diff options
| -rw-r--r-- | mysql-test/main/derived_cond_pushdown.result | 36 | ||||
| -rw-r--r-- | mysql-test/main/join_nested.result | 4 | ||||
| -rw-r--r-- | mysql-test/main/join_nested_jcl6.result | 6 | ||||
| -rw-r--r-- | mysql-test/main/opt_trace.result | 140 | ||||
| -rw-r--r-- | mysql-test/main/selectivity.result | 4 | ||||
| -rw-r--r-- | mysql-test/main/subselect3.result | 4 | ||||
| -rw-r--r-- | mysql-test/main/subselect3_jcl6.result | 4 | ||||
| -rw-r--r-- | mysql-test/main/subselect_sj.result | 4 | ||||
| -rw-r--r-- | mysql-test/main/subselect_sj2.result | 4 | ||||
| -rw-r--r-- | mysql-test/main/subselect_sj2_jcl6.result | 8 | ||||
| -rw-r--r-- | mysql-test/main/subselect_sj2_mat.result | 16 | ||||
| -rw-r--r-- | mysql-test/main/subselect_sj_jcl6.result | 4 | ||||
| -rw-r--r-- | sql/sql_select.cc | 41 |
13 files changed, 146 insertions, 129 deletions
diff --git a/mysql-test/main/derived_cond_pushdown.result b/mysql-test/main/derived_cond_pushdown.result index 275459bd868..d15f368e08d 100644 --- a/mysql-test/main/derived_cond_pushdown.result +++ b/mysql-test/main/derived_cond_pushdown.result @@ -3454,10 +3454,10 @@ a b max_c avg_c a b max_c avg_c a b min_c a b c d 6 20 315 279.3333 6 20 315 279.3333 6 20 214 6 20 315 279 6 20 315 279.3333 6 20 315 279.3333 8 33 114 8 80 800 314 6 20 315 279.3333 6 20 315 279.3333 6 20 214 6 23 303 909 -6 20 315 279.3333 8 33 404 213.6667 6 20 214 6 20 315 279 -6 20 315 279.3333 8 33 404 213.6667 6 20 214 6 23 303 909 8 33 404 213.6667 6 20 315 279.3333 8 33 114 8 64 248 107 8 33 404 213.6667 6 20 315 279.3333 8 33 114 8 80 800 314 +6 20 315 279.3333 8 33 404 213.6667 6 20 214 6 20 315 279 +6 20 315 279.3333 8 33 404 213.6667 6 20 214 6 23 303 909 8 33 404 213.6667 8 33 404 213.6667 7 11 708 7 13 312 406 8 33 404 213.6667 8 33 404 213.6667 8 33 114 8 64 248 107 8 33 404 213.6667 8 33 404 213.6667 6 20 214 6 20 315 279 @@ -3472,10 +3472,10 @@ a b max_c avg_c a b max_c avg_c a b min_c a b c d 6 20 315 279.3333 6 20 315 279.3333 6 20 214 6 20 315 279 6 20 315 279.3333 6 20 315 279.3333 8 33 114 8 80 800 314 6 20 315 279.3333 6 20 315 279.3333 6 20 214 6 23 303 909 -6 20 315 279.3333 8 33 404 213.6667 6 20 214 6 20 315 279 -6 20 315 279.3333 8 33 404 213.6667 6 20 214 6 23 303 909 8 33 404 213.6667 6 20 315 279.3333 8 33 114 8 64 248 107 8 33 404 213.6667 6 20 315 279.3333 8 33 114 8 80 800 314 +6 20 315 279.3333 8 33 404 213.6667 6 20 214 6 20 315 279 +6 20 315 279.3333 8 33 404 213.6667 6 20 214 6 23 303 909 8 33 404 213.6667 8 33 404 213.6667 7 11 708 7 13 312 406 8 33 404 213.6667 8 33 404 213.6667 8 33 114 8 64 248 107 8 33 404 213.6667 8 33 404 213.6667 6 20 214 6 20 315 279 @@ -3487,8 +3487,8 @@ and (v1.max_c<500) and (v3.a=t2.a) and (v2.max_c>300); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 9 Using where 1 PRIMARY <derived4> ref key0 key0 5 test.t2.a 2 Using where -1 PRIMARY <derived3> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join) -1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (incremental, BNL join) +1 PRIMARY <derived2> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join) +1 PRIMARY <derived3> ALL NULL NULL NULL NULL 20 Using where; Using join buffer (incremental, BNL join) 4 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort 3 DERIVED t1 ALL NULL NULL NULL NULL 20 Using where; Using temporary; Using filesort 2 DERIVED t1 ALL NULL NULL NULL NULL 20 Using temporary; Using filesort @@ -3538,19 +3538,19 @@ EXPLAIN }, "block-nl-join": { "table": { - "table_name": "<derived3>", + "table_name": "<derived2>", "access_type": "ALL", "rows": 20, "filtered": 100, - "attached_condition": "v2.max_c > 300" + "attached_condition": "v1.max_c < 500" }, "buffer_type": "flat", "buffer_size": "715", "join_type": "BNL", "materialized": { "query_block": { - "select_id": 3, - "having_condition": "max_c < 707 and max_c > 300", + "select_id": 2, + "having_condition": "max_c < 707 and max_c < 500", "filesort": { "sort_key": "t1.a, t1.b", "temporary_table": { @@ -3558,8 +3558,7 @@ EXPLAIN "table_name": "t1", "access_type": "ALL", "rows": 20, - "filtered": 100, - "attached_condition": "t1.a > 5" + "filtered": 100 } } } @@ -3568,20 +3567,20 @@ EXPLAIN }, "block-nl-join": { "table": { - "table_name": "<derived2>", + "table_name": "<derived3>", "access_type": "ALL", "rows": 20, "filtered": 100, - "attached_condition": "v1.max_c < 500" + "attached_condition": "v2.max_c > 300" }, "buffer_type": "incremental", "buffer_size": "9Kb", "join_type": "BNL", - "attached_condition": "v1.a = v2.a or v1.a = t2.a", + "attached_condition": "v2.a = v1.a or v1.a = t2.a", "materialized": { "query_block": { - "select_id": 2, - "having_condition": "max_c < 707 and max_c < 500", + "select_id": 3, + "having_condition": "max_c < 707 and max_c > 300", "filesort": { "sort_key": "t1.a, t1.b", "temporary_table": { @@ -3589,7 +3588,8 @@ EXPLAIN "table_name": "t1", "access_type": "ALL", "rows": 20, - "filtered": 100 + "filtered": 100, + "attached_condition": "t1.a > 5" } } } diff --git a/mysql-test/main/join_nested.result b/mysql-test/main/join_nested.result index b323190d8d5..0c7a1b48940 100644 --- a/mysql-test/main/join_nested.result +++ b/mysql-test/main/join_nested.result @@ -916,11 +916,11 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t6 ALL NULL NULL NULL NULL 3 100.00 Using where 1 SIMPLE t8 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t2 ALL NULL NULL NULL NULL 8 100.00 Using where -1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where +1 SIMPLE t4 ALL NULL NULL NULL NULL 2 100.00 Using where 1 SIMPLE t9 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, 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) 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)) on(`test`.`t7`.`b` = `test`.`t5`.`b` and `test`.`t6`.`b` >= 2)) 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`.`t3`.`b` = `test`.`t4`.`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) 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)) on(`test`.`t7`.`b` = `test`.`t5`.`b` and `test`.`t6`.`b` >= 2)) 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) 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); diff --git a/mysql-test/main/join_nested_jcl6.result b/mysql-test/main/join_nested_jcl6.result index f7d0242244d..31f5c794071 100644 --- a/mysql-test/main/join_nested_jcl6.result +++ b/mysql-test/main/join_nested_jcl6.result @@ -925,11 +925,11 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 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#$hj 5 test.t5.b 2 100.00 Using where; Using join buffer (incremental, BNLH join) 1 SIMPLE t2 ALL NULL NULL NULL NULL 8 100.00 Using where; Using join buffer (incremental, BNL join) -1 SIMPLE t4 hash_ALL NULL #hash#$hj 5 test.t2.b 2 100.00 Using where; Using join buffer (incremental, BNLH join) 1 SIMPLE 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`.`t3`.`b` = `test`.`t4`.`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`.`t9`.`b` = `test`.`t8`.`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); @@ -1027,8 +1027,8 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t3 ALL NULL NULL NULL NULL 2 100.00 Using where; Using join buffer (incremental, BNL join) 1 SIMPLE t4 ref idx_b idx_b 5 test.t2.b 2 100.00 Using where; Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan 1 SIMPLE t5 ALL idx_b NULL NULL NULL 7 100.00 Using where; Using join buffer (incremental, BNL join) -1 SIMPLE t6 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) 1 SIMPLE t8 ref idx_b idx_b 5 test.t5.b 2 100.00 Using where; Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan 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`.`t4`.`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`.`t8`.`a` >= 0 and `test`.`t5`.`b` is not null)) on(`test`.`t7`.`b` = `test`.`t5`.`b` and `test`.`t6`.`b` >= 2 and `test`.`t5`.`a` > 0 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) diff --git a/mysql-test/main/opt_trace.result b/mysql-test/main/opt_trace.result index 5504f4da81e..6d026bf7502 100644 --- a/mysql-test/main/opt_trace.result +++ b/mysql-test/main/opt_trace.result @@ -5495,6 +5495,11 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4) { "cost_for_plan": 451.8615234, "semijoin_strategy_choice": [ { + "strategy": "FirstMatch", + "records": 27, + "read_time": 665.225293 + }, + { "strategy": "DuplicateWeedout", "records": 27, "read_time": 565.2615234 @@ -5651,35 +5656,26 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4) { "t_outer_2", "t_inner_3" ], - "table": "t_inner_4", + "table": "t_inner_2", "best_access_path": { "considered_access_paths": [ { "access_type": "scan", - "resulting_rows": 3, - "cost": 2.005126953, + "resulting_rows": 9, + "cost": 2.015380859, "chosen": true } ], "chosen_access_method": { "type": "scan", - "records": 3, - "cost": 2.005126953, + "records": 9, + "cost": 2.015380859, "uses_join_buffering": true } }, - "rows_for_plan": 2187, - "cost_for_plan": 611.8461426, - "semijoin_strategy_choice": [ - { - "strategy": "FirstMatch", - "records": 81, - "read_time": 2232.809033 - }, - { - "chosen_strategy": "FirstMatch" - } - ], + "rows_for_plan": 6561, + "cost_for_plan": 1486.656396, + "semijoin_strategy_choice": [], "pruned_by_cost": true }, { @@ -5689,25 +5685,25 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4) { "t_outer_2", "t_inner_3" ], - "table": "t_inner_2", + "table": "t_inner_4", "best_access_path": { "considered_access_paths": [ { "access_type": "scan", - "resulting_rows": 9, - "cost": 2.015380859, + "resulting_rows": 3, + "cost": 2.005126953, "chosen": true } ], "chosen_access_method": { "type": "scan", - "records": 9, - "cost": 2.015380859, + "records": 3, + "cost": 2.005126953, "uses_join_buffering": true } }, - "rows_for_plan": 6561, - "cost_for_plan": 1486.656396, + "rows_for_plan": 2187, + "cost_for_plan": 611.8461426, "semijoin_strategy_choice": [], "pruned_by_cost": true } @@ -5740,7 +5736,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4) { "rest_of_plan": [ { "plan_prefix": ["t_outer_1", "t_inner_1", "t_inner_4"], - "table": "t_outer_2", + "table": "t_inner_2", "best_access_path": { "considered_access_paths": [ { @@ -5766,9 +5762,9 @@ 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_4", - "t_outer_2" + "t_inner_2" ], - "table": "t_inner_2", + "table": "t_outer_2", "best_access_path": { "considered_access_paths": [ { @@ -5795,7 +5791,7 @@ 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_4", - "t_outer_2" + "t_inner_2" ], "table": "t_inner_3", "best_access_path": { @@ -5823,7 +5819,7 @@ 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", + "table": "t_outer_2", "best_access_path": { "considered_access_paths": [ { @@ -5896,7 +5892,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4) { "rest_of_plan": [ { "plan_prefix": ["t_outer_1", "t_inner_1", "t_inner_3"], - "table": "t_outer_2", + "table": "t_inner_2", "best_access_path": { "considered_access_paths": [ { @@ -5922,27 +5918,27 @@ 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_3", - "t_outer_2" + "t_inner_2" ], - "table": "t_inner_4", + "table": "t_outer_2", "best_access_path": { "considered_access_paths": [ { "access_type": "scan", - "resulting_rows": 3, - "cost": 2.005126953, + "resulting_rows": 9, + "cost": 2.015380859, "chosen": true } ], "chosen_access_method": { "type": "scan", - "records": 3, - "cost": 2.005126953, + "records": 9, + "cost": 2.015380859, "uses_join_buffering": true } }, - "rows_for_plan": 2187, - "cost_for_plan": 611.8461426, + "rows_for_plan": 6561, + "cost_for_plan": 1486.656396, "semijoin_strategy_choice": [], "pruned_by_cost": true }, @@ -5951,27 +5947,27 @@ 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_3", - "t_outer_2" + "t_inner_2" ], - "table": "t_inner_2", + "table": "t_inner_4", "best_access_path": { "considered_access_paths": [ { "access_type": "scan", - "resulting_rows": 9, - "cost": 2.015380859, + "resulting_rows": 3, + "cost": 2.005126953, "chosen": true } ], "chosen_access_method": { "type": "scan", - "records": 9, - "cost": 2.015380859, + "records": 3, + "cost": 2.005126953, "uses_join_buffering": true } }, - "rows_for_plan": 6561, - "cost_for_plan": 1486.656396, + "rows_for_plan": 2187, + "cost_for_plan": 611.8461426, "semijoin_strategy_choice": [], "pruned_by_cost": true } @@ -5979,6 +5975,30 @@ 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_3"], + "table": "t_outer_2", + "best_access_path": { + "considered_access_paths": [ + { + "access_type": "scan", + "resulting_rows": 9, + "cost": 2.015380859, + "chosen": true + } + ], + "chosen_access_method": { + "type": "scan", + "records": 9, + "cost": 2.015380859, + "uses_join_buffering": true + } + }, + "rows_for_plan": 729, + "cost_for_plan": 172.4410156, + "semijoin_strategy_choice": [], + "pruned_by_heuristic": true + }, + { + "plan_prefix": ["t_outer_1", "t_inner_1", "t_inner_3"], "table": "t_inner_4", "best_access_path": { "considered_access_paths": [ @@ -6007,7 +6027,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4) { "t_inner_3", "t_inner_4" ], - "table": "t_outer_2", + "table": "t_inner_2", "best_access_path": { "considered_access_paths": [ { @@ -6036,7 +6056,7 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4) { "t_inner_3", "t_inner_4" ], - "table": "t_inner_2", + "table": "t_outer_2", "best_access_path": { "considered_access_paths": [ { @@ -6059,30 +6079,6 @@ t_outer_2.a in (select t_inner_3.a from t2 t_inner_3, t1 t_inner_4) { "pruned_by_cost": true } ] - }, - { - "plan_prefix": ["t_outer_1", "t_inner_1", "t_inner_3"], - "table": "t_inner_2", - "best_access_path": { - "considered_access_paths": [ - { - "access_type": "scan", - "resulting_rows": 9, - "cost": 2.015380859, - "chosen": true - } - ], - "chosen_access_method": { - "type": "scan", - "records": 9, - "cost": 2.015380859, - "uses_join_buffering": true - } - }, - "rows_for_plan": 729, - "cost_for_plan": 172.4410156, - "semijoin_strategy_choice": [], - "pruned_by_heuristic": true } ] } diff --git a/mysql-test/main/selectivity.result b/mysql-test/main/selectivity.result index 40ab309fffd..2cd3cbdd8eb 100644 --- a/mysql-test/main/selectivity.result +++ b/mysql-test/main/selectivity.result @@ -326,8 +326,8 @@ group by c_name, c_custkey, o_orderkey, o_orderdate, o_totalprice order by o_totalprice desc, o_orderdate; id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY orders ALL PRIMARY,i_o_custkey NULL NULL NULL 1500 100.00 Using where; Using temporary; Using filesort -1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 dbt3_s001.orders.o_orderkey 1 100.00 1 PRIMARY customer eq_ref PRIMARY PRIMARY 4 dbt3_s001.orders.o_custkey 1 100.00 +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 dbt3_s001.orders.o_orderkey 1 100.00 1 PRIMARY lineitem ref PRIMARY,i_l_orderkey,i_l_orderkey_quantity i_l_orderkey_quantity 4 dbt3_s001.orders.o_orderkey 4 100.00 Using index 2 MATERIALIZED lineitem index NULL i_l_orderkey_quantity 13 NULL 6005 100.00 Using index Warnings: @@ -360,8 +360,8 @@ group by c_name, c_custkey, o_orderkey, o_orderdate, o_totalprice order by o_totalprice desc, o_orderdate; id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY orders ALL PRIMARY,i_o_custkey NULL NULL NULL 1500 100.00 Using where; Using temporary; Using filesort -1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 dbt3_s001.orders.o_orderkey 1 100.00 1 PRIMARY customer eq_ref PRIMARY PRIMARY 4 dbt3_s001.orders.o_custkey 1 100.00 +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 dbt3_s001.orders.o_orderkey 1 100.00 1 PRIMARY lineitem ref PRIMARY,i_l_orderkey,i_l_orderkey_quantity i_l_orderkey_quantity 4 dbt3_s001.orders.o_orderkey 4 100.00 Using index 2 MATERIALIZED lineitem index NULL i_l_orderkey_quantity 13 NULL 6005 100.00 Using index Warnings: diff --git a/mysql-test/main/subselect3.result b/mysql-test/main/subselect3.result index b3758a66a60..28187e0ffdd 100644 --- a/mysql-test/main/subselect3.result +++ b/mysql-test/main/subselect3.result @@ -1160,8 +1160,8 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY A ALL NULL NULL NULL NULL 10 1 PRIMARY B ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) 1 PRIMARY E ALL NULL NULL NULL NULL 5 Start temporary; Using join buffer (flat, BNL join) -1 PRIMARY D ALL NULL NULL NULL NULL 10 Using where; Using join buffer (flat, BNL join) -1 PRIMARY C ALL NULL NULL NULL NULL 10 Using where; End temporary; Using join buffer (flat, BNL join) +1 PRIMARY C ALL NULL NULL NULL NULL 10 Using where; Using join buffer (flat, BNL join) +1 PRIMARY D ALL NULL NULL NULL NULL 10 Using where; End temporary; Using join buffer (flat, BNL join) flush status; select count(*) from t0 A, t0 B, t0 C, t0 D where D.a in (select a from t1 E where a+1 < 10000 + A.a + B.a +C.a+D.a); count(*) diff --git a/mysql-test/main/subselect3_jcl6.result b/mysql-test/main/subselect3_jcl6.result index ec799c07003..9df821e07dc 100644 --- a/mysql-test/main/subselect3_jcl6.result +++ b/mysql-test/main/subselect3_jcl6.result @@ -1163,8 +1163,8 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY A ALL NULL NULL NULL NULL 10 1 PRIMARY B ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) 1 PRIMARY E ALL NULL NULL NULL NULL 5 Using where; Start temporary; Using join buffer (incremental, BNL join) -1 PRIMARY D hash_ALL NULL #hash#$hj 5 test.E.a 10 Using where; Using join buffer (incremental, BNLH join) -1 PRIMARY C ALL NULL NULL NULL NULL 10 Using where; End temporary; Using join buffer (incremental, BNL join) +1 PRIMARY C ALL NULL NULL NULL NULL 10 Using where; Using join buffer (incremental, BNL join) +1 PRIMARY D hash_ALL NULL #hash#$hj 5 test.E.a 10 Using where; End temporary; Using join buffer (incremental, BNLH join) flush status; select count(*) from t0 A, t0 B, t0 C, t0 D where D.a in (select a from t1 E where a+1 < 10000 + A.a + B.a +C.a+D.a); count(*) diff --git a/mysql-test/main/subselect_sj.result b/mysql-test/main/subselect_sj.result index e9a484bbcbf..9febf3d4e5f 100644 --- a/mysql-test/main/subselect_sj.result +++ b/mysql-test/main/subselect_sj.result @@ -2500,8 +2500,8 @@ 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 t2 ref a a 5 const 1 Using index -1 PRIMARY t1 ref a a 5 func 1 Using index +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 SELECT * FROM t1, t2 WHERE t1.a = t2.a AND t2.a IN (SELECT b FROM t3 STRAIGHT_JOIN t4); diff --git a/mysql-test/main/subselect_sj2.result b/mysql-test/main/subselect_sj2.result index cdf9707dcbd..db6393b909d 100644 --- a/mysql-test/main/subselect_sj2.result +++ b/mysql-test/main/subselect_sj2.result @@ -1129,8 +1129,8 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY alias3 ALL PRIMARY NULL NULL NULL # Using where 1 PRIMARY alias4 ref PRIMARY,c c 4 test.alias3.d # Using index 1 PRIMARY alias5 eq_ref PRIMARY PRIMARY 4 test.alias4.b # Using where; FirstMatch(alias3) -1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join) 1 PRIMARY alias1 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join) +1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join) SELECT COUNT(*) FROM t1 AS alias1, t1 AS alias2, t2 AS alias3 WHERE alias3.d IN ( SELECT alias4.c FROM t2 AS alias4, t2 AS alias5 @@ -1150,8 +1150,8 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY alias3 ALL PRIMARY NULL NULL NULL # Using where 1 PRIMARY alias4 ref PRIMARY,c c 4 test.alias3.d # Using index 1 PRIMARY alias5 eq_ref PRIMARY PRIMARY 4 test.alias4.b # Using where; FirstMatch(alias3) -1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join) 1 PRIMARY alias1 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join) +1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join) SELECT COUNT(*) FROM t1 AS alias1, t1 AS alias2, t2 AS alias3 WHERE alias3.d IN ( SELECT alias4.c FROM t2 AS alias4, t2 AS alias5 diff --git a/mysql-test/main/subselect_sj2_jcl6.result b/mysql-test/main/subselect_sj2_jcl6.result index 84317467e8a..b2ffb033788 100644 --- a/mysql-test/main/subselect_sj2_jcl6.result +++ b/mysql-test/main/subselect_sj2_jcl6.result @@ -1142,8 +1142,8 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY alias3 ALL PRIMARY NULL NULL NULL # Using where 1 PRIMARY alias4 ref PRIMARY,c c 4 test.alias3.d # Using index 1 PRIMARY alias5 eq_ref PRIMARY PRIMARY 4 test.alias4.b # Using where; FirstMatch(alias3) -1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join) -1 PRIMARY alias1 ALL NULL NULL NULL NULL # Using join buffer (incremental, BNL join) +1 PRIMARY alias1 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join) +1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (incremental, BNL join) SELECT COUNT(*) FROM t1 AS alias1, t1 AS alias2, t2 AS alias3 WHERE alias3.d IN ( SELECT alias4.c FROM t2 AS alias4, t2 AS alias5 @@ -1163,8 +1163,8 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY alias3 ALL PRIMARY NULL NULL NULL # Using where 1 PRIMARY alias4 ref PRIMARY,c c 4 test.alias3.d # Using index 1 PRIMARY alias5 eq_ref PRIMARY PRIMARY 4 test.alias4.b # Using where; FirstMatch(alias3) -1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join) -1 PRIMARY alias1 ALL NULL NULL NULL NULL # Using join buffer (incremental, BNL join) +1 PRIMARY alias1 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join) +1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (incremental, BNL join) SELECT COUNT(*) FROM t1 AS alias1, t1 AS alias2, t2 AS alias3 WHERE alias3.d IN ( SELECT alias4.c FROM t2 AS alias4, t2 AS alias5 diff --git a/mysql-test/main/subselect_sj2_mat.result b/mysql-test/main/subselect_sj2_mat.result index 54286f1fa82..b5eaa258410 100644 --- a/mysql-test/main/subselect_sj2_mat.result +++ b/mysql-test/main/subselect_sj2_mat.result @@ -1131,8 +1131,8 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY alias3 ALL PRIMARY NULL NULL NULL # Using where 1 PRIMARY alias4 ref PRIMARY,c c 4 test.alias3.d # Using index 1 PRIMARY alias5 eq_ref PRIMARY PRIMARY 4 test.alias4.b # Using where; FirstMatch(alias3) -1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join) 1 PRIMARY alias1 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join) +1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join) SELECT COUNT(*) FROM t1 AS alias1, t1 AS alias2, t2 AS alias3 WHERE alias3.d IN ( SELECT alias4.c FROM t2 AS alias4, t2 AS alias5 @@ -1152,8 +1152,8 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY alias3 ALL PRIMARY NULL NULL NULL # Using where 1 PRIMARY alias4 ref PRIMARY,c c 4 test.alias3.d # Using index 1 PRIMARY alias5 eq_ref PRIMARY PRIMARY 4 test.alias4.b # Using where; FirstMatch(alias3) -1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join) 1 PRIMARY alias1 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join) +1 PRIMARY alias2 ALL NULL NULL NULL NULL # Using join buffer (flat, BNL join) SELECT COUNT(*) FROM t1 AS alias1, t1 AS alias2, t2 AS alias3 WHERE alias3.d IN ( SELECT alias4.c FROM t2 AS alias4, t2 AS alias5 @@ -1933,19 +1933,19 @@ AND t3.id_product IN (SELECT id_product FROM t2 t2_4 WHERE t2_4.id_t2 = 34 OR t2 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 <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 t5 ALL NULL NULL NULL NULL 18 Using where; Using join buffer (flat, BNL join) -1 PRIMARY <subquery4> 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 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 <subquery3> 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) +1 PRIMARY <subquery4> 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 +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 3 MATERIALIZED t2_2 ref id_t2,id_product id_t2 5 const 12 4 MATERIALIZED t2_3 range id_t2,id_product id_t2 5 NULL 33 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 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 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 c485b5e5f39..9eac5c65f82 100644 --- a/mysql-test/main/subselect_sj_jcl6.result +++ b/mysql-test/main/subselect_sj_jcl6.result @@ -2511,8 +2511,8 @@ 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 t2 ref a a 5 const 1 Using index -1 PRIMARY t1 ref a a 5 func 1 Using index +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 SELECT * FROM t1, t2 WHERE t1.a = t2.a AND t2.a IN (SELECT b FROM t3 STRAIGHT_JOIN t4); diff --git a/sql/sql_select.cc b/sql/sql_select.cc index a059986d611..32f5e41e50d 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -9176,8 +9176,13 @@ greedy_search(JOIN *join, while (pos && best_table != pos) pos= join->best_ref[++best_idx]; DBUG_ASSERT((pos != NULL)); // should always find 'best_table' - /* move 'best_table' at the first free position in the array of joins */ - swap_variables(JOIN_TAB*, join->best_ref[idx], join->best_ref[best_idx]); + /* + move 'best_table' at the first free position in the array of joins, + keeping the sorted table order intact + */ + memmove(join->best_ref + idx + 1, join->best_ref + idx, + sizeof(JOIN_TAB*) * (best_idx - idx)); + join->best_ref[idx]= best_table; /* compute the cost of the new plan extended with 'best_table' */ record_count= COST_MULT(record_count, join->positions[idx].records_read); @@ -9924,7 +9929,7 @@ best_extension_by_limited_search(JOIN *join, 'join' is a partial plan with lower cost than the best plan so far, so continue expanding it further with the tables in 'remaining_tables'. */ - JOIN_TAB *s; + JOIN_TAB *s, **pos; double best_record_count= DBL_MAX; double best_read_time= DBL_MAX; bool disable_jbuf= join->thd->variables.join_cache_level == 0; @@ -9944,7 +9949,7 @@ best_extension_by_limited_search(JOIN *join, DBUG_EXECUTE("opt", print_plan(join, idx, record_count, read_time, read_time, "part_plan");); - /* + /* If we are searching for the execution plan of a materialized semi-join nest then allowed_tables contains bits only for the tables from this nest. */ @@ -9952,11 +9957,13 @@ best_extension_by_limited_search(JOIN *join, if (join->emb_sjm_nest) allowed_tables= join->emb_sjm_nest->sj_inner_tables & ~join->const_table_map; - for (JOIN_TAB **pos= join->best_ref + idx ; (s= *pos) ; pos++) + for (pos= join->best_ref + idx ; (s= *pos) ; pos++) { table_map real_table_bit= s->table->map; DBUG_ASSERT(remaining_tables & real_table_bit); + swap_variables(JOIN_TAB*, join->best_ref[idx], *pos); + if ((allowed_tables & real_table_bit) && !(remaining_tables & s->dependent) && !check_interleaving_with_nj(s)) @@ -10069,7 +10076,6 @@ best_extension_by_limited_search(JOIN *join, allowed_tables) { /* Recursively expand the current partial plan */ - swap_variables(JOIN_TAB*, join->best_ref[idx], *pos); Json_writer_array trace_rest(thd, "rest_of_plan"); best_res= best_extension_by_limited_search(join, @@ -10082,8 +10088,7 @@ best_extension_by_limited_search(JOIN *join, prune_level, use_cond_selectivity); if ((int) best_res < (int) SEARCH_OK) - DBUG_RETURN(best_res); // Abort - swap_variables(JOIN_TAB*, join->best_ref[idx], *pos); + goto end; // Return best_res if (best_res == SEARCH_FOUND_EDGE && check_if_edge_table(join->positions+ idx, pushdown_cond_selectivity) != @@ -10128,11 +10133,27 @@ best_extension_by_limited_search(JOIN *join, if (best_res == SEARCH_FOUND_EDGE) { trace_one_table.add("pruned_by_hanging_leaf", true); - DBUG_RETURN(best_res); + goto end; } } } - DBUG_RETURN(SEARCH_OK); + best_res= SEARCH_OK; + +end: + /* Restore original table order */ + if (!*pos) + pos--; // Revert last pos++ in for loop + if (pos != join->best_ref + idx) + { + JOIN_TAB *tmp= join->best_ref[idx]; + uint elements= (uint) (pos - (join->best_ref + idx)); + + memmove((void*) (join->best_ref + idx), + (void*) (join->best_ref + idx + 1), + elements * sizeof(JOIN_TAB*)); + *pos= tmp; + } + DBUG_RETURN(best_res); } |