filtered": "REPLACED",
           "attached_condition": "lineitem.l_shipDATE between '1996-10-01' and '1996-12-01'"
@@ -1931,7 +1964,7 @@ o_totalprice BETWEEN 200000 AND 220000 AND
 l_shipdate BETWEEN '1996-10-01' AND '1996-12-01';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
 1	SIMPLE	orders	range	PRIMARY,i_o_orderdate,i_o_totalprice,i_o_totaldiscount	i_o_totaldiscount	9	NULL	39	41.00	#	2.44	Using index condition; Using where
-1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey	4	dbt3_s001.orders.o_orderkey	4	6.00	#	66.67	Using where
+1	SIMPLE	lineitem	ref|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey|i_l_shipdate	4|4	dbt3_s001.orders.o_orderkey	4 (3%)	4.00 (66%)	#	100.00	Using where; Using rowid filter
 set statement optimizer_switch='rowid_filter=on' for ANALYZE FORMAT=JSON SELECT o_totaldiscount, o_totalprice, l_shipdate
 FROM v1, lineitem
 WHERE o_orderkey=l_orderkey AND
@@ -1986,13 +2019,26 @@ ANALYZE
           "key_length": "4",
           "used_key_parts": ["l_orderkey"],
           "ref": ["dbt3_s001.orders.o_orderkey"],
+          "rowid_filter": {
+            "range": {
+              "key": "i_l_shipdate",
+              "used_key_parts": ["l_shipDATE"]
+            },
+            "rows": 183,
+            "selectivity_pct": 3.04746045,
+            "r_rows": 183,
+            "r_lookups": 6,
+            "r_selectivity_pct": 66.66666667,
+            "r_buffer_size": "REPLACED",
+            "r_filling_time_ms": "REPLACED"
+          },
           "r_loops": 1,
           "rows": 4,
-          "r_rows": 6,
+          "r_rows": 4,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
           "filtered": "REPLACED",
-          "r_filtered": 66.66666667,
+          "r_filtered": 100,
           "attached_condition": "lineitem.l_shipDATE between '1996-10-01' and '1996-12-01'"
         }
       }
@@ -2778,7 +2824,7 @@ ANALYZE
           "r_rows": 44,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 8.630000114,
+          "filtered": 100,
           "r_filtered": 0,
           "index_condition": "t1.nm like '3400%' or t1.nm like '3402%' or t1.nm like '3403%' or t1.nm like '3404%' or t1.nm like '3405%' or t1.nm like '3406%' or t1.nm like '3407%' or t1.nm like '3409%' or t1.nm like '3411%' or t1.nm like '3412%' or t1.nm like '3413%' or t1.nm like '3414%' or t1.nm like '3415%' or t1.nm like '3416%' or t1.nm like '3417%' or t1.nm like '3418%' or t1.nm like '3419%' or t1.nm like '3421%' or t1.nm like '3422%' or t1.nm like '3423%' or t1.nm like '3424%' or t1.nm like '3425%' or t1.nm like '3426%' or t1.nm like '3427%' or t1.nm like '3428%' or t1.nm like '3429%' or t1.nm like '3430%' or t1.nm like '3431%' or t1.nm like '3432%' or t1.nm like '3433%' or t1.nm like '3434%' or t1.nm like '3435%' or t1.nm like '3436%' or t1.nm like '3437%' or t1.nm like '3439%' or t1.nm like '3440%' or t1.nm like '3441%' or t1.nm like '3442%' or t1.nm like '3443%' or t1.nm like '3444%' or t1.nm like '3445%' or t1.nm like '3446%' or t1.nm like '3447%' or t1.nm like '3448%'",
           "attached_condition": "t1.fl2 = 0"
@@ -2831,7 +2877,7 @@ ANALYZE
           "r_rows": 0,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 8.529999733,
+          "filtered": 100,
           "r_filtered": 100,
           "index_condition": "t1.nm like '3400%' or t1.nm like '3402%' or t1.nm like '3403%' or t1.nm like '3404%' or t1.nm like '3405%' or t1.nm like '3406%' or t1.nm like '3407%' or t1.nm like '3409%' or t1.nm like '3411%' or t1.nm like '3412%' or t1.nm like '3413%' or t1.nm like '3414%' or t1.nm like '3415%' or t1.nm like '3416%' or t1.nm like '3417%' or t1.nm like '3418%' or t1.nm like '3419%' or t1.nm like '3421%' or t1.nm like '3422%' or t1.nm like '3423%' or t1.nm like '3424%' or t1.nm like '3425%' or t1.nm like '3426%' or t1.nm like '3427%' or t1.nm like '3428%' or t1.nm like '3429%' or t1.nm like '3430%' or t1.nm like '3431%' or t1.nm like '3432%' or t1.nm like '3433%' or t1.nm like '3434%' or t1.nm like '3435%' or t1.nm like '3436%' or t1.nm like '3437%' or t1.nm like '3439%' or t1.nm like '3440%' or t1.nm like '3441%' or t1.nm like '3442%' or t1.nm like '3443%' or t1.nm like '3444%' or t1.nm like '3445%' or t1.nm like '3446%' or t1.nm like '3447%' or t1.nm like '3448%'",
           "attached_condition": "t1.fl2 = 0"
diff --git a/mysql-test/main/rowid_filter.test b/mysql-test/main/rowid_filter.test
index a2543e197ca..79a158562aa 100644
--- a/mysql-test/main/rowid_filter.test
+++ b/mysql-test/main/rowid_filter.test
@@ -115,6 +115,13 @@ eval $without_filter ANALYZE FORMAT=JSON $q3;
 --sorted_result
 eval $without_filter $q3;
 
+# Check different optimization
+eval $with_filter EXPLAIN SELECT STRAIGHT_JOIN o_orderkey, l_linenumber, l_shipdate, l_quantity, o_totalprice
+  FROM lineitem JOIN orders ON o_orderkey=l_orderkey
+  WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
+         l_quantity > 45 AND
+         o_totalprice between 180000 and 230000;
+
 let $q4=
 SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
   FROM orders JOIN lineitem ON o_orderkey=l_orderkey
diff --git a/mysql-test/main/rowid_filter_innodb.result b/mysql-test/main/rowid_filter_innodb.result
index 7f42e3a4143..b4b5fc8e679 100644
--- a/mysql-test/main/rowid_filter_innodb.result
+++ b/mysql-test/main/rowid_filter_innodb.result
@@ -245,7 +245,7 @@ EXPLAIN
           "key_length": "4",
           "used_key_parts": ["l_shipDATE"],
           "rows": 510,
-          "filtered": 10.07493782,
+          "filtered": 100,
           "index_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30'",
           "attached_condition": "lineitem.l_quantity > 45"
         }
@@ -257,7 +257,7 @@ set statement optimizer_switch='rowid_filter=off' for ANALYZE SELECT l_orderkey,
 WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
 l_quantity > 45;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	lineitem	range	i_l_shipdate,i_l_quantity	i_l_shipdate	4	NULL	510	510.00	10.07	11.76	Using index condition; Using where
+1	SIMPLE	lineitem	range	i_l_shipdate,i_l_quantity	i_l_shipdate	4	NULL	510	510.00	100.00	11.76	Using index condition; Using where
 set statement optimizer_switch='rowid_filter=off' for ANALYZE FORMAT=JSON SELECT l_orderkey, l_linenumber, l_shipdate, l_quantity FROM lineitem
 WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
 l_quantity > 45;
@@ -284,7 +284,7 @@ ANALYZE
           "r_rows": 510,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 10.07493782,
+          "filtered": 100,
           "r_filtered": 11.76470588,
           "index_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30'",
           "attached_condition": "lineitem.l_quantity > 45"
@@ -633,8 +633,8 @@ WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
 l_quantity > 45 AND
 o_totalprice between 180000 and 230000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	lineitem	range|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity,i_l_quantity	i_l_shipdate|i_l_quantity	4|9	NULL	510 (10%)	Using index condition; Using where; Using rowid filter
-1	SIMPLE	orders	eq_ref	PRIMARY,i_o_totalprice	PRIMARY	4	dbt3_s001.lineitem.l_orderkey	1	Using where
+1	SIMPLE	orders	range	PRIMARY,i_o_totalprice	i_o_totalprice	9	NULL	144	Using where; Using index
+1	SIMPLE	lineitem	ref|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity,i_l_quantity	i_l_orderkey|i_l_shipdate	4|4	dbt3_s001.orders.o_orderkey	4 (8%)	Using where; Using rowid filter
 set statement optimizer_switch='rowid_filter=on' for EXPLAIN FORMAT=JSON SELECT o_orderkey, l_linenumber, l_shipdate, l_quantity, o_totalprice
 FROM orders JOIN lineitem ON o_orderkey=l_orderkey
 WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
@@ -647,8 +647,22 @@ EXPLAIN
     "nested_loop": [
       {
         "table": {
-          "table_name": "lineitem",
+          "table_name": "orders",
           "access_type": "range",
+          "possible_keys": ["PRIMARY", "i_o_totalprice"],
+          "key": "i_o_totalprice",
+          "key_length": "9",
+          "used_key_parts": ["o_totalprice"],
+          "rows": 144,
+          "filtered": 100,
+          "attached_condition": "orders.o_totalprice between 180000 and 230000",
+          "using_index": true
+        }
+      },
+      {
+        "table": {
+          "table_name": "lineitem",
+          "access_type": "ref",
           "possible_keys": [
             "PRIMARY",
             "i_l_shipdate",
@@ -656,35 +670,21 @@ EXPLAIN
             "i_l_orderkey_quantity",
             "i_l_quantity"
           ],
-          "key": "i_l_shipdate",
+          "key": "i_l_orderkey",
           "key_length": "4",
-          "used_key_parts": ["l_shipDATE"],
+          "used_key_parts": ["l_orderkey"],
+          "ref": ["dbt3_s001.orders.o_orderkey"],
           "rowid_filter": {
             "range": {
-              "key": "i_l_quantity",
-              "used_key_parts": ["l_quantity"]
+              "key": "i_l_shipdate",
+              "used_key_parts": ["l_shipDATE"]
             },
-            "rows": 605,
-            "selectivity_pct": 10.07493755
+            "rows": 510,
+            "selectivity_pct": 8.492922565
           },
-          "rows": 510,
-          "filtered": 10.07493782,
-          "index_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30'",
-          "attached_condition": "lineitem.l_quantity > 45"
-        }
-      },
-      {
-        "table": {
-          "table_name": "orders",
-          "access_type": "eq_ref",
-          "possible_keys": ["PRIMARY", "i_o_totalprice"],
-          "key": "PRIMARY",
-          "key_length": "4",
-          "used_key_parts": ["o_orderkey"],
-          "ref": ["dbt3_s001.lineitem.l_orderkey"],
-          "rows": 1,
-          "filtered": 9.600000381,
-          "attached_condition": "orders.o_totalprice between 180000 and 230000"
+          "rows": 4,
+          "filtered": 0.855656624,
+          "attached_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30' and lineitem.l_quantity > 45"
         }
       }
     ]
@@ -696,8 +696,8 @@ WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
 l_quantity > 45 AND
 o_totalprice between 180000 and 230000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	lineitem	range|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity,i_l_quantity	i_l_shipdate|i_l_quantity	4|9	NULL	510 (10%)	60.00 (11%)	10.07	100.00	Using index condition; Using where; Using rowid filter
-1	SIMPLE	orders	eq_ref	PRIMARY,i_o_totalprice	PRIMARY	4	dbt3_s001.lineitem.l_orderkey	1	1.00	9.60	26.67	Using where
+1	SIMPLE	orders	range	PRIMARY,i_o_totalprice	i_o_totalprice	9	NULL	144	144.00	100.00	100.00	Using where; Using index
+1	SIMPLE	lineitem	ref|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity,i_l_quantity	i_l_orderkey|i_l_shipdate	4|4	dbt3_s001.orders.o_orderkey	4 (8%)	0.54 (8%)	0.86	20.51	Using where; Using rowid filter
 set statement optimizer_switch='rowid_filter=on' for ANALYZE FORMAT=JSON SELECT o_orderkey, l_linenumber, l_shipdate, l_quantity, o_totalprice
 FROM orders JOIN lineitem ON o_orderkey=l_orderkey
 WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
@@ -715,8 +715,27 @@ ANALYZE
     "nested_loop": [
       {
         "table": {
-          "table_name": "lineitem",
+          "table_name": "orders",
           "access_type": "range",
+          "possible_keys": ["PRIMARY", "i_o_totalprice"],
+          "key": "i_o_totalprice",
+          "key_length": "9",
+          "used_key_parts": ["o_totalprice"],
+          "r_loops": 1,
+          "rows": 144,
+          "r_rows": 144,
+          "r_table_time_ms": "REPLACED",
+          "r_other_time_ms": "REPLACED",
+          "filtered": 100,
+          "r_filtered": 100,
+          "attached_condition": "orders.o_totalprice between 180000 and 230000",
+          "using_index": true
+        }
+      },
+      {
+        "table": {
+          "table_name": "lineitem",
+          "access_type": "ref",
           "possible_keys": [
             "PRIMARY",
             "i_l_shipdate",
@@ -724,50 +743,31 @@ ANALYZE
             "i_l_orderkey_quantity",
             "i_l_quantity"
           ],
-          "key": "i_l_shipdate",
+          "key": "i_l_orderkey",
           "key_length": "4",
-          "used_key_parts": ["l_shipDATE"],
+          "used_key_parts": ["l_orderkey"],
+          "ref": ["dbt3_s001.orders.o_orderkey"],
           "rowid_filter": {
             "range": {
-              "key": "i_l_quantity",
-              "used_key_parts": ["l_quantity"]
+              "key": "i_l_shipdate",
+              "used_key_parts": ["l_shipDATE"]
             },
-            "rows": 605,
-            "selectivity_pct": 10.07493755,
-            "r_rows": 605,
-            "r_lookups": 510,
-            "r_selectivity_pct": 11.76470588,
+            "rows": 510,
+            "selectivity_pct": 8.492922565,
+            "r_rows": 510,
+            "r_lookups": 954,
+            "r_selectivity_pct": 8.176100629,
             "r_buffer_size": "REPLACED",
             "r_filling_time_ms": "REPLACED"
           },
-          "r_loops": 1,
-          "rows": 510,
-          "r_rows": 60,
-          "r_table_time_ms": "REPLACED",
-          "r_other_time_ms": "REPLACED",
-          "filtered": 10.07493782,
-          "r_filtered": 100,
-          "index_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30'",
-          "attached_condition": "lineitem.l_quantity > 45"
-        }
-      },
-      {
-        "table": {
-          "table_name": "orders",
-          "access_type": "eq_ref",
-          "possible_keys": ["PRIMARY", "i_o_totalprice"],
-          "key": "PRIMARY",
-          "key_length": "4",
-          "used_key_parts": ["o_orderkey"],
-          "ref": ["dbt3_s001.lineitem.l_orderkey"],
-          "r_loops": 60,
-          "rows": 1,
-          "r_rows": 1,
+          "r_loops": 144,
+          "rows": 4,
+          "r_rows": 0.541666667,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 9.600000381,
-          "r_filtered": 26.66666667,
-          "attached_condition": "orders.o_totalprice between 180000 and 230000"
+          "filtered": 0.855656624,
+          "r_filtered": 20.51282051,
+          "attached_condition": "lineitem.l_shipDATE between '1997-01-01' and '1997-06-30' and lineitem.l_quantity > 45"
         }
       }
     ]
@@ -942,6 +942,14 @@ o_orderkey	l_linenumber	l_shipdate	l_quantity	o_totalprice
 5829	5	1997-01-31	49	183734.56
 5895	2	1997-04-27	47	201419.83
 5895	3	1997-03-15	49	201419.83
+set statement optimizer_switch='rowid_filter=on' for EXPLAIN SELECT STRAIGHT_JOIN o_orderkey, l_linenumber, l_shipdate, l_quantity, o_totalprice
+FROM lineitem JOIN orders ON o_orderkey=l_orderkey
+WHERE  l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
+l_quantity > 45 AND
+o_totalprice between 180000 and 230000;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	lineitem	range|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity,i_l_quantity	i_l_shipdate|i_l_quantity	4|9	NULL	510 (10%)	Using index condition; Using where; Using rowid filter
+1	SIMPLE	orders	eq_ref	PRIMARY,i_o_totalprice	PRIMARY	4	dbt3_s001.lineitem.l_orderkey	1	Using where
 set statement optimizer_switch='rowid_filter=on' for EXPLAIN SELECT o_orderkey, l_linenumber, l_shipdate, o_totalprice
 FROM orders JOIN lineitem ON o_orderkey=l_orderkey
 WHERE l_shipdate BETWEEN '1997-01-01' AND '1997-06-30' AND
@@ -1306,7 +1314,7 @@ EXPLAIN
           "key_length": "4",
           "used_key_parts": ["l_receiptDATE"],
           "rows": 18,
-          "filtered": 5.555555344,
+          "filtered": 100,
           "index_condition": "lineitem.l_receiptDATE between '1996-10-05' and '1996-10-10'",
           "attached_condition": "lineitem.l_shipDATE between '1996-10-01' and '1996-10-10'"
         }
@@ -1335,7 +1343,7 @@ l_shipdate BETWEEN '1996-10-01' AND '1996-10-10' AND
 l_receiptdate BETWEEN '1996-10-05' AND '1996-10-10' AND
 o_totalprice BETWEEN 200000 AND 250000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	lineitem	range	PRIMARY,i_l_shipdate,i_l_receiptdate,i_l_orderkey,i_l_orderkey_quantity	i_l_receiptdate	4	NULL	18	18.00	5.56	38.89	Using index condition; Using where
+1	SIMPLE	lineitem	range	PRIMARY,i_l_shipdate,i_l_receiptdate,i_l_orderkey,i_l_orderkey_quantity	i_l_receiptdate	4	NULL	18	18.00	100.00	38.89	Using index condition; Using where
 1	SIMPLE	orders	eq_ref	PRIMARY,i_o_totalprice	PRIMARY	4	dbt3_s001.lineitem.l_orderkey	1	1.00	5.67	14.29	Using where
 set statement optimizer_switch='rowid_filter=on' for ANALYZE FORMAT=JSON SELECT l_shipdate, l_receiptdate, o_totalprice
 FROM orders, lineitem
@@ -1372,7 +1380,7 @@ ANALYZE
           "r_rows": 18,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 5.555555344,
+          "filtered": 100,
           "r_filtered": 38.88888889,
           "index_condition": "lineitem.l_receiptDATE between '1996-10-05' and '1996-10-10'",
           "attached_condition": "lineitem.l_shipDATE between '1996-10-01' and '1996-10-10'"
@@ -1443,7 +1451,7 @@ EXPLAIN
           "key_length": "4",
           "used_key_parts": ["l_receiptDATE"],
           "rows": 18,
-          "filtered": 5.555555344,
+          "filtered": 100,
           "index_condition": "lineitem.l_receiptDATE between '1996-10-05' and '1996-10-10'",
           "attached_condition": "lineitem.l_shipDATE between '1996-10-01' and '1996-10-10'"
         }
@@ -1472,7 +1480,7 @@ l_shipdate BETWEEN '1996-10-01' AND '1996-10-10' AND
 l_receiptdate BETWEEN '1996-10-05' AND '1996-10-10' AND
 o_totalprice BETWEEN 200000 AND 250000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	lineitem	range	PRIMARY,i_l_shipdate,i_l_receiptdate,i_l_orderkey,i_l_orderkey_quantity	i_l_receiptdate	4	NULL	18	18.00	5.56	38.89	Using index condition; Using where
+1	SIMPLE	lineitem	range	PRIMARY,i_l_shipdate,i_l_receiptdate,i_l_orderkey,i_l_orderkey_quantity	i_l_receiptdate	4	NULL	18	18.00	100.00	38.89	Using index condition; Using where
 1	SIMPLE	orders	eq_ref	PRIMARY,i_o_totalprice	PRIMARY	4	dbt3_s001.lineitem.l_orderkey	1	1.00	5.67	14.29	Using where
 set statement optimizer_switch='rowid_filter=off' for ANALYZE FORMAT=JSON SELECT l_shipdate, l_receiptdate, o_totalprice
 FROM orders, lineitem
@@ -1509,7 +1517,7 @@ ANALYZE
           "r_rows": 18,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 5.555555344,
+          "filtered": 100,
           "r_filtered": 38.88888889,
           "index_condition": "lineitem.l_receiptDATE between '1996-10-05' and '1996-10-10'",
           "attached_condition": "lineitem.l_shipDATE between '1996-10-01' and '1996-10-10'"
@@ -1560,7 +1568,7 @@ o_totalprice BETWEEN 200000 AND 220000 AND
 l_shipdate BETWEEN '1996-10-01' AND '1996-12-01';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	orders	range	PRIMARY,i_o_totalprice,i_o_totaldiscount	i_o_totaldiscount	9	NULL	41	Using index condition; Using where
-1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	PRIMARY	4	dbt3_s001.orders.o_orderkey	4	Using where
+1	SIMPLE	lineitem	ref|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey|i_l_shipdate	4|4	dbt3_s001.orders.o_orderkey	4 (3%)	Using where; Using rowid filter
 set statement optimizer_switch='rowid_filter=on' for EXPLAIN FORMAT=JSON SELECT o_totaldiscount, o_totalprice, l_shipdate
 FROM orders, lineitem
 WHERE o_orderkey=l_orderkey AND
@@ -1581,7 +1589,7 @@ EXPLAIN
           "key_length": "9",
           "used_key_parts": ["o_totaldiscount"],
           "rows": 41,
-          "filtered": 3.333333254,
+          "filtered": 100,
           "index_condition": "orders.o_totaldiscount between 18000 and 20000",
           "attached_condition": "orders.o_totalprice between 200000 and 220000"
         }
@@ -1596,10 +1604,18 @@ EXPLAIN
             "i_l_orderkey",
             "i_l_orderkey_quantity"
           ],
-          "key": "PRIMARY",
+          "key": "i_l_orderkey",
           "key_length": "4",
           "used_key_parts": ["l_orderkey"],
           "ref": ["dbt3_s001.orders.o_orderkey"],
+          "rowid_filter": {
+            "range": {
+              "key": "i_l_shipdate",
+              "used_key_parts": ["l_shipDATE"]
+            },
+            "rows": 183,
+            "selectivity_pct": 3.04746045
+          },
           "rows": 4,
           "filtered": 3.047460556,
           "attached_condition": "lineitem.l_shipDATE between '1996-10-01' and '1996-12-01'"
@@ -1615,8 +1631,8 @@ o_totaldiscount BETWEEN 18000 AND 20000 AND
 o_totalprice BETWEEN 200000 AND 220000 AND
 l_shipdate BETWEEN '1996-10-01' AND '1996-12-01';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	orders	range	PRIMARY,i_o_totalprice,i_o_totaldiscount	i_o_totaldiscount	9	NULL	41	41.00	3.33	2.44	Using index condition; Using where
-1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	PRIMARY	4	dbt3_s001.orders.o_orderkey	4	6.00	3.05	66.67	Using where
+1	SIMPLE	orders	range	PRIMARY,i_o_totalprice,i_o_totaldiscount	i_o_totaldiscount	9	NULL	41	41.00	100.00	2.44	Using index condition; Using where
+1	SIMPLE	lineitem	ref|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey|i_l_shipdate	4|4	dbt3_s001.orders.o_orderkey	4 (3%)	4.00 (66%)	3.05	100.00	Using where; Using rowid filter
 set statement optimizer_switch='rowid_filter=on' for ANALYZE FORMAT=JSON SELECT o_totaldiscount, o_totalprice, l_shipdate
 FROM orders, lineitem
 WHERE o_orderkey=l_orderkey AND
@@ -1646,7 +1662,7 @@ ANALYZE
           "r_rows": 41,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 3.333333254,
+          "filtered": 100,
           "r_filtered": 2.43902439,
           "index_condition": "orders.o_totaldiscount between 18000 and 20000",
           "attached_condition": "orders.o_totalprice between 200000 and 220000"
@@ -1662,17 +1678,30 @@ ANALYZE
             "i_l_orderkey",
             "i_l_orderkey_quantity"
           ],
-          "key": "PRIMARY",
+          "key": "i_l_orderkey",
           "key_length": "4",
           "used_key_parts": ["l_orderkey"],
           "ref": ["dbt3_s001.orders.o_orderkey"],
+          "rowid_filter": {
+            "range": {
+              "key": "i_l_shipdate",
+              "used_key_parts": ["l_shipDATE"]
+            },
+            "rows": 183,
+            "selectivity_pct": 3.04746045,
+            "r_rows": 183,
+            "r_lookups": 6,
+            "r_selectivity_pct": 66.66666667,
+            "r_buffer_size": "REPLACED",
+            "r_filling_time_ms": "REPLACED"
+          },
           "r_loops": 1,
           "rows": 4,
-          "r_rows": 6,
+          "r_rows": 4,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
           "filtered": 3.047460556,
-          "r_filtered": 66.66666667,
+          "r_filtered": 100,
           "attached_condition": "lineitem.l_shipDATE between '1996-10-01' and '1996-12-01'"
         }
       }
@@ -1719,7 +1748,7 @@ EXPLAIN
           "key_length": "9",
           "used_key_parts": ["o_totaldiscount"],
           "rows": 41,
-          "filtered": 3.333333254,
+          "filtered": 100,
           "index_condition": "orders.o_totaldiscount between 18000 and 20000",
           "attached_condition": "orders.o_totalprice between 200000 and 220000"
         }
@@ -1753,7 +1782,7 @@ o_totaldiscount BETWEEN 18000 AND 20000 AND
 o_totalprice BETWEEN 200000 AND 220000 AND
 l_shipdate BETWEEN '1996-10-01' AND '1996-12-01';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	orders	range	PRIMARY,i_o_totalprice,i_o_totaldiscount	i_o_totaldiscount	9	NULL	41	41.00	3.33	2.44	Using index condition; Using where
+1	SIMPLE	orders	range	PRIMARY,i_o_totalprice,i_o_totaldiscount	i_o_totaldiscount	9	NULL	41	41.00	100.00	2.44	Using index condition; Using where
 1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	PRIMARY	4	dbt3_s001.orders.o_orderkey	4	6.00	3.05	66.67	Using where
 set statement optimizer_switch='rowid_filter=off' for ANALYZE FORMAT=JSON SELECT o_totaldiscount, o_totalprice, l_shipdate
 FROM orders, lineitem
@@ -1784,7 +1813,7 @@ ANALYZE
           "r_rows": 41,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 3.333333254,
+          "filtered": 100,
           "r_filtered": 2.43902439,
           "index_condition": "orders.o_totaldiscount between 18000 and 20000",
           "attached_condition": "orders.o_totalprice between 200000 and 220000"
@@ -1839,7 +1868,7 @@ o_totalprice BETWEEN 200000 AND 220000 AND
 l_shipdate BETWEEN '1996-10-01' AND '1996-12-01';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	orders	range	PRIMARY,i_o_orderdate,i_o_totalprice,i_o_totaldiscount	i_o_totaldiscount	9	NULL	41	Using index condition; Using where
-1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	PRIMARY	4	dbt3_s001.orders.o_orderkey	4	Using where
+1	SIMPLE	lineitem	ref|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey|i_l_shipdate	4|4	dbt3_s001.orders.o_orderkey	4 (3%)	Using where; Using rowid filter
 set statement optimizer_switch='rowid_filter=on' for EXPLAIN FORMAT=JSON SELECT o_totaldiscount, o_totalprice, l_shipdate
 FROM v1, lineitem
 WHERE o_orderkey=l_orderkey AND
@@ -1880,10 +1909,18 @@ EXPLAIN
             "i_l_orderkey",
             "i_l_orderkey_quantity"
           ],
-          "key": "PRIMARY",
+          "key": "i_l_orderkey",
           "key_length": "4",
           "used_key_parts": ["l_orderkey"],
           "ref": ["dbt3_s001.orders.o_orderkey"],
+          "rowid_filter": {
+            "range": {
+              "key": "i_l_shipdate",
+              "used_key_parts": ["l_shipDATE"]
+            },
+            "rows": 183,
+            "selectivity_pct": 3.04746045
+          },
           "rows": 4,
           "filtered": "REPLACED",
           "attached_condition": "lineitem.l_shipDATE between '1996-10-01' and '1996-12-01'"
@@ -1900,7 +1937,7 @@ o_totalprice BETWEEN 200000 AND 220000 AND
 l_shipdate BETWEEN '1996-10-01' AND '1996-12-01';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
 1	SIMPLE	orders	range	PRIMARY,i_o_orderdate,i_o_totalprice,i_o_totaldiscount	i_o_totaldiscount	9	NULL	41	41.00	#	2.44	Using index condition; Using where
-1	SIMPLE	lineitem	ref	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	PRIMARY	4	dbt3_s001.orders.o_orderkey	4	6.00	#	66.67	Using where
+1	SIMPLE	lineitem	ref|filter	PRIMARY,i_l_shipdate,i_l_orderkey,i_l_orderkey_quantity	i_l_orderkey|i_l_shipdate	4|4	dbt3_s001.orders.o_orderkey	4 (3%)	4.00 (66%)	#	100.00	Using where; Using rowid filter
 set statement optimizer_switch='rowid_filter=on' for ANALYZE FORMAT=JSON SELECT o_totaldiscount, o_totalprice, l_shipdate
 FROM v1, lineitem
 WHERE o_orderkey=l_orderkey AND
@@ -1951,17 +1988,30 @@ ANALYZE
             "i_l_orderkey",
             "i_l_orderkey_quantity"
           ],
-          "key": "PRIMARY",
+          "key": "i_l_orderkey",
           "key_length": "4",
           "used_key_parts": ["l_orderkey"],
           "ref": ["dbt3_s001.orders.o_orderkey"],
+          "rowid_filter": {
+            "range": {
+              "key": "i_l_shipdate",
+              "used_key_parts": ["l_shipDATE"]
+            },
+            "rows": 183,
+            "selectivity_pct": 3.04746045,
+            "r_rows": 183,
+            "r_lookups": 6,
+            "r_selectivity_pct": 66.66666667,
+            "r_buffer_size": "REPLACED",
+            "r_filling_time_ms": "REPLACED"
+          },
           "r_loops": 1,
           "rows": 4,
-          "r_rows": 6,
+          "r_rows": 4,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
           "filtered": "REPLACED",
-          "r_filtered": 66.66666667,
+          "r_filtered": 100,
           "attached_condition": "lineitem.l_shipDATE between '1996-10-01' and '1996-12-01'"
         }
       }
@@ -2747,7 +2797,7 @@ ANALYZE
           "r_rows": 44,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 8.630000114,
+          "filtered": 100,
           "r_filtered": 0,
           "index_condition": "t1.nm like '3400%' or t1.nm like '3402%' or t1.nm like '3403%' or t1.nm like '3404%' or t1.nm like '3405%' or t1.nm like '3406%' or t1.nm like '3407%' or t1.nm like '3409%' or t1.nm like '3411%' or t1.nm like '3412%' or t1.nm like '3413%' or t1.nm like '3414%' or t1.nm like '3415%' or t1.nm like '3416%' or t1.nm like '3417%' or t1.nm like '3418%' or t1.nm like '3419%' or t1.nm like '3421%' or t1.nm like '3422%' or t1.nm like '3423%' or t1.nm like '3424%' or t1.nm like '3425%' or t1.nm like '3426%' or t1.nm like '3427%' or t1.nm like '3428%' or t1.nm like '3429%' or t1.nm like '3430%' or t1.nm like '3431%' or t1.nm like '3432%' or t1.nm like '3433%' or t1.nm like '3434%' or t1.nm like '3435%' or t1.nm like '3436%' or t1.nm like '3437%' or t1.nm like '3439%' or t1.nm like '3440%' or t1.nm like '3441%' or t1.nm like '3442%' or t1.nm like '3443%' or t1.nm like '3444%' or t1.nm like '3445%' or t1.nm like '3446%' or t1.nm like '3447%' or t1.nm like '3448%'",
           "attached_condition": "t1.fl2 = 0"
@@ -2800,7 +2850,7 @@ ANALYZE
           "r_rows": 0,
           "r_table_time_ms": "REPLACED",
           "r_other_time_ms": "REPLACED",
-          "filtered": 8.529999733,
+          "filtered": 100,
           "r_filtered": 100,
           "index_condition": "t1.nm like '3400%' or t1.nm like '3402%' or t1.nm like '3403%' or t1.nm like '3404%' or t1.nm like '3405%' or t1.nm like '3406%' or t1.nm like '3407%' or t1.nm like '3409%' or t1.nm like '3411%' or t1.nm like '3412%' or t1.nm like '3413%' or t1.nm like '3414%' or t1.nm like '3415%' or t1.nm like '3416%' or t1.nm like '3417%' or t1.nm like '3418%' or t1.nm like '3419%' or t1.nm like '3421%' or t1.nm like '3422%' or t1.nm like '3423%' or t1.nm like '3424%' or t1.nm like '3425%' or t1.nm like '3426%' or t1.nm like '3427%' or t1.nm like '3428%' or t1.nm like '3429%' or t1.nm like '3430%' or t1.nm like '3431%' or t1.nm like '3432%' or t1.nm like '3433%' or t1.nm like '3434%' or t1.nm like '3435%' or t1.nm like '3436%' or t1.nm like '3437%' or t1.nm like '3439%' or t1.nm like '3440%' or t1.nm like '3441%' or t1.nm like '3442%' or t1.nm like '3443%' or t1.nm like '3444%' or t1.nm like '3445%' or t1.nm like '3446%' or t1.nm like '3447%' or t1.nm like '3448%'",
           "attached_condition": "t1.fl2 = 0"
@@ -2854,8 +2904,8 @@ union
 ( select * from t1
 where (f1 is null and f2 is null) and (f2 between 'a' and 'z' or f1 in ('a')));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t1	ref|filter	f1,f2	f1|f1	13|13	const	1 (2%)	Using index condition; Using where; Using rowid filter
-2	UNION	t1	ref|filter	f1,f2	f1|f1	13|13	const	1 (2%)	Using index condition; Using where; Using rowid filter
+1	PRIMARY	t1	index_merge	f1,f2	f1,f2	13,33	NULL	1	Using intersect(f1,f2); Using where
+2	UNION	t1	index_merge	f1,f2	f1,f2	13,33	NULL	1	Using intersect(f1,f2); Using where
 NULL	UNION RESULT	<union1,2>	ALL	NULL	NULL	NULL	NULL	NULL	
 explain format=json ( select * from t1
 where (f1 is null and f2 is null) and (f2 between 'a' and 'z' or f1 in ('a')))
@@ -2876,24 +2926,28 @@ EXPLAIN
               {
                 "table": {
                   "table_name": "t1",
-                  "access_type": "ref",
+                  "access_type": "index_merge",
                   "possible_keys": ["f1", "f2"],
-                  "key": "f1",
-                  "key_length": "13",
-                  "used_key_parts": ["f1"],
-                  "ref": ["const"],
-                  "rowid_filter": {
-                    "range": {
-                      "key": "f1",
-                      "used_key_parts": ["f1"]
-                    },
-                    "rows": 1,
-                    "selectivity_pct": 1.587301587
+                  "key_length": "13,33",
+                  "index_merge": {
+                    "intersect": [
+                      {
+                        "range": {
+                          "key": "f1",
+                          "used_key_parts": ["f1"]
+                        }
+                      },
+                      {
+                        "range": {
+                          "key": "f2",
+                          "used_key_parts": ["f2"]
+                        }
+                      }
+                    ]
                   },
                   "rows": 1,
-                  "filtered": 1.587301612,
-                  "index_condition": "t1.f1 is null",
-                  "attached_condition": "t1.f2 is null and (t1.f2 between 'a' and 'z' or t1.f1 = 'a')"
+                  "filtered": 100,
+                  "attached_condition": "t1.f1 is null and t1.f2 is null and (t1.f2 between 'a' and 'z' or t1.f1 = 'a')"
                 }
               }
             ]
@@ -2907,24 +2961,28 @@ EXPLAIN
               {
                 "table": {
                   "table_name": "t1",
-                  "access_type": "ref",
+                  "access_type": "index_merge",
                   "possible_keys": ["f1", "f2"],
-                  "key": "f1",
-                  "key_length": "13",
-                  "used_key_parts": ["f1"],
-                  "ref": ["const"],
-                  "rowid_filter": {
-                    "range": {
-                      "key": "f1",
-                      "used_key_parts": ["f1"]
-                    },
-                    "rows": 1,
-                    "selectivity_pct": 1.587301587
+                  "key_length": "13,33",
+                  "index_merge": {
+                    "intersect": [
+                      {
+                        "range": {
+                          "key": "f1",
+                          "used_key_parts": ["f1"]
+                        }
+                      },
+                      {
+                        "range": {
+                          "key": "f2",
+                          "used_key_parts": ["f2"]
+                        }
+                      }
+                    ]
                   },
                   "rows": 1,
-                  "filtered": 1.587301612,
-                  "index_condition": "t1.f1 is null",
-                  "attached_condition": "t1.f2 is null and (t1.f2 between 'a' and 'z' or t1.f1 = 'a')"
+                  "filtered": 100,
+                  "attached_condition": "t1.f1 is null and t1.f2 is null and (t1.f2 between 'a' and 'z' or t1.f1 = 'a')"
                 }
               }
             ]
@@ -2988,7 +3046,7 @@ count(*)
 5
 explain extended select count(*) from t1 where a between 21 and 30 and b=2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	ref	b,a	b	5	const	24	9.60	Using where
+1	SIMPLE	t1	ref|filter	b,a	b|a	5|5	const	24 (10%)	9.60	Using where; Using rowid filter
 Warnings:
 Note	1003	select count(0) AS `count(*)` from `test`.`t1` where `test`.`t1`.`b` = 2 and `test`.`t1`.`a` between 21 and 30
 select * from t1 where a between 21 and 30 and b=2;
@@ -3441,16 +3499,16 @@ WHERE 1 = 1 AND domain = 'www.mailhost.i-dev.fr' AND
 timestamp >= DATE_ADD('2017-01-30 08:24:51', INTERVAL -1 MONTH)
 ORDER BY timestamp DESC;
 id	domain	registrant_name	registrant_organization	registrant_street1	registrant_street2	registrant_street3	registrant_street4	registrant_street5	registrant_city	registrant_postal_code	registrant_country	registrant_email	registrant_telephone	administrative_name	administrative_organization	administrative_street1	administrative_street2	administrative_street3	administrative_street4	administrative_street5	administrative_city	administrative_postal_code	administrative_country	administrative_email	administrative_telephone	technical_name	technical_organization	technical_street1	technical_street2	technical_street3	technical_street4	technical_street5	technical_city	technical_postal_code	technical_country	technical_email	technical_telephone	json	timestamp
-80551	www.mailhost.i-dev.fr	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL		2017-01-30 10:00:56
-80579	www.mailhost.i-dev.fr	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL		2017-01-30 10:00:56
-80594	www.mailhost.i-dev.fr	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL		2017-01-30 10:00:56
 80609	www.mailhost.i-dev.fr	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL		2017-01-30 10:00:56
+80594	www.mailhost.i-dev.fr	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL		2017-01-30 10:00:56
+80579	www.mailhost.i-dev.fr	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL		2017-01-30 10:00:56
+80551	www.mailhost.i-dev.fr	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL		2017-01-30 10:00:56
 EXPLAIN EXTENDED SELECT * FROM t1
 WHERE 1 = 1 AND domain = 'www.mailhost.i-dev.fr' AND
 timestamp >= DATE_ADD('2017-01-30 08:24:51', INTERVAL -1 MONTH)
 ORDER BY timestamp DESC;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	ALL	ixEventWhoisDomainDomain,ixEventWhoisDomainTimestamp	NULL	NULL	NULL	60	22.22	Using where; Using filesort
+1	SIMPLE	t1	range|filter	ixEventWhoisDomainDomain,ixEventWhoisDomainTimestamp	ixEventWhoisDomainTimestamp|ixEventWhoisDomainDomain	4|98	NULL	20 (67%)	66.67	Using where; Using rowid filter
 Warnings:
 Note	1003	select `test`.`t1`.`id` AS `id`,`test`.`t1`.`domain` AS `domain`,`test`.`t1`.`registrant_name` AS `registrant_name`,`test`.`t1`.`registrant_organization` AS `registrant_organization`,`test`.`t1`.`registrant_street1` AS `registrant_street1`,`test`.`t1`.`registrant_street2` AS `registrant_street2`,`test`.`t1`.`registrant_street3` AS `registrant_street3`,`test`.`t1`.`registrant_street4` AS `registrant_street4`,`test`.`t1`.`registrant_street5` AS `registrant_street5`,`test`.`t1`.`registrant_city` AS `registrant_city`,`test`.`t1`.`registrant_postal_code` AS `registrant_postal_code`,`test`.`t1`.`registrant_country` AS `registrant_country`,`test`.`t1`.`registrant_email` AS `registrant_email`,`test`.`t1`.`registrant_telephone` AS `registrant_telephone`,`test`.`t1`.`administrative_name` AS `administrative_name`,`test`.`t1`.`administrative_organization` AS `administrative_organization`,`test`.`t1`.`administrative_street1` AS `administrative_street1`,`test`.`t1`.`administrative_street2` AS `administrative_street2`,`test`.`t1`.`administrative_street3` AS `administrative_street3`,`test`.`t1`.`administrative_street4` AS `administrative_street4`,`test`.`t1`.`administrative_street5` AS `administrative_street5`,`test`.`t1`.`administrative_city` AS `administrative_city`,`test`.`t1`.`administrative_postal_code` AS `administrative_postal_code`,`test`.`t1`.`administrative_country` AS `administrative_country`,`test`.`t1`.`administrative_email` AS `administrative_email`,`test`.`t1`.`administrative_telephone` AS `administrative_telephone`,`test`.`t1`.`technical_name` AS `technical_name`,`test`.`t1`.`technical_organization` AS `technical_organization`,`test`.`t1`.`technical_street1` AS `technical_street1`,`test`.`t1`.`technical_street2` AS `technical_street2`,`test`.`t1`.`technical_street3` AS `technical_street3`,`test`.`t1`.`technical_street4` AS `technical_street4`,`test`.`t1`.`technical_street5` AS `technical_street5`,`test`.`t1`.`technical_city` AS `technical_city`,`test`.`t1`.`technical_postal_code` AS `technical_postal_code`,`test`.`t1`.`technical_country` AS `technical_country`,`test`.`t1`.`technical_email` AS `technical_email`,`test`.`t1`.`technical_telephone` AS `technical_telephone`,`test`.`t1`.`json` AS `json`,`test`.`t1`.`timestamp` AS `timestamp` from `test`.`t1` where `test`.`t1`.`domain` = 'www.mailhost.i-dev.fr' and `test`.`t1`.`timestamp` >= <cache>('2017-01-30 08:24:51' + interval -1 month) order by `test`.`t1`.`timestamp` desc
 SET optimizer_switch=@save_optimizer_switch;
@@ -3497,7 +3555,7 @@ SELECT * FROM t1
 WHERE (a BETWEEN 9 AND 10 OR a IS NULL) AND (b BETWEEN 9 AND 10 OR b = 9)
 ORDER BY pk LIMIT 1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	index	a,b	PRIMARY	4	NULL	75	54.55	Using where
+1	SIMPLE	t1	index	a,b	PRIMARY	4	NULL	75	100.00	Using where
 Warnings:
 Note	1003	select `test`.`t1`.`pk` AS `pk`,`test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where (`test`.`t1`.`a` between 9 and 10 or `test`.`t1`.`a` is null) and (`test`.`t1`.`b` between 9 and 10 or `test`.`t1`.`b` = 9) order by `test`.`t1`.`pk` limit 1
 ANALYZE
@@ -3505,7 +3563,7 @@ SELECT * FROM t1
 WHERE (a BETWEEN 9 AND 10 OR a IS NULL) AND (b BETWEEN 9 AND 10 OR b = 9)
 ORDER BY pk LIMIT 1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	t1	index	a,b	PRIMARY	4	NULL	3008	3008.00	1.36	0.00	Using where
+1	SIMPLE	t1	index	a,b	PRIMARY	4	NULL	3008	3008.00	6.38	0.00	Using where
 DROP TABLE t1;
 SET global innodb_stats_persistent= @stats.save;
 #
@@ -4082,7 +4140,7 @@ WHERE t1.c1 NOT IN (SELECT t2.c1 FROM t2, t1 AS a1
 WHERE t2.i1 = t1.pk AND t2.i1 BETWEEN 3 AND 5);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	60	100.00	Using where
-2	DEPENDENT SUBQUERY	t2	ref	c1,i1	i1	5	test.t1.pk	20	100.00	Using index condition; Using where
+2	DEPENDENT SUBQUERY	t2	ref|filter	c1,i1	c1|i1	3|5	func	38 (25%)	25.00	Using where; Full scan on NULL key; Using rowid filter
 2	DEPENDENT SUBQUERY	a1	ALL	NULL	NULL	NULL	NULL	60	100.00	Using join buffer (flat, BNL join)
 Warnings:
 Note	1276	Field or reference 'test.t1.pk' of SELECT #2 was resolved in SELECT #1
diff --git a/mysql-test/main/select.result b/mysql-test/main/select.result
index 2b545fe5e94..675601df08c 100644
--- a/mysql-test/main/select.result
+++ b/mysql-test/main/select.result
@@ -3540,7 +3540,7 @@ WHERE t1.id=2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	const	PRIMARY	PRIMARY	4	const	1	
 1	SIMPLE	t2	const	idx1	NULL	NULL	NULL	1	
-1	SIMPLE	t3	ref	idx1	idx1	5	const	4	
+1	SIMPLE	t3	ALL	idx1	NULL	NULL	NULL	9	Using where
 SELECT * FROM t1 LEFT JOIN t2 ON t2.b=t1.a INNER JOIN t3 ON t3.d=t1.id
 WHERE t1.id=2;
 id	a	b	c	d	e
@@ -3597,7 +3597,7 @@ CREATE TABLE t1(id int PRIMARY KEY, b int, e int);
 CREATE TABLE t2(i int, a int, INDEX si(i), INDEX ai(a));
 CREATE TABLE t3(a int PRIMARY KEY, c char(4), INDEX ci(c));
 INSERT INTO t1 VALUES 
-(1,10,19), (2,20,22), (4,41,42), (9,93,95), (7, 77,79),
+(1,10,19), (2,20,22), (4,41,42), (9,39,95), (7, 77,79),
 (6,63,67), (5,55,58), (3,38,39), (8,81,89);
 INSERT INTO t2 VALUES
 (21,210), (41,410), (82,820), (83,830), (84,840),
@@ -3625,6 +3625,14 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	const	PRIMARY	PRIMARY	4	const	1	
 1	SIMPLE	t2	range	si,ai	si	5	NULL	4	Using index condition; Using where
 1	SIMPLE	t3	eq_ref|filter	PRIMARY,ci	PRIMARY|ci	4|5	test.t2.a	1 (30%)	Using where; Using rowid filter
+EXPLAIN
+SELECT t3.a FROM t1,t2 FORCE INDEX (si),t3
+WHERE t1.id = 9 AND t2.i BETWEEN t1.b AND t1.e AND 
+t3.a=t2.a AND t3.c IN ('bb','ee');
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	const	PRIMARY	PRIMARY	4	const	1	
+1	SIMPLE	t2	range	si	si	5	NULL	13	Using index condition; Using where
+1	SIMPLE	t3	eq_ref|filter	PRIMARY,ci	PRIMARY|ci	4|5	test.t2.a	1 (30%)	Using where; Using rowid filter
 EXPLAIN 
 SELECT t3.a FROM t1,t2 FORCE INDEX (si),t3
 WHERE t1.id = 8 AND (t2.i=t1.b OR t2.i=t1.e) AND t3.a=t2.a AND
@@ -3717,7 +3725,7 @@ COUNT(*)
 EXPLAIN SELECT * FROM t1
 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null=3 ;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	idx1,idx2	idx2	4	const	2	Using where
+1	SIMPLE	t1	index_merge	idx1,idx2	idx2,idx1	4,10	NULL	1	Using intersect(idx2,idx1); Using where; Using index
 EXPLAIN SELECT * FROM t1
 WHERE ID_better=1 AND ID1_with_null=3 AND ID2_with_null=3 IS NULL ;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
@@ -3731,7 +3739,7 @@ CREATE UNIQUE INDEX idx1 ON t1(ID1_with_null,ID2_with_null);
 EXPLAIN SELECT * FROM t1
 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null=3 ;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	idx1,idx2	idx2	4	const	2	Using where
+1	SIMPLE	t1	index_merge	idx1,idx2	idx2,idx1	4,10	NULL	1	Using intersect(idx2,idx1); Using where; Using index
 EXPLAIN SELECT * FROM t1
 WHERE ID_better=1 AND ID1_with_null=3 AND ID2_with_null IS NULL ;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
@@ -3744,7 +3752,7 @@ EXPLAIN SELECT * FROM t1
 WHERE ID_better=1 AND ID1_with_null IS NULL AND 
 (ID2_with_null=1 OR ID2_with_null=2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	idx1,idx2	idx2	4	const	2	Using where
+1	SIMPLE	t1	ref|filter	idx1,idx2	idx1|idx2	5|4	const	2 (1%)	Using index condition; Using where; Using rowid filter
 DROP TABLE t1;
 CREATE TABLE t1 (a INT, ts TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, KEY ts(ts));
 INSERT INTO t1 VALUES (30,"2006-01-03 23:00:00"), (31,"2006-01-03 23:00:00");
@@ -3765,7 +3773,7 @@ AND t1.ts BETWEEN t2.dt1 AND t2.dt2
 AND t1.ts BETWEEN "2006-01-01" AND "2006-12-31";
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	const	PRIMARY	PRIMARY	4	const	1	
-1	SIMPLE	t1	range	ts	ts	4	NULL	2	Using index condition; Using where
+1	SIMPLE	t1	ALL	ts	NULL	NULL	NULL	2	Using where
 SELECT * FROM t1 LEFT JOIN t2 ON (t1.a=t2.a) WHERE t1.a=30
 AND t1.ts BETWEEN t2.dt1 AND t2.dt2
 AND t1.ts BETWEEN "2006-01-01" AND "2006-12-31";
@@ -4031,7 +4039,7 @@ EXPLAIN SELECT COUNT(*) FROM t1 f1 INNER JOIN t1 f2
 ON ( f1.b=f2.b AND f1.a<f2.a ) 
 WHERE 1 AND f1.b NOT IN (100,2232,3343,51111);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	f1	range	inx	inx	5	NULL	7	Using where; Using index
+1	SIMPLE	f1	index	inx	inx	10	NULL	7	Using where; Using index
 1	SIMPLE	f2	ref	inx	inx	5	test.f1.b	1	Using where; Using index
 DROP TABLE t1;
 CREATE TABLE t1 (c1 INT, c2 INT);
diff --git a/mysql-test/main/select.test b/mysql-test/main/select.test
index 823aa0d54c9..2974987a683 100644
--- a/mysql-test/main/select.test
+++ b/mysql-test/main/select.test
@@ -1532,7 +1532,6 @@ INSERT INTO t4 (companynr, companyname) VALUES (68,'company 10');
 INSERT INTO t4 (companynr, companyname) VALUES (50,'company 11');
 INSERT INTO t4 (companynr, companyname) VALUES (00,'Unknown');
 --enable_query_log
-
 #
 # Test of stright join to force a full join.
 #
@@ -3140,7 +3139,7 @@ CREATE TABLE t2(i int, a int, INDEX si(i), INDEX ai(a));
 CREATE TABLE t3(a int PRIMARY KEY, c char(4), INDEX ci(c));
 
 INSERT INTO t1 VALUES 
-  (1,10,19), (2,20,22), (4,41,42), (9,93,95), (7, 77,79),
+  (1,10,19), (2,20,22), (4,41,42), (9,39,95), (7, 77,79),
   (6,63,67), (5,55,58), (3,38,39), (8,81,89);
 INSERT INTO t2 VALUES
   (21,210), (41,410), (82,820), (83,830), (84,840),
@@ -3162,6 +3161,11 @@ SELECT t3.a FROM t1,t2,t3
   WHERE t1.id = 8 AND t2.i BETWEEN t1.b AND t1.e AND
         t3.a=t2.a AND t3.c IN ('bb','ee') ;
 
+EXPLAIN
+SELECT t3.a FROM t1,t2 FORCE INDEX (si),t3
+  WHERE t1.id = 9 AND t2.i BETWEEN t1.b AND t1.e AND 
+        t3.a=t2.a AND t3.c IN ('bb','ee');
+
 EXPLAIN 
 SELECT t3.a FROM t1,t2 FORCE INDEX (si),t3
   WHERE t1.id = 8 AND (t2.i=t1.b OR t2.i=t1.e) AND t3.a=t2.a AND
diff --git a/mysql-test/main/select_jcl6.result b/mysql-test/main/select_jcl6.result
index 7541fdf9e56..19970c90c7f 100644
--- a/mysql-test/main/select_jcl6.result
+++ b/mysql-test/main/select_jcl6.result
@@ -1391,16 +1391,16 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 delete from t2 where fld1=999999;
 explain select t2.companynr,companyname from t4 left join t2 using (companynr) where t2.companynr > 0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1199	Using where
-1	SIMPLE	t4	eq_ref	PRIMARY	PRIMARY	1	test.t2.companynr	1	Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
+1	SIMPLE	t4	ALL	PRIMARY	NULL	NULL	NULL	12	Using where
+1	SIMPLE	t2	hash_ALL	NULL	#hash#$hj	1	test.t4.companynr	1199	Using where; Using join buffer (flat, BNLH join)
 explain select t2.companynr,companyname from t4 left join t2 using (companynr) where t2.companynr > 0 or t2.companynr < 0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1199	Using where
-1	SIMPLE	t4	eq_ref	PRIMARY	PRIMARY	1	test.t2.companynr	1	Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
+1	SIMPLE	t4	ALL	PRIMARY	NULL	NULL	NULL	12	Using where
+1	SIMPLE	t2	hash_ALL	NULL	#hash#$hj	1	test.t4.companynr	1199	Using where; Using join buffer (flat, BNLH join)
 explain select t2.companynr,companyname from t4 left join t2 using (companynr) where t2.companynr > 0 and t4.companynr > 0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1199	Using where
-1	SIMPLE	t4	eq_ref	PRIMARY	PRIMARY	1	test.t2.companynr	1	Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
+1	SIMPLE	t4	ALL	PRIMARY	NULL	NULL	NULL	12	Using where
+1	SIMPLE	t2	hash_ALL	NULL	#hash#$hj	1	test.t4.companynr	1199	Using where; Using join buffer (flat, BNLH join)
 explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t4	ALL	PRIMARY	NULL	NULL	NULL	12	Using where
@@ -3551,7 +3551,7 @@ WHERE t1.id=2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	const	PRIMARY	PRIMARY	4	const	1	
 1	SIMPLE	t2	const	idx1	NULL	NULL	NULL	1	
-1	SIMPLE	t3	ref	idx1	idx1	5	const	4	
+1	SIMPLE	t3	ALL	idx1	NULL	NULL	NULL	9	Using where
 SELECT * FROM t1 LEFT JOIN t2 ON t2.b=t1.a INNER JOIN t3 ON t3.d=t1.id
 WHERE t1.id=2;
 id	a	b	c	d	e
@@ -3608,7 +3608,7 @@ CREATE TABLE t1(id int PRIMARY KEY, b int, e int);
 CREATE TABLE t2(i int, a int, INDEX si(i), INDEX ai(a));
 CREATE TABLE t3(a int PRIMARY KEY, c char(4), INDEX ci(c));
 INSERT INTO t1 VALUES 
-(1,10,19), (2,20,22), (4,41,42), (9,93,95), (7, 77,79),
+(1,10,19), (2,20,22), (4,41,42), (9,39,95), (7, 77,79),
 (6,63,67), (5,55,58), (3,38,39), (8,81,89);
 INSERT INTO t2 VALUES
 (21,210), (41,410), (82,820), (83,830), (84,840),
@@ -3636,6 +3636,14 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	const	PRIMARY	PRIMARY	4	const	1	
 1	SIMPLE	t2	range	si,ai	si	5	NULL	4	Using index condition; Using where; Rowid-ordered scan
 1	SIMPLE	t3	eq_ref|filter	PRIMARY,ci	PRIMARY|ci	4|5	test.t2.a	1 (30%)	Using where; Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan; Using rowid filter
+EXPLAIN
+SELECT t3.a FROM t1,t2 FORCE INDEX (si),t3
+WHERE t1.id = 9 AND t2.i BETWEEN t1.b AND t1.e AND 
+t3.a=t2.a AND t3.c IN ('bb','ee');
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	const	PRIMARY	PRIMARY	4	const	1	
+1	SIMPLE	t3	range	PRIMARY,ci	ci	5	NULL	6	Using index condition; Rowid-ordered scan
+1	SIMPLE	t2	hash_range	si	#hash#$hj:si	5:5	test.t3.a	13	Using where; Rowid-ordered scan; Using join buffer (flat, BNLH join)
 EXPLAIN 
 SELECT t3.a FROM t1,t2 FORCE INDEX (si),t3
 WHERE t1.id = 8 AND (t2.i=t1.b OR t2.i=t1.e) AND t3.a=t2.a AND
@@ -3728,7 +3736,7 @@ COUNT(*)
 EXPLAIN SELECT * FROM t1
 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null=3 ;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	idx1,idx2	idx2	4	const	2	Using where
+1	SIMPLE	t1	index_merge	idx1,idx2	idx2,idx1	4,10	NULL	1	Using intersect(idx2,idx1); Using where; Using index
 EXPLAIN SELECT * FROM t1
 WHERE ID_better=1 AND ID1_with_null=3 AND ID2_with_null=3 IS NULL ;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
@@ -3742,7 +3750,7 @@ CREATE UNIQUE INDEX idx1 ON t1(ID1_with_null,ID2_with_null);
 EXPLAIN SELECT * FROM t1
 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null=3 ;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	idx1,idx2	idx2	4	const	2	Using where
+1	SIMPLE	t1	index_merge	idx1,idx2	idx2,idx1	4,10	NULL	1	Using intersect(idx2,idx1); Using where; Using index
 EXPLAIN SELECT * FROM t1
 WHERE ID_better=1 AND ID1_with_null=3 AND ID2_with_null IS NULL ;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
@@ -3755,7 +3763,7 @@ EXPLAIN SELECT * FROM t1
 WHERE ID_better=1 AND ID1_with_null IS NULL AND 
 (ID2_with_null=1 OR ID2_with_null=2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	idx1,idx2	idx2	4	const	2	Using where
+1	SIMPLE	t1	ref|filter	idx1,idx2	idx1|idx2	5|4	const	2 (1%)	Using index condition; Using where; Using rowid filter
 DROP TABLE t1;
 CREATE TABLE t1 (a INT, ts TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, KEY ts(ts));
 INSERT INTO t1 VALUES (30,"2006-01-03 23:00:00"), (31,"2006-01-03 23:00:00");
@@ -3776,7 +3784,7 @@ AND t1.ts BETWEEN t2.dt1 AND t2.dt2
 AND t1.ts BETWEEN "2006-01-01" AND "2006-12-31";
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	const	PRIMARY	PRIMARY	4	const	1	
-1	SIMPLE	t1	range	ts	ts	4	NULL	2	Using index condition; Using where; Rowid-ordered scan
+1	SIMPLE	t1	ALL	ts	NULL	NULL	NULL	2	Using where
 SELECT * FROM t1 LEFT JOIN t2 ON (t1.a=t2.a) WHERE t1.a=30
 AND t1.ts BETWEEN t2.dt1 AND t2.dt2
 AND t1.ts BETWEEN "2006-01-01" AND "2006-12-31";
@@ -4042,7 +4050,7 @@ EXPLAIN SELECT COUNT(*) FROM t1 f1 INNER JOIN t1 f2
 ON ( f1.b=f2.b AND f1.a<f2.a ) 
 WHERE 1 AND f1.b NOT IN (100,2232,3343,51111);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	f1	range	inx	inx	5	NULL	7	Using where; Using index
+1	SIMPLE	f1	index	inx	inx	10	NULL	7	Using where; Using index
 1	SIMPLE	f2	ref	inx	inx	5	test.f1.b	1	Using where; Using index
 DROP TABLE t1;
 CREATE TABLE t1 (c1 INT, c2 INT);
diff --git a/mysql-test/main/select_pkeycache.result b/mysql-test/main/select_pkeycache.result
index 2b545fe5e94..675601df08c 100644
--- a/mysql-test/main/select_pkeycache.result
+++ b/mysql-test/main/select_pkeycache.result
@@ -3540,7 +3540,7 @@ WHERE t1.id=2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	const	PRIMARY	PRIMARY	4	const	1	
 1	SIMPLE	t2	const	idx1	NULL	NULL	NULL	1	
-1	SIMPLE	t3	ref	idx1	idx1	5	const	4	
+1	SIMPLE	t3	ALL	idx1	NULL	NULL	NULL	9	Using where
 SELECT * FROM t1 LEFT JOIN t2 ON t2.b=t1.a INNER JOIN t3 ON t3.d=t1.id
 WHERE t1.id=2;
 id	a	b	c	d	e
@@ -3597,7 +3597,7 @@ CREATE TABLE t1(id int PRIMARY KEY, b int, e int);
 CREATE TABLE t2(i int, a int, INDEX si(i), INDEX ai(a));
 CREATE TABLE t3(a int PRIMARY KEY, c char(4), INDEX ci(c));
 INSERT INTO t1 VALUES 
-(1,10,19), (2,20,22), (4,41,42), (9,93,95), (7, 77,79),
+(1,10,19), (2,20,22), (4,41,42), (9,39,95), (7, 77,79),
 (6,63,67), (5,55,58), (3,38,39), (8,81,89);
 INSERT INTO t2 VALUES
 (21,210), (41,410), (82,820), (83,830), (84,840),
@@ -3625,6 +3625,14 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	const	PRIMARY	PRIMARY	4	const	1	
 1	SIMPLE	t2	range	si,ai	si	5	NULL	4	Using index condition; Using where
 1	SIMPLE	t3	eq_ref|filter	PRIMARY,ci	PRIMARY|ci	4|5	test.t2.a	1 (30%)	Using where; Using rowid filter
+EXPLAIN
+SELECT t3.a FROM t1,t2 FORCE INDEX (si),t3
+WHERE t1.id = 9 AND t2.i BETWEEN t1.b AND t1.e AND 
+t3.a=t2.a AND t3.c IN ('bb','ee');
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	t1	const	PRIMARY	PRIMARY	4	const	1	
+1	SIMPLE	t2	range	si	si	5	NULL	13	Using index condition; Using where
+1	SIMPLE	t3	eq_ref|filter	PRIMARY,ci	PRIMARY|ci	4|5	test.t2.a	1 (30%)	Using where; Using rowid filter
 EXPLAIN 
 SELECT t3.a FROM t1,t2 FORCE INDEX (si),t3
 WHERE t1.id = 8 AND (t2.i=t1.b OR t2.i=t1.e) AND t3.a=t2.a AND
@@ -3717,7 +3725,7 @@ COUNT(*)
 EXPLAIN SELECT * FROM t1
 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null=3 ;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	idx1,idx2	idx2	4	const	2	Using where
+1	SIMPLE	t1	index_merge	idx1,idx2	idx2,idx1	4,10	NULL	1	Using intersect(idx2,idx1); Using where; Using index
 EXPLAIN SELECT * FROM t1
 WHERE ID_better=1 AND ID1_with_null=3 AND ID2_with_null=3 IS NULL ;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
@@ -3731,7 +3739,7 @@ CREATE UNIQUE INDEX idx1 ON t1(ID1_with_null,ID2_with_null);
 EXPLAIN SELECT * FROM t1
 WHERE ID_better=1 AND ID1_with_null IS NULL AND ID2_with_null=3 ;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	idx1,idx2	idx2	4	const	2	Using where
+1	SIMPLE	t1	index_merge	idx1,idx2	idx2,idx1	4,10	NULL	1	Using intersect(idx2,idx1); Using where; Using index
 EXPLAIN SELECT * FROM t1
 WHERE ID_better=1 AND ID1_with_null=3 AND ID2_with_null IS NULL ;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
@@ -3744,7 +3752,7 @@ EXPLAIN SELECT * FROM t1
 WHERE ID_better=1 AND ID1_with_null IS NULL AND 
 (ID2_with_null=1 OR ID2_with_null=2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	idx1,idx2	idx2	4	const	2	Using where
+1	SIMPLE	t1	ref|filter	idx1,idx2	idx1|idx2	5|4	const	2 (1%)	Using index condition; Using where; Using rowid filter
 DROP TABLE t1;
 CREATE TABLE t1 (a INT, ts TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, KEY ts(ts));
 INSERT INTO t1 VALUES (30,"2006-01-03 23:00:00"), (31,"2006-01-03 23:00:00");
@@ -3765,7 +3773,7 @@ AND t1.ts BETWEEN t2.dt1 AND t2.dt2
 AND t1.ts BETWEEN "2006-01-01" AND "2006-12-31";
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t2	const	PRIMARY	PRIMARY	4	const	1	
-1	SIMPLE	t1	range	ts	ts	4	NULL	2	Using index condition; Using where
+1	SIMPLE	t1	ALL	ts	NULL	NULL	NULL	2	Using where
 SELECT * FROM t1 LEFT JOIN t2 ON (t1.a=t2.a) WHERE t1.a=30
 AND t1.ts BETWEEN t2.dt1 AND t2.dt2
 AND t1.ts BETWEEN "2006-01-01" AND "2006-12-31";
@@ -4031,7 +4039,7 @@ EXPLAIN SELECT COUNT(*) FROM t1 f1 INNER JOIN t1 f2
 ON ( f1.b=f2.b AND f1.a<f2.a ) 
 WHERE 1 AND f1.b NOT IN (100,2232,3343,51111);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	f1	range	inx	inx	5	NULL	7	Using where; Using index
+1	SIMPLE	f1	index	inx	inx	10	NULL	7	Using where; Using index
 1	SIMPLE	f2	ref	inx	inx	5	test.f1.b	1	Using where; Using index
 DROP TABLE t1;
 CREATE TABLE t1 (c1 INT, c2 INT);
diff --git a/mysql-test/main/select_safe.result b/mysql-test/main/select_safe.result
index 649e2dc484e..90ed1a4e785 100644
--- a/mysql-test/main/select_safe.result
+++ b/mysql-test/main/select_safe.result
@@ -74,8 +74,8 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 set MAX_SEEKS_FOR_KEY=1;
 explain select STRAIGHT_JOIN * from t1,t1 as t2 where t1.b=t2.b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ALL	b	NULL	NULL	NULL	11	
-1	SIMPLE	t2	ALL	b	NULL	NULL	NULL	11	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t1	ALL	b	NULL	NULL	NULL	11	Using where
+1	SIMPLE	t2	ref	b	b	21	test.t1.b	5	
 SET MAX_SEEKS_FOR_KEY=DEFAULT;
 drop table t1;
 create table t1 (a int);
diff --git a/mysql-test/main/selectivity.result b/mysql-test/main/selectivity.result
index 71fce3475bc..060588c1a2c 100644
--- a/mysql-test/main/selectivity.result
+++ b/mysql-test/main/selectivity.result
@@ -541,8 +541,8 @@ limit 10;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	nation	ALL	PRIMARY	NULL	NULL	NULL	25	4.00	Using where; Using temporary; Using filesort
 1	PRIMARY	supplier	ref	PRIMARY,i_s_nationkey	i_s_nationkey	5	dbt3_s001.nation.n_nationkey	1	100.00	
-1	PRIMARY	part	ALL	PRIMARY	NULL	NULL	NULL	200	4.17	Using where; Start temporary; Using join buffer (flat, BNL join)
-1	PRIMARY	partsupp	eq_ref	PRIMARY,i_ps_partkey,i_ps_suppkey	PRIMARY	8	dbt3_s001.part.p_partkey,dbt3_s001.supplier.s_suppkey	1	100.00	Using where; End temporary
+1	PRIMARY	part	ALL	PRIMARY	NULL	NULL	NULL	200	4.17	Using where
+1	PRIMARY	partsupp	eq_ref	PRIMARY,i_ps_partkey,i_ps_suppkey	PRIMARY	8	dbt3_s001.part.p_partkey,dbt3_s001.supplier.s_suppkey	1	100.00	Using where; FirstMatch(supplier)
 4	DEPENDENT SUBQUERY	lineitem	ref	i_l_shipdate,i_l_suppkey_partkey,i_l_partkey,i_l_suppkey	i_l_suppkey_partkey	10	dbt3_s001.partsupp.ps_partkey,dbt3_s001.partsupp.ps_suppkey	8	15.14	Using where
 Warnings:
 Note	1276	Field or reference 'dbt3_s001.partsupp.ps_partkey' of SELECT #4 was resolved in SELECT #2
@@ -1790,7 +1790,7 @@ set optimizer_use_condition_selectivity=2;
 explain extended select t1.b,t2.a,t3.a,t3.b from t1,t2,t3
 where t1.c = t2.a AND t1.d = t3.a and t1.a = 50 and t1.b <= 100;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	range	a	a	10	NULL	9	9.00	Using index condition; Using where
+1	SIMPLE	t1	range	a	a	10	NULL	9	100.00	Using index condition; Using where
 1	SIMPLE	t2	eq_ref	PRIMARY	PRIMARY	4	test.t1.c	1	100.00	Using index
 1	SIMPLE	t3	eq_ref	PRIMARY	PRIMARY	4	test.t1.d	1	100.00	
 Warnings:
diff --git a/mysql-test/main/selectivity_innodb.result b/mysql-test/main/selectivity_innodb.result
index ab79d15c9a1..f8c14a14dbf 100644
--- a/mysql-test/main/selectivity_innodb.result
+++ b/mysql-test/main/selectivity_innodb.result
@@ -82,10 +82,10 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	partsupp	ref	PRIMARY,i_ps_partkey,i_ps_suppkey	PRIMARY	4	dbt3_s001.part.p_partkey	3	100.00	Using where
 1	PRIMARY	supplier	eq_ref	PRIMARY,i_s_nationkey	PRIMARY	4	dbt3_s001.partsupp.ps_suppkey	1	100.00	Using where
 1	PRIMARY	nation	eq_ref	PRIMARY,i_n_regionkey	PRIMARY	4	dbt3_s001.supplier.s_nationkey	1	100.00	Using where
-2	DEPENDENT SUBQUERY	region	ALL	PRIMARY	NULL	NULL	NULL	5	20.00	Using where
 2	DEPENDENT SUBQUERY	partsupp	ref	PRIMARY,i_ps_partkey,i_ps_suppkey	PRIMARY	4	dbt3_s001.part.p_partkey	3	100.00	
 2	DEPENDENT SUBQUERY	supplier	eq_ref	PRIMARY,i_s_nationkey	PRIMARY	4	dbt3_s001.partsupp.ps_suppkey	1	100.00	Using where
 2	DEPENDENT SUBQUERY	nation	eq_ref	PRIMARY,i_n_regionkey	PRIMARY	4	dbt3_s001.supplier.s_nationkey	1	100.00	Using where
+2	DEPENDENT SUBQUERY	region	eq_ref	PRIMARY	PRIMARY	4	dbt3_s001.nation.n_regionkey	1	20.00	Using where
 Warnings:
 Note	1276	Field or reference 'dbt3_s001.part.p_partkey' of SELECT #2 was resolved in SELECT #1
 Note	1003	/* select#1 */ select `dbt3_s001`.`supplier`.`s_acctbal` AS `s_acctbal`,`dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`nation`.`n_name` AS `n_name`,`dbt3_s001`.`part`.`p_partkey` AS `p_partkey`,`dbt3_s001`.`part`.`p_mfgr` AS `p_mfgr`,`dbt3_s001`.`supplier`.`s_address` AS `s_address`,`dbt3_s001`.`supplier`.`s_phone` AS `s_phone`,`dbt3_s001`.`supplier`.`s_comment` AS `s_comment` from `dbt3_s001`.`part` join `dbt3_s001`.`supplier` join `dbt3_s001`.`partsupp` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`supplier`.`s_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`nation`.`n_regionkey` = `dbt3_s001`.`region`.`r_regionkey` and `dbt3_s001`.`region`.`r_name` = 'ASIA' and (`dbt3_s001`.`part`.`p_size` = 9 or `dbt3_s001`.`part`.`p_size` = 19999) and `dbt3_s001`.`part`.`p_type` like '%TIN' and `dbt3_s001`.`partsupp`.`ps_supplycost` = <expr_cache><`dbt3_s001`.`part`.`p_partkey`>((/* select#2 */ select min(`dbt3_s001`.`partsupp`.`ps_supplycost`) from `dbt3_s001`.`partsupp` join `dbt3_s001`.`supplier` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`supplier`.`s_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`nation`.`n_regionkey` = `dbt3_s001`.`region`.`r_regionkey` and `dbt3_s001`.`region`.`r_name` = 'ASIA' and `dbt3_s001`.`part`.`p_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey`)) order by `dbt3_s001`.`supplier`.`s_acctbal` desc,`dbt3_s001`.`nation`.`n_name`,`dbt3_s001`.`supplier`.`s_name`,`dbt3_s001`.`part`.`p_partkey`
@@ -123,13 +123,13 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	partsupp	ref	PRIMARY,i_ps_partkey,i_ps_suppkey	PRIMARY	4	dbt3_s001.part.p_partkey	3	100.00	Using where
 1	PRIMARY	supplier	eq_ref	PRIMARY,i_s_nationkey	PRIMARY	4	dbt3_s001.partsupp.ps_suppkey	1	100.00	Using where
 1	PRIMARY	nation	eq_ref	PRIMARY,i_n_regionkey	PRIMARY	4	dbt3_s001.supplier.s_nationkey	1	100.00	Using where
-2	DEPENDENT SUBQUERY	region	ALL	PRIMARY	NULL	NULL	NULL	5	20.00	Using where
 2	DEPENDENT SUBQUERY	partsupp	ref	PRIMARY,i_ps_partkey,i_ps_suppkey	PRIMARY	4	dbt3_s001.part.p_partkey	3	100.00	
 2	DEPENDENT SUBQUERY	supplier	eq_ref	PRIMARY,i_s_nationkey	PRIMARY	4	dbt3_s001.partsupp.ps_suppkey	1	100.00	Using where
 2	DEPENDENT SUBQUERY	nation	eq_ref	PRIMARY,i_n_regionkey	PRIMARY	4	dbt3_s001.supplier.s_nationkey	1	100.00	Using where
+2	DEPENDENT SUBQUERY	region	eq_ref	PRIMARY	PRIMARY	4	dbt3_s001.nation.n_regionkey	1	20.00	Using where
 Warnings:
 Note	1276	Field or reference 'dbt3_s001.part.p_partkey' of SELECT #2 was resolved in SELECT #1
-Note	1003	/* select#1 */ select `dbt3_s001`.`supplier`.`s_acctbal` AS `s_acctbal`,`dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`nation`.`n_name` AS `n_name`,`dbt3_s001`.`part`.`p_partkey` AS `p_partkey`,`dbt3_s001`.`part`.`p_mfgr` AS `p_mfgr`,`dbt3_s001`.`supplier`.`s_address` AS `s_address`,`dbt3_s001`.`supplier`.`s_phone` AS `s_phone`,`dbt3_s001`.`supplier`.`s_comment` AS `s_comment` from `dbt3_s001`.`part` join `dbt3_s001`.`supplier` join `dbt3_s001`.`partsupp` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`supplier`.`s_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`part`.`p_size` = 9 and `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`nation`.`n_regionkey` = `dbt3_s001`.`region`.`r_regionkey` and `dbt3_s001`.`region`.`r_name` = 'ASIA' and `dbt3_s001`.`part`.`p_type` like '%TIN' and `dbt3_s001`.`partsupp`.`ps_supplycost` = <expr_cache><`dbt3_s001`.`part`.`p_partkey`>((/* select#2 */ select min(`dbt3_s001`.`partsupp`.`ps_supplycost`) from `dbt3_s001`.`partsupp` join `dbt3_s001`.`supplier` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`supplier`.`s_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`nation`.`n_regionkey` = `dbt3_s001`.`region`.`r_regionkey` and `dbt3_s001`.`region`.`r_name` = 'ASIA' and `dbt3_s001`.`part`.`p_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey`)) order by `dbt3_s001`.`supplier`.`s_acctbal` desc,`dbt3_s001`.`nation`.`n_name`,`dbt3_s001`.`supplier`.`s_name`,`dbt3_s001`.`part`.`p_partkey`
+Note	1003	/* select#1 */ select `dbt3_s001`.`supplier`.`s_acctbal` AS `s_acctbal`,`dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`nation`.`n_name` AS `n_name`,`dbt3_s001`.`part`.`p_partkey` AS `p_partkey`,`dbt3_s001`.`part`.`p_mfgr` AS `p_mfgr`,`dbt3_s001`.`supplier`.`s_address` AS `s_address`,`dbt3_s001`.`supplier`.`s_phone` AS `s_phone`,`dbt3_s001`.`supplier`.`s_comment` AS `s_comment` from `dbt3_s001`.`part` join `dbt3_s001`.`supplier` join `dbt3_s001`.`partsupp` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`supplier`.`s_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`part`.`p_size` = 9 and `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`nation`.`n_regionkey` = `dbt3_s001`.`region`.`r_regionkey` and `dbt3_s001`.`region`.`r_name` = 'ASIA' and `dbt3_s001`.`part`.`p_type` like '%TIN' and `dbt3_s001`.`partsupp`.`ps_supplycost` = <expr_cache><`dbt3_s001`.`part`.`p_partkey`>((/* select#2 */ select min(`dbt3_s001`.`partsupp`.`ps_supplycost`) from `dbt3_s001`.`partsupp` join `dbt3_s001`.`supplier` join `dbt3_s001`.`nation` join `dbt3_s001`.`region` where `dbt3_s001`.`supplier`.`s_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`region`.`r_regionkey` = `dbt3_s001`.`nation`.`n_regionkey` and `dbt3_s001`.`region`.`r_name` = 'ASIA' and `dbt3_s001`.`part`.`p_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey`)) order by `dbt3_s001`.`supplier`.`s_acctbal` desc,`dbt3_s001`.`nation`.`n_name`,`dbt3_s001`.`supplier`.`s_name`,`dbt3_s001`.`part`.`p_partkey`
 === Q15 ===
 create view revenue0 (supplier_no, total_revenue) as
 select l_suppkey, sum(l_extendedprice * (1 - l_discount))
@@ -171,7 +171,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	supplier	index	PRIMARY	PRIMARY	4	NULL	10	100.00	
 1	PRIMARY	<derived3>	ref	key0	key0	5	dbt3_s001.supplier.s_suppkey	10	100.00	Using where
 3	DERIVED	lineitem	range	i_l_shipdate,i_l_suppkey	i_l_shipdate	4	NULL	229	100.00	Using where; Using temporary; Using filesort
-2	SUBQUERY	<derived4>	ALL	NULL	NULL	NULL	NULL	228	100.00	
+2	SUBQUERY	<derived4>	ALL	NULL	NULL	NULL	NULL	229	100.00	
 4	DERIVED	lineitem	range	i_l_shipdate	i_l_shipdate	4	NULL	229	100.00	Using where; Using temporary; Using filesort
 Warnings:
 Note	1003	/* select#1 */ select `dbt3_s001`.`supplier`.`s_suppkey` AS `s_suppkey`,`dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address`,`dbt3_s001`.`supplier`.`s_phone` AS `s_phone`,`revenue0`.`total_revenue` AS `total_revenue` from `dbt3_s001`.`supplier` join `dbt3_s001`.`revenue0` where `revenue0`.`supplier_no` = `dbt3_s001`.`supplier`.`s_suppkey` and `revenue0`.`total_revenue` = (/* select#2 */ select max(`revenue0`.`total_revenue`) from `dbt3_s001`.`revenue0`) order by `dbt3_s001`.`supplier`.`s_suppkey`
@@ -544,16 +544,15 @@ and n_name = 'UNITED STATES'
 order by s_name
 limit 10;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	nation	ALL	PRIMARY	NULL	NULL	NULL	25	4.00	Using where; Using temporary; Using filesort
-1	PRIMARY	supplier	ref	PRIMARY,i_s_nationkey	i_s_nationkey	5	dbt3_s001.nation.n_nationkey	1	100.00	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-2	MATERIALIZED	part	ALL	PRIMARY	NULL	NULL	NULL	200	4.17	Using where
-2	MATERIALIZED	partsupp	ref	PRIMARY,i_ps_partkey,i_ps_suppkey	PRIMARY	4	dbt3_s001.part.p_partkey	3	100.00	Using where
+1	PRIMARY	supplier	ALL	PRIMARY,i_s_nationkey	NULL	NULL	NULL	10	100.00	Using where; Using filesort
+1	PRIMARY	nation	eq_ref	PRIMARY	PRIMARY	4	dbt3_s001.supplier.s_nationkey	1	4.00	Using where
+1	PRIMARY	partsupp	ref	PRIMARY,i_ps_partkey,i_ps_suppkey	i_ps_suppkey	4	dbt3_s001.supplier.s_suppkey	70	100.00	Using where
+1	PRIMARY	part	eq_ref	PRIMARY	PRIMARY	4	dbt3_s001.partsupp.ps_partkey	1	4.17	Using where; FirstMatch(nation)
 4	DEPENDENT SUBQUERY	lineitem	ref	i_l_shipdate,i_l_suppkey_partkey,i_l_partkey,i_l_suppkey	i_l_suppkey_partkey	10	dbt3_s001.partsupp.ps_partkey,dbt3_s001.partsupp.ps_suppkey	8	14.40	Using where
 Warnings:
 Note	1276	Field or reference 'dbt3_s001.partsupp.ps_partkey' of SELECT #4 was resolved in SELECT #2
 Note	1276	Field or reference 'dbt3_s001.partsupp.ps_suppkey' of SELECT #4 was resolved in SELECT #2
-Note	1003	/* select#1 */ select sql_calc_found_rows `dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address` from `dbt3_s001`.`supplier` semi join (`dbt3_s001`.`part` join `dbt3_s001`.`partsupp`) join `dbt3_s001`.`nation` where `dbt3_s001`.`supplier`.`s_nationkey` = `dbt3_s001`.`nation`.`n_nationkey` and `dbt3_s001`.`nation`.`n_name` = 'UNITED STATES' and `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`partsupp`.`ps_availqty` > <expr_cache><`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((/* select#4 */ select 0.5 * sum(`dbt3_s001`.`lineitem`.`l_quantity`) from `dbt3_s001`.`lineitem` where `dbt3_s001`.`lineitem`.`l_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`lineitem`.`l_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`lineitem`.`l_shipDATE` >= <cache>(cast('1993-01-01' as date)) and `dbt3_s001`.`lineitem`.`l_shipDATE` < <cache>(cast('1993-01-01' as date) + interval '1' year))) and `dbt3_s001`.`part`.`p_name` like 'g%' order by `dbt3_s001`.`supplier`.`s_name` limit 10
+Note	1003	/* select#1 */ select sql_calc_found_rows `dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address` from `dbt3_s001`.`supplier` semi join (`dbt3_s001`.`part` join `dbt3_s001`.`partsupp`) join `dbt3_s001`.`nation` where `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`nation`.`n_name` = 'UNITED STATES' and `dbt3_s001`.`part`.`p_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`partsupp`.`ps_suppkey` = `dbt3_s001`.`supplier`.`s_suppkey` and `dbt3_s001`.`partsupp`.`ps_availqty` > <expr_cache><`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((/* select#4 */ select 0.5 * sum(`dbt3_s001`.`lineitem`.`l_quantity`) from `dbt3_s001`.`lineitem` where `dbt3_s001`.`lineitem`.`l_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`lineitem`.`l_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`lineitem`.`l_shipDATE` >= <cache>(cast('1993-01-01' as date)) and `dbt3_s001`.`lineitem`.`l_shipDATE` < <cache>(cast('1993-01-01' as date) + interval '1' year))) and `dbt3_s001`.`part`.`p_name` like 'g%' order by `dbt3_s001`.`supplier`.`s_name` limit 10
 select sql_calc_found_rows
 s_name, s_address
 from supplier, nation
@@ -600,16 +599,15 @@ and n_name = 'UNITED STATES'
 order by s_name
 limit 10;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	nation	ALL	PRIMARY	NULL	NULL	NULL	25	4.00	Using where; Using temporary; Using filesort
-1	PRIMARY	supplier	ref	PRIMARY,i_s_nationkey	i_s_nationkey	5	dbt3_s001.nation.n_nationkey	1	100.00	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-2	MATERIALIZED	part	ALL	PRIMARY	NULL	NULL	NULL	200	7.03	Using where
-2	MATERIALIZED	partsupp	ref	PRIMARY,i_ps_partkey,i_ps_suppkey	PRIMARY	4	dbt3_s001.part.p_partkey	3	100.00	Using where
+1	PRIMARY	supplier	ALL	PRIMARY,i_s_nationkey	NULL	NULL	NULL	10	100.00	Using where; Using filesort
+1	PRIMARY	nation	eq_ref	PRIMARY	PRIMARY	4	dbt3_s001.supplier.s_nationkey	1	4.00	Using where
+1	PRIMARY	partsupp	ref	PRIMARY,i_ps_partkey,i_ps_suppkey	i_ps_suppkey	4	dbt3_s001.supplier.s_suppkey	70	100.00	Using where
+1	PRIMARY	part	eq_ref	PRIMARY	PRIMARY	4	dbt3_s001.partsupp.ps_partkey	1	7.03	Using where; FirstMatch(nation)
 4	DEPENDENT SUBQUERY	lineitem	ref	i_l_shipdate,i_l_suppkey_partkey,i_l_partkey,i_l_suppkey	i_l_suppkey_partkey	10	dbt3_s001.partsupp.ps_partkey,dbt3_s001.partsupp.ps_suppkey	8	14.40	Using where
 Warnings:
 Note	1276	Field or reference 'dbt3_s001.partsupp.ps_partkey' of SELECT #4 was resolved in SELECT #2
 Note	1276	Field or reference 'dbt3_s001.partsupp.ps_suppkey' of SELECT #4 was resolved in SELECT #2
-Note	1003	/* select#1 */ select sql_calc_found_rows `dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address` from `dbt3_s001`.`supplier` semi join (`dbt3_s001`.`part` join `dbt3_s001`.`partsupp`) join `dbt3_s001`.`nation` where `dbt3_s001`.`supplier`.`s_nationkey` = `dbt3_s001`.`nation`.`n_nationkey` and `dbt3_s001`.`nation`.`n_name` = 'UNITED STATES' and `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`partsupp`.`ps_availqty` > <expr_cache><`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((/* select#4 */ select 0.5 * sum(`dbt3_s001`.`lineitem`.`l_quantity`) from `dbt3_s001`.`lineitem` where `dbt3_s001`.`lineitem`.`l_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`lineitem`.`l_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`lineitem`.`l_shipDATE` >= <cache>(cast('1993-01-01' as date)) and `dbt3_s001`.`lineitem`.`l_shipDATE` < <cache>(cast('1993-01-01' as date) + interval '1' year))) and `dbt3_s001`.`part`.`p_name` like 'g%' order by `dbt3_s001`.`supplier`.`s_name` limit 10
+Note	1003	/* select#1 */ select sql_calc_found_rows `dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address` from `dbt3_s001`.`supplier` semi join (`dbt3_s001`.`part` join `dbt3_s001`.`partsupp`) join `dbt3_s001`.`nation` where `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`nation`.`n_name` = 'UNITED STATES' and `dbt3_s001`.`part`.`p_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`partsupp`.`ps_suppkey` = `dbt3_s001`.`supplier`.`s_suppkey` and `dbt3_s001`.`partsupp`.`ps_availqty` > <expr_cache><`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((/* select#4 */ select 0.5 * sum(`dbt3_s001`.`lineitem`.`l_quantity`) from `dbt3_s001`.`lineitem` where `dbt3_s001`.`lineitem`.`l_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`lineitem`.`l_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`lineitem`.`l_shipDATE` >= <cache>(cast('1993-01-01' as date)) and `dbt3_s001`.`lineitem`.`l_shipDATE` < <cache>(cast('1993-01-01' as date) + interval '1' year))) and `dbt3_s001`.`part`.`p_name` like 'g%' order by `dbt3_s001`.`supplier`.`s_name` limit 10
 select sql_calc_found_rows
 s_name, s_address
 from supplier, nation
@@ -656,16 +654,15 @@ and n_name = 'UNITED STATES'
 order by s_name
 limit 10;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	nation	ALL	PRIMARY	NULL	NULL	NULL	25	4.00	Using where; Using temporary; Using filesort
-1	PRIMARY	supplier	ref	PRIMARY,i_s_nationkey	i_s_nationkey	5	dbt3_s001.nation.n_nationkey	1	100.00	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-2	MATERIALIZED	part	ALL	PRIMARY	NULL	NULL	NULL	200	7.81	Using where
-2	MATERIALIZED	partsupp	ref	PRIMARY,i_ps_partkey,i_ps_suppkey	PRIMARY	4	dbt3_s001.part.p_partkey	3	100.00	Using where
+1	PRIMARY	supplier	ALL	PRIMARY,i_s_nationkey	NULL	NULL	NULL	10	100.00	Using where; Using filesort
+1	PRIMARY	nation	eq_ref	PRIMARY	PRIMARY	4	dbt3_s001.supplier.s_nationkey	1	4.00	Using where
+1	PRIMARY	partsupp	ref	PRIMARY,i_ps_partkey,i_ps_suppkey	i_ps_suppkey	4	dbt3_s001.supplier.s_suppkey	70	100.00	Using where
+1	PRIMARY	part	eq_ref	PRIMARY	PRIMARY	4	dbt3_s001.partsupp.ps_partkey	1	7.81	Using where; FirstMatch(nation)
 4	DEPENDENT SUBQUERY	lineitem	ref	i_l_shipdate,i_l_suppkey_partkey,i_l_partkey,i_l_suppkey	i_l_suppkey_partkey	10	dbt3_s001.partsupp.ps_partkey,dbt3_s001.partsupp.ps_suppkey	8	14.40	Using where
 Warnings:
 Note	1276	Field or reference 'dbt3_s001.partsupp.ps_partkey' of SELECT #4 was resolved in SELECT #2
 Note	1276	Field or reference 'dbt3_s001.partsupp.ps_suppkey' of SELECT #4 was resolved in SELECT #2
-Note	1003	/* select#1 */ select sql_calc_found_rows `dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address` from `dbt3_s001`.`supplier` semi join (`dbt3_s001`.`part` join `dbt3_s001`.`partsupp`) join `dbt3_s001`.`nation` where `dbt3_s001`.`supplier`.`s_nationkey` = `dbt3_s001`.`nation`.`n_nationkey` and `dbt3_s001`.`nation`.`n_name` = 'UNITED STATES' and `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`partsupp`.`ps_availqty` > <expr_cache><`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((/* select#4 */ select 0.5 * sum(`dbt3_s001`.`lineitem`.`l_quantity`) from `dbt3_s001`.`lineitem` where `dbt3_s001`.`lineitem`.`l_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`lineitem`.`l_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`lineitem`.`l_shipDATE` >= <cache>(cast('1993-01-01' as date)) and `dbt3_s001`.`lineitem`.`l_shipDATE` < <cache>(cast('1993-01-01' as date) + interval '1' year))) and `dbt3_s001`.`part`.`p_name` like 'g%' order by `dbt3_s001`.`supplier`.`s_name` limit 10
+Note	1003	/* select#1 */ select sql_calc_found_rows `dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address` from `dbt3_s001`.`supplier` semi join (`dbt3_s001`.`part` join `dbt3_s001`.`partsupp`) join `dbt3_s001`.`nation` where `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`nation`.`n_name` = 'UNITED STATES' and `dbt3_s001`.`part`.`p_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`partsupp`.`ps_suppkey` = `dbt3_s001`.`supplier`.`s_suppkey` and `dbt3_s001`.`partsupp`.`ps_availqty` > <expr_cache><`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((/* select#4 */ select 0.5 * sum(`dbt3_s001`.`lineitem`.`l_quantity`) from `dbt3_s001`.`lineitem` where `dbt3_s001`.`lineitem`.`l_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`lineitem`.`l_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`lineitem`.`l_shipDATE` >= <cache>(cast('1993-01-01' as date)) and `dbt3_s001`.`lineitem`.`l_shipDATE` < <cache>(cast('1993-01-01' as date) + interval '1' year))) and `dbt3_s001`.`part`.`p_name` like 'g%' order by `dbt3_s001`.`supplier`.`s_name` limit 10
 select sql_calc_found_rows
 s_name, s_address
 from supplier, nation
@@ -712,16 +709,15 @@ and n_name = 'UNITED STATES'
 order by s_name
 limit 10;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	nation	ALL	PRIMARY	NULL	NULL	NULL	25	4.00	Using where; Using temporary; Using filesort
-1	PRIMARY	supplier	ref	PRIMARY,i_s_nationkey	i_s_nationkey	5	dbt3_s001.nation.n_nationkey	1	100.00	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-2	MATERIALIZED	part	ALL	PRIMARY	NULL	NULL	NULL	200	7.81	Using where
-2	MATERIALIZED	partsupp	ref	PRIMARY,i_ps_partkey,i_ps_suppkey	PRIMARY	4	dbt3_s001.part.p_partkey	3	100.00	Using where
+1	PRIMARY	supplier	ALL	PRIMARY,i_s_nationkey	NULL	NULL	NULL	10	100.00	Using where; Using filesort
+1	PRIMARY	nation	eq_ref	PRIMARY	PRIMARY	4	dbt3_s001.supplier.s_nationkey	1	4.00	Using where
+1	PRIMARY	partsupp	ref	PRIMARY,i_ps_partkey,i_ps_suppkey	i_ps_suppkey	4	dbt3_s001.supplier.s_suppkey	70	100.00	Using where
+1	PRIMARY	part	eq_ref	PRIMARY	PRIMARY	4	dbt3_s001.partsupp.ps_partkey	1	7.81	Using where; FirstMatch(nation)
 4	DEPENDENT SUBQUERY	lineitem	ref	i_l_shipdate,i_l_suppkey_partkey,i_l_partkey,i_l_suppkey	i_l_suppkey_partkey	10	dbt3_s001.partsupp.ps_partkey,dbt3_s001.partsupp.ps_suppkey	8	14.40	Using where
 Warnings:
 Note	1276	Field or reference 'dbt3_s001.partsupp.ps_partkey' of SELECT #4 was resolved in SELECT #2
 Note	1276	Field or reference 'dbt3_s001.partsupp.ps_suppkey' of SELECT #4 was resolved in SELECT #2
-Note	1003	/* select#1 */ select sql_calc_found_rows `dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address` from `dbt3_s001`.`supplier` semi join (`dbt3_s001`.`part` join `dbt3_s001`.`partsupp`) join `dbt3_s001`.`nation` where `dbt3_s001`.`supplier`.`s_nationkey` = `dbt3_s001`.`nation`.`n_nationkey` and `dbt3_s001`.`nation`.`n_name` = 'UNITED STATES' and `dbt3_s001`.`partsupp`.`ps_partkey` = `dbt3_s001`.`part`.`p_partkey` and `dbt3_s001`.`partsupp`.`ps_availqty` > <expr_cache><`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((/* select#4 */ select 0.5 * sum(`dbt3_s001`.`lineitem`.`l_quantity`) from `dbt3_s001`.`lineitem` where `dbt3_s001`.`lineitem`.`l_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`lineitem`.`l_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`lineitem`.`l_shipDATE` >= <cache>(cast('1993-01-01' as date)) and `dbt3_s001`.`lineitem`.`l_shipDATE` < <cache>(cast('1993-01-01' as date) + interval '1' year))) and `dbt3_s001`.`part`.`p_name` like 'g%' order by `dbt3_s001`.`supplier`.`s_name` limit 10
+Note	1003	/* select#1 */ select sql_calc_found_rows `dbt3_s001`.`supplier`.`s_name` AS `s_name`,`dbt3_s001`.`supplier`.`s_address` AS `s_address` from `dbt3_s001`.`supplier` semi join (`dbt3_s001`.`part` join `dbt3_s001`.`partsupp`) join `dbt3_s001`.`nation` where `dbt3_s001`.`nation`.`n_nationkey` = `dbt3_s001`.`supplier`.`s_nationkey` and `dbt3_s001`.`nation`.`n_name` = 'UNITED STATES' and `dbt3_s001`.`part`.`p_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`partsupp`.`ps_suppkey` = `dbt3_s001`.`supplier`.`s_suppkey` and `dbt3_s001`.`partsupp`.`ps_availqty` > <expr_cache><`dbt3_s001`.`partsupp`.`ps_partkey`,`dbt3_s001`.`partsupp`.`ps_suppkey`>((/* select#4 */ select 0.5 * sum(`dbt3_s001`.`lineitem`.`l_quantity`) from `dbt3_s001`.`lineitem` where `dbt3_s001`.`lineitem`.`l_partkey` = `dbt3_s001`.`partsupp`.`ps_partkey` and `dbt3_s001`.`lineitem`.`l_suppkey` = `dbt3_s001`.`partsupp`.`ps_suppkey` and `dbt3_s001`.`lineitem`.`l_shipDATE` >= <cache>(cast('1993-01-01' as date)) and `dbt3_s001`.`lineitem`.`l_shipDATE` < <cache>(cast('1993-01-01' as date) + interval '1' year))) and `dbt3_s001`.`part`.`p_name` like 'g%' order by `dbt3_s001`.`supplier`.`s_name` limit 10
 select sql_calc_found_rows
 s_name, s_address
 from supplier, nation
@@ -808,10 +804,9 @@ explain extended
 select * from t1 where a in ( select b from t2 ) AND ( a > 3 );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	1	100.00	Using where
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; FirstMatch(t1); Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where `test`.`t1`.`a` > 3
+Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where `test`.`t2`.`b` = `test`.`t1`.`a` and `test`.`t1`.`a` > 3
 select * from t1 where a in ( select b from t2 ) AND ( a > 3 );
 a
 drop table t1,t2;
@@ -1673,7 +1668,7 @@ Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1`
 # gives selectivity data
 explain extended select * from t1 where a in (17,51,5) and b=2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	ref|filter	b,a	b|a	5|5	const	24 (3%)	2.90	Using where; Using rowid filter
+1	SIMPLE	t1	ref|filter	b,a	b|a	5|5	const	59 (3%)	2.90	Using where; Using rowid filter
 Warnings:
 Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where `test`.`t1`.`b` = 2 and `test`.`t1`.`a` in (17,51,5)
 drop table t1;
diff --git a/mysql-test/main/selectivity_no_engine.result b/mysql-test/main/selectivity_no_engine.result
index 3811b12a1be..552a16d8334 100644
--- a/mysql-test/main/selectivity_no_engine.result
+++ b/mysql-test/main/selectivity_no_engine.result
@@ -236,8 +236,8 @@ set optimizer_use_condition_selectivity=2;
 explain
 select * from t1,t2 where t1.id = t2.t1_id and t2.f2='qux' and t2.f1='baz';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	ref	f1	f1	325	const,const	2	Using index condition; Using where
-1	SIMPLE	t1	eq_ref	PRIMARY	PRIMARY	122	test.t2.t1_id	1	
+1	SIMPLE	t2	ALL	f1	NULL	NULL	NULL	4	Using where
+1	SIMPLE	t1	ALL	PRIMARY	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
 select * from t1,t2 where t1.id = t2.t1_id and t2.f2='qux' and t2.f1='baz';
 id	dt	t1_id	f1	f2
 foo	2011-04-12 05:18:08	foo	baz	qux
diff --git a/mysql-test/main/show_explain.result b/mysql-test/main/show_explain.result
index 6bdc773aa4c..aa3be6f1f58 100644
--- a/mysql-test/main/show_explain.result
+++ b/mysql-test/main/show_explain.result
@@ -40,7 +40,7 @@ select count(*) from t1 where a < 100000;
 connection default;
 show explain for $thr2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	range	a	a	5	NULL	999	Using where; Using index
+1	SIMPLE	t1	index	a	a	5	NULL	1000	Using where; Using index
 Warnings:
 Note	1003	select count(*) from t1 where a < 100000
 connection con1;
@@ -730,8 +730,8 @@ SELECT * FROM t2 WHERE (5, 78) IN (SELECT `a1`, MAX(`a1`) FROM t2 GROUP BY `a1`)
 connection default;
 show explain for $thr2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	20	
 1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	8	const,const	1	
-1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	20	Using join buffer (flat, BNL join)
 2	MATERIALIZED	t2	index	NULL	a1	4	NULL	20	Using index
 Warnings:
 Note	1003	SELECT * FROM t2 WHERE (5, 78) IN (SELECT `a1`, MAX(`a1`) FROM t2 GROUP BY `a1`)
diff --git a/mysql-test/main/show_explain_json.result b/mysql-test/main/show_explain_json.result
index a5c441af5b8..daf8a3f5ef4 100644
--- a/mysql-test/main/show_explain_json.result
+++ b/mysql-test/main/show_explain_json.result
@@ -51,13 +51,13 @@ SHOW EXPLAIN
       {
         "table": {
           "table_name": "t1",
-          "access_type": "range",
+          "access_type": "index",
           "possible_keys": ["a"],
           "key": "a",
           "key_length": "5",
           "used_key_parts": ["a"],
-          "rows": 999,
-          "filtered": 100,
+          "rows": 1000,
+          "filtered": 99.90000153,
           "attached_condition": "t1.a < 100000",
           "using_index": true
         }
diff --git a/mysql-test/main/single_delete_update.result b/mysql-test/main/single_delete_update.result
index 1f0299ac0fc..6a17895ef8a 100644
--- a/mysql-test/main/single_delete_update.result
+++ b/mysql-test/main/single_delete_update.result
@@ -151,19 +151,19 @@ Variable_name	Value
 Sort_merge_passes	0
 Sort_priority_queue_sorts	0
 Sort_range	0
-Sort_rows	1
-Sort_scan	1
+Sort_rows	0
+Sort_scan	0
 SHOW STATUS LIKE 'Handler_read_%';
 Variable_name	Value
-Handler_read_first	0
+Handler_read_first	1
 Handler_read_key	0
 Handler_read_last	0
-Handler_read_next	0
+Handler_read_next	16
 Handler_read_prev	0
 Handler_read_retry	0
-Handler_read_rnd	1
+Handler_read_rnd	0
 Handler_read_rnd_deleted	0
-Handler_read_rnd_next	17
+Handler_read_rnd_next	0
 ## should be 5 (previous LIMIT)
 SELECT 1 - COUNT(*) FROM t2 WHERE b = 10;
 1 - COUNT(*)
@@ -332,6 +332,7 @@ DROP TABLE t2;
 #
 CREATE TABLE t2 (i INT, key1 INT, key2 INT, INDEX (key1), INDEX (key2));
 INSERT INTO t2 (key1, key2) SELECT i, i FROM t1;
+INSERT INTO t2 (key1, key2) SELECT i+100, i+100 FROM t1;
 FLUSH STATUS;
 SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
 i	key1	key2
@@ -754,21 +755,21 @@ UPDATE t2 SET d = 10 WHERE b = 10 ORDER BY a, c LIMIT 5;
 SHOW SESSION STATUS LIKE 'Sort%';
 Variable_name	Value
 Sort_merge_passes	0
-Sort_priority_queue_sorts	1
+Sort_priority_queue_sorts	0
 Sort_range	0
-Sort_rows	1
-Sort_scan	1
+Sort_rows	0
+Sort_scan	0
 SHOW STATUS LIKE 'Handler_read_%';
 Variable_name	Value
-Handler_read_first	0
+Handler_read_first	1
 Handler_read_key	0
 Handler_read_last	0
-Handler_read_next	0
+Handler_read_next	16
 Handler_read_prev	0
 Handler_read_retry	0
 Handler_read_rnd	1
 Handler_read_rnd_deleted	0
-Handler_read_rnd_next	17
+Handler_read_rnd_next	0
 ## should be 5 (previous LIMIT)
 SELECT COUNT(*) FROM t2 WHERE b = 10 AND d = 10 ORDER BY a, c;
 COUNT(*)
@@ -939,6 +940,7 @@ DROP TABLE t2;
 #
 CREATE TABLE t2 (i INT, key1 INT, key2 INT, INDEX (key1), INDEX (key2));
 INSERT INTO t2 (key1, key2) SELECT i, i FROM t1;
+INSERT INTO t2 (key1, key2) SELECT i+100, i+100 FROM t1;
 FLUSH STATUS;
 SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
 i	key1	key2
diff --git a/mysql-test/main/single_delete_update.test b/mysql-test/main/single_delete_update.test
index 4a4ad5e5a8e..05cff5e1413 100644
--- a/mysql-test/main/single_delete_update.test
+++ b/mysql-test/main/single_delete_update.test
@@ -147,6 +147,7 @@ DROP TABLE t2;
 
 CREATE TABLE t2 (i INT, key1 INT, key2 INT, INDEX (key1), INDEX (key2));
 INSERT INTO t2 (key1, key2) SELECT i, i FROM t1;
+INSERT INTO t2 (key1, key2) SELECT i+100, i+100 FROM t1;
 
 FLUSH STATUS;
 SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
@@ -372,6 +373,7 @@ DROP TABLE t2;
 
 CREATE TABLE t2 (i INT, key1 INT, key2 INT, INDEX (key1), INDEX (key2));
 INSERT INTO t2 (key1, key2) SELECT i, i FROM t1;
+INSERT INTO t2 (key1, key2) SELECT i+100, i+100 FROM t1;
 
 FLUSH STATUS;
 SELECT * FROM t2 WHERE key1 < 13 or key2 < 14 ORDER BY key1;
diff --git a/mysql-test/main/stat_tables.result b/mysql-test/main/stat_tables.result
index a753aaa2e5d..35659bc0076 100644
--- a/mysql-test/main/stat_tables.result
+++ b/mysql-test/main/stat_tables.result
@@ -852,6 +852,7 @@ set histogram_size=0;
 #
 create table t1 (a int, b int);
 insert into t1(a,b) values (1,2),(1,3),(1,4),(1,5),(2,6),(2,7),(3,8),(3,9),(3,9),(4,10);
+insert into t1 select seq,seq from seq_10_to_100;
 set use_stat_tables= preferably_for_queries;
 #
 # with use_stat_tables= PREFERABLY_FOR_QUERIES
@@ -865,7 +866,7 @@ db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_fr
 analyze
 select * from t1 where a = 1 and b=3;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	10.00	100.00	10.00	Using where
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	101	101.00	100.00	0.99	Using where
 #
 # with use_stat_tables= PREFERABLY_FOR_QUERIES
 # analyze table t1 will  collect statistics if we use PERSISTENT
@@ -877,12 +878,12 @@ test.t1	analyze	status	Engine-independent statistics collected
 test.t1	analyze	status	Table is already up to date
 select * from mysql.column_stats;
 db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
-test	t1	a	1	4	0.0000	4.0000	2.5000	0	NULL	NULL
+test	t1	a	1	100	0.0000	4.0000	1.0632	0	NULL	NULL
 # filtered shows that we used the data from stat tables
 analyze
 select * from t1 where a = 1 and b=3;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	10.00	25.00	10.00	Using where
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	101	101.00	1.05	0.99	Using where
 #
 # with use_stat_tables= PREFERABLY
 # analyze table t1 will collect statistics
@@ -894,13 +895,13 @@ test.t1	analyze	status	Engine-independent statistics collected
 test.t1	analyze	status	Table is already up to date
 select * from mysql.column_stats;
 db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
-test	t1	a	1	4	0.0000	4.0000	2.5000	0	NULL	NULL
-test	t1	b	2	10	0.0000	4.0000	1.1111	0	NULL	NULL
+test	t1	a	1	100	0.0000	4.0000	1.0632	0	NULL	NULL
+test	t1	b	2	100	0.0000	4.0000	1.0202	0	NULL	NULL
 # filtered shows that we used the data from stat tables
 analyze
 select * from t1 where a=1 and b=3;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	10.00	10.00	10.00	Using where
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	101	101.00	0.99	0.99	Using where
 drop table t1;
 set @@global.histogram_size=@save_histogram_size;
 # End of 10.4 tests
diff --git a/mysql-test/main/stat_tables.test b/mysql-test/main/stat_tables.test
index 7488ccb6877..fccae8d88c4 100644
--- a/mysql-test/main/stat_tables.test
+++ b/mysql-test/main/stat_tables.test
@@ -4,6 +4,7 @@
 
 --source include/have_stat_tables.inc
 --source include/have_partition.inc
+--source include/have_sequence.inc
 
 select @@global.use_stat_tables;
 select @@session.use_stat_tables;
@@ -602,6 +603,7 @@ set histogram_size=0;
 
 create table t1 (a int, b int);
 insert into t1(a,b) values (1,2),(1,3),(1,4),(1,5),(2,6),(2,7),(3,8),(3,9),(3,9),(4,10);
+insert into t1 select seq,seq from seq_10_to_100;
 set use_stat_tables= preferably_for_queries;
 --echo #
 --echo # with use_stat_tables= PREFERABLY_FOR_QUERIES
diff --git a/mysql-test/main/stat_tables_innodb.result b/mysql-test/main/stat_tables_innodb.result
index 732300e70e1..f874f6a0ff6 100644
--- a/mysql-test/main/stat_tables_innodb.result
+++ b/mysql-test/main/stat_tables_innodb.result
@@ -251,7 +251,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	n2	eq_ref	PRIMARY	PRIMARY	4	dbt3_s001.supplier.s_nationkey	1	
 1	SIMPLE	orders	eq_ref	PRIMARY,i_o_orderdate,i_o_custkey	PRIMARY	4	dbt3_s001.lineitem.l_orderkey	1	Using where
 1	SIMPLE	customer	eq_ref	PRIMARY,i_c_nationkey	PRIMARY	4	dbt3_s001.orders.o_custkey	1	Using where
-1	SIMPLE	n1	eq_ref	PRIMARY,i_n_regionkey	PRIMARY	4	dbt3_s001.customer.c_nationkey	1	Using where
+1	SIMPLE	n1	eq_ref	PRIMARY,i_n_regionkey	i_n_regionkey	9	dbt3_s001.region.r_regionkey,dbt3_s001.customer.c_nationkey	1	Using index
 select o_year,
 sum(case when nation = 'UNITED STATES' then volume else 0 end) /
 sum(volume) as mkt_share
@@ -884,6 +884,7 @@ set histogram_size=0;
 #
 create table t1 (a int, b int);
 insert into t1(a,b) values (1,2),(1,3),(1,4),(1,5),(2,6),(2,7),(3,8),(3,9),(3,9),(4,10);
+insert into t1 select seq,seq from seq_10_to_100;
 set use_stat_tables= preferably_for_queries;
 #
 # with use_stat_tables= PREFERABLY_FOR_QUERIES
@@ -897,7 +898,7 @@ db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_fr
 analyze
 select * from t1 where a = 1 and b=3;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	10.00	100.00	10.00	Using where
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	101	101.00	100.00	0.99	Using where
 #
 # with use_stat_tables= PREFERABLY_FOR_QUERIES
 # analyze table t1 will  collect statistics if we use PERSISTENT
@@ -909,12 +910,12 @@ test.t1	analyze	status	Engine-independent statistics collected
 test.t1	analyze	status	OK
 select * from mysql.column_stats;
 db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
-test	t1	a	1	4	0.0000	4.0000	2.5000	0	NULL	NULL
+test	t1	a	1	100	0.0000	4.0000	1.0632	0	NULL	NULL
 # filtered shows that we used the data from stat tables
 analyze
 select * from t1 where a = 1 and b=3;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	10.00	25.00	10.00	Using where
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	101	101.00	1.05	0.99	Using where
 #
 # with use_stat_tables= PREFERABLY
 # analyze table t1 will collect statistics
@@ -926,13 +927,13 @@ test.t1	analyze	status	Engine-independent statistics collected
 test.t1	analyze	status	OK
 select * from mysql.column_stats;
 db_name	table_name	column_name	min_value	max_value	nulls_ratio	avg_length	avg_frequency	hist_size	hist_type	histogram
-test	t1	a	1	4	0.0000	4.0000	2.5000	0	NULL	NULL
-test	t1	b	2	10	0.0000	4.0000	1.1111	0	NULL	NULL
+test	t1	a	1	100	0.0000	4.0000	1.0632	0	NULL	NULL
+test	t1	b	2	100	0.0000	4.0000	1.0202	0	NULL	NULL
 # filtered shows that we used the data from stat tables
 analyze
 select * from t1 where a=1 and b=3;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	r_rows	filtered	r_filtered	Extra
-1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	10	10.00	10.00	10.00	Using where
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	101	101.00	0.99	0.99	Using where
 drop table t1;
 set @@global.histogram_size=@save_histogram_size;
 # End of 10.4 tests
diff --git a/mysql-test/main/status.result b/mysql-test/main/status.result
index 18e792ef02e..de2c9d79dcd 100644
--- a/mysql-test/main/status.result
+++ b/mysql-test/main/status.result
@@ -71,10 +71,10 @@ a
 6
 show status like 'last_query_cost';
 Variable_name	Value
-Last_query_cost	22.084449
+Last_query_cost	13.542725
 show status like 'last_query_cost';
 Variable_name	Value
-Last_query_cost	22.084449
+Last_query_cost	13.542725
 select 1;
 1
 1
@@ -134,13 +134,13 @@ a
 1
 SHOW SESSION STATUS LIKE 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	2.802418
+Last_query_cost	1.501709
 EXPLAIN SELECT a FROM t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	2	
 SHOW SESSION STATUS LIKE 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	2.802418
+Last_query_cost	1.501709
 SELECT a FROM t1 UNION SELECT a FROM t1 ORDER BY a;
 a
 1
@@ -173,7 +173,7 @@ a	a
 1	1
 SHOW SESSION STATUS LIKE 'Last_query_cost';
 Variable_name	Value
-Last_query_cost	6.805836
+Last_query_cost	4.003418
 DROP TABLE t1;
 connect  con1,localhost,root,,;
 show status like 'com_show_status';
diff --git a/mysql-test/main/subselect.result b/mysql-test/main/subselect.result
index 79c6cd78e92..eb787a1e4c0 100644
--- a/mysql-test/main/subselect.result
+++ b/mysql-test/main/subselect.result
@@ -1449,21 +1449,21 @@ a
 4
 explain extended select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t2	index	PRIMARY	PRIMARY	4	NULL	4	100.00	Using index
-1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	test.t2.a	1	100.00	Using where
+1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	4	100.00	Using where
+1	PRIMARY	t2	eq_ref	PRIMARY	PRIMARY	4	test.t1.a	1	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t2` where `test`.`t1`.`a` = `test`.`t2`.`a` and `test`.`t1`.`b` <> 30
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t2` where `test`.`t2`.`a` = `test`.`t1`.`a` and `test`.`t1`.`b` <> 30
 select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
 a
 2
 3
 explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t2	index	PRIMARY	PRIMARY	4	NULL	4	100.00	Using index
-1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	test.t2.a	1	100.00	
-1	PRIMARY	t3	index	PRIMARY	PRIMARY	4	NULL	3	75.00	Using where; Using index; Using join buffer (flat, BNL join)
+1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	4	100.00	Using where
+1	PRIMARY	t2	eq_ref	PRIMARY	PRIMARY	4	test.t1.a	1	100.00	Using index
+1	PRIMARY	t3	eq_ref	PRIMARY	PRIMARY	4	test.t1.b	1	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t3` join `test`.`t2` where `test`.`t3`.`a` = `test`.`t1`.`b` and `test`.`t1`.`a` = `test`.`t2`.`a`
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t3` join `test`.`t2` where `test`.`t3`.`a` = `test`.`t1`.`b` and `test`.`t2`.`a` = `test`.`t1`.`a`
 drop table t1, t2, t3;
 create table t1 (a int, b int, index a (a,b));
 create table t2 (a int, index a (a));
@@ -1503,7 +1503,7 @@ a
 explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t2	index	a	a	5	NULL	4	100.00	Using where; Using index
-1	PRIMARY	t3	range	a	a	5	NULL	3	100.00	Using where; Using index
+1	PRIMARY	t3	index	a	a	5	NULL	3	100.00	Using where; Using index
 1	PRIMARY	t1	ref	a	a	10	test.t2.a,test.t3.a	116	100.00	Using index; FirstMatch(t2)
 Warnings:
 Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1` join `test`.`t3`) where `test`.`t1`.`b` = `test`.`t3`.`a` and `test`.`t1`.`a` = `test`.`t2`.`a`
@@ -1611,21 +1611,21 @@ a3	1
 explain extended select s1, s1 NOT IN (SELECT s1 FROM t2) from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
-2	SUBQUERY	t2	index_subquery	s1	s1	6	func	2	100.00	Using index; Full scan on NULL key
+2	DEPENDENT SUBQUERY	t2	index	s1	s1	6	NULL	2	100.00	Using where; Using index
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1`
+Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(/* select#2 */ select `test`.`t2`.`s1` from `test`.`t2` where trigcond(<cache>(`test`.`t1`.`s1`) = `test`.`t2`.`s1` or `test`.`t2`.`s1` is null) having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1`
 explain extended select s1, s1 = ANY (SELECT s1 FROM t2) from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
-2	SUBQUERY	t2	index_subquery	s1	s1	6	func	2	100.00	Using index; Full scan on NULL key
+2	DEPENDENT SUBQUERY	t2	index	s1	s1	6	NULL	2	100.00	Using where; Using index
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null))))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1`
+Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(/* select#2 */ select `test`.`t2`.`s1` from `test`.`t2` where trigcond(<cache>(`test`.`t1`.`s1`) = `test`.`t2`.`s1` or `test`.`t2`.`s1` is null) having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1`
 explain extended select s1, s1 <> ALL (SELECT s1 FROM t2) from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
-2	SUBQUERY	t2	index_subquery	s1	s1	6	func	2	100.00	Using index; Full scan on NULL key
+2	DEPENDENT SUBQUERY	t2	index	s1	s1	6	NULL	2	100.00	Using where; Using index
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1`
+Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(/* select#2 */ select `test`.`t2`.`s1` from `test`.`t2` where trigcond(<cache>(`test`.`t1`.`s1`) = `test`.`t2`.`s1` or `test`.`t2`.`s1` is null) having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1`
 explain extended select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
@@ -2418,16 +2418,18 @@ a
 3
 DROP TABLE t1;
 create table t1 (a int, b int);
-insert into t1 values (1,2),(3,4);
+insert into t1 values (1,2),(3,4),(5,6),(7,8);
 select * from t1 up where exists (select * from t1 where t1.a=up.a);
 a	b
 1	2
 3	4
+5	6
+7	8
 explain extended select * from t1 up where exists (select * from t1 where t1.a=up.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	up	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	PRIMARY	up	ALL	NULL	NULL	NULL	NULL	4	100.00	
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	
 Warnings:
 Note	1276	Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1
 Note	1003	select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` semi join (`test`.`t1`) where 1
@@ -3100,7 +3102,7 @@ retailerID	statusID	changed
 drop table t1;
 create table t1(a int, primary key (a));
 insert into t1 values (10);
-create table t2 (a int primary key, b varchar(32), c int, unique key b(c, b));
+create table t2 (a int primary key, b varchar(32), c int, unique key cb(c, b));
 insert into t2(a, c, b) values (1,10,'359'), (2,10,'35988'), (3,10,'35989');
 insert into t2(a, c, b) values (4,10,'360'), (5,10,'35998'), (6,10,'35999');
 analyze table t1;
@@ -3113,7 +3115,7 @@ ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	PRIMARY	NULL	NULL	NULL	1	
 1	PRIMARY	r	const	PRIMARY	PRIMARY	4	const	1	
-2	SUBQUERY	t2	range	b	b	40	NULL	3	Using where
+2	SUBQUERY	t2	ref	cb	cb	5	const	1	Using where
 SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r
 ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
             ORDER BY t2.c DESC, t2.b DESC LIMIT 1) WHERE t1.a = 10;
@@ -3125,7 +3127,7 @@ ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	PRIMARY	NULL	NULL	NULL	1	
 1	PRIMARY	r	const	PRIMARY	PRIMARY	4	const	1	
-2	SUBQUERY	t2	range	b	b	40	NULL	3	Using index condition
+2	SUBQUERY	t2	ref	cb	cb	5	const	1	Using index condition; Using where
 SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r
 ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
             ORDER BY t2.c, t2.b LIMIT 1) WHERE t1.a = 10;
@@ -4438,7 +4440,7 @@ out_a	MIN(b)
 DROP TABLE t1;
 CREATE TABLE t1 (a INT);
 CREATE TABLE t2 (a INT);
-INSERT INTO t1 VALUES (1),(2);
+INSERT INTO t1 VALUES (1),(2),(3),(4);
 INSERT INTO t2 VALUES (1),(2);
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
 2
@@ -4447,7 +4449,7 @@ SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
 EXPLAIN EXTENDED
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	
 Warnings:
@@ -4457,7 +4459,7 @@ EXPLAIN EXTENDED
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a) UNION
 (SELECT 1 FROM t2 WHERE t1.a = t2.a));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 3	DEPENDENT UNION	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
@@ -4541,15 +4543,15 @@ SET @save_join_cache_level=@@join_cache_level;
 SET join_cache_level=0;
 EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 GROUP BY a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	4	const	1	100.00	
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using temporary
 Warnings:
 Note	1003	/* select#1 */ select 1 AS `1` from  <materialize> (/* select#2 */ select min(`test`.`t1`.`a`) from `test`.`t1` group by `test`.`t1`.`a`) join `test`.`t1` where `<subquery2>`.`min(a)` = 1
 EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 WHERE a > 3 GROUP BY a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	4	const	1	100.00	
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using temporary
 Warnings:
 Note	1003	/* select#1 */ select 1 AS `1` from  <materialize> (/* select#2 */ select min(`test`.`t1`.`a`) from `test`.`t1` where `test`.`t1`.`a` > 3 group by `test`.`t1`.`a`) join `test`.`t1` where `<subquery2>`.`min(a)` = 1
@@ -6080,8 +6082,7 @@ WHERE col_varchar_nokey IN
 (SELECT col_varchar_key FROM it1 WHERE col_int_key IS NULL);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	ot	system	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	it1	ref	idx_cvk_cik	idx_cvk_cik	9	const,const	1	Using where; Using index
+1	PRIMARY	it1	ref	idx_cvk_cik	idx_cvk_cik	9	const,const	1	Using where; Using index; FirstMatch(ot)
 SELECT col_int_nokey FROM ot 
 WHERE col_varchar_nokey IN 
 (SELECT col_varchar_key FROM it1 WHERE col_int_key IS NULL);
@@ -6093,8 +6094,7 @@ WHERE (col_varchar_nokey, 'x') IN
 (SELECT col_varchar_key, col_varchar_key2 FROM it2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	ot	system	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func,func	1	
-2	MATERIALIZED	it2	ref	idx_cvk_cvk2_cik,idx_cvk_cik	idx_cvk_cvk2_cik	8	const,const	1	Using where; Using index
+1	PRIMARY	it2	ref	idx_cvk_cvk2_cik,idx_cvk_cik	idx_cvk_cvk2_cik	8	const,const	1	Using where; Using index; FirstMatch(ot)
 SELECT col_int_nokey FROM ot
 WHERE (col_varchar_nokey, 'x') IN
 (SELECT col_varchar_key, col_varchar_key2 FROM it2);
diff --git a/mysql-test/main/subselect.test b/mysql-test/main/subselect.test
index be22169a1d6..90b96d4be9e 100644
--- a/mysql-test/main/subselect.test
+++ b/mysql-test/main/subselect.test
@@ -7,6 +7,7 @@
 #       as possible.
 #
 # Initialise
+--source include/have_sequence.inc
 --disable_warnings
 drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t11,t12;
 drop view if exists v2;
@@ -1024,6 +1025,7 @@ create table t1 (s1 char(5), index s1(s1));
 create table t2 (s1 char(5), index s1(s1));
 insert into t1 values ('a1'),('a2'),('a3');
 insert into t2 values ('a1'),('a2');
+
 select s1, s1 NOT IN (SELECT s1 FROM t2) from t1;
 select s1, s1 = ANY (SELECT s1 FROM t2) from t1;
 select s1, s1 <> ALL (SELECT s1 FROM t2) from t1;
@@ -1456,7 +1458,7 @@ DROP TABLE t1;
 #--view-protocol is disabled because view gives another query plan
 --disable_view_protocol
 create table t1 (a int, b int);
-insert into t1 values (1,2),(3,4);
+insert into t1 values (1,2),(3,4),(5,6),(7,8);
 select * from t1 up where exists (select * from t1 where t1.a=up.a);
 explain extended select * from t1 up where exists (select * from t1 where t1.a=up.a);
 drop table t1;
@@ -2066,7 +2068,7 @@ drop table t1;
 create table t1(a int, primary key (a));
 insert into t1 values (10);
 
-create table t2 (a int primary key, b varchar(32), c int, unique key b(c, b));
+create table t2 (a int primary key, b varchar(32), c int, unique key cb(c, b));
 insert into t2(a, c, b) values (1,10,'359'), (2,10,'35988'), (3,10,'35989');
 insert into t2(a, c, b) values (4,10,'360'), (5,10,'35998'), (6,10,'35999');
 analyze table t1;
@@ -3383,7 +3385,7 @@ DROP TABLE t1;
 CREATE TABLE t1 (a INT);
 CREATE TABLE t2 (a INT);
 
-INSERT INTO t1 VALUES (1),(2);
+INSERT INTO t1 VALUES (1),(2),(3),(4);
 INSERT INTO t2 VALUES (1),(2);
 
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
diff --git a/mysql-test/main/subselect2.result b/mysql-test/main/subselect2.result
index db6c85900ad..dea2a963caf 100644
--- a/mysql-test/main/subselect2.result
+++ b/mysql-test/main/subselect2.result
@@ -132,7 +132,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t3_b	eq_ref	PRIMARY,FFOLDERID_IDX,CMFLDRPARNT_IDX	PRIMARY	34	test.t3_a.PARENTID	1	Using where
 1	PRIMARY	t3_c	eq_ref	PRIMARY,FFOLDERID_IDX,CMFLDRPARNT_IDX	PRIMARY	34	test.t3_b.PARENTID	1	Using where
 1	PRIMARY	t3_d	eq_ref	PRIMARY,FFOLDERID_IDX,CMFLDRPARNT_IDX	PRIMARY	34	test.t3_c.PARENTID	1	Using where
-1	PRIMARY	t3_e	ref|filter	PRIMARY,FFOLDERID_IDX,CMFLDRPARNT_IDX	FFOLDERID_IDX|CMFLDRPARNT_IDX	34|35	test.t3_d.PARENTID	1 (29%)	Using where; Using rowid filter
+1	PRIMARY	t3_e	eq_ref	PRIMARY,FFOLDERID_IDX,CMFLDRPARNT_IDX	PRIMARY	34	test.t3_d.PARENTID	1	Using where
 drop table t1, t2, t3, t4;
 CREATE TABLE t1 (a int(10) , PRIMARY KEY (a)) Engine=InnoDB;
 INSERT INTO t1 VALUES (1),(2);
@@ -163,7 +163,7 @@ SELECT * FROM t2,t3 WHERE (2,9) IN (SELECT DISTINCT a,pk FROM t1) OR a = b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	index	a	a	5	NULL	2	Using where; Using index
 1	PRIMARY	t3	ref	b	b	5	test.t2.a	2	Using index
-2	SUBQUERY	t1	const	PRIMARY,a	PRIMARY	4	const	1	Using where
+2	SUBQUERY	t1	const	PRIMARY,a	a	9	const,const	1	Using where; Using index
 SELECT * FROM t2,t3 WHERE (2,9) IN (SELECT DISTINCT a,pk FROM t1) OR a = b;
 pk	a	b
 0	4	4
@@ -172,7 +172,7 @@ SELECT * FROM t2,t3 WHERE (2,9) IN (SELECT DISTINCT a,pk FROM v1) OR a = b;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	index	a	a	5	NULL	2	Using where; Using index
 1	PRIMARY	t3	ref	b	b	5	test.t2.a	2	Using index
-2	SUBQUERY	t1	const	PRIMARY,a	PRIMARY	4	const	1	Using where
+2	SUBQUERY	t1	const	PRIMARY,a	a	9	const,const	1	Using where; Using index
 SELECT * FROM t2,t3 WHERE (2,9) IN (SELECT DISTINCT a,pk FROM v1) OR a = b;
 pk	a	b
 0	4	4
@@ -287,7 +287,7 @@ ORDER BY mirror_date ASC
 ) AS calculated_result;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	<derived2>	ALL	NULL	NULL	NULL	NULL	3	
-2	DERIVED	t1	range	date	date	6	NULL	3	Using index condition; Using where; Rowid-ordered scan; Using filesort
+2	DERIVED	t1	ALL	date	NULL	NULL	NULL	3	Using where; Using filesort
 SELECT * FROM (
 SELECT node_uid, date, mirror_date, @result := 0 AS result
 FROM t1
@@ -310,7 +310,7 @@ ORDER BY mirror_date ASC
 ) AS calculated_result;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	<derived2>	ALL	NULL	NULL	NULL	NULL	3	
-2	DERIVED	t1	range	date	date	6	NULL	3	Using index condition; Using where; Using filesort
+2	DERIVED	t1	ALL	date	NULL	NULL	NULL	3	Using where; Using filesort
 SELECT * FROM (
 SELECT node_uid, date, mirror_date, @result := 0 AS result
 FROM t1
diff --git a/mysql-test/main/subselect3.result b/mysql-test/main/subselect3.result
index 28187e0ffdd..fe6ef646886 100644
--- a/mysql-test/main/subselect3.result
+++ b/mysql-test/main/subselect3.result
@@ -96,10 +96,10 @@ explain extended
 select oref, a, a in (select a from t1 where oref=t2.oref) Z from t2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	4	100.00	
-2	DEPENDENT SUBQUERY	t1	ALL	a	NULL	NULL	NULL	8	100.00	Using where
+2	DEPENDENT SUBQUERY	t1	index_subquery	a	a	5	func	3	100.00	Using where; Full scan on NULL key
 Warnings:
 Note	1276	Field or reference 'test.t2.oref' of SELECT #2 was resolved in SELECT #1
-Note	1003	/* select#1 */ select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,<expr_cache><`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(/* select#2 */ select `test`.`t1`.`a` from `test`.`t1` where `test`.`t1`.`oref` = `test`.`t2`.`oref` and trigcond(<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a` or `test`.`t1`.`a` is null) having trigcond(`test`.`t1`.`a` is null)))) AS `Z` from `test`.`t2`
+Note	1003	/* select#1 */ select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,<expr_cache><`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a checking NULL where `test`.`t1`.`oref` = `test`.`t2`.`oref` having trigcond(`test`.`t1`.`a` is null))))) AS `Z` from `test`.`t2`
 flush status;
 select oref, a from t2 where a in (select a from t1 where oref=t2.oref);
 oref	a
@@ -1339,9 +1339,9 @@ insert into t2 select * from t2;
 explain select * from t1 where (a,b,c) in (select X.a, Y.a, Z.a from t2 X, t2 Y, t2 Z where X.b=33);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	
-1	PRIMARY	X	ALL	NULL	NULL	NULL	NULL	6	Using where; Start temporary; Using join buffer (flat, BNL join)
-1	PRIMARY	Y	ALL	NULL	NULL	NULL	NULL	6	Using where; Using join buffer (flat, BNL join)
-1	PRIMARY	Z	ALL	NULL	NULL	NULL	NULL	6	Using where; End temporary; Using join buffer (flat, BNL join)
+1	PRIMARY	X	ALL	NULL	NULL	NULL	NULL	6	Using where
+1	PRIMARY	Y	ALL	NULL	NULL	NULL	NULL	6	Using where
+1	PRIMARY	Z	ALL	NULL	NULL	NULL	NULL	6	Using where; FirstMatch(t1)
 drop table t0,t1,t2;
 set @@optimizer_switch=@save_optimizer_switch;
 
diff --git a/mysql-test/main/subselect3_jcl6.result b/mysql-test/main/subselect3_jcl6.result
index 9df821e07dc..25d76e6ee8c 100644
--- a/mysql-test/main/subselect3_jcl6.result
+++ b/mysql-test/main/subselect3_jcl6.result
@@ -99,10 +99,10 @@ explain extended
 select oref, a, a in (select a from t1 where oref=t2.oref) Z from t2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	4	100.00	
-2	DEPENDENT SUBQUERY	t1	ALL	a	NULL	NULL	NULL	8	100.00	Using where
+2	DEPENDENT SUBQUERY	t1	index_subquery	a	a	5	func	3	100.00	Using where; Full scan on NULL key
 Warnings:
 Note	1276	Field or reference 'test.t2.oref' of SELECT #2 was resolved in SELECT #1
-Note	1003	/* select#1 */ select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,<expr_cache><`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(/* select#2 */ select `test`.`t1`.`a` from `test`.`t1` where `test`.`t1`.`oref` = `test`.`t2`.`oref` and trigcond(<cache>(`test`.`t2`.`a`) = `test`.`t1`.`a` or `test`.`t1`.`a` is null) having trigcond(`test`.`t1`.`a` is null)))) AS `Z` from `test`.`t2`
+Note	1003	/* select#1 */ select `test`.`t2`.`oref` AS `oref`,`test`.`t2`.`a` AS `a`,<expr_cache><`test`.`t2`.`a`,`test`.`t2`.`oref`>(<in_optimizer>(`test`.`t2`.`a`,<exists>(<index_lookup>(<cache>(`test`.`t2`.`a`) in t1 on a checking NULL where `test`.`t1`.`oref` = `test`.`t2`.`oref` having trigcond(`test`.`t1`.`a` is null))))) AS `Z` from `test`.`t2`
 flush status;
 select oref, a from t2 where a in (select a from t1 where oref=t2.oref);
 oref	a
@@ -622,8 +622,8 @@ aa	1	1
 bb	NULL	NULL
 select oref, a from t2 where a in (select ie from t1 where oref=t2.oref);
 oref	a
-aa	1
 cc	5
+aa	1
 select oref, a from t2 where a not in (select ie from t1 where oref=t2.oref);
 oref	a
 ee	NULL
diff --git a/mysql-test/main/subselect4.result b/mysql-test/main/subselect4.result
index 6f29fe34ca5..c277a4ba5c9 100644
--- a/mysql-test/main/subselect4.result
+++ b/mysql-test/main/subselect4.result
@@ -714,8 +714,7 @@ WHERE ( t1.f10 ) IN ( SELECT f11 FROM t2 GROUP BY f11 ));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
 2	SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	
-2	SUBQUERY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	
-3	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	2	
+2	SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where; FirstMatch(t1); Using join buffer (flat, BNL join)
 SELECT * FROM t1
 WHERE f3 = (
 SELECT t1.f3 FROM t1
@@ -729,8 +728,7 @@ WHERE ( f10, f10 ) IN ( SELECT f11, f11 FROM t2 GROUP BY f11 ));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
 2	SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	
-2	SUBQUERY	<subquery3>	eq_ref	distinct_key	distinct_key	8	func,func	1	
-3	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	2	
+2	SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where; FirstMatch(t1); Using join buffer (flat, BNL join)
 SELECT * FROM t1
 WHERE f3 = (
 SELECT f3 FROM t1
@@ -1371,7 +1369,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	NULL	NULL	NULL	NULL	1	
 2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where
 3	SUBQUERY	SQ1_t1	index	NULL	f4	5	NULL	2	Using index; Using temporary
-3	SUBQUERY	SQ1_t3	range	f4	f4	5	NULL	2	Using where; Using index; Using join buffer (flat, BNL join)
+3	SUBQUERY	SQ1_t3	index	f4	f4	5	NULL	2	Using where; Using index; Using join buffer (flat, BNL join)
 SELECT * FROM t1 WHERE
 (SELECT f2 FROM t2
 WHERE f4 <= ALL
@@ -1391,8 +1389,8 @@ INSERT INTO t2 VALUES (1), (2);
 EXPLAIN  
 SELECT i FROM t1 WHERE (1) NOT IN (SELECT i FROM t2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t1	system	NULL	NULL	NULL	NULL	1	
-2	SUBQUERY	t2	index_subquery	k	k	5	const	2	Using index
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	t2	index	k	k	5	NULL	2	Using where; Using index
 DROP TABLE t2;
 DROP TABLE t1;
 #
@@ -1788,7 +1786,7 @@ SELECT * FROM t1 WHERE ( 6 ) NOT IN ( SELECT t2.f3 FROM t2 JOIN t3 ON t3.f10 = t
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 2	SUBQUERY	t3	system	NULL	NULL	NULL	NULL	1	
-2	SUBQUERY	t2	ref_or_null	f10	f10	10	const,const	2	Using where; Using index
+2	SUBQUERY	t2	index	f10	f10	10	NULL	2	Using where; Using index
 SELECT * FROM t1 WHERE ( 6 ) NOT IN ( SELECT t2.f3 FROM t2 JOIN t3 ON t3.f10 = t2.f10);
 f4
 drop table t1,t2,t3;
@@ -2902,8 +2900,8 @@ WHERE tn.key1 IN ('1','2','3','4','5','6','7','8','9','10')
 );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	hist	ALL	NULL	NULL	NULL	NULL	100	Using where
-2	DEPENDENT SUBQUERY	tms	range	PRIMARY	PRIMARY	32	NULL	10	Using where; Using index
-2	DEPENDENT SUBQUERY	tn	eq_ref	PRIMARY	PRIMARY	32	test.tms.key1	1	Using where
+2	DEPENDENT SUBQUERY	tn	range	PRIMARY	PRIMARY	32	NULL	10	Using index condition; Using where
+2	DEPENDENT SUBQUERY	tms	eq_ref	PRIMARY	PRIMARY	32	test.tn.key1	1	Using index
 set optimizer_switch=@tmp_os;
 drop table t1, t10, t11;
 #
@@ -3132,10 +3130,9 @@ where b in (select c from t3
 group by (select a from t1 where a = 1) in (select d from t4));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-2	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; FirstMatch(t2); Using join buffer (flat, BNL join)
 Warnings:
-Note	1003	select `test`.`t2`.`b` AS `b` from `test`.`t2` semi join (`test`.`t3`) where 1
+Note	1003	select `test`.`t2`.`b` AS `b` from `test`.`t2` semi join (`test`.`t3`) where `test`.`t3`.`c` = `test`.`t2`.`b`
 select b from t2
 where b in (select c from t3
 group by (select a from t1 where a = 1) in (select d from t4));
diff --git a/mysql-test/main/subselect_exists2in.result b/mysql-test/main/subselect_exists2in.result
index a473f48e0f6..c01c28fc258 100644
--- a/mysql-test/main/subselect_exists2in.result
+++ b/mysql-test/main/subselect_exists2in.result
@@ -902,9 +902,8 @@ WHERE EXISTS ( SELECT * FROM t1 AS sq2
 WHERE sq1.`pk` IN ( SELECT f1 FROM t1 ) AND sq2.f1 = sq1.f1 );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
-3	DEPENDENT SUBQUERY	sq2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
-3	DEPENDENT SUBQUERY	<subquery4>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-4	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+3	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; FirstMatch
+3	DEPENDENT SUBQUERY	sq2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (flat, BNL join)
 Warnings:
 Note	1276	Field or reference 'sq1.pk' of SELECT #3 was resolved in SELECT #1
 Note	1276	Field or reference 'sq1.f1' of SELECT #3 was resolved in SELECT #1
@@ -922,9 +921,8 @@ WHERE EXISTS ( SELECT * FROM t1 AS sq2
 WHERE sq1.`pk` IN ( SELECT f1 FROM t1 ) AND sq2.f1 = sq1.f1 );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
-3	DEPENDENT SUBQUERY	sq2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
-3	DEPENDENT SUBQUERY	<subquery4>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-4	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+3	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; FirstMatch
+3	DEPENDENT SUBQUERY	sq2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (flat, BNL join)
 Warnings:
 Note	1276	Field or reference 'sq1.pk' of SELECT #3 was resolved in SELECT #1
 Note	1276	Field or reference 'sq1.f1' of SELECT #3 was resolved in SELECT #1
diff --git a/mysql-test/main/subselect_exists2in_costmat.result b/mysql-test/main/subselect_exists2in_costmat.result
index 1c9574aafd3..5630f8f275a 100644
--- a/mysql-test/main/subselect_exists2in_costmat.result
+++ b/mysql-test/main/subselect_exists2in_costmat.result
@@ -64,8 +64,8 @@ Code = Country) OR
 Name LIKE 'L%') AND
 surfacearea > 1000000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	Country	ALL	Name,SurfaceArea	NULL	NULL	NULL	239	Using where
-2	MATERIALIZED	City	ALL	Population,Country	NULL	NULL	NULL	4079	Using where
+1	PRIMARY	Country	range	Name,SurfaceArea	SurfaceArea	4	NULL	71	Using index condition; Using where; Rowid-ordered scan
+2	DEPENDENT SUBQUERY	City	index_subquery	Population,Country	Country	3	func	17	Using where
 SELECT Name FROM Country
 WHERE (EXISTS (select 1 from City where City.Population > 100000 and
 Code = Country) OR
diff --git a/mysql-test/main/subselect_exists2in_costmat.test b/mysql-test/main/subselect_exists2in_costmat.test
index 371f0936d1a..dd3890496f5 100644
--- a/mysql-test/main/subselect_exists2in_costmat.test
+++ b/mysql-test/main/subselect_exists2in_costmat.test
@@ -67,6 +67,7 @@ set @@optimizer_switch = 'exists_to_in=on,in_to_exists=on,semijoin=on,materializ
 -- echo Q1.1m:
 -- echo MATERIALIZATION: there are too many rows in the outer query
 -- echo to be looked up in the inner table.
+
 EXPLAIN
 SELECT Name FROM Country
 WHERE (EXISTS (select 1 from City where City.Population > 100000 and
diff --git a/mysql-test/main/subselect_extra.result b/mysql-test/main/subselect_extra.result
index c654fdfca13..057d05e0038 100644
--- a/mysql-test/main/subselect_extra.result
+++ b/mysql-test/main/subselect_extra.result
@@ -451,8 +451,8 @@ WHERE t3.b IN (SELECT v1.b FROM  v1, t2
 WHERE t2.c = v1.c AND t2.c = v1.b AND v1.b = t3.c);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	system	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<derived3>	ref	key1	key1	8	const,const	0	Start temporary
-1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	2	Using where; End temporary; Using join buffer (flat, BNL join)
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	2	Using where
+1	PRIMARY	<derived3>	ref	key1	key1	8	const,const	0	FirstMatch(t3)
 3	DERIVED	t1	ALL	NULL	NULL	NULL	NULL	3	Using where
 SELECT * FROM t3 
 WHERE t3.b IN (SELECT v1.b FROM  v1, t2 
diff --git a/mysql-test/main/subselect_innodb.result b/mysql-test/main/subselect_innodb.result
index 0c44708eb32..c95cf3abb37 100644
--- a/mysql-test/main/subselect_innodb.result
+++ b/mysql-test/main/subselect_innodb.result
@@ -314,7 +314,7 @@ EXPLAIN SELECT 1 FROM t1 WHERE NOT EXISTS
 (SELECT 1 FROM t2 WHERE d = (SELECT d FROM t2 WHERE a >= 1) ORDER BY d);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	1	Using where
-2	DEPENDENT SUBQUERY	t2	unique_subquery	PRIMARY,d	PRIMARY	1	func	1	Using where
+2	DEPENDENT SUBQUERY	t2	unique_subquery	PRIMARY,d	d	2	func	1	Using index; Using where
 3	DEPENDENT SUBQUERY	t2	index	NULL	d	2	NULL	1	Using index
 DROP TABLE t2;
 CREATE TABLE t2 (b INT, c INT, UNIQUE KEY (b), UNIQUE KEY (b, c )) ENGINE=INNODB;
@@ -612,11 +612,10 @@ INNER JOIN
 ON ( 1 IN ( SELECT f4 FROM t4 ) ) )
 ON ( f1 >= f2 );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
-1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; FirstMatch
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using join buffer (flat, BNL join)
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using join buffer (incremental, BNL join)
 1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	Using join buffer (incremental, BNL join)
-3	MATERIALIZED	t4	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 Warnings:
 Note	1003	select `test`.`t1`.`f1` AS `f1`,`test`.`t2`.`f2` AS `f2`,`test`.`t3`.`f3` AS `f3` from `test`.`t1` join `test`.`t2` semi join (`test`.`t4`) join `test`.`t3` where `test`.`t4`.`f4` = 1 and `test`.`t1`.`f1` >= `test`.`t2`.`f2`
 DROP TABLE t1,t2,t3,t4;
diff --git a/mysql-test/main/subselect_mat.result b/mysql-test/main/subselect_mat.result
index 2353e18c28e..f2ee080454b 100644
--- a/mysql-test/main/subselect_mat.result
+++ b/mysql-test/main/subselect_mat.result
@@ -105,7 +105,7 @@ explain extended
 select * from t1i where a1 in (select b1 from t2i where b1 > '0');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1i	index	NULL	_it1_idx	#	NULL	3	100.00	Using where; 
-2	MATERIALIZED	t2i	range	it2i1,it2i3	it2i1	#	NULL	5	100.00	Using where; 
+2	MATERIALIZED	t2i	index	it2i1,it2i3	it2i1	#	NULL	5	100.00	Using where; 
 Warnings:
 Note	1003	/* select#1 */ select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <expr_cache><`test`.`t1i`.`a1`>(<in_optimizer>(`test`.`t1i`.`a1`,`test`.`t1i`.`a1` in ( <materialize> (/* select#2 */ select `test`.`t2i`.`b1` from `test`.`t2i` where `test`.`t2i`.`b1` > '0' ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where `test`.`t1i`.`a1` = `<subquery2>`.`b1`))))
 select * from t1i where a1 in (select b1 from t2i where b1 > '0');
@@ -127,7 +127,7 @@ explain extended
 select * from t1i where (a1, a2) in (select b1, b2 from t2i where b1 > '0');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1i	index	NULL	_it1_idx	#	NULL	3	100.00	Using where; 
-2	MATERIALIZED	t2i	range	it2i1,it2i3	it2i3	#	NULL	5	100.00	Using where; 
+2	MATERIALIZED	t2i	index	it2i1,it2i3	it2i3	#	NULL	5	100.00	Using where; 
 Warnings:
 Note	1003	/* select#1 */ select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <expr_cache><`test`.`t1i`.`a1`,`test`.`t1i`.`a2`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (/* select#2 */ select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where `test`.`t2i`.`b1` > '0' ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where `test`.`t1i`.`a1` = `<subquery2>`.`b1` and `test`.`t1i`.`a2` = `<subquery2>`.`b2`))))
 select * from t1i where (a1, a2) in (select b1, b2 from t2i where b1 > '0');
@@ -340,7 +340,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1i	index	NULL	#	#	#	3	100.00	#
 3	MATERIALIZED	t3i	index	NULL	#	#	#	4	100.00	#
 4	MATERIALIZED	t2i	index	it2i2	#	#	#	5	100.00	#
-2	MATERIALIZED	t2i	range	it2i1,it2i3	#	#	#	5	100.00	#
+2	MATERIALIZED	t2i	index	it2i1,it2i3	#	#	#	5	100.00	#
 Warnings:
 Note	1003	/* select#1 */ select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <expr_cache><`test`.`t1i`.`a1`,`test`.`t1i`.`a2`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (/* select#2 */ select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where `test`.`t2i`.`b1` > '0' ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where `test`.`t1i`.`a1` = `<subquery2>`.`b1` and `test`.`t1i`.`a2` = `<subquery2>`.`b2`)))) and <expr_cache><`test`.`t1i`.`a1`,`test`.`t1i`.`a2`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (/* select#3 */ select `test`.`t3i`.`c1`,`test`.`t3i`.`c2` from `test`.`t3i` where <expr_cache><`test`.`t3i`.`c1`,`test`.`t3i`.`c2`>(<in_optimizer>((`test`.`t3i`.`c1`,`test`.`t3i`.`c2`),(`test`.`t3i`.`c1`,`test`.`t3i`.`c2`) in ( <materialize> (/* select#4 */ select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where `test`.`t2i`.`b2` > '0' ), <primary_index_lookup>(`test`.`t3i`.`c1` in <temporary table> on distinct_key where `test`.`t3i`.`c1` = `<subquery4>`.`b1` and `test`.`t3i`.`c2` = `<subquery4>`.`b2`)))) ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where `test`.`t1i`.`a1` = `<subquery3>`.`c1` and `test`.`t1i`.`a2` = `<subquery3>`.`c2`))))
 select * from t1i
@@ -423,7 +423,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 7	UNION	t1i	index	NULL	#	#	#	3	100.00	#
 9	MATERIALIZED	t3i	index	NULL	#	#	#	4	100.00	#
 10	MATERIALIZED	t2i	index	it2i2	#	#	#	5	100.00	#
-8	MATERIALIZED	t2i	range	it2i1,it2i3	#	#	#	5	100.00	#
+8	MATERIALIZED	t2i	index	it2i1,it2i3	#	#	#	5	100.00	#
 NULL	UNION RESULT	<union1,7>	ALL	NULL	#	#	#	NULL	NULL	#
 Warnings:
 Note	1003	(/* select#1 */ select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (/* select#2 */ select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (/* select#3 */ select `test`.`t3`.`c2` from `test`.`t3` where `test`.`t3`.`c2` like '%02' ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where `test`.`t2`.`b2` = `<subquery3>`.`c2`)))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (/* select#4 */ select `test`.`t3`.`c2` from `test`.`t3` where `test`.`t3`.`c2` like '%03' ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where `test`.`t2`.`b2` = `<subquery4>`.`c2`)))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where `test`.`t1`.`a1` = `<subquery2>`.`b1` and `test`.`t1`.`a2` = `<subquery2>`.`b2`)))) and <expr_cache><`test`.`t1`.`a1`,`test`.`t1`.`a2`>(<in_optimizer>((`test`.`t1`.`a1`,`test`.`t1`.`a2`),(`test`.`t1`.`a1`,`test`.`t1`.`a2`) in ( <materialize> (/* select#5 */ select `test`.`t3`.`c1`,`test`.`t3`.`c2` from `test`.`t3` where <expr_cache><`test`.`t3`.`c1`,`test`.`t3`.`c2`>(<in_optimizer>((`test`.`t3`.`c1`,`test`.`t3`.`c2`),(`test`.`t3`.`c1`,`test`.`t3`.`c2`) in ( <materialize> (/* select#6 */ select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where `test`.`t2i`.`b2` > '0' ), <primary_index_lookup>(`test`.`t3`.`c1` in <temporary table> on distinct_key where `test`.`t3`.`c1` = `<subquery6>`.`b1` and `test`.`t3`.`c2` = `<subquery6>`.`b2`)))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where `test`.`t1`.`a1` = `<subquery5>`.`c1` and `test`.`t1`.`a2` = `<subquery5>`.`c2`))))) union (/* select#7 */ select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` where <expr_cache><`test`.`t1i`.`a1`,`test`.`t1i`.`a2`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (/* select#8 */ select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where `test`.`t2i`.`b1` > '0' ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where `test`.`t1i`.`a1` = `<subquery8>`.`b1` and `test`.`t1i`.`a2` = `<subquery8>`.`b2`)))) and <expr_cache><`test`.`t1i`.`a1`,`test`.`t1i`.`a2`>(<in_optimizer>((`test`.`t1i`.`a1`,`test`.`t1i`.`a2`),(`test`.`t1i`.`a1`,`test`.`t1i`.`a2`) in ( <materialize> (/* select#9 */ select `test`.`t3i`.`c1`,`test`.`t3i`.`c2` from `test`.`t3i` where <expr_cache><`test`.`t3i`.`c1`,`test`.`t3i`.`c2`>(<in_optimizer>((`test`.`t3i`.`c1`,`test`.`t3i`.`c2`),(`test`.`t3i`.`c1`,`test`.`t3i`.`c2`) in ( <materialize> (/* select#10 */ select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where `test`.`t2i`.`b2` > '0' ), <primary_index_lookup>(`test`.`t3i`.`c1` in <temporary table> on distinct_key where `test`.`t3i`.`c1` = `<subquery10>`.`b1` and `test`.`t3i`.`c2` = `<subquery10>`.`b2`)))) ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where `test`.`t1i`.`a1` = `<subquery9>`.`c1` and `test`.`t1i`.`a2` = `<subquery9>`.`c2`)))))
@@ -1534,8 +1534,7 @@ SET @@optimizer_switch='semijoin=on,materialization=on';
 EXPLAIN SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	t2	range	PRIMARY	PRIMARY	4	NULL	2	Using index condition; Using where; Rowid-ordered scan
+1	PRIMARY	t2	ALL	PRIMARY	NULL	NULL	NULL	2	Using where; FirstMatch(t1); Using join buffer (flat, BNL join)
 SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
 pk
 2
@@ -1889,8 +1888,8 @@ WHERE alias4.c = alias3.b
 );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
-3	MATERIALIZED	alias3	ALL	NULL	NULL	NULL	NULL	2	Using where
-3	MATERIALIZED	alias4	ref	c	c	11	test.alias3.b	2	Using where; Using index
+3	MATERIALIZED	alias3	ALL	NULL	NULL	NULL	NULL	2	
+3	MATERIALIZED	alias4	index	c	c	11	NULL	2	Using where; Using index; Using join buffer (flat, BNL join)
 DROP TABLE t1,t2;
 #
 # BUG#928048: Query containing IN subquery with OR in the where clause returns a wrong result
@@ -1953,11 +1952,11 @@ EXPLAIN EXTENDED
 SELECT * FROM t1
 WHERE a IN (SELECT MAX(c) FROM t2) AND b=7 AND (a IS NULL OR a=b);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	4	const	1	100.00	
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
+1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	4	const	1	100.00	Using where
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from  <materialize> (/* select#2 */ select max(`test`.`t2`.`c`) from `test`.`t2` having `MAX(c)` is null or `MAX(c)` = 7) join `test`.`t1` where `test`.`t1`.`b` = 7 and `test`.`t1`.`a` = `<subquery2>`.`MAX(c)` and (<cache>(/*always not null*/ 1 is null) or `<subquery2>`.`MAX(c)` = 7)
+Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from  <materialize> (/* select#2 */ select max(`test`.`t2`.`c`) from `test`.`t2` having `MAX(c)` is null or `MAX(c)` = 7) join `test`.`t1` where `test`.`t1`.`b` = 7 and `<subquery2>`.`MAX(c)` = `test`.`t1`.`a` and (`test`.`t1`.`a` is null or `test`.`t1`.`a` = 7)
 SELECT * FROM t1
 WHERE a IN (SELECT MAX(c) FROM t2) AND b=7 AND (a IS NULL OR a=b);
 a	b
@@ -1966,8 +1965,8 @@ EXPLAIN
 SELECT * FROM t1
 WHERE a IN (SELECT MAX(c) FROM t2 WHERE c < 4) AND b=7 AND (a IS NULL OR a=b);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	4	const	1	
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	Using where
+1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	4	const	1	Using where
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	Using where
 SELECT * FROM t1
 WHERE a IN (SELECT MAX(c) FROM t2 WHERE c < 4) AND b=7 AND (a IS NULL OR a=b);
@@ -2241,9 +2240,8 @@ WHERE EXISTS ( SELECT * FROM t1 AS sq2
 WHERE sq1.`pk` IN ( SELECT f1 FROM t1 ) AND sq2.f1 = sq1.f1 );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	sq1	ALL	NULL	NULL	NULL	NULL	2	Using where
-2	DEPENDENT SUBQUERY	sq2	ALL	NULL	NULL	NULL	NULL	2	Using where
-2	DEPENDENT SUBQUERY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	
-3	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	2	
+2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	Using where; FirstMatch
+2	DEPENDENT SUBQUERY	sq2	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
 # this checks the result set above
 set optimizer_switch= 'materialization=off,semijoin=off';
 SELECT sq1.f2    FROM t1 AS sq1
@@ -2275,10 +2273,9 @@ WHERE EXISTS ( SELECT * FROM t2, t3
 WHERE i3 = i2 AND f1 IN ( SELECT f3 FROM t3 ) );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
-2	DEPENDENT SUBQUERY	t2	index	i2	i2	5	NULL	3	100.00	Using where; Using index
-2	DEPENDENT SUBQUERY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
+2	DEPENDENT SUBQUERY	t3	ALL	NULL	NULL	NULL	NULL	8	100.00	Using where; FirstMatch
+2	DEPENDENT SUBQUERY	t2	index	i2	i2	5	NULL	3	100.00	Using where; Using index; Using join buffer (flat, BNL join)
 2	DEPENDENT SUBQUERY	t3	ref	i3	i3	5	test.t2.i2	2	100.00	Using index
-3	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	8	100.00	
 Warnings:
 Note	1276	Field or reference 'test.t1.f1' of SELECT #2 was resolved in SELECT #1
 Note	1003	/* select#1 */ select `test`.`t1`.`f1` AS `f1` from `test`.`t1` where <expr_cache><`test`.`t1`.`f1`>(exists(/* select#2 */ select 1 from `test`.`t2` semi join (`test`.`t3`) join `test`.`t3` where `test`.`t3`.`i3` = `test`.`t2`.`i2` and `test`.`t1`.`f1` = `test`.`t3`.`f3` limit 1))
@@ -2314,9 +2311,8 @@ SELECT pk, f1, ( SELECT COUNT(*) FROM t2
 WHERE t1.pk IN ( SELECT f2 FROM t2 ) ) AS sq FROM t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	5	100.00	
-2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	5	100.00	
-2	DEPENDENT SUBQUERY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-3	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	5	100.00	
+2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	5	100.00	Using where; FirstMatch
+2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	5	100.00	Using join buffer (flat, BNL join)
 Warnings:
 Note	1276	Field or reference 'test.t1.pk' of SELECT #2 was resolved in SELECT #1
 Note	1003	/* select#1 */ select `test`.`t1`.`pk` AS `pk`,`test`.`t1`.`f1` AS `f1`,<expr_cache><`test`.`t1`.`pk`>((/* select#2 */ select count(0) from `test`.`t2` semi join (`test`.`t2`) where `test`.`t1`.`pk` = `test`.`t2`.`f2`)) AS `sq` from `test`.`t1`
@@ -2450,8 +2446,7 @@ explain
 SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	9	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	Using where
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	3	Using where; FirstMatch(t1); Using join buffer (flat, BNL join)
 SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
 1
 1
@@ -2462,8 +2457,8 @@ alter table t1 add key(id);
 explain
 SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	
-1	PRIMARY	t1	ref	id	id	4	test.t2.i1	2	Using index
+1	PRIMARY	t1	index	id	id	4	NULL	9	Using index
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	Using where
 SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
 1
@@ -2519,8 +2514,8 @@ INSERT INTO t2 VALUES  (11,11),(12,12),(13,13);
 CREATE VIEW v1 AS SELECT t2.i1 FROM t2 where t2.i1 = t2.i2;
 explain SELECT 1 FROM t1 where t1.id IN (SELECT v1.i1 from v1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	
-1	PRIMARY	t1	ref	id	id	4	test.t2.i1	2	Using index
+1	PRIMARY	t1	index	id	id	4	NULL	9	Using index
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	Using where
 SELECT 1 FROM t1 where t1.id IN (SELECT v1.i1 from v1);
 1
@@ -2817,6 +2812,7 @@ PRIMARY KEY (pk)
 INSERT INTO t1 VALUES (1,'o','ffff','ffff','ffoo'),(2,'f','ffff','ffff','ffff');
 CREATE TABLE t2 LIKE t1;
 INSERT INTO t2 VALUES (1,'i','iiii','iiii','iiii'),(2,'f','ffff','ffff','ffff');
+insert into t2 select -seq,"","","","" from seq_1_to_10;
 SET @@optimizer_switch='default,semijoin=on,materialization=on';
 EXPLAIN SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
diff --git a/mysql-test/main/subselect_mat.test b/mysql-test/main/subselect_mat.test
index cacafb0000f..58548d18caa 100644
--- a/mysql-test/main/subselect_mat.test
+++ b/mysql-test/main/subselect_mat.test
@@ -2,7 +2,7 @@
 # Hash semi-join regression tests
 # (WL#1110: Subquery optimization: materialization)
 #
-
+--source include/have_sequence.inc
 
 # force the use of materialization
 set @subselect_mat_test_optimizer_switch_value='materialization=on,in_to_exists=off,semijoin=off';
@@ -111,6 +111,7 @@ INSERT INTO t1 VALUES (1,'o','ffff','ffff','ffoo'),(2,'f','ffff','ffff','ffff');
 
 CREATE TABLE t2 LIKE t1;
 INSERT INTO t2 VALUES (1,'i','iiii','iiii','iiii'),(2,'f','ffff','ffff','ffff');
+insert into t2 select -seq,"","","","" from seq_1_to_10;
 
 SET @@optimizer_switch='default,semijoin=on,materialization=on';
 EXPLAIN SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
diff --git a/mysql-test/main/subselect_mat_cost.result b/mysql-test/main/subselect_mat_cost.result
index 66d48b549c4..d46fb616d5e 100644
--- a/mysql-test/main/subselect_mat_cost.result
+++ b/mysql-test/main/subselect_mat_cost.result
@@ -59,15 +59,15 @@ set @@optimizer_switch = 'in_to_exists=on,semijoin=on,materialization=on,partial
 Q1.1m:
 MATERIALIZATION: there are too many rows in the outer query
 to be looked up in the inner table.
-EXPLAIN
+set statement optimizer_cache_hit_ratio=20 for EXPLAIN
 SELECT Name FROM Country
 WHERE (Code IN (select Country from City where City.Population > 100000) OR
 Name LIKE 'L%') AND
 surfacearea > 1000000;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	Country	ALL	Name,SurfaceArea	NULL	NULL	NULL	239	Using where
-2	MATERIALIZED	City	ALL	Population,Country	NULL	NULL	NULL	4079	Using where
-SELECT Name FROM Country
+3	MATERIALIZED	City	ALL	Population,Country	NULL	NULL	NULL	4079	Using where
+set statement optimizer_cache_hit_ratio=20 for SELECT Name FROM Country
 WHERE (Code IN (select Country from City where City.Population > 100000) OR
 Name LIKE 'L%') AND
 surfacearea > 1000000;
@@ -133,9 +133,9 @@ Country.SurfaceArea < 3000 AND Country.SurfaceArea > 10 AND
 (select Language from CountryLanguage where Percentage > 50) OR
 City.name LIKE '%Island%');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	Country	ALL	PRIMARY,SurfaceArea	NULL	NULL	NULL	239	Using where
+1	PRIMARY	Country	range	PRIMARY,SurfaceArea	SurfaceArea	4	NULL	47	Using index condition; Rowid-ordered scan
 1	PRIMARY	City	ref	Country	Country	3	world.Country.Code	17	Using where
-2	MATERIALIZED	CountryLanguage	ALL	Percentage,Language	NULL	NULL	NULL	984	Using where
+2	MATERIALIZED	CountryLanguage	range	Percentage,Language	Percentage	4	NULL	197	Using index condition; Rowid-ordered scan
 SELECT *
 FROM Country, City
 WHERE City.Country = Country.Code AND
@@ -158,7 +158,7 @@ Country.SurfaceArea < 3000 AND Country.SurfaceArea > 10 AND
 (select Language from CountryLanguage where Percentage > 50) OR
 Country.name LIKE '%Island%');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	Country	ALL	PRIMARY,SurfaceArea	NULL	NULL	NULL	239	Using where
+1	PRIMARY	Country	range	PRIMARY,SurfaceArea	SurfaceArea	4	NULL	47	Using index condition; Using where; Rowid-ordered scan
 1	PRIMARY	City	ref	Country	Country	3	world.Country.Code	17	
 2	DEPENDENT SUBQUERY	CountryLanguage	index_subquery	Percentage,Language	Language	30	func	2	Using where
 SELECT *
@@ -203,7 +203,7 @@ OR
 (Country.Code, City.Name) IN
 (select Country, Language from CountryLanguage));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	Country	ALL	PRIMARY,SurfaceArea	NULL	NULL	NULL	239	Using where
+1	PRIMARY	Country	range	PRIMARY,SurfaceArea	SurfaceArea	4	NULL	73	Using index condition; Rowid-ordered scan
 1	PRIMARY	City	ref	Country	Country	3	world.Country.Code	17	Using where
 3	MATERIALIZED	CountryLanguage	index	PRIMARY,Language	PRIMARY	33	NULL	984	Using index
 2	DEPENDENT SUBQUERY	CountryLanguage	unique_subquery	PRIMARY,Percentage,Language	PRIMARY	33	func,func	1	Using where
diff --git a/mysql-test/main/subselect_mat_cost.test b/mysql-test/main/subselect_mat_cost.test
index 8fe38849735..12263e75cfc 100644
--- a/mysql-test/main/subselect_mat_cost.test
+++ b/mysql-test/main/subselect_mat_cost.test
@@ -73,13 +73,13 @@ set @@optimizer_switch = 'in_to_exists=on,semijoin=on,materialization=on,partial
 -- echo Q1.1m:
 -- echo MATERIALIZATION: there are too many rows in the outer query
 -- echo to be looked up in the inner table.
-EXPLAIN
+set statement optimizer_cache_hit_ratio=20 for EXPLAIN
 SELECT Name FROM Country
 WHERE (Code IN (select Country from City where City.Population > 100000) OR
        Name LIKE 'L%') AND
       surfacearea > 1000000;
 
-SELECT Name FROM Country
+set statement optimizer_cache_hit_ratio=20 for SELECT Name FROM Country
 WHERE (Code IN (select Country from City where City.Population > 100000) OR
        Name LIKE 'L%') AND
       surfacearea > 1000000;
@@ -210,7 +210,6 @@ WHERE Code NOT IN (SELECT Country FROM CountryLanguage WHERE Language = 'English
 -- echo MATERIALIZATION because the outer query filters less rows than Q5-a,
 -- echo so there are more lookups.
 
-
 set statement optimizer_switch='rowid_filter=off' for
 EXPLAIN
 SELECT Country.Name
@@ -369,6 +368,7 @@ drop index CountryCapital on Country;
 # TODO: the cost estimates for subqueries in the HAVING clause need to be changed
 # to take into account that the subquery predicate is executed #times ~ to the
 # number of groups, not number of rows
+
 EXPLAIN
 SELECT City.Name, City.Population
 FROM City JOIN Country ON City.Country = Country.Code
diff --git a/mysql-test/main/subselect_mat_cost_bugs.result b/mysql-test/main/subselect_mat_cost_bugs.result
index 185a99672e6..14522a24950 100644
--- a/mysql-test/main/subselect_mat_cost_bugs.result
+++ b/mysql-test/main/subselect_mat_cost_bugs.result
@@ -197,7 +197,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	<derived2>	ALL	NULL	NULL	NULL	NULL	2	Using where; Using filesort
 1	PRIMARY	alias1	eq_ref	PRIMARY	PRIMARY	4	alias2.f3	1	Using index
 3	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	
-3	DEPENDENT SUBQUERY	t1	range	PRIMARY	PRIMARY	4	NULL	2	Using where; Using index; Using join buffer (flat, BNL join)
+3	DEPENDENT SUBQUERY	t1	index	PRIMARY	PRIMARY	4	NULL	2	Using where; Using index; Using join buffer (flat, BNL join)
 2	DERIVED	t2	ALL	NULL	NULL	NULL	NULL	2	
 SELECT alias2.f2 AS field1
 FROM t1 AS alias1 JOIN ( SELECT * FROM t2 ) AS alias2 ON alias2.f3 = alias1.f1
@@ -363,8 +363,8 @@ WHERE t4.a >= t3.b
 AND a = SOME (SELECT b FROM t5));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	2	Using where
-2	DEPENDENT SUBQUERY	t5	index	c	c	10	NULL	2	Using where; Using index; Start temporary
-2	DEPENDENT SUBQUERY	t4	eq_ref	PRIMARY	PRIMARY	4	test.t5.b	1	Using where; End temporary
+2	DEPENDENT SUBQUERY	t4	ALL	PRIMARY	NULL	NULL	NULL	2	Using where
+2	DEPENDENT SUBQUERY	t5	index	c	c	10	NULL	2	Using where; Using index; Start temporary; End temporary; Using join buffer (flat, BNL join)
 SELECT *
 FROM t3
 WHERE t3.b > ALL (
diff --git a/mysql-test/main/subselect_no_exists_to_in.result b/mysql-test/main/subselect_no_exists_to_in.result
index 18cc982c565..429696ebeec 100644
--- a/mysql-test/main/subselect_no_exists_to_in.result
+++ b/mysql-test/main/subselect_no_exists_to_in.result
@@ -1453,21 +1453,21 @@ a
 4
 explain extended select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t2	index	PRIMARY	PRIMARY	4	NULL	4	100.00	Using index
-1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	test.t2.a	1	100.00	Using where
+1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	4	100.00	Using where
+1	PRIMARY	t2	eq_ref	PRIMARY	PRIMARY	4	test.t1.a	1	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t2` where `test`.`t1`.`a` = `test`.`t2`.`a` and `test`.`t1`.`b` <> 30
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t2` where `test`.`t2`.`a` = `test`.`t1`.`a` and `test`.`t1`.`b` <> 30
 select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
 a
 2
 3
 explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t2	index	PRIMARY	PRIMARY	4	NULL	4	100.00	Using index
-1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	test.t2.a	1	100.00	
-1	PRIMARY	t3	index	PRIMARY	PRIMARY	4	NULL	3	75.00	Using where; Using index; Using join buffer (flat, BNL join)
+1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	4	100.00	Using where
+1	PRIMARY	t2	eq_ref	PRIMARY	PRIMARY	4	test.t1.a	1	100.00	Using index
+1	PRIMARY	t3	eq_ref	PRIMARY	PRIMARY	4	test.t1.b	1	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t3` join `test`.`t2` where `test`.`t3`.`a` = `test`.`t1`.`b` and `test`.`t1`.`a` = `test`.`t2`.`a`
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t3` join `test`.`t2` where `test`.`t3`.`a` = `test`.`t1`.`b` and `test`.`t2`.`a` = `test`.`t1`.`a`
 drop table t1, t2, t3;
 create table t1 (a int, b int, index a (a,b));
 create table t2 (a int, index a (a));
@@ -1507,7 +1507,7 @@ a
 explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t2	index	a	a	5	NULL	4	100.00	Using where; Using index
-1	PRIMARY	t3	range	a	a	5	NULL	3	100.00	Using where; Using index
+1	PRIMARY	t3	index	a	a	5	NULL	3	100.00	Using where; Using index
 1	PRIMARY	t1	ref	a	a	10	test.t2.a,test.t3.a	116	100.00	Using index; FirstMatch(t2)
 Warnings:
 Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1` join `test`.`t3`) where `test`.`t1`.`b` = `test`.`t3`.`a` and `test`.`t1`.`a` = `test`.`t2`.`a`
@@ -1615,21 +1615,21 @@ a3	1
 explain extended select s1, s1 NOT IN (SELECT s1 FROM t2) from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
-2	SUBQUERY	t2	index_subquery	s1	s1	6	func	2	100.00	Using index; Full scan on NULL key
+2	DEPENDENT SUBQUERY	t2	index	s1	s1	6	NULL	2	100.00	Using where; Using index
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1`
+Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(/* select#2 */ select `test`.`t2`.`s1` from `test`.`t2` where trigcond(<cache>(`test`.`t1`.`s1`) = `test`.`t2`.`s1` or `test`.`t2`.`s1` is null) having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1`
 explain extended select s1, s1 = ANY (SELECT s1 FROM t2) from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
-2	SUBQUERY	t2	index_subquery	s1	s1	6	func	2	100.00	Using index; Full scan on NULL key
+2	DEPENDENT SUBQUERY	t2	index	s1	s1	6	NULL	2	100.00	Using where; Using index
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null))))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1`
+Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(/* select#2 */ select `test`.`t2`.`s1` from `test`.`t2` where trigcond(<cache>(`test`.`t1`.`s1`) = `test`.`t2`.`s1` or `test`.`t2`.`s1` is null) having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1`
 explain extended select s1, s1 <> ALL (SELECT s1 FROM t2) from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
-2	SUBQUERY	t2	index_subquery	s1	s1	6	func	2	100.00	Using index; Full scan on NULL key
+2	DEPENDENT SUBQUERY	t2	index	s1	s1	6	NULL	2	100.00	Using where; Using index
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1`
+Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(/* select#2 */ select `test`.`t2`.`s1` from `test`.`t2` where trigcond(<cache>(`test`.`t1`.`s1`) = `test`.`t2`.`s1` or `test`.`t2`.`s1` is null) having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1`
 explain extended select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
@@ -2422,15 +2422,17 @@ a
 3
 DROP TABLE t1;
 create table t1 (a int, b int);
-insert into t1 values (1,2),(3,4);
+insert into t1 values (1,2),(3,4),(5,6),(7,8);
 select * from t1 up where exists (select * from t1 where t1.a=up.a);
 a	b
 1	2
 3	4
+5	6
+7	8
 explain extended select * from t1 up where exists (select * from t1 where t1.a=up.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	up	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
-2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+1	PRIMARY	up	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
+2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 Warnings:
 Note	1276	Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1
 Note	1003	/* select#1 */ select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where <expr_cache><`test`.`up`.`a`>(exists(/* select#2 */ select 1 from `test`.`t1` where `test`.`t1`.`a` = `test`.`up`.`a` limit 1))
@@ -3103,7 +3105,7 @@ retailerID	statusID	changed
 drop table t1;
 create table t1(a int, primary key (a));
 insert into t1 values (10);
-create table t2 (a int primary key, b varchar(32), c int, unique key b(c, b));
+create table t2 (a int primary key, b varchar(32), c int, unique key cb(c, b));
 insert into t2(a, c, b) values (1,10,'359'), (2,10,'35988'), (3,10,'35989');
 insert into t2(a, c, b) values (4,10,'360'), (5,10,'35998'), (6,10,'35999');
 analyze table t1;
@@ -3116,7 +3118,7 @@ ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	PRIMARY	NULL	NULL	NULL	1	
 1	PRIMARY	r	const	PRIMARY	PRIMARY	4	const	1	
-2	SUBQUERY	t2	range	b	b	40	NULL	3	Using where
+2	SUBQUERY	t2	ref	cb	cb	5	const	1	Using where
 SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r
 ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
             ORDER BY t2.c DESC, t2.b DESC LIMIT 1) WHERE t1.a = 10;
@@ -3128,7 +3130,7 @@ ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	PRIMARY	NULL	NULL	NULL	1	
 1	PRIMARY	r	const	PRIMARY	PRIMARY	4	const	1	
-2	SUBQUERY	t2	range	b	b	40	NULL	3	Using index condition
+2	SUBQUERY	t2	ref	cb	cb	5	const	1	Using index condition; Using where
 SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r
 ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
             ORDER BY t2.c, t2.b LIMIT 1) WHERE t1.a = 10;
@@ -4441,7 +4443,7 @@ out_a	MIN(b)
 DROP TABLE t1;
 CREATE TABLE t1 (a INT);
 CREATE TABLE t2 (a INT);
-INSERT INTO t1 VALUES (1),(2);
+INSERT INTO t1 VALUES (1),(2),(3),(4);
 INSERT INTO t2 VALUES (1),(2);
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
 2
@@ -4450,7 +4452,7 @@ SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
 EXPLAIN EXTENDED
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 Warnings:
 Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
@@ -4459,7 +4461,7 @@ EXPLAIN EXTENDED
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a) UNION
 (SELECT 1 FROM t2 WHERE t1.a = t2.a));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 3	DEPENDENT UNION	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
@@ -4543,15 +4545,15 @@ SET @save_join_cache_level=@@join_cache_level;
 SET join_cache_level=0;
 EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 GROUP BY a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	4	const	1	100.00	
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using temporary
 Warnings:
 Note	1003	/* select#1 */ select 1 AS `1` from  <materialize> (/* select#2 */ select min(`test`.`t1`.`a`) from `test`.`t1` group by `test`.`t1`.`a`) join `test`.`t1` where `<subquery2>`.`min(a)` = 1
 EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 WHERE a > 3 GROUP BY a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	4	const	1	100.00	
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using temporary
 Warnings:
 Note	1003	/* select#1 */ select 1 AS `1` from  <materialize> (/* select#2 */ select min(`test`.`t1`.`a`) from `test`.`t1` where `test`.`t1`.`a` > 3 group by `test`.`t1`.`a`) join `test`.`t1` where `<subquery2>`.`min(a)` = 1
@@ -6080,8 +6082,7 @@ WHERE col_varchar_nokey IN
 (SELECT col_varchar_key FROM it1 WHERE col_int_key IS NULL);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	ot	system	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	it1	ref	idx_cvk_cik	idx_cvk_cik	9	const,const	1	Using where; Using index
+1	PRIMARY	it1	ref	idx_cvk_cik	idx_cvk_cik	9	const,const	1	Using where; Using index; FirstMatch(ot)
 SELECT col_int_nokey FROM ot 
 WHERE col_varchar_nokey IN 
 (SELECT col_varchar_key FROM it1 WHERE col_int_key IS NULL);
@@ -6093,8 +6094,7 @@ WHERE (col_varchar_nokey, 'x') IN
 (SELECT col_varchar_key, col_varchar_key2 FROM it2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	ot	system	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func,func	1	
-2	MATERIALIZED	it2	ref	idx_cvk_cvk2_cik,idx_cvk_cik	idx_cvk_cvk2_cik	8	const,const	1	Using where; Using index
+1	PRIMARY	it2	ref	idx_cvk_cvk2_cik,idx_cvk_cik	idx_cvk_cvk2_cik	8	const,const	1	Using where; Using index; FirstMatch(ot)
 SELECT col_int_nokey FROM ot
 WHERE (col_varchar_nokey, 'x') IN
 (SELECT col_varchar_key, col_varchar_key2 FROM it2);
diff --git a/mysql-test/main/subselect_no_mat.result b/mysql-test/main/subselect_no_mat.result
index 0aa5f00a149..86b8e075f01 100644
--- a/mysql-test/main/subselect_no_mat.result
+++ b/mysql-test/main/subselect_no_mat.result
@@ -1456,21 +1456,21 @@ a
 4
 explain extended select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t2	index	PRIMARY	PRIMARY	4	NULL	4	100.00	Using index
-1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	test.t2.a	1	100.00	Using where
+1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	4	100.00	Using where
+1	PRIMARY	t2	eq_ref	PRIMARY	PRIMARY	4	test.t1.a	1	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t2` where `test`.`t1`.`a` = `test`.`t2`.`a` and `test`.`t1`.`b` <> 30
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t2` where `test`.`t2`.`a` = `test`.`t1`.`a` and `test`.`t1`.`b` <> 30
 select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
 a
 2
 3
 explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t2	index	PRIMARY	PRIMARY	4	NULL	4	100.00	Using index
-1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	test.t2.a	1	100.00	
-1	PRIMARY	t3	index	PRIMARY	PRIMARY	4	NULL	3	75.00	Using where; Using index; Using join buffer (flat, BNL join)
+1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	4	100.00	Using where
+1	PRIMARY	t2	eq_ref	PRIMARY	PRIMARY	4	test.t1.a	1	100.00	Using index
+1	PRIMARY	t3	eq_ref	PRIMARY	PRIMARY	4	test.t1.b	1	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t3` join `test`.`t2` where `test`.`t3`.`a` = `test`.`t1`.`b` and `test`.`t1`.`a` = `test`.`t2`.`a`
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t3` join `test`.`t2` where `test`.`t3`.`a` = `test`.`t1`.`b` and `test`.`t2`.`a` = `test`.`t1`.`a`
 drop table t1, t2, t3;
 create table t1 (a int, b int, index a (a,b));
 create table t2 (a int, index a (a));
@@ -1510,7 +1510,7 @@ a
 explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t2	index	a	a	5	NULL	4	100.00	Using where; Using index
-1	PRIMARY	t3	range	a	a	5	NULL	3	100.00	Using where; Using index
+1	PRIMARY	t3	index	a	a	5	NULL	3	100.00	Using where; Using index
 1	PRIMARY	t1	ref	a	a	10	test.t2.a,test.t3.a	116	100.00	Using index; FirstMatch(t2)
 Warnings:
 Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1` join `test`.`t3`) where `test`.`t1`.`b` = `test`.`t3`.`a` and `test`.`t1`.`a` = `test`.`t2`.`a`
@@ -1618,21 +1618,21 @@ a3	1
 explain extended select s1, s1 NOT IN (SELECT s1 FROM t2) from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
-2	SUBQUERY	t2	index_subquery	s1	s1	6	func	2	100.00	Using index; Full scan on NULL key
+2	DEPENDENT SUBQUERY	t2	index	s1	s1	6	NULL	2	100.00	Using where; Using index
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1`
+Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(/* select#2 */ select `test`.`t2`.`s1` from `test`.`t2` where trigcond(<cache>(`test`.`t1`.`s1`) = `test`.`t2`.`s1` or `test`.`t2`.`s1` is null) having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1`
 explain extended select s1, s1 = ANY (SELECT s1 FROM t2) from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
-2	SUBQUERY	t2	index_subquery	s1	s1	6	func	2	100.00	Using index; Full scan on NULL key
+2	DEPENDENT SUBQUERY	t2	index	s1	s1	6	NULL	2	100.00	Using where; Using index
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null))))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1`
+Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(/* select#2 */ select `test`.`t2`.`s1` from `test`.`t2` where trigcond(<cache>(`test`.`t1`.`s1`) = `test`.`t2`.`s1` or `test`.`t2`.`s1` is null) having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1`
 explain extended select s1, s1 <> ALL (SELECT s1 FROM t2) from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
-2	SUBQUERY	t2	index_subquery	s1	s1	6	func	2	100.00	Using index; Full scan on NULL key
+2	DEPENDENT SUBQUERY	t2	index	s1	s1	6	NULL	2	100.00	Using where; Using index
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1`
+Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,<exists>(/* select#2 */ select `test`.`t2`.`s1` from `test`.`t2` where trigcond(<cache>(`test`.`t1`.`s1`) = `test`.`t2`.`s1` or `test`.`t2`.`s1` is null) having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1`
 explain extended select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
@@ -2425,15 +2425,17 @@ a
 3
 DROP TABLE t1;
 create table t1 (a int, b int);
-insert into t1 values (1,2),(3,4);
+insert into t1 values (1,2),(3,4),(5,6),(7,8);
 select * from t1 up where exists (select * from t1 where t1.a=up.a);
 a	b
 1	2
 3	4
+5	6
+7	8
 explain extended select * from t1 up where exists (select * from t1 where t1.a=up.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	up	ALL	NULL	NULL	NULL	NULL	2	100.00	
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; FirstMatch(up); Using join buffer (flat, BNL join)
+1	PRIMARY	up	ALL	NULL	NULL	NULL	NULL	4	100.00	
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; FirstMatch(up); Using join buffer (flat, BNL join)
 Warnings:
 Note	1276	Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1
 Note	1003	select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` semi join (`test`.`t1`) where `test`.`t1`.`a` = `test`.`up`.`a`
@@ -3105,7 +3107,7 @@ retailerID	statusID	changed
 drop table t1;
 create table t1(a int, primary key (a));
 insert into t1 values (10);
-create table t2 (a int primary key, b varchar(32), c int, unique key b(c, b));
+create table t2 (a int primary key, b varchar(32), c int, unique key cb(c, b));
 insert into t2(a, c, b) values (1,10,'359'), (2,10,'35988'), (3,10,'35989');
 insert into t2(a, c, b) values (4,10,'360'), (5,10,'35998'), (6,10,'35999');
 analyze table t1;
@@ -3118,7 +3120,7 @@ ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	PRIMARY	NULL	NULL	NULL	1	
 1	PRIMARY	r	const	PRIMARY	PRIMARY	4	const	1	
-2	SUBQUERY	t2	range	b	b	40	NULL	3	Using where
+2	SUBQUERY	t2	ref	cb	cb	5	const	1	Using where
 SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r
 ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
             ORDER BY t2.c DESC, t2.b DESC LIMIT 1) WHERE t1.a = 10;
@@ -3130,7 +3132,7 @@ ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	PRIMARY	NULL	NULL	NULL	1	
 1	PRIMARY	r	const	PRIMARY	PRIMARY	4	const	1	
-2	SUBQUERY	t2	range	b	b	40	NULL	3	Using index condition
+2	SUBQUERY	t2	ref	cb	cb	5	const	1	Using index condition; Using where
 SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r
 ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
             ORDER BY t2.c, t2.b LIMIT 1) WHERE t1.a = 10;
@@ -4228,8 +4230,8 @@ INSERT INTO t2 VALUES (7), (5), (1), (3);
 SELECT id, st FROM t1
 WHERE st IN ('GA','FL') AND EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id);
 id	st
-3	FL
 1	GA
+3	FL
 7	FL
 SELECT id, st FROM t1
 WHERE st IN ('GA','FL') AND EXISTS(SELECT 1 FROM t2 WHERE t2.id=t1.id)
@@ -4441,7 +4443,7 @@ out_a	MIN(b)
 DROP TABLE t1;
 CREATE TABLE t1 (a INT);
 CREATE TABLE t2 (a INT);
-INSERT INTO t1 VALUES (1),(2);
+INSERT INTO t1 VALUES (1),(2),(3),(4);
 INSERT INTO t2 VALUES (1),(2);
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
 2
@@ -4450,7 +4452,7 @@ SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
 EXPLAIN EXTENDED
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; FirstMatch(t1); Using join buffer (flat, BNL join)
 Warnings:
 Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
@@ -4459,7 +4461,7 @@ EXPLAIN EXTENDED
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a) UNION
 (SELECT 1 FROM t2 WHERE t1.a = t2.a));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 3	DEPENDENT UNION	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
@@ -5687,9 +5689,9 @@ WHERE (ot1.a,ot4.a) IN (SELECT it2.a,it3.a
 FROM it2,it3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	ot1	ALL	NULL	NULL	NULL	NULL	2	
-1	PRIMARY	it2	ALL	NULL	NULL	NULL	NULL	4	Using where; Start temporary; Using join buffer (flat, BNL join)
-1	PRIMARY	it3	ALL	NULL	NULL	NULL	NULL	6	Using join buffer (flat, BNL join)
-1	PRIMARY	ot4	ALL	NULL	NULL	NULL	NULL	8	Using where; End temporary; Using join buffer (flat, BNL join)
+1	PRIMARY	ot4	ALL	NULL	NULL	NULL	NULL	8	Using join buffer (flat, BNL join)
+1	PRIMARY	it2	ALL	NULL	NULL	NULL	NULL	4	Using where
+1	PRIMARY	it3	ALL	NULL	NULL	NULL	NULL	6	Using where; FirstMatch(ot4)
 DROP TABLE IF EXISTS ot1, ot4, it2, it3;
 #
 # Bug#729039: NULL keys used to evaluate subquery
diff --git a/mysql-test/main/subselect_no_opts.result b/mysql-test/main/subselect_no_opts.result
index e11c344cfb4..70bacb29b0a 100644
--- a/mysql-test/main/subselect_no_opts.result
+++ b/mysql-test/main/subselect_no_opts.result
@@ -1614,21 +1614,21 @@ a3	1
 explain extended select s1, s1 NOT IN (SELECT s1 FROM t2) from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
-2	SUBQUERY	t2	index_subquery	s1	s1	6	func	2	100.00	Using index; Full scan on NULL key
+2	DEPENDENT SUBQUERY	t2	index	s1	s1	6	NULL	2	100.00	Using where; Using index
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1`
+Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!(<in_optimizer>(`test`.`t1`.`s1`,<exists>(/* select#2 */ select `test`.`t2`.`s1` from `test`.`t2` where trigcond(<cache>(`test`.`t1`.`s1`) = `test`.`t2`.`s1` or `test`.`t2`.`s1` is null) having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1`
 explain extended select s1, s1 = ANY (SELECT s1 FROM t2) from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
-2	SUBQUERY	t2	index_subquery	s1	s1	6	func	2	100.00	Using index; Full scan on NULL key
+2	DEPENDENT SUBQUERY	t2	index	s1	s1	6	NULL	2	100.00	Using where; Using index
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1`
+Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,<in_optimizer>(`test`.`t1`.`s1`,<exists>(/* select#2 */ select `test`.`t2`.`s1` from `test`.`t2` where trigcond(<cache>(`test`.`t1`.`s1`) = `test`.`t2`.`s1` or `test`.`t2`.`s1` is null) having trigcond(`test`.`t2`.`s1` is null))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1`
 explain extended select s1, s1 <> ALL (SELECT s1 FROM t2) from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
-2	SUBQUERY	t2	index_subquery	s1	s1	6	func	2	100.00	Using index; Full scan on NULL key
+2	DEPENDENT SUBQUERY	t2	index	s1	s1	6	NULL	2	100.00	Using where; Using index
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1`
+Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!(<in_optimizer>(`test`.`t1`.`s1`,<exists>(/* select#2 */ select `test`.`t2`.`s1` from `test`.`t2` where trigcond(<cache>(`test`.`t1`.`s1`) = `test`.`t2`.`s1` or `test`.`t2`.`s1` is null) having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1`
 explain extended select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
@@ -2421,15 +2421,17 @@ a
 3
 DROP TABLE t1;
 create table t1 (a int, b int);
-insert into t1 values (1,2),(3,4);
+insert into t1 values (1,2),(3,4),(5,6),(7,8);
 select * from t1 up where exists (select * from t1 where t1.a=up.a);
 a	b
 1	2
 3	4
+5	6
+7	8
 explain extended select * from t1 up where exists (select * from t1 where t1.a=up.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	up	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
-2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+1	PRIMARY	up	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
+2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 Warnings:
 Note	1276	Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1
 Note	1003	/* select#1 */ select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where <in_optimizer>(`test`.`up`.`a`,<exists>(/* select#2 */ select `test`.`t1`.`a` from `test`.`t1` where <cache>(`test`.`up`.`a`) = `test`.`t1`.`a`))
@@ -3101,7 +3103,7 @@ retailerID	statusID	changed
 drop table t1;
 create table t1(a int, primary key (a));
 insert into t1 values (10);
-create table t2 (a int primary key, b varchar(32), c int, unique key b(c, b));
+create table t2 (a int primary key, b varchar(32), c int, unique key cb(c, b));
 insert into t2(a, c, b) values (1,10,'359'), (2,10,'35988'), (3,10,'35989');
 insert into t2(a, c, b) values (4,10,'360'), (5,10,'35998'), (6,10,'35999');
 analyze table t1;
@@ -3114,7 +3116,7 @@ ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	PRIMARY	NULL	NULL	NULL	1	
 1	PRIMARY	r	const	PRIMARY	PRIMARY	4	const	1	
-2	SUBQUERY	t2	range	b	b	40	NULL	3	Using where
+2	SUBQUERY	t2	ref	cb	cb	5	const	1	Using where
 SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r
 ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
             ORDER BY t2.c DESC, t2.b DESC LIMIT 1) WHERE t1.a = 10;
@@ -3126,7 +3128,7 @@ ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	PRIMARY	NULL	NULL	NULL	1	
 1	PRIMARY	r	const	PRIMARY	PRIMARY	4	const	1	
-2	SUBQUERY	t2	range	b	b	40	NULL	3	Using index condition
+2	SUBQUERY	t2	ref	cb	cb	5	const	1	Using index condition; Using where
 SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r
 ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
             ORDER BY t2.c, t2.b LIMIT 1) WHERE t1.a = 10;
@@ -4437,7 +4439,7 @@ out_a	MIN(b)
 DROP TABLE t1;
 CREATE TABLE t1 (a INT);
 CREATE TABLE t2 (a INT);
-INSERT INTO t1 VALUES (1),(2);
+INSERT INTO t1 VALUES (1),(2),(3),(4);
 INSERT INTO t2 VALUES (1),(2);
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
 2
@@ -4446,7 +4448,7 @@ SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
 EXPLAIN EXTENDED
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 Warnings:
 Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
@@ -4455,7 +4457,7 @@ EXPLAIN EXTENDED
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a) UNION
 (SELECT 1 FROM t2 WHERE t1.a = t2.a));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 3	DEPENDENT UNION	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
diff --git a/mysql-test/main/subselect_no_scache.result b/mysql-test/main/subselect_no_scache.result
index 8208e7a5379..76a04aba9a3 100644
--- a/mysql-test/main/subselect_no_scache.result
+++ b/mysql-test/main/subselect_no_scache.result
@@ -1455,21 +1455,21 @@ a
 4
 explain extended select * from t2 where t2.a in (select a from t1 where t1.b <> 30);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t2	index	PRIMARY	PRIMARY	4	NULL	4	100.00	Using index
-1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	test.t2.a	1	100.00	Using where
+1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	4	100.00	Using where
+1	PRIMARY	t2	eq_ref	PRIMARY	PRIMARY	4	test.t1.a	1	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t2` where `test`.`t1`.`a` = `test`.`t2`.`a` and `test`.`t1`.`b` <> 30
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t2` where `test`.`t2`.`a` = `test`.`t1`.`a` and `test`.`t1`.`b` <> 30
 select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
 a
 2
 3
 explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t2	index	PRIMARY	PRIMARY	4	NULL	4	100.00	Using index
-1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	test.t2.a	1	100.00	
-1	PRIMARY	t3	index	PRIMARY	PRIMARY	4	NULL	3	75.00	Using where; Using index; Using join buffer (flat, BNL join)
+1	PRIMARY	t1	ALL	PRIMARY	NULL	NULL	NULL	4	100.00	Using where
+1	PRIMARY	t2	eq_ref	PRIMARY	PRIMARY	4	test.t1.a	1	100.00	Using index
+1	PRIMARY	t3	eq_ref	PRIMARY	PRIMARY	4	test.t1.b	1	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t3` join `test`.`t2` where `test`.`t3`.`a` = `test`.`t1`.`b` and `test`.`t1`.`a` = `test`.`t2`.`a`
+Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t1` join `test`.`t3` join `test`.`t2` where `test`.`t3`.`a` = `test`.`t1`.`b` and `test`.`t2`.`a` = `test`.`t1`.`a`
 drop table t1, t2, t3;
 create table t1 (a int, b int, index a (a,b));
 create table t2 (a int, index a (a));
@@ -1509,7 +1509,7 @@ a
 explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t2	index	a	a	5	NULL	4	100.00	Using where; Using index
-1	PRIMARY	t3	range	a	a	5	NULL	3	100.00	Using where; Using index
+1	PRIMARY	t3	index	a	a	5	NULL	3	100.00	Using where; Using index
 1	PRIMARY	t1	ref	a	a	10	test.t2.a,test.t3.a	116	100.00	Using index; FirstMatch(t2)
 Warnings:
 Note	1003	select `test`.`t2`.`a` AS `a` from `test`.`t2` semi join (`test`.`t1` join `test`.`t3`) where `test`.`t1`.`b` = `test`.`t3`.`a` and `test`.`t1`.`a` = `test`.`t2`.`a`
@@ -1617,21 +1617,21 @@ a3	1
 explain extended select s1, s1 NOT IN (SELECT s1 FROM t2) from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
-2	SUBQUERY	t2	index_subquery	s1	s1	6	func	2	100.00	Using index; Full scan on NULL key
+2	DEPENDENT SUBQUERY	t2	index	s1	s1	6	NULL	2	100.00	Using where; Using index
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null))))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1`
+Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!(<in_optimizer>(`test`.`t1`.`s1`,<exists>(/* select#2 */ select `test`.`t2`.`s1` from `test`.`t2` where trigcond(<cache>(`test`.`t1`.`s1`) = `test`.`t2`.`s1` or `test`.`t2`.`s1` is null) having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 NOT IN (SELECT s1 FROM t2)` from `test`.`t1`
 explain extended select s1, s1 = ANY (SELECT s1 FROM t2) from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
-2	SUBQUERY	t2	index_subquery	s1	s1	6	func	2	100.00	Using index; Full scan on NULL key
+2	DEPENDENT SUBQUERY	t2	index	s1	s1	6	NULL	2	100.00	Using where; Using index
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1`
+Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,<in_optimizer>(`test`.`t1`.`s1`,<exists>(/* select#2 */ select `test`.`t2`.`s1` from `test`.`t2` where trigcond(<cache>(`test`.`t1`.`s1`) = `test`.`t2`.`s1` or `test`.`t2`.`s1` is null) having trigcond(`test`.`t2`.`s1` is null))) AS `s1 = ANY (SELECT s1 FROM t2)` from `test`.`t1`
 explain extended select s1, s1 <> ALL (SELECT s1 FROM t2) from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
-2	SUBQUERY	t2	index_subquery	s1	s1	6	func	2	100.00	Using index; Full scan on NULL key
+2	DEPENDENT SUBQUERY	t2	index	s1	s1	6	NULL	2	100.00	Using where; Using index
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!(<in_optimizer>(`test`.`t1`.`s1`,<exists>(<index_lookup>(<cache>(`test`.`t1`.`s1`) in t2 on s1 checking NULL having trigcond(`test`.`t2`.`s1` is null))))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1`
+Note	1003	/* select#1 */ select `test`.`t1`.`s1` AS `s1`,!(<in_optimizer>(`test`.`t1`.`s1`,<exists>(/* select#2 */ select `test`.`t2`.`s1` from `test`.`t2` where trigcond(<cache>(`test`.`t1`.`s1`) = `test`.`t2`.`s1` or `test`.`t2`.`s1` is null) having trigcond(`test`.`t2`.`s1` is null)))) AS `s1 <> ALL (SELECT s1 FROM t2)` from `test`.`t1`
 explain extended select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	s1	6	NULL	3	100.00	Using index
@@ -2424,16 +2424,18 @@ a
 3
 DROP TABLE t1;
 create table t1 (a int, b int);
-insert into t1 values (1,2),(3,4);
+insert into t1 values (1,2),(3,4),(5,6),(7,8);
 select * from t1 up where exists (select * from t1 where t1.a=up.a);
 a	b
 1	2
 3	4
+5	6
+7	8
 explain extended select * from t1 up where exists (select * from t1 where t1.a=up.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	up	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	PRIMARY	up	ALL	NULL	NULL	NULL	NULL	4	100.00	
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	
 Warnings:
 Note	1276	Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1
 Note	1003	select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` semi join (`test`.`t1`) where 1
@@ -3106,7 +3108,7 @@ retailerID	statusID	changed
 drop table t1;
 create table t1(a int, primary key (a));
 insert into t1 values (10);
-create table t2 (a int primary key, b varchar(32), c int, unique key b(c, b));
+create table t2 (a int primary key, b varchar(32), c int, unique key cb(c, b));
 insert into t2(a, c, b) values (1,10,'359'), (2,10,'35988'), (3,10,'35989');
 insert into t2(a, c, b) values (4,10,'360'), (5,10,'35998'), (6,10,'35999');
 analyze table t1;
@@ -3119,7 +3121,7 @@ ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	PRIMARY	NULL	NULL	NULL	1	
 1	PRIMARY	r	const	PRIMARY	PRIMARY	4	const	1	
-2	SUBQUERY	t2	range	b	b	40	NULL	3	Using where
+2	SUBQUERY	t2	ref	cb	cb	5	const	1	Using where
 SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r
 ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
             ORDER BY t2.c DESC, t2.b DESC LIMIT 1) WHERE t1.a = 10;
@@ -3131,7 +3133,7 @@ ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	PRIMARY	NULL	NULL	NULL	1	
 1	PRIMARY	r	const	PRIMARY	PRIMARY	4	const	1	
-2	SUBQUERY	t2	range	b	b	40	NULL	3	Using index condition
+2	SUBQUERY	t2	ref	cb	cb	5	const	1	Using index condition; Using where
 SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r
 ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
             ORDER BY t2.c, t2.b LIMIT 1) WHERE t1.a = 10;
@@ -4444,7 +4446,7 @@ out_a	MIN(b)
 DROP TABLE t1;
 CREATE TABLE t1 (a INT);
 CREATE TABLE t2 (a INT);
-INSERT INTO t1 VALUES (1),(2);
+INSERT INTO t1 VALUES (1),(2),(3),(4);
 INSERT INTO t2 VALUES (1),(2);
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
 2
@@ -4453,7 +4455,7 @@ SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
 EXPLAIN EXTENDED
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	
 Warnings:
@@ -4463,7 +4465,7 @@ EXPLAIN EXTENDED
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a) UNION
 (SELECT 1 FROM t2 WHERE t1.a = t2.a));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 3	DEPENDENT UNION	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
@@ -4547,15 +4549,15 @@ SET @save_join_cache_level=@@join_cache_level;
 SET join_cache_level=0;
 EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 GROUP BY a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	4	const	1	100.00	
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using temporary
 Warnings:
 Note	1003	/* select#1 */ select 1 AS `1` from  <materialize> (/* select#2 */ select min(`test`.`t1`.`a`) from `test`.`t1` group by `test`.`t1`.`a`) join `test`.`t1` where `<subquery2>`.`min(a)` = 1
 EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 WHERE a > 3 GROUP BY a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	4	const	1	100.00	
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
 2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Using temporary
 Warnings:
 Note	1003	/* select#1 */ select 1 AS `1` from  <materialize> (/* select#2 */ select min(`test`.`t1`.`a`) from `test`.`t1` where `test`.`t1`.`a` > 3 group by `test`.`t1`.`a`) join `test`.`t1` where `<subquery2>`.`min(a)` = 1
@@ -6086,8 +6088,7 @@ WHERE col_varchar_nokey IN
 (SELECT col_varchar_key FROM it1 WHERE col_int_key IS NULL);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	ot	system	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	it1	ref	idx_cvk_cik	idx_cvk_cik	9	const,const	1	Using where; Using index
+1	PRIMARY	it1	ref	idx_cvk_cik	idx_cvk_cik	9	const,const	1	Using where; Using index; FirstMatch(ot)
 SELECT col_int_nokey FROM ot 
 WHERE col_varchar_nokey IN 
 (SELECT col_varchar_key FROM it1 WHERE col_int_key IS NULL);
@@ -6099,8 +6100,7 @@ WHERE (col_varchar_nokey, 'x') IN
 (SELECT col_varchar_key, col_varchar_key2 FROM it2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	ot	system	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func,func	1	
-2	MATERIALIZED	it2	ref	idx_cvk_cvk2_cik,idx_cvk_cik	idx_cvk_cvk2_cik	8	const,const	1	Using where; Using index
+1	PRIMARY	it2	ref	idx_cvk_cvk2_cik,idx_cvk_cik	idx_cvk_cvk2_cik	8	const,const	1	Using where; Using index; FirstMatch(ot)
 SELECT col_int_nokey FROM ot
 WHERE (col_varchar_nokey, 'x') IN
 (SELECT col_varchar_key, col_varchar_key2 FROM it2);
diff --git a/mysql-test/main/subselect_no_semijoin.result b/mysql-test/main/subselect_no_semijoin.result
index e14d3d8bb73..edab14728b7 100644
--- a/mysql-test/main/subselect_no_semijoin.result
+++ b/mysql-test/main/subselect_no_semijoin.result
@@ -925,8 +925,8 @@ a	t1.a in (select t2.a from t2,t3 where t3.a=t2.a)
 explain extended SELECT t1.a, t1.a in (select t2.a from t2,t3 where t3.a=t2.a) FROM t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	index	NULL	PRIMARY	4	NULL	4	100.00	Using index
-2	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	
-2	MATERIALIZED	t2	index	a	a	5	NULL	3	75.00	Using where; Using index; Using join buffer (flat, BNL join)
+2	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
+2	MATERIALIZED	t2	ref	a	a	5	test.t3.a	2	100.00	Using index
 Warnings:
 Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (/* select#2 */ select `test`.`t2`.`a` from `test`.`t2` join `test`.`t3` where `test`.`t2`.`a` = `test`.`t3`.`a` ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where `test`.`t1`.`a` = `<subquery2>`.`a`)))) AS `t1.a in (select t2.a from t2,t3 where t3.a=t2.a)` from `test`.`t1`
 drop table t1,t2,t3;
@@ -1463,8 +1463,8 @@ a
 explain extended select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t2	index	NULL	PRIMARY	4	NULL	4	100.00	Using where; Using index
-2	MATERIALIZED	t1	ALL	PRIMARY	NULL	NULL	NULL	4	100.00	
-2	MATERIALIZED	t3	index	PRIMARY	PRIMARY	4	NULL	3	75.00	Using where; Using index; Using join buffer (flat, BNL join)
+2	MATERIALIZED	t1	ALL	PRIMARY	NULL	NULL	NULL	4	100.00	Using where
+2	MATERIALIZED	t3	eq_ref	PRIMARY	PRIMARY	4	test.t1.b	1	100.00	Using index
 Warnings:
 Note	1003	/* select#1 */ select `test`.`t2`.`a` AS `a` from `test`.`t2` where <expr_cache><`test`.`t2`.`a`>(<in_optimizer>(`test`.`t2`.`a`,`test`.`t2`.`a` in ( <materialize> (/* select#2 */ select `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where `test`.`t3`.`a` = `test`.`t1`.`b` ), <primary_index_lookup>(`test`.`t2`.`a` in <temporary table> on distinct_key where `test`.`t2`.`a` = `<subquery2>`.`a`))))
 drop table t1, t2, t3;
@@ -2421,15 +2421,17 @@ a
 3
 DROP TABLE t1;
 create table t1 (a int, b int);
-insert into t1 values (1,2),(3,4);
+insert into t1 values (1,2),(3,4),(5,6),(7,8);
 select * from t1 up where exists (select * from t1 where t1.a=up.a);
 a	b
 1	2
 3	4
+5	6
+7	8
 explain extended select * from t1 up where exists (select * from t1 where t1.a=up.a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	up	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
-2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	PRIMARY	up	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
+2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	
 Warnings:
 Note	1276	Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1
 Note	1003	/* select#1 */ select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where <expr_cache><`test`.`up`.`a`>(<in_optimizer>(`test`.`up`.`a`,`test`.`up`.`a` in ( <materialize> (/* select#2 */ select `test`.`t1`.`a` from `test`.`t1` where 1 ), <primary_index_lookup>(`test`.`up`.`a` in <temporary table> on distinct_key where `test`.`up`.`a` = `<subquery2>`.`a`))))
@@ -3101,7 +3103,7 @@ retailerID	statusID	changed
 drop table t1;
 create table t1(a int, primary key (a));
 insert into t1 values (10);
-create table t2 (a int primary key, b varchar(32), c int, unique key b(c, b));
+create table t2 (a int primary key, b varchar(32), c int, unique key cb(c, b));
 insert into t2(a, c, b) values (1,10,'359'), (2,10,'35988'), (3,10,'35989');
 insert into t2(a, c, b) values (4,10,'360'), (5,10,'35998'), (6,10,'35999');
 analyze table t1;
@@ -3114,7 +3116,7 @@ ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	PRIMARY	NULL	NULL	NULL	1	
 1	PRIMARY	r	const	PRIMARY	PRIMARY	4	const	1	
-2	SUBQUERY	t2	range	b	b	40	NULL	3	Using where
+2	SUBQUERY	t2	ref	cb	cb	5	const	1	Using where
 SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r
 ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
             ORDER BY t2.c DESC, t2.b DESC LIMIT 1) WHERE t1.a = 10;
@@ -3126,7 +3128,7 @@ ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	system	PRIMARY	NULL	NULL	NULL	1	
 1	PRIMARY	r	const	PRIMARY	PRIMARY	4	const	1	
-2	SUBQUERY	t2	range	b	b	40	NULL	3	Using index condition
+2	SUBQUERY	t2	ref	cb	cb	5	const	1	Using index condition; Using where
 SELECT sql_no_cache t1.a, r.a, r.b FROM t1 LEFT JOIN t2 r
 ON r.a = (SELECT t2.a FROM t2 WHERE t2.c = t1.a AND t2.b <= '359899'
             ORDER BY t2.c, t2.b LIMIT 1) WHERE t1.a = 10;
@@ -4437,7 +4439,7 @@ out_a	MIN(b)
 DROP TABLE t1;
 CREATE TABLE t1 (a INT);
 CREATE TABLE t2 (a INT);
-INSERT INTO t1 VALUES (1),(2);
+INSERT INTO t1 VALUES (1),(2),(3),(4);
 INSERT INTO t2 VALUES (1),(2);
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
 2
@@ -4446,7 +4448,7 @@ SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
 EXPLAIN EXTENDED
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	
 Warnings:
 Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
@@ -4455,7 +4457,7 @@ EXPLAIN EXTENDED
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a) UNION
 (SELECT 1 FROM t2 WHERE t1.a = t2.a));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 3	DEPENDENT UNION	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL	
@@ -5731,8 +5733,8 @@ SET join_cache_level=0;
 EXPLAIN SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	Using where
-2	MATERIALIZED	t2	index	NULL	PRIMARY	4	NULL	3	Using index
-2	MATERIALIZED	it	index	PRIMARY	PRIMARY	4	NULL	3	Using index
+2	DEPENDENT SUBQUERY	it	eq_ref	PRIMARY	PRIMARY	4	func	1	Using index
+2	DEPENDENT SUBQUERY	t2	index	NULL	PRIMARY	4	NULL	3	Using index
 SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1);
 pk	i
 11	0
diff --git a/mysql-test/main/subselect_sj.result b/mysql-test/main/subselect_sj.result
index 8078700bf5b..fa892e4d967 100644
--- a/mysql-test/main/subselect_sj.result
+++ b/mysql-test/main/subselect_sj.result
@@ -205,10 +205,10 @@ a	b	a	b
 insert into t1 select (A.a + 10 * B.a),1 from t0 A, t0 B;
 explain extended select * from t1 where a in (select pk from t10 where pk<3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t10	range	PRIMARY	PRIMARY	4	NULL	3	100.00	Using where; Using index
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	103	100.00	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	103	100.00	Using where
+1	PRIMARY	t10	eq_ref	PRIMARY	PRIMARY	4	test.t1.a	1	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t10` join `test`.`t1` where `test`.`t1`.`a` = `test`.`t10`.`pk` and `test`.`t10`.`pk` < 3
+Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t10` join `test`.`t1` where `test`.`t10`.`pk` = `test`.`t1`.`a` and `test`.`t1`.`a` < 3
 drop table t0, t1, t2;
 drop table t10, t11, t12;
 
@@ -344,8 +344,8 @@ WHERE PNUM IN
 (SELECT PNUM  FROM PROJ));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	STAFF	ALL	NULL	NULL	NULL	NULL	5	
-1	PRIMARY	PROJ	ALL	NULL	NULL	NULL	NULL	6	Start temporary
-1	PRIMARY	WORKS	ALL	NULL	NULL	NULL	NULL	12	Using where; End temporary
+1	PRIMARY	PROJ	ALL	NULL	NULL	NULL	NULL	6	
+1	PRIMARY	WORKS	ALL	NULL	NULL	NULL	NULL	12	Using where; FirstMatch(STAFF)
 SELECT EMPNUM, EMPNAME
 FROM STAFF
 WHERE EMPNUM IN
@@ -763,16 +763,16 @@ explain extended
 select a from t1
 where a in (select c from t2 where d >= some(select e from t3 where b=e));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	6	100.00	Start temporary
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	7	100.00	Using where; End temporary; Using join buffer (flat, BNL join)
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	7	100.00	
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	6	100.00	Using where; FirstMatch(t1)
 3	DEPENDENT SUBQUERY	t3	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
 Warnings:
 Note	1276	Field or reference 'test.t1.b' of SELECT #3 was resolved in SELECT #1
-Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where `test`.`t1`.`a` = `test`.`t2`.`c` and <nop>(<expr_cache><`test`.`t2`.`d`,`test`.`t1`.`b`>(<in_optimizer>(`test`.`t2`.`d`,<exists>(/* select#3 */ select `test`.`t3`.`e` from `test`.`t3` where `test`.`t1`.`b` = `test`.`t3`.`e` and <cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`))))
+Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where `test`.`t2`.`c` = `test`.`t1`.`a` and <nop>(<expr_cache><`test`.`t2`.`d`,`test`.`t1`.`b`>(<in_optimizer>(`test`.`t2`.`d`,<exists>(/* select#3 */ select `test`.`t3`.`e` from `test`.`t3` where `test`.`t1`.`b` = `test`.`t3`.`e` and <cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`))))
 show warnings;
 Level	Code	Message
 Note	1276	Field or reference 'test.t1.b' of SELECT #3 was resolved in SELECT #1
-Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where `test`.`t1`.`a` = `test`.`t2`.`c` and <nop>(<expr_cache><`test`.`t2`.`d`,`test`.`t1`.`b`>(<in_optimizer>(`test`.`t2`.`d`,<exists>(/* select#3 */ select `test`.`t3`.`e` from `test`.`t3` where `test`.`t1`.`b` = `test`.`t3`.`e` and <cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`))))
+Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where `test`.`t2`.`c` = `test`.`t1`.`a` and <nop>(<expr_cache><`test`.`t2`.`d`,`test`.`t1`.`b`>(<in_optimizer>(`test`.`t2`.`d`,<exists>(/* select#3 */ select `test`.`t3`.`e` from `test`.`t3` where `test`.`t1`.`b` = `test`.`t3`.`e` and <cache>(`test`.`t2`.`d`) >= `test`.`t3`.`e`))))
 select a from t1
 where a in (select c from t2 where d >= some(select e from t3 where b=e));
 a
@@ -802,6 +802,7 @@ PRIMARY KEY (pk)
 INSERT INTO t1 VALUES (1,'o','ffff','ffff','ffoo','ffff','ffff','ffff','ffff','ffff','ffff',GeomFromText('POLYGON((0 0, 0 2, 2 2, 2 0, 0 0))')), (2,'f','ffff','ffff','ffff', 'ffff','ffff','ffff','ffff','ffff','ffff',GeomFromText('POLYGON((0 0, 0 2, 2 2, 2 0, 0 0))'));
 CREATE TABLE t2 LIKE t1;
 INSERT INTO t2 VALUES (1,'i','iiii','iiii','iiii','iiii','ffff','ffff','ffff','ffff','ffff',GeomFromText('POLYGON((0 0, 0 2, 2 2, 2 0, 0 0))')), (2,'f','ffff','ffff','ffff','ffff','ffff','ffff','ffff','ffff','ffff',GeomFromText('POLYGON((0 0, 0 2, 2 2, 2 0, 0 0))'));
+insert into t2 (pk) values (-1),(0);
 EXPLAIN EXTENDED SELECT pk FROM t1 WHERE (a, b) IN (SELECT a, b FROM t2 WHERE pk > 0);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
@@ -1249,8 +1250,8 @@ INSERT INTO t2 VALUES (1, 0), (1, 1), (2, 0), (2, 1);
 EXPLAIN
 SELECT * FROM t1 WHERE (i) IN (SELECT i FROM t2 where j > 0);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	5	
-1	PRIMARY	t2	index	k	k	10	NULL	4	Using where; Using index; Start temporary; End temporary
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	5	Using where
+1	PRIMARY	t2	ref	k	k	5	test.t1.i	1	Using where; Using index; Start temporary; End temporary
 SELECT * FROM t1 WHERE (i) IN (SELECT i FROM t2 where j > 0);
 i
 1
@@ -1612,7 +1613,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	A	index	PRIMARY	PRIMARY	4	NULL	3	Using index
 1	PRIMARY	C	eq_ref	PRIMARY	PRIMARY	4	test.A.t1field	1	Using index
 1	PRIMARY	D	eq_ref	PRIMARY	PRIMARY	4	test.A.t1field	1	Using index
-1	PRIMARY	B	index	NULL	PRIMARY	4	NULL	3	Using index; Start temporary; End temporary
+1	PRIMARY	B	index	NULL	PRIMARY	4	NULL	3	Using index; FirstMatch(D)
 SELECT * FROM t1 A 
 WHERE 
 A.t1field IN (SELECT A.t1field FROM t2 B) AND 
@@ -1639,8 +1640,8 @@ select * from t1 A, t1 B
 where A.a = B.a and A.a in (select a from t2 C) and B.a in (select a from t2 D);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	A	ALL	NULL	NULL	NULL	NULL	3	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	B	ALL	NULL	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	C	ALL	NULL	NULL	NULL	NULL	3	
 3	MATERIALIZED	D	ALL	NULL	NULL	NULL	NULL	3	
@@ -1980,7 +1981,7 @@ f1	f3	f4	f2	f4
 DROP TABLE t1,t2,t3;
 #
 # BUG#803457: Wrong result with semijoin + view + outer join in maria-5.3-subqueries-mwl90
-#   (Original testcase)
+#   (Original, slightly modified testcase)
 #
 CREATE TABLE t1 (f1 int, f2 int );
 INSERT INTO t1 VALUES (2,0),(4,0),(0,NULL);
@@ -1990,24 +1991,23 @@ CREATE TABLE t3 ( f1 int, f3 int );
 INSERT INTO t3 VALUES (2,0),(4,0),(0,NULL),(4,0),(8,0);
 CREATE TABLE t4 ( f2 int, KEY (f2) );
 INSERT INTO t4 VALUES (0),(NULL);
-CREATE VIEW v4 AS SELECT DISTINCT f2 FROM t4 ;
+INSERT INTO t4 VALUES (0),(NULL),(-1),(-2),(-3);
 # The following must not have outer joins:
 explain extended
-SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE t2.f3 IN (SELECT * FROM t4);
+SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE t2.f3 IN (SELECT * FROM t4 where f2 = 0 or f2 IS NULL);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
 1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	5	100.00	Using where; Using join buffer (flat, BNL join)
-2	MATERIALIZED	t4	index	f2	f2	5	NULL	2	100.00	Using index
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
+2	MATERIALIZED	t4	ref_or_null	f2	f2	5	const	4	100.00	Using where; Using index
 Warnings:
-Note	1003	select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2`,`test`.`t2`.`f3` AS `f3`,`test`.`t3`.`f3` AS `f3` from `test`.`t1` semi join (`test`.`t4`) join `test`.`t2` join `test`.`t3` where `test`.`t3`.`f1` = `test`.`t1`.`f1` and `test`.`t1`.`f2` = `test`.`t2`.`f2`
-SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE t2.f3 IN (SELECT * FROM t4);
+Note	1003	select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2`,`test`.`t2`.`f3` AS `f3`,`test`.`t3`.`f3` AS `f3` from `test`.`t1` semi join (`test`.`t4`) join `test`.`t2` join `test`.`t3` where `test`.`t3`.`f1` = `test`.`t1`.`f1` and `test`.`t1`.`f2` = `test`.`t2`.`f2` and (`test`.`t4`.`f2` = 0 or `test`.`t4`.`f2` is null)
+SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE t2.f3 IN (SELECT * FROM t4 where f2 = 0 or f2 IS NULL);
 f1	f2	f3	f3
 2	0	0	0
 4	0	0	0
 4	0	0	0
-drop view v4;
 drop table t1, t2, t3, t4;
 #
 # BUG#803303: Wrong result with semijoin=on, outer join in maria-5.3-subqueries-mwl90
@@ -2090,9 +2090,9 @@ explain
 SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE IFNULL(t2.f3,'foo') IN (SELECT * FROM t4);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	
+1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	2	Start temporary
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where
-1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	5	Using where
-1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	2	Using where; Start temporary; End temporary
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	5	Using where; End temporary
 SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3 ) WHERE IFNULL(t2.f3,'foo') IN (SELECT * FROM t4);
 f1	f2	f3	f3
 2	0	0	0
@@ -2153,8 +2153,8 @@ INSERT INTO t3 VALUES (6,5),(6,2),(8,0),(9,1),(6,5);
 explain 
 SELECT * FROM t1, t2 WHERE (t2.a , t1.b) IN (SELECT a, b FROM t3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
-1	PRIMARY	t3	ALL	b	NULL	NULL	NULL	5	Using where; Start temporary
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	Using where
+1	PRIMARY	t3	ref	b	b	5	test.t1.b	2	Start temporary
 1	PRIMARY	t2	index	PRIMARY	PRIMARY	4	NULL	2	Using where; Using index; End temporary; Using join buffer (flat, BNL join)
 SELECT * FROM t1, t2 WHERE (t2.a , t1.b) IN (SELECT a, b FROM t3);
 b	a
@@ -2178,10 +2178,10 @@ INSERT INTO t5 VALUES (7,0),(9,0);
 explain
 SELECT * FROM t3 WHERE t3.a IN (SELECT t5.a FROM t2, t4, t5 WHERE t2.c = t5.a AND t2.b = t5.b);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t5	index	a	a	10	NULL	2	Using where; Using index; Start temporary
+1	PRIMARY	t5	index	a	a	10	NULL	2	Using where; Using index; LooseScan
 1	PRIMARY	t2	ref	b	b	5	test.t5.b	2	Using where
-1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	3	
-1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	15	Using where; End temporary; Using join buffer (flat, BNL join)
+1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	3	FirstMatch(t5)
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	15	Using where; Using join buffer (flat, BNL join)
 SELECT * FROM t3 WHERE t3.a IN (SELECT t5.a FROM t2, t4, t5 WHERE t2.c = t5.a AND t2.b = t5.b);
 a
 0
@@ -2350,8 +2350,8 @@ SELECT * FROM t1 WHERE (a) IN (SELECT a FROM t2 JOIN t3 ON b = a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	9	
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	13	
-2	MATERIALIZED	t2	index	b	b	8	NULL	7	Using where; Using index
+2	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	13	Using where
+2	MATERIALIZED	t2	ref	b	b	4	test.t3.a	1	Using index
 SELECT * FROM t1 WHERE (a) IN (SELECT a FROM t2 JOIN t3 ON b = a);
 a
 19
@@ -2499,10 +2499,9 @@ SELECT * FROM t1, t2
 WHERE t1.a = t2.a AND t2.a IN (SELECT b FROM t3 STRAIGHT_JOIN t4);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t3	system	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	1	
-1	PRIMARY	t1	ref	a	a	5	const	1	Using index
-1	PRIMARY	t2	ref	a	a	5	func	1	Using index
-2	MATERIALIZED	t4	ALL	NULL	NULL	NULL	NULL	0	
+1	PRIMARY	t2	ref	a	a	5	const	1	Using index
+1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	0	FirstMatch(t2); Using join buffer (flat, BNL join)
+1	PRIMARY	t1	ref	a	a	5	func	1	Using index
 SELECT * FROM t1, t2
 WHERE t1.a = t2.a AND t2.a IN (SELECT b FROM t3 STRAIGHT_JOIN t4);
 a	a
@@ -2574,33 +2573,33 @@ SELECT a, b, d FROM t1, t2
 WHERE ( b, d ) IN
 ( SELECT b, d FROM t1, t2 WHERE b = c );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	7	
-1	PRIMARY	t1	index	b	b	5	NULL	10	Using where; Using index; LooseScan
-1	PRIMARY	t2	ref	c	c	5	test.t1.b	1	Using where; FirstMatch(t1)
+1	PRIMARY	t1	index	b	b	5	NULL	10	Using where; Using index; Start temporary
+1	PRIMARY	t2	ref	c	c	5	test.t1.b	1	
 1	PRIMARY	t1	ref	b	b	5	test.t1.b	2	
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	7	Using where; End temporary; Using join buffer (flat, BNL join)
 SELECT a, b, d FROM t1, t2
 WHERE ( b, d ) IN
 ( SELECT b, d FROM t1, t2 WHERE b = c );
 a	b	d
-2	1	2
-7	1	2
-8	4	2
 1	2	1
-4	2	1
+1	2	1
 10	2	1
+10	2	1
+2	1	2
+2	1	2
 3	3	3
+3	3	3
+4	2	1
+4	2	1
+5	5	5
 6	3	3
-9	3	3
-2	1	2
+6	3	3
+7	1	2
 7	1	2
 8	4	2
-5	5	5
-3	3	3
-6	3	3
+8	4	2
+9	3	3
 9	3	3
-1	2	1
-4	2	1
-10	2	1
 DROP TABLE t1, t2;
 # Another testcase for the above that still uses LooseScan:
 create table t0(a int primary key);
@@ -2768,22 +2767,22 @@ SELECT * FROM t1 AS t1_1, t1 AS t1_2
 WHERE (t1_1.a, t1_2.a) IN ( SELECT a, b FROM v1 );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1_1	ALL	NULL	NULL	NULL	NULL	11	Using where
-1	PRIMARY	t1_2	ALL	NULL	NULL	NULL	NULL	11	
-1	PRIMARY	<derived3>	ref	key0	key0	5	test.t1_1.a	2	Using where; FirstMatch(t1_2)
+1	PRIMARY	<derived3>	ref	key0	key0	5	test.t1_1.a	2	Start temporary
+1	PRIMARY	t1_2	ALL	NULL	NULL	NULL	NULL	11	Using where; End temporary
 3	DERIVED	t1	ALL	NULL	NULL	NULL	NULL	11	
 SELECT * FROM t1 AS t1_1, t1 AS t1_2
 WHERE (t1_1.a, t1_2.a) IN ( SELECT a, b FROM v1 );
 a	b	a	b
-3	1	9	1
-5	8	4	0
-3	9	9	1
 2	4	4	0
 2	4	6	8
 2	6	4	0
 2	6	6	8
+3	1	9	1
+3	9	9	1
 5	4	4	0
-7	7	7	7
 5	4	4	0
+5	8	4	0
+7	7	7	7
 DROP VIEW v1;
 DROP TABLE t1;
 set @@join_cache_level= @tmp_jcl_978479;
@@ -2927,9 +2926,9 @@ alias2.col_int_key = alias1.col_int_key
 WHERE alias1.pk = 58 OR alias1.col_varchar_key = 'o'
 );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	alias1	index_merge	PRIMARY,col_int_key,col_varchar_key	PRIMARY,col_varchar_key	4,4	NULL	2	Using sort_union(PRIMARY,col_varchar_key); Using where; Start temporary
-1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
-1	PRIMARY	alias2	ALL	col_int_key	NULL	NULL	NULL	12	Range checked for each record (index map: 0x2); End temporary
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	
+1	PRIMARY	alias1	index_merge	PRIMARY,col_int_key,col_varchar_key	PRIMARY,col_varchar_key	4,4	NULL	2	Using sort_union(PRIMARY,col_varchar_key); Using where
+1	PRIMARY	alias2	ALL	col_int_key	NULL	NULL	NULL	12	Range checked for each record (index map: 0x2); FirstMatch(t2)
 SELECT *
 FROM t2
 WHERE (field1) IN (SELECT alias1.col_varchar_nokey AS field1
@@ -3289,8 +3288,7 @@ explain extended
 SELECT Id FROM t1 WHERE Id in (SELECT t1_Id  FROM t2 WHERE t2.col1 IS NULL);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	system	PRIMARY	NULL	NULL	NULL	1	100.00	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-2	MATERIALIZED	t2	ref	col1	col1	5	const	2	100.00	Using index condition; Using where
+1	PRIMARY	t2	ALL	col1	NULL	NULL	NULL	2	100.00	Using where; FirstMatch(t1)
 Warnings:
 Note	1003	select 1 AS `Id` from (`test`.`t2`) where `test`.`t2`.`t1_Id` = 1 and `test`.`t2`.`col1` is null
 DROP TABLE t1, t2;
diff --git a/mysql-test/main/subselect_sj.test b/mysql-test/main/subselect_sj.test
index e4d02ed666c..377f2344819 100644
--- a/mysql-test/main/subselect_sj.test
+++ b/mysql-test/main/subselect_sj.test
@@ -739,6 +739,7 @@ INSERT INTO t1 VALUES (1,'o','ffff','ffff','ffoo','ffff','ffff','ffff','ffff','f
 
 CREATE TABLE t2 LIKE t1;
 INSERT INTO t2 VALUES (1,'i','iiii','iiii','iiii','iiii','ffff','ffff','ffff','ffff','ffff',GeomFromText('POLYGON((0 0, 0 2, 2 2, 2 0, 0 0))')), (2,'f','ffff','ffff','ffff','ffff','ffff','ffff','ffff','ffff','ffff',GeomFromText('POLYGON((0 0, 0 2, 2 2, 2 0, 0 0))'));
+insert into t2 (pk) values (-1),(0);
 
 # Test that materialization is skipped for semijoins where materialized
 # table would contain GEOMETRY or different kinds of BLOB/TEXT columns
@@ -1739,7 +1740,7 @@ DROP TABLE t1,t2,t3;
 
 --echo #
 --echo # BUG#803457: Wrong result with semijoin + view + outer join in maria-5.3-subqueries-mwl90
---echo #   (Original testcase)
+--echo #   (Original, slightly modified testcase)
 --echo #
 
 CREATE TABLE t1 (f1 int, f2 int );
@@ -1753,15 +1754,13 @@ INSERT INTO t3 VALUES (2,0),(4,0),(0,NULL),(4,0),(8,0);
 
 CREATE TABLE t4 ( f2 int, KEY (f2) );
 INSERT INTO t4 VALUES (0),(NULL);
-
-CREATE VIEW v4 AS SELECT DISTINCT f2 FROM t4 ;
+INSERT INTO t4 VALUES (0),(NULL),(-1),(-2),(-3);
 
 --echo # The following must not have outer joins:
 explain extended
-SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE t2.f3 IN (SELECT * FROM t4); 
-SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE t2.f3 IN (SELECT * FROM t4); 
+SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE t2.f3 IN (SELECT * FROM t4 where f2 = 0 or f2 IS NULL); 
+SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE t2.f3 IN (SELECT * FROM t4 where f2 = 0 or f2 IS NULL);
 
-drop view v4;
 drop table t1, t2, t3, t4;
 
 --echo #
@@ -2249,6 +2248,7 @@ INSERT INTO t1 VALUES
 CREATE TABLE t2 ( a INT, b INT, KEY(a)) ENGINE=MyISAM;
 INSERT INTO t2 VALUES (3,20),(2,21),(3,22);
 
+--sorted_result
 SELECT *
 FROM t1 AS alias1, t1 AS alias2
 WHERE ( alias1.c, alias2.c )
@@ -2299,6 +2299,7 @@ explain
 SELECT a, b, d FROM t1, t2
 WHERE ( b, d ) IN
   ( SELECT b, d FROM t1, t2 WHERE b = c );
+--sorted_result
 SELECT a, b, d FROM t1, t2
 WHERE ( b, d ) IN
   ( SELECT b, d FROM t1, t2 WHERE b = c );
@@ -2449,6 +2450,7 @@ EXPLAIN
 SELECT * FROM t1 AS t1_1, t1 AS t1_2
   WHERE (t1_1.a, t1_2.a) IN ( SELECT a, b FROM v1 );
 
+--sorted_result
 SELECT * FROM t1 AS t1_1, t1 AS t1_2
   WHERE (t1_1.a, t1_2.a) IN ( SELECT a, b FROM v1 );
 
diff --git a/mysql-test/main/subselect_sj2.result b/mysql-test/main/subselect_sj2.result
index f81540716d1..8bb05873853 100644
--- a/mysql-test/main/subselect_sj2.result
+++ b/mysql-test/main/subselect_sj2.result
@@ -54,9 +54,9 @@ a	b
 19	14
 explain select * from t2 where b in (select a from t1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t2	ALL	b	NULL	NULL	NULL	20	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	3	
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	
+1	PRIMARY	t2	ref	b	b	5	test.t1.a	2	
+2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	3	Using where
 select * from t2 where b in (select a from t1);
 a	b
 1	1
@@ -82,9 +82,9 @@ test.t3	analyze	status	Engine-independent statistics collected
 test.t3	analyze	status	OK
 explain select * from t3 where b in (select a from t1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t3	ALL	b	NULL	NULL	NULL	20	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	3	
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	
+1	PRIMARY	t3	ref	b	b	5	test.t1.a	2	
+2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	3	Using where
 select * from t3 where b in (select a from t1);
 a	b	pk1	pk2	pk3
 1	1	1	1	1
@@ -307,7 +307,7 @@ from t0 where a in
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t0	ALL	NULL	NULL	NULL	NULL	10	
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func	1	Using where
-2	MATERIALIZED	t1	range	a	a	5	NULL	10	Using where; Using index
+2	MATERIALIZED	t1	index	a	a	5	NULL	10	Using where; Using index
 2	MATERIALIZED	t2	ref	a	a	5	test.t1.a	1	Using index
 2	MATERIALIZED	t3	ref	a	a	5	test.t1.a	1	Using index
 drop table t0, t1,t2,t3;
@@ -743,9 +743,8 @@ alter table t3 add primary key(id), add key(a);
 The following must use loose index scan over t3, key a:
 explain select count(a) from t2 where a in ( SELECT  a FROM t3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t2	index	a	a	5	NULL	1000	Using index
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	t3	index	a	a	5	NULL	30000	Using index
+1	PRIMARY	t2	index	a	a	5	NULL	1000	Using where; Using index
+1	PRIMARY	t3	ref	a	a	5	test.t2.a	30	Using index; FirstMatch(t2)
 select count(a) from t2 where a in ( SELECT  a FROM t3);
 count(a)
 1000
@@ -773,8 +772,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	Using where
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	
 1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	2	FirstMatch(t2)
-1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	Using where
-3	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	1	
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	Using where; FirstMatch(t3)
 select 1 from t2 where 
 c2 in (select 1 from t3, t2) and
 c1 in (select convert(c6,char(1)) from t2);
@@ -843,9 +841,9 @@ SELECT * FROM t3
 WHERE f12 IN (SELECT alias2.f12 FROM t1 AS alias1, t2 AS alias2, t1 WHERE alias1.f13 = 24);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	alias1	const	PRIMARY	PRIMARY	4	const	#	Using index
-1	PRIMARY	alias2	index	f12	f12	7	NULL	#	Using index; Start temporary
-1	PRIMARY	t1	index	NULL	PRIMARY	4	NULL	#	Using index
-1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	#	Using where; End temporary; Using join buffer (flat, BNL join)
+1	PRIMARY	alias2	index	f12	f12	7	NULL	#	Using index; LooseScan
+1	PRIMARY	t1	index	NULL	PRIMARY	4	NULL	#	Using index; FirstMatch(alias2)
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	#	Using where; Using join buffer (flat, BNL join)
 SELECT * FROM t3 
 WHERE f12 IN (SELECT alias2.f12 FROM t1 AS alias1, t2 AS alias2, t1 WHERE alias1.f13 = 24);
 f12
@@ -914,9 +912,9 @@ SELECT * FROM t3 LEFT JOIN (v1,t2) ON t3.a = t2.a
 WHERE t3.b IN (SELECT b FROM t4);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	Using where
 1	PRIMARY	<derived3>	ALL	NULL	NULL	NULL	NULL	2	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	t4	ALL	NULL	NULL	NULL	NULL	2	
 3	DERIVED	t1	ALL	NULL	NULL	NULL	NULL	1	
 SELECT * FROM t3 LEFT JOIN (v1,t2) ON t3.a = t2.a
@@ -973,10 +971,9 @@ SELECT d FROM t2, t1
 WHERE a = d AND ( pk < 2 OR d = 'z' )
 );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	2	
+1	PRIMARY	t2	index	PRIMARY,d	d	9	NULL	17	Using where; Using index; LooseScan
+1	PRIMARY	t1	ref	a	a	5	test.t2.d	1	Using where; Using index; FirstMatch(t2)
 1	PRIMARY	t1	ref	b	b	4	test.t2.d	1	
-2	MATERIALIZED	t2	index_merge	PRIMARY,d	d,PRIMARY	4,4	NULL	2	Using sort_union(d,PRIMARY); Using where
-2	MATERIALIZED	t1	ref	a	a	5	test.t2.d	1	Using where; Using index
 SELECT * FROM t1 WHERE b IN (
 SELECT d FROM t2, t1
 WHERE a = d AND ( pk < 2 OR d = 'z' )
@@ -1228,9 +1225,9 @@ explain
 SELECT * FROM t1, t3 WHERE t3_c IN ( SELECT t1_pk2 FROM t4, t2 WHERE t2_c = t1_pk2 AND t2_i >= t3_i ) AND ( t1_pk1 = 'POL' );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ref	PRIMARY	PRIMARY	5	const	1	Using where; Using index
-1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	Start temporary
-1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
-1	PRIMARY	t4	index	NULL	PRIMARY	59	NULL	2	Using where; Using index; End temporary
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	2	Using join buffer (flat, BNL join)
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	Using where
+1	PRIMARY	t4	index	NULL	PRIMARY	59	NULL	2	Using where; Using index; FirstMatch(t3)
 DROP TABLE t1,t2,t3,t4;
 #
 # MDEV-6263: Wrong result when using IN subquery with order by
diff --git a/mysql-test/main/subselect_sj2.test b/mysql-test/main/subselect_sj2.test
index 6c936559ce6..4c95c977371 100644
--- a/mysql-test/main/subselect_sj2.test
+++ b/mysql-test/main/subselect_sj2.test
@@ -1312,8 +1312,6 @@ SELECT * FROM t1 WHERE 9 IN ( SELECT b FROM t2 WHERE 1 IN ( SELECT MIN(c) FROM t
 
 DROP TABLE t1,t2,t3;
 
---source include/have_innodb.inc
-
 --disable_warnings
 DROP TABLE IF EXISTS t1,t2,t3,t4;
 --enable_warnings
diff --git a/mysql-test/main/subselect_sj2_jcl6.result b/mysql-test/main/subselect_sj2_jcl6.result
index 10cfc2e2546..95b02d1a23a 100644
--- a/mysql-test/main/subselect_sj2_jcl6.result
+++ b/mysql-test/main/subselect_sj2_jcl6.result
@@ -66,8 +66,7 @@ a	b
 explain select * from t2 where b in (select a from t1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	ALL	b	NULL	NULL	NULL	20	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	3	
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	Using where; FirstMatch(t2); Using join buffer (flat, BNL join)
 select * from t2 where b in (select a from t1);
 a	b
 1	1
@@ -93,9 +92,9 @@ test.t3	analyze	status	Engine-independent statistics collected
 test.t3	analyze	status	OK
 explain select * from t3 where b in (select a from t1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t3	ALL	b	NULL	NULL	NULL	20	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	3	
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	
+1	PRIMARY	t3	ref	b	b	5	test.t1.a	2	Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
+2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	3	Using where
 select * from t3 where b in (select a from t1);
 a	b	pk1	pk2	pk3
 1	1	1	1	1
@@ -318,7 +317,7 @@ from t0 where a in
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t0	ALL	NULL	NULL	NULL	NULL	10	
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func	1	Using where
-2	MATERIALIZED	t1	range	a	a	5	NULL	10	Using where; Using index
+2	MATERIALIZED	t1	index	a	a	5	NULL	10	Using where; Using index
 2	MATERIALIZED	t2	ref	a	a	5	test.t1.a	1	Using index
 2	MATERIALIZED	t3	ref	a	a	5	test.t1.a	1	Using index
 drop table t0, t1,t2,t3;
@@ -756,9 +755,8 @@ alter table t3 add primary key(id), add key(a);
 The following must use loose index scan over t3, key a:
 explain select count(a) from t2 where a in ( SELECT  a FROM t3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t2	index	a	a	5	NULL	1000	Using index
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	t3	index	a	a	5	NULL	30000	Using index
+1	PRIMARY	t2	index	a	a	5	NULL	1000	Using where; Using index
+1	PRIMARY	t3	ref	a	a	5	test.t2.a	30	Using index; FirstMatch(t2)
 select count(a) from t2 where a in ( SELECT  a FROM t3);
 count(a)
 1000
@@ -786,8 +784,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	Using where
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	Using join buffer (flat, BNL join)
 1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	2	FirstMatch(t2); Using join buffer (incremental, BNL join)
-1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	Using where
-3	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	1	
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	Using where; FirstMatch(t3); Using join buffer (incremental, BNL join)
 select 1 from t2 where 
 c2 in (select 1 from t3, t2) and
 c1 in (select convert(c6,char(1)) from t2);
@@ -986,10 +983,9 @@ SELECT d FROM t2, t1
 WHERE a = d AND ( pk < 2 OR d = 'z' )
 );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	2	
+1	PRIMARY	t2	index	PRIMARY,d	d	9	NULL	17	Using where; Using index; LooseScan
+1	PRIMARY	t1	ref	a	a	5	test.t2.d	1	Using where; Using index; FirstMatch(t2)
 1	PRIMARY	t1	ref	b	b	4	test.t2.d	1	Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
-2	MATERIALIZED	t2	index_merge	PRIMARY,d	d,PRIMARY	4,4	NULL	2	Using sort_union(d,PRIMARY); Using where
-2	MATERIALIZED	t1	ref	a	a	5	test.t2.d	1	Using where; Using index
 SELECT * FROM t1 WHERE b IN (
 SELECT d FROM t2, t1
 WHERE a = d AND ( pk < 2 OR d = 'z' )
@@ -1442,10 +1438,9 @@ SELECT t3.* FROM t1 JOIN t3 ON t3.b = t1.b
 WHERE c IN (SELECT t4.b FROM t4 JOIN t2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	1	Using where
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	Using join buffer (flat, BNL join)
+1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	2	Using where; FirstMatch(t3); Using join buffer (incremental, BNL join)
 1	PRIMARY	t1	ref	b	b	4	test.t3.b	1	Using index
-2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	1	
-2	MATERIALIZED	t4	ALL	NULL	NULL	NULL	NULL	2	Using join buffer (flat, BNL join)
 SELECT t3.* FROM t1 JOIN t3 ON t3.b = t1.b
 WHERE c IN (SELECT t4.b FROM t4 JOIN t2);
 b	c
@@ -1463,7 +1458,7 @@ INSERT INTO t2 VALUES (8);
 CREATE TABLE t3 (pk int PRIMARY KEY, a int);
 INSERT INTO t3 VALUES (1, 6), (2, 8);
 CREATE TABLE t4 (b int) ENGINE=InnoDB;
-INSERT INTO t4 VALUES (2);
+INSERT INTO t4 VALUES (2),(88),(99);
 set @tmp_optimizer_switch=@@optimizer_switch;
 SET optimizer_switch = 'semijoin_with_cache=on';
 SET join_cache_level = 2;
@@ -1471,10 +1466,10 @@ EXPLAIN
 SELECT * FROM t1, t2 WHERE b IN (SELECT a FROM t3, t4 WHERE b = pk);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	Using join buffer (flat, BNL join)
-2	MATERIALIZED	t4	ALL	NULL	NULL	NULL	NULL	1	Using where
-2	MATERIALIZED	t3	eq_ref	PRIMARY	PRIMARY	4	test.t4.b	1	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
+2	MATERIALIZED	t4	ALL	NULL	NULL	NULL	NULL	3	
+2	MATERIALIZED	t3	ALL	PRIMARY	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
 SELECT * FROM t1, t2 WHERE b IN (SELECT a FROM t3, t4 WHERE b = pk);
 pk	a	b
 1	6	8
@@ -1496,8 +1491,7 @@ EXPLAIN
 SELECT * FROM t1 WHERE b IN (SELECT a FROM t2 GROUP BY a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	1	
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	Using where; FirstMatch(t1); Using join buffer (flat, BNL join)
 SELECT * FROM t1 WHERE b IN (SELECT a FROM t2 GROUP BY a);
 a	b
 v	v
diff --git a/mysql-test/main/subselect_sj2_jcl6.test b/mysql-test/main/subselect_sj2_jcl6.test
index a0c8a6c0f04..ea3f07b289a 100644
--- a/mysql-test/main/subselect_sj2_jcl6.test
+++ b/mysql-test/main/subselect_sj2_jcl6.test
@@ -66,7 +66,7 @@ INSERT INTO t2 VALUES (8);
 CREATE TABLE t3 (pk int PRIMARY KEY, a int);
 INSERT INTO t3 VALUES (1, 6), (2, 8);
 CREATE TABLE t4 (b int) ENGINE=InnoDB;
-INSERT INTO t4 VALUES (2);
+INSERT INTO t4 VALUES (2),(88),(99);
 
 set @tmp_optimizer_switch=@@optimizer_switch;
 
diff --git a/mysql-test/main/subselect_sj2_mat.result b/mysql-test/main/subselect_sj2_mat.result
index 4b269619102..5d4543d673f 100644
--- a/mysql-test/main/subselect_sj2_mat.result
+++ b/mysql-test/main/subselect_sj2_mat.result
@@ -56,9 +56,9 @@ a	b
 19	14
 explain select * from t2 where b in (select a from t1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t2	ALL	b	NULL	NULL	NULL	20	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	3	
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	
+1	PRIMARY	t2	ref	b	b	5	test.t1.a	2	
+2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	3	Using where
 select * from t2 where b in (select a from t1);
 a	b
 1	1
@@ -84,9 +84,9 @@ test.t3	analyze	status	Engine-independent statistics collected
 test.t3	analyze	status	OK
 explain select * from t3 where b in (select a from t1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t3	ALL	b	NULL	NULL	NULL	20	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	3	
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	
+1	PRIMARY	t3	ref	b	b	5	test.t1.a	2	
+2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	3	Using where
 select * from t3 where b in (select a from t1);
 a	b	pk1	pk2	pk3
 1	1	1	1	1
@@ -309,7 +309,7 @@ from t0 where a in
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t0	ALL	NULL	NULL	NULL	NULL	10	
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	8	func	1	Using where
-2	MATERIALIZED	t1	range	a	a	5	NULL	10	Using where; Using index
+2	MATERIALIZED	t1	index	a	a	5	NULL	10	Using where; Using index
 2	MATERIALIZED	t2	ref	a	a	5	test.t1.a	1	Using index
 2	MATERIALIZED	t3	ref	a	a	5	test.t1.a	1	Using index
 drop table t0, t1,t2,t3;
@@ -745,9 +745,8 @@ alter table t3 add primary key(id), add key(a);
 The following must use loose index scan over t3, key a:
 explain select count(a) from t2 where a in ( SELECT  a FROM t3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t2	index	a	a	5	NULL	1000	Using index
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	t3	index	a	a	5	NULL	30000	Using index
+1	PRIMARY	t2	index	a	a	5	NULL	1000	Using where; Using index
+1	PRIMARY	t3	ref	a	a	5	test.t2.a	30	Using index; FirstMatch(t2)
 select count(a) from t2 where a in ( SELECT  a FROM t3);
 count(a)
 1000
@@ -775,8 +774,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	Using where
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	
 1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	2	FirstMatch(t2)
-1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	Using where
-3	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	1	
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	Using where; FirstMatch(t3)
 select 1 from t2 where 
 c2 in (select 1 from t3, t2) and
 c1 in (select convert(c6,char(1)) from t2);
@@ -845,9 +843,9 @@ SELECT * FROM t3
 WHERE f12 IN (SELECT alias2.f12 FROM t1 AS alias1, t2 AS alias2, t1 WHERE alias1.f13 = 24);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	alias1	const	PRIMARY	PRIMARY	4	const	#	Using index
-1	PRIMARY	alias2	index	f12	f12	7	NULL	#	Using index; Start temporary
-1	PRIMARY	t1	index	NULL	PRIMARY	4	NULL	#	Using index
-1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	#	Using where; End temporary; Using join buffer (flat, BNL join)
+1	PRIMARY	alias2	index	f12	f12	7	NULL	#	Using index; LooseScan
+1	PRIMARY	t1	index	NULL	PRIMARY	4	NULL	#	Using index; FirstMatch(alias2)
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	#	Using where; Using join buffer (flat, BNL join)
 SELECT * FROM t3 
 WHERE f12 IN (SELECT alias2.f12 FROM t1 AS alias1, t2 AS alias2, t1 WHERE alias1.f13 = 24);
 f12
@@ -916,9 +914,9 @@ SELECT * FROM t3 LEFT JOIN (v1,t2) ON t3.a = t2.a
 WHERE t3.b IN (SELECT b FROM t4);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	Using where
 1	PRIMARY	<derived3>	ALL	NULL	NULL	NULL	NULL	2	
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	t4	ALL	NULL	NULL	NULL	NULL	2	
 3	DERIVED	t1	ALL	NULL	NULL	NULL	NULL	1	
 SELECT * FROM t3 LEFT JOIN (v1,t2) ON t3.a = t2.a
@@ -975,10 +973,9 @@ SELECT d FROM t2, t1
 WHERE a = d AND ( pk < 2 OR d = 'z' )
 );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	2	
+1	PRIMARY	t2	index	PRIMARY,d	d	9	NULL	17	Using where; Using index; LooseScan
+1	PRIMARY	t1	ref	a	a	5	test.t2.d	1	Using where; Using index; FirstMatch(t2)
 1	PRIMARY	t1	ref	b	b	4	test.t2.d	1	
-2	MATERIALIZED	t2	index_merge	PRIMARY,d	d,PRIMARY	4,4	NULL	2	Using sort_union(d,PRIMARY); Using where
-2	MATERIALIZED	t1	ref	a	a	5	test.t2.d	1	Using where; Using index
 SELECT * FROM t1 WHERE b IN (
 SELECT d FROM t2, t1
 WHERE a = d AND ( pk < 2 OR d = 'z' )
@@ -1230,9 +1227,9 @@ explain
 SELECT * FROM t1, t3 WHERE t3_c IN ( SELECT t1_pk2 FROM t4, t2 WHERE t2_c = t1_pk2 AND t2_i >= t3_i ) AND ( t1_pk1 = 'POL' );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ref	PRIMARY	PRIMARY	5	const	1	Using where; Using index
-1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	Start temporary
-1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
-1	PRIMARY	t4	index	NULL	PRIMARY	59	NULL	2	Using where; Using index; End temporary
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	2	Using join buffer (flat, BNL join)
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	1	Using where
+1	PRIMARY	t4	index	NULL	PRIMARY	59	NULL	2	Using where; Using index; FirstMatch(t3)
 DROP TABLE t1,t2,t3,t4;
 #
 # MDEV-6263: Wrong result when using IN subquery with order by
@@ -1529,8 +1526,7 @@ t3.sack_id = 33479 AND t3.kit_id = 6;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t3	ref	PRIMARY	PRIMARY	5	const,const	5	Using index
 1	PRIMARY	t1	eq_ref	PRIMARY	PRIMARY	4	test.t3.cat_id	1	Using index
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	Using where
-2	MATERIALIZED	t2	index	cat_id	cat_id	4	NULL	19	Using index
+1	PRIMARY	t2	ref	cat_id	cat_id	4	test.t3.cat_id	2	Using where; Using index; FirstMatch(t1)
 SELECT count(*) FROM t1, t3 
 WHERE  t1.cat_id = t3.cat_id AND 
 t3.cat_id IN (SELECT cat_id FROM t2) AND 
@@ -1741,7 +1737,7 @@ WHERE f1 IN ( SELECT f2 FROM t2 WHERE f2 > 'bar' )
 HAVING f1 != 'foo'
 ORDER BY f1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t1	range	f1	f1	11	NULL	2	Using where; Using index
+1	PRIMARY	t1	index	f1	f1	11	NULL	2	Using where; Using index
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	11	func	1	
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	Using where
 DROP TABLE t1,t2;
@@ -1945,20 +1941,20 @@ AND t3.id_product IN (SELECT id_product FROM t2 t2_3 WHERE t2_3.id_t2 = 18 OR t2
 AND t3.id_product IN (SELECT id_product FROM t2 t2_4 WHERE t2_4.id_t2 = 34 OR t2_4.id_t2 = 23) 
 AND t3.id_product IN (SELECT id_product FROM t2 t2_5 WHERE t2_5.id_t2 = 29 OR t2_5.id_t2 = 28 OR t2_5.id_t2 = 26);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t3	index	PRIMARY	PRIMARY	4	NULL	18	Using index
+1	PRIMARY	t1	index	NULL	PRIMARY	8	NULL	73	Using index
+1	PRIMARY	t3	eq_ref	PRIMARY	PRIMARY	4	test.t1.id_product	1	Using index
+1	PRIMARY	t4	eq_ref	PRIMARY	PRIMARY	8	test.t1.id_product,const	1	Using where; Using index
 1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	Using where
-1	PRIMARY	<subquery5>	eq_ref	distinct_key	distinct_key	4	func	1	Using where
 1	PRIMARY	<subquery4>	eq_ref	distinct_key	distinct_key	4	func	1	Using where
-1	PRIMARY	t4	eq_ref	PRIMARY	PRIMARY	8	test.t3.id_product,const	1	Using where; Using index
+1	PRIMARY	<subquery5>	eq_ref	distinct_key	distinct_key	4	func	1	Using where
+1	PRIMARY	<subquery6>	eq_ref	distinct_key	distinct_key	4	func	1	Using where
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	Using where
 1	PRIMARY	t5	ALL	NULL	NULL	NULL	NULL	18	Using where; Using join buffer (flat, BNL join)
-1	PRIMARY	<subquery6>	eq_ref	distinct_key	distinct_key	4	func	1	Using where
-1	PRIMARY	t1	index	NULL	PRIMARY	8	NULL	73	Using where; Using index; Using join buffer (flat, BNL join)
 3	MATERIALIZED	t2_2	ref	id_t2,id_product	id_t2	5	const	12	
-5	MATERIALIZED	t2_4	range	id_t2,id_product	id_t2	5	NULL	18	Using index condition; Using where
 4	MATERIALIZED	t2_3	range	id_t2,id_product	id_t2	5	NULL	33	Using index condition; Using where
-2	MATERIALIZED	t2_1	ALL	id_t2,id_product	NULL	NULL	NULL	223	Using where
+5	MATERIALIZED	t2_4	range	id_t2,id_product	id_t2	5	NULL	18	Using index condition; Using where
 6	MATERIALIZED	t2_5	range	id_t2,id_product	id_t2	5	NULL	31	Using index condition; Using where
+2	MATERIALIZED	t2_1	ref	id_t2,id_product	id_t2	5	const	51	
 set optimizer_switch='rowid_filter=default';
 drop table t1,t2,t3,t4,t5;
 set global innodb_stats_persistent= @innodb_stats_persistent_save;
diff --git a/mysql-test/main/subselect_sj_jcl6.result b/mysql-test/main/subselect_sj_jcl6.result
index a782280da96..b43171d7910 100644
--- a/mysql-test/main/subselect_sj_jcl6.result
+++ b/mysql-test/main/subselect_sj_jcl6.result
@@ -216,10 +216,10 @@ a	b	a	b
 insert into t1 select (A.a + 10 * B.a),1 from t0 A, t0 B;
 explain extended select * from t1 where a in (select pk from t10 where pk<3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t10	range	PRIMARY	PRIMARY	4	NULL	3	100.00	Using where; Using index
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	103	100.00	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	103	100.00	Using where
+1	PRIMARY	t10	eq_ref	PRIMARY	PRIMARY	4	test.t1.a	1	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t10` join `test`.`t1` where `test`.`t1`.`a` = `test`.`t10`.`pk` and `test`.`t10`.`pk` < 3
+Note	1003	select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t10` join `test`.`t1` where `test`.`t10`.`pk` = `test`.`t1`.`a` and `test`.`t1`.`a` < 3
 drop table t0, t1, t2;
 drop table t10, t11, t12;
 
@@ -355,8 +355,8 @@ WHERE PNUM IN
 (SELECT PNUM  FROM PROJ));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	STAFF	ALL	NULL	NULL	NULL	NULL	5	
-1	PRIMARY	PROJ	ALL	NULL	NULL	NULL	NULL	6	Start temporary; Using join buffer (flat, BNL join)
-1	PRIMARY	WORKS	ALL	NULL	NULL	NULL	NULL	12	Using where; End temporary; Using join buffer (incremental, BNL join)
+1	PRIMARY	PROJ	ALL	NULL	NULL	NULL	NULL	6	Using join buffer (flat, BNL join)
+1	PRIMARY	WORKS	ALL	NULL	NULL	NULL	NULL	12	Using where; FirstMatch(STAFF); Using join buffer (incremental, BNL join)
 SELECT EMPNUM, EMPNAME
 FROM STAFF
 WHERE EMPNUM IN
@@ -813,6 +813,7 @@ PRIMARY KEY (pk)
 INSERT INTO t1 VALUES (1,'o','ffff','ffff','ffoo','ffff','ffff','ffff','ffff','ffff','ffff',GeomFromText('POLYGON((0 0, 0 2, 2 2, 2 0, 0 0))')), (2,'f','ffff','ffff','ffff', 'ffff','ffff','ffff','ffff','ffff','ffff',GeomFromText('POLYGON((0 0, 0 2, 2 2, 2 0, 0 0))'));
 CREATE TABLE t2 LIKE t1;
 INSERT INTO t2 VALUES (1,'i','iiii','iiii','iiii','iiii','ffff','ffff','ffff','ffff','ffff',GeomFromText('POLYGON((0 0, 0 2, 2 2, 2 0, 0 0))')), (2,'f','ffff','ffff','ffff','ffff','ffff','ffff','ffff','ffff','ffff',GeomFromText('POLYGON((0 0, 0 2, 2 2, 2 0, 0 0))'));
+insert into t2 (pk) values (-1),(0);
 EXPLAIN EXTENDED SELECT pk FROM t1 WHERE (a, b) IN (SELECT a, b FROM t2 WHERE pk > 0);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	
@@ -1260,8 +1261,8 @@ INSERT INTO t2 VALUES (1, 0), (1, 1), (2, 0), (2, 1);
 EXPLAIN
 SELECT * FROM t1 WHERE (i) IN (SELECT i FROM t2 where j > 0);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	5	
-1	PRIMARY	t2	index	k	k	10	NULL	4	Using where; Using index; Start temporary; End temporary; Using join buffer (flat, BNL join)
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	5	Using where
+1	PRIMARY	t2	ref	k	k	5	test.t1.i	1	Using where; Using index; Start temporary; End temporary
 SELECT * FROM t1 WHERE (i) IN (SELECT i FROM t2 where j > 0);
 i
 1
@@ -1650,8 +1651,8 @@ select * from t1 A, t1 B
 where A.a = B.a and A.a in (select a from t2 C) and B.a in (select a from t2 D);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	A	ALL	NULL	NULL	NULL	NULL	3	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	B	ALL	NULL	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 1	PRIMARY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	C	ALL	NULL	NULL	NULL	NULL	3	
 3	MATERIALIZED	D	ALL	NULL	NULL	NULL	NULL	3	
@@ -1991,7 +1992,7 @@ f1	f3	f4	f2	f4
 DROP TABLE t1,t2,t3;
 #
 # BUG#803457: Wrong result with semijoin + view + outer join in maria-5.3-subqueries-mwl90
-#   (Original testcase)
+#   (Original, slightly modified testcase)
 #
 CREATE TABLE t1 (f1 int, f2 int );
 INSERT INTO t1 VALUES (2,0),(4,0),(0,NULL);
@@ -2001,24 +2002,23 @@ CREATE TABLE t3 ( f1 int, f3 int );
 INSERT INTO t3 VALUES (2,0),(4,0),(0,NULL),(4,0),(8,0);
 CREATE TABLE t4 ( f2 int, KEY (f2) );
 INSERT INTO t4 VALUES (0),(NULL);
-CREATE VIEW v4 AS SELECT DISTINCT f2 FROM t4 ;
+INSERT INTO t4 VALUES (0),(NULL),(-1),(-2),(-3);
 # The following must not have outer joins:
 explain extended
-SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE t2.f3 IN (SELECT * FROM t4);
+SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE t2.f3 IN (SELECT * FROM t4 where f2 = 0 or f2 IS NULL);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
 1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	5	100.00	Using where; Using join buffer (incremental, BNL join)
-2	MATERIALIZED	t4	index	f2	f2	5	NULL	2	100.00	Using index
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
+2	MATERIALIZED	t4	ref_or_null	f2	f2	5	const	4	100.00	Using where; Using index
 Warnings:
-Note	1003	select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2`,`test`.`t2`.`f3` AS `f3`,`test`.`t3`.`f3` AS `f3` from `test`.`t1` semi join (`test`.`t4`) join `test`.`t2` join `test`.`t3` where `test`.`t3`.`f1` = `test`.`t1`.`f1` and `test`.`t1`.`f2` = `test`.`t2`.`f2`
-SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE t2.f3 IN (SELECT * FROM t4);
+Note	1003	select `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2`,`test`.`t2`.`f3` AS `f3`,`test`.`t3`.`f3` AS `f3` from `test`.`t1` semi join (`test`.`t4`) join `test`.`t2` join `test`.`t3` where `test`.`t3`.`f1` = `test`.`t1`.`f1` and `test`.`t1`.`f2` = `test`.`t2`.`f2` and (`test`.`t4`.`f2` = 0 or `test`.`t4`.`f2` is null)
+SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE t2.f3 IN (SELECT * FROM t4 where f2 = 0 or f2 IS NULL);
 f1	f2	f3	f3
 2	0	0	0
 4	0	0	0
 4	0	0	0
-drop view v4;
 drop table t1, t2, t3, t4;
 #
 # BUG#803303: Wrong result with semijoin=on, outer join in maria-5.3-subqueries-mwl90
@@ -2101,9 +2101,9 @@ explain
 SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE IFNULL(t2.f3,'foo') IN (SELECT * FROM t4);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	
-1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
-1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	5	Using where; Using join buffer (incremental, BNL join)
-1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	2	Using where; Start temporary; End temporary; Using join buffer (incremental, BNL join)
+1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	2	Start temporary; Using join buffer (flat, BNL join)
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (incremental, BNL join)
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	5	Using where; End temporary; Using join buffer (incremental, BNL join)
 SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3 ) WHERE IFNULL(t2.f3,'foo') IN (SELECT * FROM t4);
 f1	f2	f3	f3
 2	0	0	0
@@ -2164,8 +2164,8 @@ INSERT INTO t3 VALUES (6,5),(6,2),(8,0),(9,1),(6,5);
 explain 
 SELECT * FROM t1, t2 WHERE (t2.a , t1.b) IN (SELECT a, b FROM t3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
-1	PRIMARY	t3	ALL	b	NULL	NULL	NULL	5	Using where; Start temporary; Using join buffer (flat, BNL join)
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	Using where
+1	PRIMARY	t3	ref	b	b	5	test.t1.b	2	Start temporary; Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
 1	PRIMARY	t2	index	PRIMARY	PRIMARY	4	NULL	2	Using where; Using index; End temporary; Using join buffer (incremental, BNL join)
 SELECT * FROM t1, t2 WHERE (t2.a , t1.b) IN (SELECT a, b FROM t3);
 b	a
@@ -2189,10 +2189,10 @@ INSERT INTO t5 VALUES (7,0),(9,0);
 explain
 SELECT * FROM t3 WHERE t3.a IN (SELECT t5.a FROM t2, t4, t5 WHERE t2.c = t5.a AND t2.b = t5.b);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t5	index	a	a	10	NULL	2	Using where; Using index; Start temporary
-1	PRIMARY	t2	ref	b	b	5	test.t5.b	2	Using where; Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
-1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	3	Using join buffer (incremental, BNL join)
-1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	15	Using where; End temporary; Using join buffer (incremental, BNL join)
+1	PRIMARY	t5	index	a	a	10	NULL	2	Using where; Using index; LooseScan
+1	PRIMARY	t2	ref	b	b	5	test.t5.b	2	Using where
+1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	3	FirstMatch(t5)
+1	PRIMARY	t3	ALL	NULL	NULL	NULL	NULL	15	Using where; Using join buffer (flat, BNL join)
 SELECT * FROM t3 WHERE t3.a IN (SELECT t5.a FROM t2, t4, t5 WHERE t2.c = t5.a AND t2.b = t5.b);
 a
 0
@@ -2361,8 +2361,8 @@ SELECT * FROM t1 WHERE (a) IN (SELECT a FROM t2 JOIN t3 ON b = a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	9	
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	13	
-2	MATERIALIZED	t2	index	b	b	8	NULL	7	Using where; Using index; Using join buffer (flat, BNL join)
+2	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	13	Using where
+2	MATERIALIZED	t2	ref	b	b	4	test.t3.a	1	Using index
 SELECT * FROM t1 WHERE (a) IN (SELECT a FROM t2 JOIN t3 ON b = a);
 a
 19
@@ -2510,10 +2510,9 @@ SELECT * FROM t1, t2
 WHERE t1.a = t2.a AND t2.a IN (SELECT b FROM t3 STRAIGHT_JOIN t4);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t3	system	NULL	NULL	NULL	NULL	1	
-1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	1	
-1	PRIMARY	t1	ref	a	a	5	const	1	Using index
-1	PRIMARY	t2	ref	a	a	5	func	1	Using index
-2	MATERIALIZED	t4	ALL	NULL	NULL	NULL	NULL	0	
+1	PRIMARY	t2	ref	a	a	5	const	1	Using index
+1	PRIMARY	t4	ALL	NULL	NULL	NULL	NULL	0	FirstMatch(t2); Using join buffer (flat, BNL join)
+1	PRIMARY	t1	ref	a	a	5	func	1	Using index
 SELECT * FROM t1, t2
 WHERE t1.a = t2.a AND t2.a IN (SELECT b FROM t3 STRAIGHT_JOIN t4);
 a	a
@@ -2585,16 +2584,18 @@ SELECT a, b, d FROM t1, t2
 WHERE ( b, d ) IN
 ( SELECT b, d FROM t1, t2 WHERE b = c );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	7	
-1	PRIMARY	t1	index	b	b	5	NULL	10	Using where; Using index; LooseScan
-1	PRIMARY	t2	ref	c	c	5	test.t1.b	1	Using where; FirstMatch(t1)
-1	PRIMARY	t1	ref	b	b	5	test.t1.b	2	Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
+1	PRIMARY	t1	index	b	b	5	NULL	10	Using where; Using index; Start temporary
+1	PRIMARY	t2	ref	c	c	5	test.t1.b	1	Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
+1	PRIMARY	t1	ref	b	b	5	test.t1.b	2	Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	7	Using where; End temporary; Using join buffer (incremental, BNL join)
 SELECT a, b, d FROM t1, t2
 WHERE ( b, d ) IN
 ( SELECT b, d FROM t1, t2 WHERE b = c );
 a	b	d
 1	2	1
 1	2	1
+10	2	1
+10	2	1
 2	1	2
 2	1	2
 3	3	3
@@ -2610,8 +2611,6 @@ a	b	d
 8	4	2
 9	3	3
 9	3	3
-10	2	1
-10	2	1
 DROP TABLE t1, t2;
 # Another testcase for the above that still uses LooseScan:
 create table t0(a int primary key);
@@ -2779,22 +2778,22 @@ SELECT * FROM t1 AS t1_1, t1 AS t1_2
 WHERE (t1_1.a, t1_2.a) IN ( SELECT a, b FROM v1 );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1_1	ALL	NULL	NULL	NULL	NULL	11	Using where
-1	PRIMARY	t1_2	ALL	NULL	NULL	NULL	NULL	11	
-1	PRIMARY	<derived3>	ref	key0	key0	5	test.t1_1.a	2	Using where; FirstMatch(t1_2)
+1	PRIMARY	<derived3>	ref	key0	key0	5	test.t1_1.a	2	Start temporary
+1	PRIMARY	t1_2	ALL	NULL	NULL	NULL	NULL	11	Using where; End temporary
 3	DERIVED	t1	ALL	NULL	NULL	NULL	NULL	11	
 SELECT * FROM t1 AS t1_1, t1 AS t1_2
 WHERE (t1_1.a, t1_2.a) IN ( SELECT a, b FROM v1 );
 a	b	a	b
-3	1	9	1
-5	8	4	0
-3	9	9	1
 2	4	4	0
 2	4	6	8
 2	6	4	0
 2	6	6	8
+3	1	9	1
+3	9	9	1
 5	4	4	0
-7	7	7	7
 5	4	4	0
+5	8	4	0
+7	7	7	7
 DROP VIEW v1;
 DROP TABLE t1;
 set @@join_cache_level= @tmp_jcl_978479;
@@ -2938,9 +2937,9 @@ alias2.col_int_key = alias1.col_int_key
 WHERE alias1.pk = 58 OR alias1.col_varchar_key = 'o'
 );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	alias1	index_merge	PRIMARY,col_int_key,col_varchar_key	PRIMARY,col_varchar_key	4,4	NULL	2	Using sort_union(PRIMARY,col_varchar_key); Using where; Start temporary
-1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
-1	PRIMARY	alias2	ALL	col_int_key	NULL	NULL	NULL	12	Range checked for each record (index map: 0x2); End temporary
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	
+1	PRIMARY	alias1	index_merge	PRIMARY,col_int_key,col_varchar_key	PRIMARY,col_varchar_key	4,4	NULL	2	Using sort_union(PRIMARY,col_varchar_key); Using where
+1	PRIMARY	alias2	ALL	col_int_key	NULL	NULL	NULL	12	Range checked for each record (index map: 0x2); FirstMatch(t2)
 SELECT *
 FROM t2
 WHERE (field1) IN (SELECT alias1.col_varchar_nokey AS field1
@@ -3300,8 +3299,7 @@ explain extended
 SELECT Id FROM t1 WHERE Id in (SELECT t1_Id  FROM t2 WHERE t2.col1 IS NULL);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	system	PRIMARY	NULL	NULL	NULL	1	100.00	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-2	MATERIALIZED	t2	ref	col1	col1	5	const	2	100.00	Using index condition; Using where
+1	PRIMARY	t2	ALL	col1	NULL	NULL	NULL	2	100.00	Using where; FirstMatch(t1)
 Warnings:
 Note	1003	select 1 AS `Id` from (`test`.`t2`) where `test`.`t2`.`t1_Id` = 1 and `test`.`t2`.`col1` is null
 DROP TABLE t1, t2;
diff --git a/mysql-test/main/subselect_sj_mat.result b/mysql-test/main/subselect_sj_mat.result
index 4c88d3a78f1..ea6d8003be5 100644
--- a/mysql-test/main/subselect_sj_mat.result
+++ b/mysql-test/main/subselect_sj_mat.result
@@ -107,9 +107,9 @@ a1	a2
 explain extended
 select * from t1i where a1 in (select b1 from t2i where b1 > '0');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1i	range	_it1_idx	_it1_idx	#	NULL	3	100.00	Using where; 
+1	PRIMARY	t1i	index	_it1_idx	_it1_idx	#	NULL	3	100.00	
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	#	func	1	100.00	
-2	MATERIALIZED	t2i	range	it2i1,it2i3	it2i1	#	NULL	5	100.00	Using where; 
+2	MATERIALIZED	t2i	index	it2i1,it2i3	it2i1	#	NULL	5	100.00	Using where; 
 Warnings:
 Note	1003	select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) where `test`.`t2i`.`b1` > '0'
 select * from t1i where a1 in (select b1 from t2i where b1 > '0');
@@ -131,9 +131,9 @@ a1	a2
 explain extended
 select * from t1i where (a1, a2) in (select b1, b2 from t2i where b1 > '0');
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1i	range	_it1_idx	_it1_idx	#	NULL	3	100.00	Using where; 
+1	PRIMARY	t1i	index	_it1_idx	_it1_idx	#	NULL	3	100.00	
 1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	#	func,func	1	100.00	
-2	MATERIALIZED	t2i	range	it2i1,it2i2,it2i3	it2i3	#	NULL	5	100.00	Using where; 
+2	MATERIALIZED	t2i	index	it2i1,it2i2,it2i3	it2i3	#	NULL	5	100.00	Using where; 
 Warnings:
 Note	1003	select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) where `test`.`t2i`.`b1` > '0'
 select * from t1i where (a1, a2) in (select b1, b2 from t2i where b1 > '0');
@@ -278,10 +278,11 @@ a1	a2
 explain extended
 select * from t1i where (a1, a2) in (select b1, b2 from t2i order by b1, b2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t2i	index	it2i1,it2i2,it2i3	it2i3	18	NULL	5	50.00	Using where; Using index; LooseScan
-1	PRIMARY	t1i	ref	it1i1,it1i2,it1i3	it1i3	18	test.t2i.b1,test.t2i.b2	1	100.00	Using index
+1	PRIMARY	t1i	index	it1i1,it1i2,it1i3	it1i3	18	NULL	3	100.00	Using index
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	16	func,func	1	100.00	
+2	MATERIALIZED	t2i	index	it2i1,it2i2,it2i3	it2i3	18	NULL	5	100.00	Using index
 Warnings:
-Note	1003	select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) where `test`.`t1i`.`a1` = `test`.`t2i`.`b1` and `test`.`t1i`.`a2` = `test`.`t2i`.`b2`
+Note	1003	select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) where 1
 select * from t1i where (a1, a2) in (select b1, b2 from t2i order by b1, b2);
 a1	a2
 1 - 01	2 - 01
@@ -352,14 +353,12 @@ where (a1, a2) in (select b1, b2 from t2i where b1 >  '0') and
 (a1, a2) in (select c1, c2 from t3i
 where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	t1i	range	it1i1,it1i2,it1i3	#	#	#	3	100.00	#
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	#	#	#	1	100.00	#
-1	PRIMARY	<subquery3>	eq_ref	distinct_key	#	#	#	1	100.00	#
-2	MATERIALIZED	t2i	range	it2i1,it2i2,it2i3	#	#	#	5	100.00	#
-3	MATERIALIZED	t3i	range	it3i1,it3i2,it3i3	#	#	#	4	100.00	#
-3	MATERIALIZED	t2i	ref	it2i1,it2i2,it2i3	#	#	#	1	100.00	#
+1	PRIMARY	t2i	index	it2i1,it2i2,it2i3	#	#	#	5	50.00	#
+1	PRIMARY	t1i	ref	it1i1,it1i2,it1i3	#	#	#	1	100.00	#
+1	PRIMARY	t3i	ref	it3i1,it3i2,it3i3	#	#	#	1	100.00	#
+1	PRIMARY	t2i	ref	it2i1,it2i2,it2i3	#	#	#	1	100.00	#
 Warnings:
-Note	1003	select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) semi join (`test`.`t2i` join `test`.`t3i`) where `test`.`t2i`.`b1` = `test`.`t3i`.`c1` and `test`.`t2i`.`b2` = `test`.`t3i`.`c2` and `test`.`t2i`.`b1` > '0' and `test`.`t3i`.`c2` > '0'
+Note	1003	select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) semi join (`test`.`t2i` join `test`.`t3i`) where `test`.`t1i`.`a1` = `test`.`t2i`.`b1` and `test`.`t3i`.`c1` = `test`.`t2i`.`b1` and `test`.`t2i`.`b1` = `test`.`t2i`.`b1` and `test`.`t1i`.`a2` = `test`.`t2i`.`b2` and `test`.`t3i`.`c2` = `test`.`t2i`.`b2` and `test`.`t2i`.`b2` = `test`.`t2i`.`b2` and `test`.`t2i`.`b1` > '0' and `test`.`t2i`.`b2` > '0'
 select * from t1i
 where (a1, a2) in (select b1, b2 from t2i where b1 >  '0') and
 (a1, a2) in (select c1, c2 from t3i
@@ -442,15 +441,13 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 5	MATERIALIZED	t2i	ref	it2i1,it2i2,it2i3	#	#	#	1	100.00	#
 4	MATERIALIZED	t3	ALL	NULL	#	#	#	4	100.00	#
 3	MATERIALIZED	t3	ALL	NULL	#	#	#	4	100.00	#
-7	UNION	t1i	range	it1i1,it1i2,it1i3	#	#	#	3	100.00	#
-7	UNION	<subquery8>	eq_ref	distinct_key	#	#	#	1	100.00	#
-7	UNION	<subquery9>	eq_ref	distinct_key	#	#	#	1	100.00	#
-8	MATERIALIZED	t2i	range	it2i1,it2i2,it2i3	#	#	#	5	100.00	#
-9	MATERIALIZED	t3i	range	it3i1,it3i2,it3i3	#	#	#	4	100.00	#
-9	MATERIALIZED	t2i	ref	it2i1,it2i2,it2i3	#	#	#	1	100.00	#
+7	UNION	t2i	index	it2i1,it2i2,it2i3	#	#	#	5	50.00	#
+7	UNION	t1i	ref	it1i1,it1i2,it1i3	#	#	#	1	100.00	#
+7	UNION	t3i	ref	it3i1,it3i2,it3i3	#	#	#	1	100.00	#
+7	UNION	t2i	ref	it2i1,it2i2,it2i3	#	#	#	1	100.00	#
 NULL	UNION RESULT	<union1,7>	ALL	NULL	#	#	#	NULL	NULL	#
 Warnings:
-Note	1003	(/* select#1 */ select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3`) where `test`.`t2i`.`b1` = `test`.`t3`.`c1` and `test`.`t2i`.`b2` = `test`.`t3`.`c2` and (<expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (/* select#3 */ select `test`.`t3`.`c2` from `test`.`t3` where `test`.`t3`.`c2` like '%02' ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where `test`.`t2`.`b2` = `<subquery3>`.`c2`)))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (/* select#4 */ select `test`.`t3`.`c2` from `test`.`t3` where `test`.`t3`.`c2` like '%03' ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where `test`.`t2`.`b2` = `<subquery4>`.`c2`))))) and `test`.`t3`.`c2` > '0') union (/* select#7 */ select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) semi join (`test`.`t2i` join `test`.`t3i`) where `test`.`t2i`.`b1` = `test`.`t3i`.`c1` and `test`.`t2i`.`b2` = `test`.`t3i`.`c2` and `test`.`t2i`.`b1` > '0' and `test`.`t3i`.`c2` > '0')
+Note	1003	(/* select#1 */ select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) semi join (`test`.`t2i` join `test`.`t3`) where `test`.`t2i`.`b1` = `test`.`t3`.`c1` and `test`.`t2i`.`b2` = `test`.`t3`.`c2` and (<expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (/* select#3 */ select `test`.`t3`.`c2` from `test`.`t3` where `test`.`t3`.`c2` like '%02' ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where `test`.`t2`.`b2` = `<subquery3>`.`c2`)))) or <expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (/* select#4 */ select `test`.`t3`.`c2` from `test`.`t3` where `test`.`t3`.`c2` like '%03' ), <primary_index_lookup>(`test`.`t2`.`b2` in <temporary table> on distinct_key where `test`.`t2`.`b2` = `<subquery4>`.`c2`))))) and `test`.`t3`.`c2` > '0') union (/* select#7 */ select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from `test`.`t1i` semi join (`test`.`t2i`) semi join (`test`.`t2i` join `test`.`t3i`) where `test`.`t1i`.`a1` = `test`.`t2i`.`b1` and `test`.`t3i`.`c1` = `test`.`t2i`.`b1` and `test`.`t2i`.`b1` = `test`.`t2i`.`b1` and `test`.`t1i`.`a2` = `test`.`t2i`.`b2` and `test`.`t3i`.`c2` = `test`.`t2i`.`b2` and `test`.`t2i`.`b2` = `test`.`t2i`.`b2` and `test`.`t2i`.`b1` > '0' and `test`.`t2i`.`b2` > '0')
 (select * from t1
 where (a1, a2) in (select b1, b2 from t2
 where b2 in (select c2 from t3 where c2 LIKE '%02') or
@@ -1573,8 +1570,7 @@ SET @@optimizer_switch='semijoin=on,materialization=on';
 EXPLAIN SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	t2	range	PRIMARY	PRIMARY	4	NULL	2	Using index condition; Using where; Rowid-ordered scan
+1	PRIMARY	t2	ALL	PRIMARY	NULL	NULL	NULL	2	Using where; FirstMatch(t1); Using join buffer (flat, BNL join)
 SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
 pk
 2
@@ -1993,11 +1989,11 @@ EXPLAIN EXTENDED
 SELECT * FROM t1
 WHERE a IN (SELECT MAX(c) FROM t2) AND b=7 AND (a IS NULL OR a=b);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	4	const	1	100.00	
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where
+1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	4	const	1	100.00	Using where
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	
 Warnings:
-Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from  <materialize> (/* select#2 */ select max(`test`.`t2`.`c`) from `test`.`t2` having `MAX(c)` is null or `MAX(c)` = 7) join `test`.`t1` where `test`.`t1`.`b` = 7 and `test`.`t1`.`a` = `<subquery2>`.`MAX(c)` and (<cache>(/*always not null*/ 1 is null) or `<subquery2>`.`MAX(c)` = 7)
+Note	1003	/* select#1 */ select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from  <materialize> (/* select#2 */ select max(`test`.`t2`.`c`) from `test`.`t2` having `MAX(c)` is null or `MAX(c)` = 7) join `test`.`t1` where `test`.`t1`.`b` = 7 and `<subquery2>`.`MAX(c)` = `test`.`t1`.`a` and (`test`.`t1`.`a` is null or `test`.`t1`.`a` = 7)
 SELECT * FROM t1
 WHERE a IN (SELECT MAX(c) FROM t2) AND b=7 AND (a IS NULL OR a=b);
 a	b
@@ -2006,8 +2002,8 @@ EXPLAIN
 SELECT * FROM t1
 WHERE a IN (SELECT MAX(c) FROM t2 WHERE c < 4) AND b=7 AND (a IS NULL OR a=b);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	4	const	1	
-1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	3	Using where
+1	PRIMARY	<subquery2>	const	distinct_key	distinct_key	4	const	1	Using where
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	Using where
 SELECT * FROM t1
 WHERE a IN (SELECT MAX(c) FROM t2 WHERE c < 4) AND b=7 AND (a IS NULL OR a=b);
@@ -2283,9 +2279,8 @@ WHERE EXISTS ( SELECT * FROM t1 AS sq2
 WHERE sq1.`pk` IN ( SELECT f1 FROM t1 ) AND sq2.f1 = sq1.f1 );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	sq1	ALL	NULL	NULL	NULL	NULL	2	Using where
-2	DEPENDENT SUBQUERY	sq2	ALL	NULL	NULL	NULL	NULL	2	Using where
-2	DEPENDENT SUBQUERY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	
-3	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	2	
+2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	Using where; FirstMatch
+2	DEPENDENT SUBQUERY	sq2	ALL	NULL	NULL	NULL	NULL	2	Using where; Using join buffer (flat, BNL join)
 # this checks the result set above
 set optimizer_switch= 'materialization=off,semijoin=off';
 SELECT sq1.f2    FROM t1 AS sq1
@@ -2317,10 +2312,9 @@ WHERE EXISTS ( SELECT * FROM t2, t3
 WHERE i3 = i2 AND f1 IN ( SELECT f3 FROM t3 ) );
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
-2	DEPENDENT SUBQUERY	t2	index	i2	i2	5	NULL	3	100.00	Using where; Using index
-2	DEPENDENT SUBQUERY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
+2	DEPENDENT SUBQUERY	t3	ALL	NULL	NULL	NULL	NULL	8	100.00	Using where; FirstMatch
+2	DEPENDENT SUBQUERY	t2	index	i2	i2	5	NULL	3	100.00	Using where; Using index; Using join buffer (flat, BNL join)
 2	DEPENDENT SUBQUERY	t3	ref	i3	i3	5	test.t2.i2	2	100.00	Using index
-3	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	8	100.00	
 Warnings:
 Note	1276	Field or reference 'test.t1.f1' of SELECT #2 was resolved in SELECT #1
 Note	1003	/* select#1 */ select `test`.`t1`.`f1` AS `f1` from `test`.`t1` where <expr_cache><`test`.`t1`.`f1`>(exists(/* select#2 */ select 1 from `test`.`t2` semi join (`test`.`t3`) join `test`.`t3` where `test`.`t3`.`i3` = `test`.`t2`.`i2` and `test`.`t1`.`f1` = `test`.`t3`.`f3` limit 1))
@@ -2356,9 +2350,8 @@ SELECT pk, f1, ( SELECT COUNT(*) FROM t2
 WHERE t1.pk IN ( SELECT f2 FROM t2 ) ) AS sq FROM t1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	5	100.00	
-2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	5	100.00	
-2	DEPENDENT SUBQUERY	<subquery3>	eq_ref	distinct_key	distinct_key	4	func	1	100.00	
-3	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	5	100.00	
+2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	5	100.00	Using where; FirstMatch
+2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	5	100.00	Using join buffer (flat, BNL join)
 Warnings:
 Note	1276	Field or reference 'test.t1.pk' of SELECT #2 was resolved in SELECT #1
 Note	1003	/* select#1 */ select `test`.`t1`.`pk` AS `pk`,`test`.`t1`.`f1` AS `f1`,<expr_cache><`test`.`t1`.`pk`>((/* select#2 */ select count(0) from `test`.`t2` semi join (`test`.`t2`) where `test`.`t1`.`pk` = `test`.`t2`.`f2`)) AS `sq` from `test`.`t1`
@@ -2492,8 +2485,7 @@ explain
 SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	9	
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
-2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	Using where
+1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	3	Using where; FirstMatch(t1); Using join buffer (flat, BNL join)
 SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
 1
 1
@@ -2504,8 +2496,8 @@ alter table t1 add key(id);
 explain
 SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	
-1	PRIMARY	t1	ref	id	id	4	test.t2.i1	2	Using index
+1	PRIMARY	t1	index	id	id	4	NULL	9	Using index
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	Using where
 SELECT 1 FROM t1 where t1.id IN (SELECT t2.i1 FROM t2 WHERE t2.i1 = t2.i2);
 1
@@ -2561,8 +2553,8 @@ INSERT INTO t2 VALUES  (11,11),(12,12),(13,13);
 CREATE VIEW v1 AS SELECT t2.i1 FROM t2 where t2.i1 = t2.i2;
 explain SELECT 1 FROM t1 where t1.id IN (SELECT v1.i1 from v1);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	3	
-1	PRIMARY	t1	ref	id	id	4	test.t2.i1	2	Using index
+1	PRIMARY	t1	index	id	id	4	NULL	9	Using index
+1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	func	1	
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	3	Using where
 SELECT 1 FROM t1 where t1.id IN (SELECT v1.i1 from v1);
 1
diff --git a/mysql-test/main/subselect_sj_nonmerged.result b/mysql-test/main/subselect_sj_nonmerged.result
index a3e6c493930..99ce641da8e 100644
--- a/mysql-test/main/subselect_sj_nonmerged.result
+++ b/mysql-test/main/subselect_sj_nonmerged.result
@@ -47,8 +47,8 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 # Compare to this which really will have 50 record combinations:
 explain select * from t3 where a in (select max(t2.a) from t1, t2 group by t2.b, t1.b);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t3	index	PRIMARY	PRIMARY	8	NULL	100	Using index
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	test.t3.a	1	Using where
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	50	
+1	PRIMARY	t3	eq_ref	PRIMARY	PRIMARY	8	<subquery2>.max(t2.a)	1	Using where; Using index
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	5	Using temporary
 2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	10	Using join buffer (flat, BNL join)
 SET @save_optimizer_switch=@@optimizer_switch;
@@ -57,8 +57,8 @@ SET optimizer_switch='outer_join_with_cache=off';
 explain select * from t3 
 where a in (select max(t2.a) from t1 left join t2 on t1.a=t2.a group by t2.b, t1.b);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	t3	index	PRIMARY	PRIMARY	8	NULL	100	Using index
-1	PRIMARY	<subquery2>	eq_ref	distinct_key	distinct_key	4	test.t3.a	1	Using where
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	50	
+1	PRIMARY	t3	eq_ref	PRIMARY	PRIMARY	8	<subquery2>.max(t2.a)	1	Using where; Using index
 2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	10	Using temporary
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	5	Using where
 SET optimizer_switch=@save_optimizer_switch;
@@ -67,8 +67,8 @@ insert into t4 select A.a + 10*B.a, A.a + 10*B.a, 'filler' from t0 A, t0 B;
 explain select * from t0, t4 where 
 t4.b=t0.a and t4.a in (select max(t2.a) from t1, t2 group by t2.b);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	5	
-1	PRIMARY	t0	ALL	NULL	NULL	NULL	NULL	10	Using where; Using join buffer (flat, BNL join)
+1	PRIMARY	t0	ALL	NULL	NULL	NULL	NULL	10	Using where
+1	PRIMARY	<subquery2>	ALL	distinct_key	NULL	NULL	NULL	5	Using join buffer (flat, BNL join)
 1	PRIMARY	t4	eq_ref	a	a	10	<subquery2>.max(t2.a),test.t0.a	1	
 2	MATERIALIZED	t2	ALL	NULL	NULL	NULL	NULL	5	Using temporary
 2	MATERIALIZED	t1	ALL	NULL	NULL	NULL	NULL	10	Using join buffer (flat, BNL join)
diff --git a/mysql-test/main/table_elim.result b/mysql-test/main/table_elim.result
index 4b9956a4e48..b17cbfeeb07 100644
--- a/mysql-test/main/table_elim.result
+++ b/mysql-test/main/table_elim.result
@@ -337,7 +337,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 explain select t1.a from t1 left join t2 on t2.pk between 0.5 and 1.5;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	4	
-1	SIMPLE	t2	range	PRIMARY	PRIMARY	4	NULL	2	Using where; Using index
+1	SIMPLE	t2	index	PRIMARY	PRIMARY	4	NULL	2	Using where; Using index
 explain select t1.a from t1 left join t2 on t2.pk between 10 and 10;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	4	
@@ -408,7 +408,7 @@ select t1.*
 from t1 left join t2 on t2.pk=3 or t2.pk= 4;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	4	
-1	SIMPLE	t2	range	PRIMARY	PRIMARY	4	NULL	2	Using where; Using index
+1	SIMPLE	t2	index	PRIMARY	PRIMARY	4	NULL	2	Using where; Using index
 explain 
 select t1.* 
 from t1 left join t2 on t2.pk=3 or t2.pk= 3;
@@ -419,7 +419,7 @@ select t1.*
 from t1 left join t2 on (t2.pk=3 and t2.b=3) or (t2.pk= 4 and t2.b=3);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	4	
-1	SIMPLE	t2	range	PRIMARY	PRIMARY	4	NULL	2	Using where
+1	SIMPLE	t2	ALL	PRIMARY	NULL	NULL	NULL	2	Using where
 drop table t1, t2;
 #
 # LPBUG#523593: Running RQG optimizer_no_subquery crashes MariaDB
@@ -562,10 +562,7 @@ LEFT JOIN t1 ON t4.f1 = t1.f1
 JOIN t5 ON t4.f3 ON t3.f1 = t5.f5 ON t2.f4 = t3.f4
 WHERE t3.f2 ;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	2	Using where
-1	SIMPLE	t2	ref	f4	f4	1003	test.t3.f4	2	Using where
-1	SIMPLE	t5	ref	f5	f5	5	test.t3.f1	2	Using where; Using index
-1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	3	Using where
+1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE noticed after reading const tables
 # ^^ The above must not produce a QEP of t3,t5,t2,t4
 #    as that violates the "no interleaving of outer join nests" rule.
 DROP TABLE t1,t2,t3,t4,t5;
diff --git a/mysql-test/main/table_value_constr.result b/mysql-test/main/table_value_constr.result
index e6d973d53ee..75333b65f71 100644
--- a/mysql-test/main/table_value_constr.result
+++ b/mysql-test/main/table_value_constr.result
@@ -567,12 +567,12 @@ where t1.a=t2.a and st<3
 select * from t2;
 a	b	st
 1	1	1
-1	2	2
 1	1	2
-1	2	3
-1	2	3
 1	1	3
 1	1	3
+1	2	2
+1	2	3
+1	2	3
 # recursive CTE that uses VALUES structure(s) : computation of factorial (first 10 elements)
 with recursive fact(n,f) as
 (
diff --git a/mysql-test/main/table_value_constr.test b/mysql-test/main/table_value_constr.test
index 331cfb8b7db..8fa443c3b77 100644
--- a/mysql-test/main/table_value_constr.test
+++ b/mysql-test/main/table_value_constr.test
@@ -422,6 +422,7 @@ select * from t2;
 
 --echo # recursive CTE that uses VALUES structure(s) : that uses UNION ALL
 
+--sorted_result
 with recursive t2(a,b,st) as
 (
   values(1,1,1)
diff --git a/mysql-test/main/tmp_table_count-7586.result b/mysql-test/main/tmp_table_count-7586.result
index 637e7385685..ebb2333113f 100644
--- a/mysql-test/main/tmp_table_count-7586.result
+++ b/mysql-test/main/tmp_table_count-7586.result
@@ -52,6 +52,7 @@ Created_tmp_disk_tables	0
 Created_tmp_files	0
 Created_tmp_tables	2
 drop table t3;
+set @@optimizer_switch="firstmatch=off";
 EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	
@@ -69,6 +70,7 @@ Variable_name	Value
 Created_tmp_disk_tables	0
 Created_tmp_files	0
 Created_tmp_tables	1
+set @@optimizer_switch=default;
 drop table t1,t2,t3;
 truncate table performance_schema.events_statements_history_long;
 flush status;
diff --git a/mysql-test/main/tmp_table_count-7586.test b/mysql-test/main/tmp_table_count-7586.test
index 0629e27f164..8fe9e3d2eff 100644
--- a/mysql-test/main/tmp_table_count-7586.test
+++ b/mysql-test/main/tmp_table_count-7586.test
@@ -47,6 +47,7 @@ select sum(created_tmp_tables) from performance_schema.events_statements_history
 show status like '%Created_tmp%';
 drop table t3;
 
+set @@optimizer_switch="firstmatch=off";
 EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a);
 truncate table performance_schema.events_statements_history_long;
 flush status;
@@ -54,6 +55,7 @@ CREATE TABLE t3 SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a);
 --echo # Performance schema should be the same as "Created_tmp_tables" variable below
 select sum(created_tmp_tables) from performance_schema.events_statements_history_long;
 show status like '%Created_tmp%';
+set @@optimizer_switch=default;
 
 drop table t1,t2,t3;
 
diff --git a/mysql-test/main/type_blob.result b/mysql-test/main/type_blob.result
index 851d0bd72d4..abde3db7fac 100644
--- a/mysql-test/main/type_blob.result
+++ b/mysql-test/main/type_blob.result
@@ -625,7 +625,7 @@ id	txt
 3	NULL
 explain select * from t1 where txt='Chevy' or txt is NULL;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref_or_null	txt_index	txt_index	23	const	3	Using where
+1	SIMPLE	t1	ALL	txt_index	NULL	NULL	NULL	6	Using where
 explain select * from t1 FORCE INDEX (`txt_index`) where txt='Chevy' or txt is NULL;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ref_or_null	txt_index	txt_index	23	const	3	Using where
diff --git a/mysql-test/main/type_datetime.result b/mysql-test/main/type_datetime.result
index 3e864d0ffa9..c4568e80ae6 100644
--- a/mysql-test/main/type_datetime.result
+++ b/mysql-test/main/type_datetime.result
@@ -105,7 +105,7 @@ date	numfacture	expedition
 0000-00-00 00:00:00	1212	0001-00-00 00:00:00
 EXPLAIN SELECT * FROM t1 WHERE expedition='0001-00-00 00:00:00';
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	expedition	expedition	5	const	2	
+1	SIMPLE	t1	ALL	expedition	NULL	NULL	NULL	2	Using where
 drop table t1;
 create table t1 (a datetime not null, b datetime not null);
 insert into t1 values (now(), now());
@@ -545,7 +545,7 @@ select * from t1
 where id in (select id from t1 as x1 where (t1.cur_date is null));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
-1	PRIMARY	x1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Start temporary; End temporary
+1	PRIMARY	x1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; FirstMatch(t1)
 Warnings:
 Note	1276	Field or reference 'test.t1.cur_date' of SELECT #2 was resolved in SELECT #1
 Note	1003	select `test`.`t1`.`id` AS `id`,`test`.`t1`.`cur_date` AS `cur_date` from `test`.`t1` semi join (`test`.`t1` `x1`) where `test`.`x1`.`id` = `test`.`t1`.`id` and `test`.`t1`.`cur_date` = 0
@@ -557,7 +557,7 @@ select * from t2
 where id in (select id from t2 as x1 where (t2.cur_date is null));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 1	PRIMARY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
-1	PRIMARY	x1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; Start temporary; End temporary
+1	PRIMARY	x1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where; FirstMatch(t2)
 Warnings:
 Note	1276	Field or reference 'test.t2.cur_date' of SELECT #2 was resolved in SELECT #1
 Note	1003	select `test`.`t2`.`id` AS `id`,`test`.`t2`.`cur_date` AS `cur_date` from `test`.`t2` semi join (`test`.`t2` `x1`) where `test`.`x1`.`id` = `test`.`t2`.`id` and `test`.`t2`.`cur_date` = 0
diff --git a/mysql-test/main/user_var.result b/mysql-test/main/user_var.result
index a5837996c19..ae0621a3b57 100644
--- a/mysql-test/main/user_var.result
+++ b/mysql-test/main/user_var.result
@@ -22,7 +22,7 @@ i	@vv1:=if(sv1.i,1,0)	@vv2:=if(sv2.i,1,0)	@vv3:=if(sv3.i,1,0)	@vv1+@vv2+@vv3
 2	1	0	0	1
 explain select * from t1 where i=@vv1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	i	i	4	const	2	
+1	SIMPLE	t1	ALL	i	NULL	NULL	NULL	3	Using where
 select @vv1,i,v from t1 where i=@vv1;
 @vv1	i	v
 1	1	1
@@ -35,7 +35,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	index	NULL	i	4	NULL	3	Using where; Using index
 explain select * from t1 where i=@vv1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref	i	i	4	const	2	
+1	SIMPLE	t1	ALL	i	NULL	NULL	NULL	3	Using where
 drop table t1,t2;
 set @a=0,@b=0;
 select @a:=10,   @b:=1,   @a > @b, @a < @b;
diff --git a/mysql-test/main/view.test b/mysql-test/main/view.test
index c6cc9a69f93..5b1a48f0f8a 100644
--- a/mysql-test/main/view.test
+++ b/mysql-test/main/view.test
@@ -1880,7 +1880,9 @@ CREATE VIEW v1 AS SELECT id, f FROM t1 WHERE id <= 2;
 INSERT INTO t1 VALUES (2, 'foo2');
 INSERT INTO t1 VALUES (1, 'foo1');
 
+--sorted_result
 SELECT * FROM v1;
+--sorted_result
 SELECT * FROM v1;
 
 DROP VIEW v1;
diff --git a/mysql-test/main/xtradb_mrr.result b/mysql-test/main/xtradb_mrr.result
index b4c91d9aff4..7d84f605e14 100644
--- a/mysql-test/main/xtradb_mrr.result
+++ b/mysql-test/main/xtradb_mrr.result
@@ -431,6 +431,12 @@ INSERT INTO `t1` VALUES (97,7,0,'z','z');
 INSERT INTO `t1` VALUES (98,1,1,'j','j');
 INSERT INTO `t1` VALUES (99,7,8,'c','c');
 INSERT INTO `t1` VALUES (100,2,5,'f','f');
+EXPLAIN SELECT table1 .`col_varchar_key`
+FROM t1 table1 STRAIGHT_JOIN ( t1 table3 JOIN t1 table4 ON table4 .`pk` = table3 .`col_int_nokey` ) ON table4 .`col_varchar_nokey` ;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	SIMPLE	table1	index	NULL	col_varchar_key	9	NULL	#	Using index
+1	SIMPLE	table3	ALL	NULL	NULL	NULL	NULL	#	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	table4	eq_ref	PRIMARY	PRIMARY	4	test.table3.col_int_nokey	#	Using where
 SELECT table1 .`col_varchar_key`
 FROM t1 table1 STRAIGHT_JOIN ( t1 table3 JOIN t1 table4 ON table4 .`pk` = table3 .`col_int_nokey` ) ON table4 .`col_varchar_nokey` ;
 col_varchar_key
diff --git a/mysql-test/main/xtradb_mrr.test b/mysql-test/main/xtradb_mrr.test
index 9de9b192b06..f5cecc54a3f 100644
--- a/mysql-test/main/xtradb_mrr.test
+++ b/mysql-test/main/xtradb_mrr.test
@@ -151,6 +151,9 @@ INSERT INTO `t1` VALUES (97,7,0,'z','z');
 INSERT INTO `t1` VALUES (98,1,1,'j','j');
 INSERT INTO `t1` VALUES (99,7,8,'c','c');
 INSERT INTO `t1` VALUES (100,2,5,'f','f');
+--replace_column 9 #
+EXPLAIN SELECT table1 .`col_varchar_key`
+FROM t1 table1 STRAIGHT_JOIN ( t1 table3 JOIN t1 table4 ON table4 .`pk` = table3 .`col_int_nokey` ) ON table4 .`col_varchar_nokey` ;
 SELECT table1 .`col_varchar_key`
 FROM t1 table1 STRAIGHT_JOIN ( t1 table3 JOIN t1 table4 ON table4 .`pk` = table3 .`col_int_nokey` ) ON table4 .`col_varchar_nokey` ;
 DROP TABLE t1;
-- 
cgit v1.2.1