diff options
| author | Sergey Petrunya <psergey@askmonty.org> | 2011-12-05 01:31:42 +0400 |
|---|---|---|
| committer | Sergey Petrunya <psergey@askmonty.org> | 2011-12-05 01:31:42 +0400 |
| commit | 255fd6c9294025ced406382980b0ad51960f0971 (patch) | |
| tree | e7d4f9097843a55ec9272790fa30d8c48cbf6c50 | |
| parent | b5a05df61ea263aa3c3b9df78c56148adf029f04 (diff) | |
| download | mariadb-git-255fd6c9294025ced406382980b0ad51960f0971.tar.gz | |
Make subquery Materialization, as well as semi-join Materialization be shown
in EXPLAIN as select_type==MATERIALIZED.
Before, we had select_type==SUBQUERY and it was difficult to tell materialized
subqueries from uncorrelated scalar-context subqueries.
29 files changed, 447 insertions, 409 deletions
diff --git a/mysql-test/r/func_group.result b/mysql-test/r/func_group.result index 0983d76f449..5b193afafb1 100644 --- a/mysql-test/r/func_group.result +++ b/mysql-test/r/func_group.result @@ -1865,7 +1865,7 @@ SELECT v FROM t2); 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 t2 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Warnings: Warning 1292 Truncated incorrect INTEGER value: 'j' @@ -1891,7 +1891,7 @@ SELECT v FROM t2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No matching min/max row -2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 # # 3) Test that subquery materialization is setup for query with @@ -1915,7 +1915,7 @@ SELECT v FROM t2); 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 t2 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 # # 4) Test that subquery materialization is setup for query with @@ -1940,7 +1940,7 @@ SELECT v FROM t2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> system NULL NULL NULL NULL 0 const row not found -3 SUBQUERY t2 ALL NULL NULL NULL NULL 2 +3 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 2 DERIVED NULL NULL NULL NULL NULL NULL NULL no matching row in const table set optimizer_switch=@tmp_optimizer_switch; @@ -1967,8 +1967,8 @@ SELECT v FROM t2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 index NULL PRIMARY 4 NULL 2 Using where; Using index -3 SUBQUERY t2 ALL NULL NULL NULL NULL 2 -2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables +3 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables set @@optimizer_switch=@save_optimizer_switch; # # Cleanup for BUG#46680 diff --git a/mysql-test/r/group_by.result b/mysql-test/r/group_by.result index 1f93171c09d..5804e8983a3 100644 --- a/mysql-test/r/group_by.result +++ b/mysql-test/r/group_by.result @@ -1544,7 +1544,7 @@ EXPLAIN SELECT 1 FROM t1 WHERE a IN id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 index PRIMARY,i2 PRIMARY 4 NULL 144 Using index 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 144 +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 144 CREATE TABLE t2 (a INT, b INT, KEY(a)); INSERT INTO t2 VALUES (1, 1), (2, 2), (3,3), (4,4); EXPLAIN SELECT a, SUM(b) FROM t2 GROUP BY a LIMIT 2; diff --git a/mysql-test/r/group_min_max.result b/mysql-test/r/group_min_max.result index 56bfcf6c71c..a215063d0aa 100644 --- a/mysql-test/r/group_min_max.result +++ b/mysql-test/r/group_min_max.result @@ -2403,7 +2403,7 @@ 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 8 Using where 1 PRIMARY t1_outer ref a a 5 <subquery2>.max(b) 2 Using index -2 SUBQUERY t1 range NULL a 5 NULL 8 Using index for group-by +2 MATERIALIZED t1 range NULL a 5 NULL 8 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 diff --git a/mysql-test/r/myisam_icp.result b/mysql-test/r/myisam_icp.result index f357247d384..6d8b28ae23d 100644 --- a/mysql-test/r/myisam_icp.result +++ b/mysql-test/r/myisam_icp.result @@ -763,8 +763,8 @@ t2.b NOT IN (SELECT t4.b FROM t3 STRAIGHT_JOIN t4 WHERE t4.b <= 2 AND t4.c = 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 t2 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 2 -2 SUBQUERY t4 range b b 5 NULL 1 Using index condition; Using where; Rowid-ordered scan; Using join buffer (flat, BNL join) +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t4 range b b 5 NULL 1 Using index condition; Using where; Rowid-ordered scan; Using join buffer (flat, BNL join) SELECT * FROM t1 LEFT JOIN t2 ON t1.c=t2.b WHERE t2.b NOT IN (SELECT t4.b FROM t3 STRAIGHT_JOIN t4 WHERE t4.b <= 2 AND t4.c = t3.c); diff --git a/mysql-test/r/subselect.result b/mysql-test/r/subselect.result index 221a313968a..0a4a16962ff 100644 --- a/mysql-test/r/subselect.result +++ b/mysql-test/r/subselect.result @@ -2973,7 +2973,7 @@ explain extended SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FR id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 10 func,func 1 100.00 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 9 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`flag` = 'N')) explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1; @@ -3563,7 +3563,7 @@ SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 9 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 23 test.t1.a,test.t1.b 1 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 9 Using temporary +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 9 Using temporary ALTER TABLE t1 ADD INDEX(a); SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); a b @@ -3575,7 +3575,7 @@ SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL a NULL NULL NULL 9 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 23 test.t1.a,test.t1.b 1 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 9 Using temporary +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 9 Using temporary DROP TABLE t1; create table t1( f1 int,f2 int); insert into t1 values (1,1),(2,2); @@ -4466,14 +4466,14 @@ EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 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 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary Warnings: Note 1003 select 1 AS `1` from <materialize> (select 1 from `test`.`t1` group by `test`.`t1`.`a`) join `test`.`t1` where (`<subquery2>`.`1` = 1) EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 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 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary Warnings: Note 1003 select 1 AS `1` from <materialize> (select 1 from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a`) join `test`.`t1` where (`<subquery2>`.`1` = 1) DROP TABLE t1; @@ -5160,8 +5160,8 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY ot1 ALL NULL NULL NULL NULL 2 1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 24 Using where 1 PRIMARY ot4 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY it2 ALL NULL NULL NULL NULL 4 -2 SUBQUERY it3 ALL NULL NULL NULL NULL 6 Using join buffer (flat, BNL join) +2 MATERIALIZED it2 ALL NULL NULL NULL NULL 4 +2 MATERIALIZED it3 ALL NULL NULL NULL NULL 6 Using join buffer (flat, BNL join) DROP TABLE IF EXISTS ot1, ot4, it2, it3; # # Bug#729039: NULL keys used to evaluate subquery @@ -5861,7 +5861,7 @@ SET @@optimizer_switch='semijoin=off,materialization=on,in_to_exists=off,subquer EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 index NULL a 4 NULL 2 Using where; Using index -2 SUBQUERY t1 index NULL a 4 NULL 2 Using index +2 MATERIALIZED t1 index NULL a 4 NULL 2 Using index SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1); a 2009-01-01 diff --git a/mysql-test/r/subselect3.result b/mysql-test/r/subselect3.result index 28436a7cc23..898eed164b7 100644 --- a/mysql-test/r/subselect3.result +++ b/mysql-test/r/subselect3.result @@ -1180,7 +1180,7 @@ explain select * from t3 where a in (select a from t2) and (a > 5 or a < 10); 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 t3 ref a a 5 test.t2.a 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using where select * from t3 where a in (select a from t2); a filler 1 filler @@ -1474,7 +1474,7 @@ 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 -3 SUBQUERY t3 ALL NULL NULL NULL NULL 2 100.00 +3 MATERIALIZED t3 ALL NULL NULL NULL NULL 2 100.00 2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where (not(<expr_cache><(select `test`.`t2`.`a` from `test`.`t2` where (`test`.`t2`.`a` = 9))>(<in_optimizer>((select `test`.`t2`.`a` from `test`.`t2` where (`test`.`t2`.`a` = 9)),(select `test`.`t2`.`a` from `test`.`t2` where (`test`.`t2`.`a` = 9)) in ( <materialize> (select `test`.`t3`.`b` from `test`.`t3` ), <primary_index_lookup>(9 in <temporary table> on distinct_key where ((9 = `<subquery3>`.`b`)))))))) diff --git a/mysql-test/r/subselect3_jcl6.result b/mysql-test/r/subselect3_jcl6.result index 59848c565d5..59750f2cfa0 100644 --- a/mysql-test/r/subselect3_jcl6.result +++ b/mysql-test/r/subselect3_jcl6.result @@ -1189,7 +1189,7 @@ explain select * from t3 where a in (select a from t2) and (a > 5 or a < 10); 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 t3 ref a a 5 test.t2.a 1 Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan -2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using where select * from t3 where a in (select a from t2); a filler 1 filler @@ -1483,7 +1483,7 @@ 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 -3 SUBQUERY t3 ALL NULL NULL NULL NULL 2 100.00 +3 MATERIALIZED t3 ALL NULL NULL NULL NULL 2 100.00 2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where (not(<expr_cache><(select `test`.`t2`.`a` from `test`.`t2` where (`test`.`t2`.`a` = 9))>(<in_optimizer>((select `test`.`t2`.`a` from `test`.`t2` where (`test`.`t2`.`a` = 9)),(select `test`.`t2`.`a` from `test`.`t2` where (`test`.`t2`.`a` = 9)) in ( <materialize> (select `test`.`t3`.`b` from `test`.`t3` ), <primary_index_lookup>(9 in <temporary table> on distinct_key where ((9 = `<subquery3>`.`b`)))))))) diff --git a/mysql-test/r/subselect4.result b/mysql-test/r/subselect4.result index e9e2924884a..76496d73ef9 100644 --- a/mysql-test/r/subselect4.result +++ b/mysql-test/r/subselect4.result @@ -337,8 +337,8 @@ WHERE PTYPE = 'Design')); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) PREPARE stmt FROM "EXPLAIN SELECT EMPNAME FROM t1 WHERE EMPNUM IN @@ -352,14 +352,14 @@ EXECUTE stmt; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) EXECUTE stmt; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL t1_IDX NULL NULL NULL 5 1 SIMPLE <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) DEALLOCATE PREPARE stmt; DROP INDEX t1_IDX ON t1; CREATE INDEX t1_IDX ON t1(EMPNUM); @@ -375,8 +375,8 @@ WHERE PTYPE = 'Design')); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) PREPARE stmt FROM "EXPLAIN SELECT EMPNAME FROM t1 WHERE EMPNUM IN @@ -390,14 +390,14 @@ EXECUTE stmt; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) EXECUTE stmt; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL t1_IDX NULL NULL NULL 5 1 SIMPLE <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) DEALLOCATE PREPARE stmt; DROP INDEX t1_IDX ON t1; EXPLAIN SELECT EMPNAME @@ -412,8 +412,8 @@ WHERE PTYPE = 'Design')); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 5 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) PREPARE stmt FROM "EXPLAIN SELECT EMPNAME FROM t1 WHERE EMPNUM IN @@ -427,14 +427,14 @@ EXECUTE stmt; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 5 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) EXECUTE stmt; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 5 1 SIMPLE <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) DEALLOCATE PREPARE stmt; SET SESSION optimizer_switch = @old_optimizer_switch; SET SESSION join_cache_level = @old_join_cache_level; @@ -560,8 +560,8 @@ WHERE PTYPE = 'Design')); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) PREPARE stmt FROM "EXPLAIN SELECT EMPNAME FROM t1 WHERE EMPNUM IN @@ -575,14 +575,14 @@ EXECUTE stmt; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) EXECUTE stmt; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL t1_IDX NULL NULL NULL 5 1 SIMPLE <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) DEALLOCATE PREPARE stmt; DROP INDEX t1_IDX ON t1; CREATE INDEX t1_IDX ON t1(EMPNUM); @@ -598,8 +598,8 @@ WHERE PTYPE = 'Design')); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) PREPARE stmt FROM "EXPLAIN SELECT EMPNAME FROM t1 WHERE EMPNUM IN @@ -613,14 +613,14 @@ EXECUTE stmt; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL t1_IDX NULL NULL NULL 5 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) EXECUTE stmt; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL t1_IDX NULL NULL NULL 5 1 SIMPLE <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) DEALLOCATE PREPARE stmt; DROP INDEX t1_IDX ON t1; EXPLAIN SELECT EMPNAME @@ -635,8 +635,8 @@ WHERE PTYPE = 'Design')); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 5 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) PREPARE stmt FROM "EXPLAIN SELECT EMPNAME FROM t1 WHERE EMPNUM IN @@ -650,14 +650,14 @@ EXECUTE stmt; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 5 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) EXECUTE stmt; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE t1 ALL NULL NULL NULL NULL 5 1 SIMPLE <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 12 Using where; Using join buffer (flat, BNL join) DEALLOCATE PREPARE stmt; SET SESSION optimizer_switch = @old_optimizer_switch; SET SESSION join_cache_level = @old_join_cache_level; @@ -716,7 +716,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ref f3 f3 5 const 0 Using index condition 2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where 2 SUBQUERY <subquery3> eq_ref distinct_key distinct_key 5 test.t1.f10 1 -3 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using temporary +3 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using temporary SELECT * FROM t1 WHERE f3 = ( SELECT t1.f3 FROM t1 @@ -731,7 +731,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ref f3 f3 5 const 0 Using index condition 2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where 2 SUBQUERY <subquery3> eq_ref distinct_key distinct_key 10 test.t1.f10,test.t1.f10 1 -3 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using temporary +3 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using temporary SELECT * FROM t1 WHERE f3 = ( SELECT f3 FROM t1 @@ -750,21 +750,21 @@ EXPLAIN SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4) FROM t2); 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 t2 system NULL NULL NULL NULL 0 const row not found +2 MATERIALIZED t2 system NULL NULL NULL NULL 0 const row not found SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4) FROM t2); f1 f2 EXPLAIN SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3+f4, min(f4) FROM t2); 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 t2 system NULL NULL NULL NULL 0 const row not found +2 MATERIALIZED t2 system NULL NULL NULL NULL 0 const row not found SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3+f4, min(f4) FROM t2); f1 f2 EXPLAIN SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4)+max(f4) FROM t2); 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 t2 system NULL NULL NULL NULL 0 const row not found +2 MATERIALIZED t2 system NULL NULL NULL NULL 0 const row not found SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4)+max(f4) FROM t2); f1 f2 EXPLAIN @@ -779,14 +779,14 @@ EXPLAIN SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, count(f4) FROM t2); 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 t2 system NULL NULL NULL NULL 0 const row not found +2 MATERIALIZED t2 system NULL NULL NULL NULL 0 const row not found SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, count(f4) FROM t2); f1 f2 EXPLAIN SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, f3 + count(f4) FROM t2); 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 t2 system NULL NULL NULL NULL 0 const row not found +2 MATERIALIZED t2 system NULL NULL NULL NULL 0 const row not found SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, f3 + count(f4) FROM t2); f1 f2 EXPLAIN @@ -936,21 +936,21 @@ EXPLAIN SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4) FROM t2 WHERE f3 > 10); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 -2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan +2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4) FROM t2 WHERE f3 > 10); f1 f2 EXPLAIN SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3+f4, min(f4) FROM t2 WHERE f3 > 10); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 -2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan +2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3+f4, min(f4) FROM t2 WHERE f3 > 10); f1 f2 EXPLAIN SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4)+max(f4) FROM t2 WHERE f3 > 10); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 -2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan +2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, min(f4)+max(f4) FROM t2 WHERE f3 > 10); f1 f2 EXPLAIN @@ -965,14 +965,14 @@ EXPLAIN SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 -2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan +2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, count(f4) FROM t2 WHERE f3 > 10); f1 f2 EXPLAIN SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, f3 + count(f4) FROM t2 WHERE f3 > 10); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 -2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan +2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 1 Using index condition; Rowid-ordered scan SELECT * FROM t1 WHERE (2, 0) NOT IN (SELECT f3, f3 + count(f4) FROM t2 WHERE f3 > 10); f1 f2 EXPLAIN @@ -1158,7 +1158,7 @@ WHERE (t2.pk = t1.pk) AND t2.pk IN (SELECT f2 FROM t1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 system PRIMARY NULL NULL NULL 1 1 PRIMARY t1 const PRIMARY PRIMARY 4 const 1 -2 SUBQUERY t1 index NULL f2 4 NULL 2 Using index +2 MATERIALIZED t1 index NULL f2 4 NULL 2 Using index SELECT t1.f3, MAX(t1.f2) FROM t1, t2 WHERE (t2.pk = t1.pk) AND t2.pk IN (SELECT f2 FROM t1); @@ -1249,7 +1249,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using join buffer (flat, BNL join) 1 PRIMARY t3 ALL NULL NULL NULL NULL 3 Using where -2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using where SELECT * FROM (t2 LEFT JOIN t1 ON t1.c1) LEFT JOIN t3 on t3.c1 WHERE 's' IN (SELECT c1 FROM t2); c1 c1 c1 EXPLAIN @@ -1258,7 +1258,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1 1 PRIMARY t4 index NULL PRIMARY 3 NULL 2 Using index; Using join buffer (flat, BNL join) 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using where SELECT * FROM t4 LEFT JOIN t2 ON t4.c1 WHERE 's' IN (SELECT c1 FROM t2); c1 c1 drop table t1, t2, t3, t4; @@ -1534,7 +1534,7 @@ EXPLAIN SELECT 'bug' FROM t3 WHERE ( 5 ) IN (SELECT * FROM v2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t3 system NULL NULL NULL NULL 1 -2 SUBQUERY <derived3> ALL NULL NULL NULL NULL 2 +2 MATERIALIZED <derived3> ALL NULL NULL NULL NULL 2 3 DERIVED t1 system NULL NULL NULL NULL 1 4 UNION t2 system NULL NULL NULL NULL 1 NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL @@ -1661,7 +1661,7 @@ WHERE ( alias2.f1 , alias2.f2 ) IN ( SELECT f2 , f1 FROM t0 GROUP BY f2 , f1 ); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY alias2 ALL NULL NULL NULL NULL 2 Using where 1 PRIMARY alias1 index NULL PRIMARY 4 NULL 2 Using where; Using index -2 SUBQUERY t0 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t0 ALL NULL NULL NULL NULL 2 SELECT alias2.f1 , alias2.f2 FROM t0 AS alias1 RIGHT JOIN t0 AS alias2 ON alias2.f10 @@ -1880,7 +1880,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 index NULL col_int_key 5 NULL 2 Using index 2 SUBQUERY SUBQUERY2_t1 index NULL col_int_key 5 NULL 2 Using index 2 SUBQUERY SUBQUERY2_t2 ALL col_varchar_key NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join) -3 SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary +3 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 Using temporary SELECT col_int_key FROM t2 WHERE (SELECT SUBQUERY2_t1.col_int_key @@ -1927,7 +1927,7 @@ EXPLAIN SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 PREPARE st1 FROM "SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 )"; EXECUTE st1; f1 f2 f3 @@ -1957,7 +1957,7 @@ EXPLAIN SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 PREPARE st3 FROM "SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 )"; EXECUTE st3; f1 f2 f3 @@ -1989,7 +1989,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t3 system NULL NULL NULL NULL 1 Using temporary; Using filesort 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where 2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables -3 SUBQUERY t1 system NULL NULL NULL NULL 0 const row not found +3 MATERIALIZED t1 system NULL NULL NULL NULL 0 const row not found PREPARE st1 FROM " SELECT t2.f1, (SELECT f2 FROM t1 WHERE (7) IN (SELECT f1 FROM t1)) FROM t2 JOIN t3 ON t3.f4 = t2.f4 @@ -2021,7 +2021,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 system NULL NULL NULL NULL 1 1 PRIMARY t3 system NULL NULL NULL NULL 1 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 SELECT t1.f4 FROM t1 JOIN ( t2 JOIN t3 ON t3.f3 = t2.f4 ) ON t3.f3 = t2.f3 WHERE t1.f4 IN ( SELECT f4 FROM t2 ) ; diff --git a/mysql-test/r/subselect_cache.result b/mysql-test/r/subselect_cache.result index 8b04cc0c202..9bedf154cfd 100644 --- a/mysql-test/r/subselect_cache.result +++ b/mysql-test/r/subselect_cache.result @@ -1807,7 +1807,7 @@ set optimizer_switch='default,semijoin=off,materialization=on,subquery_cache=on' explain select * from t1 where a in (select pk from t2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 15 Using where -2 SUBQUERY t2 ALL NULL NULL NULL NULL 10 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 10 flush status; select * from t1 where a in (select pk from t2); a b diff --git a/mysql-test/r/subselect_extra.result b/mysql-test/r/subselect_extra.result index 308e6715fe6..c9f69c9e3c1 100644 --- a/mysql-test/r/subselect_extra.result +++ b/mysql-test/r/subselect_extra.result @@ -308,7 +308,7 @@ EXPLAIN SELECT 1 FROM t1 WHERE a IN id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 index PRIMARY,i2 PRIMARY 4 NULL 144 Using index 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 144 +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 144 CREATE TABLE t2 (a INT, b INT, KEY(a)); INSERT INTO t2 VALUES (1, 1), (2, 2), (3,3), (4,4); EXPLAIN SELECT a, SUM(b) FROM t2 GROUP BY a LIMIT 2; diff --git a/mysql-test/r/subselect_extra_no_semijoin.result b/mysql-test/r/subselect_extra_no_semijoin.result index ebe99550e46..cf789d5909c 100644 --- a/mysql-test/r/subselect_extra_no_semijoin.result +++ b/mysql-test/r/subselect_extra_no_semijoin.result @@ -311,7 +311,7 @@ EXPLAIN SELECT 1 FROM t1 WHERE a IN (SELECT a FROM t1 USE INDEX (i2) IGNORE INDEX (i2)); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 index NULL PRIMARY 4 NULL 144 Using where; Using index -2 SUBQUERY t1 ALL NULL NULL NULL NULL 144 +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 144 CREATE TABLE t2 (a INT, b INT, KEY(a)); INSERT INTO t2 VALUES (1, 1), (2, 2), (3,3), (4,4); EXPLAIN SELECT a, SUM(b) FROM t2 GROUP BY a LIMIT 2; @@ -324,7 +324,7 @@ EXPLAIN SELECT 1 FROM t2 WHERE a IN (SELECT a FROM t1 USE INDEX (i2) IGNORE INDEX (i2)); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 index NULL a 5 NULL 4 Using where; Using index -2 SUBQUERY t1 ALL NULL NULL NULL NULL 144 +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 144 DROP TABLE t1, t2; # # From derived_view.test @@ -349,7 +349,7 @@ WHERE t.a IN (SELECT b FROM t1); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 system NULL NULL NULL NULL 1 100.00 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where -3 SUBQUERY t1 system NULL NULL NULL NULL 1 100.00 +3 MATERIALIZED t1 system NULL NULL NULL NULL 1 100.00 Warnings: Note 1003 select `test`.`t2`.`a` AS `a`,0 AS `a`,0 AS `b` from `test`.`t1` left join `test`.`t2` on((0 <> 0)) where <expr_cache><0>(<in_optimizer>(0,0 in ( <materialize> (select 0 from `test`.`t1` ), <primary_index_lookup>(0 in <temporary table> on distinct_key where ((0 = `<subquery3>`.`b`)))))) SELECT * FROM t2 RIGHT JOIN v1 AS t ON t.a != 0 @@ -362,7 +362,7 @@ WHERE t.a IN (SELECT b FROM t1); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 system NULL NULL NULL NULL 1 100.00 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00 Using where -2 SUBQUERY t1 system NULL NULL NULL NULL 1 100.00 +2 MATERIALIZED t1 system NULL NULL NULL NULL 1 100.00 Warnings: Note 1003 select `test`.`t2`.`a` AS `a`,0 AS `a`,0 AS `b` from `test`.`t1` left join `test`.`t2` on((0 <> 0)) where <expr_cache><0>(<in_optimizer>(0,0 in ( <materialize> (select 0 from `test`.`t1` ), <primary_index_lookup>(0 in <temporary table> on distinct_key where ((0 = `<subquery2>`.`b`)))))) DROP VIEW v1; diff --git a/mysql-test/r/subselect_mat.result b/mysql-test/r/subselect_mat.result index 8eaad6d8034..31a9227ab0f 100644 --- a/mysql-test/r/subselect_mat.result +++ b/mysql-test/r/subselect_mat.result @@ -46,7 +46,7 @@ explain extended select * from t1 where a1 in (select b1 from t2 where b1 > '0'); 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 Using where -2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t1`.`a1`,`test`.`t1`.`a1` in ( <materialize> (select `test`.`t2`.`b1` from `test`.`t2` where (`test`.`t2`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`)))))) select * from t1 where a1 in (select b1 from t2 where b1 > '0'); @@ -57,7 +57,7 @@ explain extended select * from t1 where a1 in (select b1 from t2 where b1 > '0' group by b1); 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 Using where -2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary Warnings: Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a1`>(<in_optimizer>(`test`.`t1`.`a1`,`test`.`t1`.`a1` in ( <materialize> (select `test`.`t2`.`b1` from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`)))))) select * from t1 where a1 in (select b1 from t2 where b1 > '0' group by b1); @@ -68,7 +68,7 @@ explain extended select * from t1 where (a1, a2) in (select b1, b2 from t2 where b1 > '0' group by b1, b2); 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 Using where -2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary Warnings: Note 1003 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 `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1`,`test`.`t2`.`b2` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`)))))) select * from t1 where (a1, a2) in (select b1, b2 from t2 where b1 > '0' group by b1, b2); @@ -79,7 +79,7 @@ explain extended select * from t1 where (a1, a2) in (select b1, min(b2) from t2 where b1 > '0' group by b1); 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 Using where -2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary Warnings: Note 1003 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 `test`.`t2`.`b1`,min(`test`.`t2`.`b2`) from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`min(b2)`)))))) select * from t1 where (a1, a2) in (select b1, min(b2) from t2 where b1 > '0' group by b1); @@ -90,7 +90,7 @@ 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 SUBQUERY t2i index 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` where <expr_cache><`test`.`t1i`.`a1`>(<in_optimizer>(`test`.`t1i`.`a1`,`test`.`t1i`.`a1` in ( <materialize> (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'); @@ -101,7 +101,7 @@ explain extended select * from t1i where a1 in (select b1 from t2i where b1 > '0' group by b1); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1i index NULL # 18 # 3 100.00 # -2 SUBQUERY t2i range it2i1,it2i3 # 9 # 3 100.00 # +2 MATERIALIZED t2i range it2i1,it2i3 # 9 # 3 100.00 # Warnings: Note 1003 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 `test`.`t2i`.`b1` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1` ), <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' group by b1); @@ -112,7 +112,7 @@ 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 SUBQUERY t2i index 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 `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 `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'); @@ -123,7 +123,7 @@ explain extended select * from t1i where (a1, a2) in (select b1, b2 from t2i where b1 > '0' group by b1, b2); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1i index NULL # # # 3 100.00 # -2 SUBQUERY t2i range it2i1,it2i3 # # # 3 100.00 # +2 MATERIALIZED t2i range it2i1,it2i3 # # # 3 100.00 # Warnings: Note 1003 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 `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`,`test`.`t2i`.`b2` ), <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' group by b1, b2); @@ -134,7 +134,7 @@ explain extended select * from t1i where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1i index NULL # # # 3 100.00 # -2 SUBQUERY t2i range it2i1,it2i3 # # # 3 100.00 # +2 MATERIALIZED t2i range it2i1,it2i3 # # # 3 100.00 # Warnings: Note 1003 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 `test`.`t2i`.`b1`,min(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1` ), <primary_index_lookup>(`test`.`t1i`.`a1` in <temporary table> on distinct_key where ((`test`.`t1i`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1i`.`a2` = `<subquery2>`.`min(b2)`)))))) select * from t1i where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1); @@ -145,7 +145,7 @@ explain extended select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1); 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 Using where -2 SUBQUERY t2i range NULL it2i3 9 NULL 3 100.00 Using index for group-by +2 MATERIALIZED t2i range NULL it2i3 9 NULL 3 100.00 Using index for group-by Warnings: Note 1003 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 `test`.`t2i`.`b1`,max(`test`.`t2i`.`b2`) from `test`.`t2i` group by `test`.`t2i`.`b1` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`max(b2)`)))))) select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1); @@ -156,11 +156,11 @@ prepare st1 from "explain select * from t1 where (a1, a2) in (select b1, max(b2) execute st1; 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 SUBQUERY t2i range NULL it2i3 9 NULL 3 Using index for group-by +2 MATERIALIZED t2i range NULL it2i3 9 NULL 3 Using index for group-by execute st1; 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 SUBQUERY t2i range NULL it2i3 9 NULL 3 Using index for group-by +2 MATERIALIZED t2i range NULL it2i3 9 NULL 3 Using index for group-by prepare st2 from "select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1)"; execute st2; a1 a2 @@ -174,7 +174,7 @@ explain extended select * from t1 where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1); 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 Using where -2 SUBQUERY t2i range it2i1,it2i3 it2i3 18 NULL 3 100.00 Using where; Using index for group-by +2 MATERIALIZED t2i range it2i1,it2i3 it2i3 18 NULL 3 100.00 Using where; Using index for group-by Warnings: Note 1003 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 `test`.`t2i`.`b1`,min(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`min(b2)`)))))) select * from t1 where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1); @@ -221,7 +221,7 @@ explain extended select * from t1 where (a1, a2) in (select b1, b2 from t2 order by b1, b2); 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 Using where -2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Warnings: Note 1003 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 `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` order by `test`.`t2`.`b1`,`test`.`t2`.`b2` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1`.`a2` = `<subquery2>`.`b2`)))))) select * from t1 where (a1, a2) in (select b1, b2 from t2 order by b1, b2); @@ -232,7 +232,7 @@ 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 t1i index NULL it1i3 18 NULL 3 100.00 Using where; Using index -2 SUBQUERY t2i index NULL it2i3 18 NULL 5 100.00 Using index +2 MATERIALIZED t2i index NULL 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` 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 `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` order by `test`.`t2i`.`b1`,`test`.`t2i`.`b2` ), <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 order by b1, b2); @@ -285,9 +285,9 @@ where (a1, a2) in (select b1, b2 from t2 where b1 > '0') and 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 t1 ALL NULL NULL NULL NULL 3 100.00 Using where -3 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where -4 SUBQUERY t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index -2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where +3 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where +4 MATERIALIZED t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where Warnings: Note 1003 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 `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (`test`.`t2`.`b1` > '0') ), <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 `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 `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` = `<subquery4>`.`b1`) and (`test`.`t3`.`c2` = `<subquery4>`.`b2`)))))) ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery3>`.`c1`) and (`test`.`t1`.`a2` = `<subquery3>`.`c2`))))))) select * from t1 @@ -304,9 +304,9 @@ where (a1, a2) in (select b1, b2 from t2i where b1 > '0') and 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 index NULL # # # 3 100.00 # -3 SUBQUERY t3i index NULL # # # 4 100.00 # -4 SUBQUERY t2i index it2i2 # # # 5 100.00 # -2 SUBQUERY t2i index it2i1,it2i3 # # # 5 100.00 # +3 MATERIALIZED t3i index NULL # # # 4 100.00 # +4 MATERIALIZED t2i index it2i2 # # # 5 100.00 # +2 MATERIALIZED t2i index it2i1,it2i3 # # # 5 100.00 # Warnings: Note 1003 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 `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 `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 `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 @@ -325,11 +325,11 @@ b2 in (select c2 from t3 where c2 LIKE '%03')) and 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 t1 ALL NULL NULL NULL NULL 3 100.00 Using where -5 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where -6 SUBQUERY t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index -2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where -4 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where -3 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where +5 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where +6 MATERIALIZED t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where +4 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where +3 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where Warnings: Note 1003 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 `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 `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 `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 `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 `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`))))))) select * from t1 @@ -349,10 +349,10 @@ b2 in (select c2 from t3 t3b where c2 LIKE '%03')) and 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 t1 ALL NULL NULL NULL NULL 3 100.00 Using where -5 SUBQUERY t3c ALL NULL NULL NULL NULL 4 100.00 Using where -6 SUBQUERY t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index +5 MATERIALIZED t3c ALL NULL NULL NULL NULL 4 100.00 Using where +6 MATERIALIZED t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where -4 SUBQUERY t3b ALL NULL NULL NULL NULL 4 100.00 Using where +4 MATERIALIZED t3b ALL NULL NULL NULL NULL 4 100.00 Using where 3 DEPENDENT SUBQUERY t3a ALL NULL NULL NULL NULL 4 100.00 Using where Warnings: Note 1276 Field or reference 'test.t1.a1' of SELECT #3 was resolved in SELECT #1 @@ -381,15 +381,15 @@ where (a1, a2) in (select b1, b2 from t2i where b1 > '0') and 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 t1 ALL NULL # # # 3 100.00 # -5 SUBQUERY t3 ALL NULL # # # 4 100.00 # -6 SUBQUERY t2i index it2i2 # # # 5 100.00 # -2 SUBQUERY t2 ALL NULL # # # 5 100.00 # -4 SUBQUERY t3 ALL NULL # # # 4 100.00 # -3 SUBQUERY t3 ALL NULL # # # 4 100.00 # +5 MATERIALIZED t3 ALL NULL # # # 4 100.00 # +6 MATERIALIZED t2i index it2i2 # # # 5 100.00 # +2 MATERIALIZED t2 ALL NULL # # # 5 100.00 # +4 MATERIALIZED t3 ALL NULL # # # 4 100.00 # +3 MATERIALIZED t3 ALL NULL # # # 4 100.00 # 7 UNION t1i index NULL # # # 3 100.00 # -9 SUBQUERY t3i index NULL # # # 4 100.00 # -10 SUBQUERY t2i index it2i2 # # # 5 100.00 # -8 SUBQUERY t2i index it2i1,it2i3 # # # 5 100.00 # +9 MATERIALIZED t3i index NULL # # # 4 100.00 # +10 MATERIALIZED t2i index it2i2 # # # 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 `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 `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 `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 `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`))))))) group by `test`.`t2`.`b1`,`test`.`t2`.`b2` ), <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 `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 `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 `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 `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 `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 `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`)))))))) @@ -415,8 +415,8 @@ where (a1, a2) in (select * from t1 where a1 > '0' UNION select * from t2 where 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 t1 ALL NULL NULL NULL NULL 3 100.00 Using where -4 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where -5 SUBQUERY t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index +4 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where +5 MATERIALIZED t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00 Using where 3 DEPENDENT UNION t2 ALL NULL NULL NULL NULL 5 100.00 Using where NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL @@ -438,8 +438,8 @@ a1 = c1; 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 Using where 1 PRIMARY t3 ALL NULL NULL NULL NULL 4 100.00 Using where; Using join buffer (flat, BNL join) -4 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where -5 SUBQUERY t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index +4 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where +5 MATERIALIZED t2i index it2i2 it2i3 18 NULL 5 100.00 Using where; Using index 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00 Using where 3 DEPENDENT UNION t2 ALL NULL NULL NULL NULL 5 100.00 Using where NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL @@ -485,7 +485,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 5 DEPENDENT SUBQUERY t3c ALL NULL NULL NULL NULL 4 100.00 Using where 6 DEPENDENT SUBQUERY t2i index_subquery it2i1,it2i2,it2i3 it2i3 18 func,func 2 100.00 Using index; Using where 2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where -4 SUBQUERY t3b ALL NULL NULL NULL NULL 4 100.00 Using where +4 MATERIALIZED t3b ALL NULL NULL NULL NULL 4 100.00 Using where 3 DEPENDENT SUBQUERY t3a ALL NULL NULL NULL NULL 4 100.00 Using where Warnings: Note 1276 Field or reference 'test.t1.a1' of SELECT #3 was resolved in SELECT #1 @@ -622,7 +622,7 @@ from t1_16 where a1 in (select substring(b1,1,16) from t2_16 where b1 > '0'); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where -2 SUBQUERY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where +2 MATERIALIZED t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where Warnings: Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` where <expr_cache><`test`.`t1_16`.`a1`>(<in_optimizer>(`test`.`t1_16`.`a1`,`test`.`t1_16`.`a1` in ( <materialize> (select substr(`test`.`t2_16`.`b1`,1,16) from `test`.`t2_16` where (`test`.`t2_16`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1_16`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_16`.`a1` = `<subquery2>`.`substring(b1,1,16)`)))))) select left(a1,7), left(a2,7) @@ -651,7 +651,7 @@ from t1_16 where a1 in (select group_concat(b1) from t2_16 group by b2); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where -2 SUBQUERY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using filesort +2 MATERIALIZED t2_16 ALL NULL NULL NULL NULL 3 100.00 Using filesort Warnings: Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` where <expr_cache><`test`.`t1_16`.`a1`>(<in_optimizer>(`test`.`t1_16`.`a1`,`test`.`t1_16`.`a1` in ( <materialize> (select group_concat(`test`.`t2_16`.`b1` separator ',') from `test`.`t2_16` group by `test`.`t2_16`.`b2` ), <primary_index_lookup>(`test`.`t1_16`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_16`.`a1` = `<subquery2>`.`group_concat(b1)`)))))) select left(a1,7), left(a2,7) @@ -673,7 +673,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 2 DEPENDENT SUBQUERY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where 3 DEPENDENT SUBQUERY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where 3 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using join buffer (flat, BNL join) -4 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where +4 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where <expr_cache><concat(`test`.`t1`.`a1`,'x')>(<in_optimizer>(concat(`test`.`t1`.`a1`,'x'),<exists>(select left(`test`.`t1_16`.`a1`,8) from `test`.`t1_16` where (<expr_cache><`test`.`t1_16`.`a1`,`test`.`t1_16`.`a2`>(<in_optimizer>((`test`.`t1_16`.`a1`,`test`.`t1_16`.`a2`),<exists>(select `test`.`t2_16`.`b1`,`test`.`t2_16`.`b2` from `test`.`t2_16` join `test`.`t2` where ((`test`.`t2`.`b2` = substr(`test`.`t2_16`.`b2`,1,6)) and <expr_cache><`test`.`t2`.`b1`>(<in_optimizer>(`test`.`t2`.`b1`,`test`.`t2`.`b1` in ( <materialize> (select `test`.`t3`.`c1` from `test`.`t3` where (`test`.`t3`.`c2` > '0') ), <primary_index_lookup>(`test`.`t2`.`b1` in <temporary table> on distinct_key where ((`test`.`t2`.`b1` = `<subquery4>`.`c1`)))))) and (<cache>(`test`.`t1_16`.`a1`) = `test`.`t2_16`.`b1`) and (<cache>(`test`.`t1_16`.`a2`) = `test`.`t2_16`.`b2`))))) and (<cache>(concat(`test`.`t1`.`a1`,'x')) = left(`test`.`t1_16`.`a1`,8)))))) drop table t1_16, t2_16, t3_16; @@ -735,7 +735,7 @@ from t1_512 where a1 in (select substring(b1,1,512) from t2_512 where b1 > '0'); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where -2 SUBQUERY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using where +2 MATERIALIZED t2_512 ALL NULL NULL NULL NULL 3 100.00 Using where Warnings: Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` where <expr_cache><`test`.`t1_512`.`a1`>(<in_optimizer>(`test`.`t1_512`.`a1`,`test`.`t1_512`.`a1` in ( <materialize> (select substr(`test`.`t2_512`.`b1`,1,512) from `test`.`t2_512` where (`test`.`t2_512`.`b1` > '0') ), <primary_index_lookup>(`test`.`t1_512`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_512`.`a1` = `<subquery2>`.`substring(b1,1,512)`)))))) select left(a1,7), left(a2,7) @@ -749,7 +749,7 @@ from t1_512 where a1 in (select group_concat(b1) from t2_512 group by b2); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where -2 SUBQUERY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort +2 MATERIALIZED t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort Warnings: Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` where <expr_cache><`test`.`t1_512`.`a1`>(<in_optimizer>(`test`.`t1_512`.`a1`,`test`.`t1_512`.`a1` in ( <materialize> (select group_concat(`test`.`t2_512`.`b1` separator ',') from `test`.`t2_512` group by `test`.`t2_512`.`b2` ), <primary_index_lookup>(`test`.`t1_512`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_512`.`a1` = `<subquery2>`.`group_concat(b1)`)))))) select left(a1,7), left(a2,7) @@ -762,7 +762,7 @@ from t1_512 where a1 in (select group_concat(b1) from t2_512 group by b2); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where -2 SUBQUERY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort +2 MATERIALIZED t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort Warnings: Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` where <expr_cache><`test`.`t1_512`.`a1`>(<in_optimizer>(`test`.`t1_512`.`a1`,`test`.`t1_512`.`a1` in ( <materialize> (select group_concat(`test`.`t2_512`.`b1` separator ',') from `test`.`t2_512` group by `test`.`t2_512`.`b2` ), <primary_index_lookup>(`test`.`t1_512`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_512`.`a1` = `<subquery2>`.`group_concat(b1)`)))))) select left(a1,7), left(a2,7) @@ -842,7 +842,7 @@ from t1_1024 where a1 in (select group_concat(b1) from t2_1024 group by b2); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Using where -2 SUBQUERY t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort +2 MATERIALIZED t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort Warnings: Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1024` where <expr_cache><`test`.`t1_1024`.`a1`>(<in_optimizer>(`test`.`t1_1024`.`a1`,`test`.`t1_1024`.`a1` in ( <materialize> (select group_concat(`test`.`t2_1024`.`b1` separator ',') from `test`.`t2_1024` group by `test`.`t2_1024`.`b2` ), <primary_index_lookup>(`test`.`t1_1024`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_1024`.`a1` = `<subquery2>`.`group_concat(b1)`)))))) select left(a1,7), left(a2,7) @@ -855,7 +855,7 @@ from t1_1024 where a1 in (select group_concat(b1) from t2_1024 group by b2); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Using where -2 SUBQUERY t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort +2 MATERIALIZED t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort Warnings: Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1024` where <expr_cache><`test`.`t1_1024`.`a1`>(<in_optimizer>(`test`.`t1_1024`.`a1`,`test`.`t1_1024`.`a1` in ( <materialize> (select group_concat(`test`.`t2_1024`.`b1` separator ',') from `test`.`t2_1024` group by `test`.`t2_1024`.`b2` ), <primary_index_lookup>(`test`.`t1_1024`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_1024`.`a1` = `<subquery2>`.`group_concat(b1)`)))))) select left(a1,7), left(a2,7) @@ -935,7 +935,7 @@ from t1_1025 where a1 in (select group_concat(b1) from t2_1025 group by b2); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Using where -2 SUBQUERY t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort +2 MATERIALIZED t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort Warnings: Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1025` where <expr_cache><`test`.`t1_1025`.`a1`>(<in_optimizer>(`test`.`t1_1025`.`a1`,`test`.`t1_1025`.`a1` in ( <materialize> (select group_concat(`test`.`t2_1025`.`b1` separator ',') from `test`.`t2_1025` group by `test`.`t2_1025`.`b2` ), <primary_index_lookup>(`test`.`t1_1025`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_1025`.`a1` = `<subquery2>`.`group_concat(b1)`)))))) select left(a1,7), left(a2,7) @@ -948,7 +948,7 @@ from t1_1025 where a1 in (select group_concat(b1) from t2_1025 group by b2); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Using where -2 SUBQUERY t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort +2 MATERIALIZED t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort Warnings: Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from `test`.`t1_1025` where <expr_cache><`test`.`t1_1025`.`a1`>(<in_optimizer>(`test`.`t1_1025`.`a1`,`test`.`t1_1025`.`a1` in ( <materialize> (select group_concat(`test`.`t2_1025`.`b1` separator ',') from `test`.`t2_1025` group by `test`.`t2_1025`.`b2` ), <primary_index_lookup>(`test`.`t1_1025`.`a1` in <temporary table> on distinct_key where ((`test`.`t1_1025`.`a1` = `<subquery2>`.`group_concat(b1)`)))))) select left(a1,7), left(a2,7) @@ -969,7 +969,7 @@ from t1bit where (a1, a2) in (select b1, b2 from t2bit); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1bit ALL NULL NULL NULL NULL 3 100.00 Using where -2 SUBQUERY t2bit ALL NULL NULL NULL NULL 3 100.00 +2 MATERIALIZED t2bit ALL NULL NULL NULL NULL 3 100.00 Warnings: Note 1003 select conv(`test`.`t1bit`.`a1`,10,2) AS `bin(a1)`,conv(`test`.`t1bit`.`a2`,10,2) AS `bin(a2)` from `test`.`t1bit` where <expr_cache><`test`.`t1bit`.`a1`,`test`.`t1bit`.`a2`>(<in_optimizer>((`test`.`t1bit`.`a1`,`test`.`t1bit`.`a2`),(`test`.`t1bit`.`a1`,`test`.`t1bit`.`a2`) in ( <materialize> (select `test`.`t2bit`.`b1`,`test`.`t2bit`.`b2` from `test`.`t2bit` ), <primary_index_lookup>(`test`.`t1bit`.`a1` in <temporary table> on distinct_key where ((`test`.`t1bit`.`a1` = `<subquery2>`.`b1`) and (`test`.`t1bit`.`a2` = `<subquery2>`.`b2`)))))) select bin(a1), bin(a2) @@ -1040,7 +1040,7 @@ explain extended select a from t1 where a in (select c from t2 where d >= 20); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 7 100.00 Using where -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 100.00 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`)))))) select a from t1 where a in (select c from t2 where d >= 20); @@ -1054,7 +1054,7 @@ explain extended select a from t1 where a in (select c from t2 where d >= 20); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 index NULL it1a 4 NULL 7 100.00 Using where; Using index -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 100.00 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`)))))) select a from t1 where a in (select c from t2 where d >= 20); @@ -1068,7 +1068,7 @@ explain extended select a from t1 where a in (select c from t2 where d >= 20); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 index NULL it1a 4 NULL 7 100.00 Using where; Using index -2 SUBQUERY t2 ALL NULL NULL NULL NULL 7 100.00 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 7 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`)))))) select a from t1 where a in (select c from t2 where d >= 20); @@ -1081,7 +1081,7 @@ explain extended select a from t1 group by a having a in (select c from t2 where d >= 20); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 index NULL it1a 4 NULL 7 100.00 Using index -2 SUBQUERY t2 ALL NULL NULL NULL NULL 7 100.00 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 7 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`)))))) select a from t1 group by a having a in (select c from t2 where d >= 20); @@ -1093,7 +1093,7 @@ explain extended select a from t1 group by a having a in (select c from t2 where d >= 20); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 index NULL it1a 4 NULL 7 100.00 Using index -2 SUBQUERY t2 ALL NULL NULL NULL NULL 7 100.00 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 7 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`)))))) select a from t1 group by a having a in (select c from t2 where d >= 20); @@ -1151,7 +1151,7 @@ insert into t1 values (5); explain select min(a1) from t1 where 7 in (select b1 from t2 group by b1); 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 system NULL NULL NULL NULL 0 const row not found +2 MATERIALIZED t2 system NULL NULL NULL NULL 0 const row not found select min(a1) from t1 where 7 in (select b1 from t2 group by b1); min(a1) NULL @@ -1170,7 +1170,7 @@ set @@optimizer_switch='semijoin=off'; explain select min(a1) from t1 where 7 in (select b1 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 system NULL NULL NULL NULL 0 const row not found +2 MATERIALIZED t2 system NULL NULL NULL NULL 0 const row not found select min(a1) from t1 where 7 in (select b1 from t2); min(a1) NULL @@ -1200,7 +1200,7 @@ insert into t1 values ('aa', 'aaaa'); explain select a,b from t1 where b in (select a from t1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 select a,b from t1 where b in (select a from t1); a b prepare st1 from "select a,b from t1 where b in (select a from t1)"; @@ -1237,8 +1237,8 @@ GROUP BY t3i id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 system NULL NULL NULL NULL 1 1 PRIMARY t4 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where -3 SUBQUERY t3 ALL NULL NULL NULL NULL 2 Using temporary +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using where +3 MATERIALIZED t3 ALL NULL NULL NULL NULL 2 Using temporary DROP TABLE t1,t2,t3,t4; CREATE TABLE t1 ( pk INTEGER AUTO_INCREMENT, @@ -1345,7 +1345,7 @@ SELECT t1.* FROM t1 LEFT JOIN t2 ON t1.a > 3 OR t2.b IN (SELECT a FROM t1) id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 2 DERIVED NULL NULL NULL NULL NULL NULL NULL no matching row in const table -3 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table +3 MATERIALIZED NULL NULL NULL NULL NULL NULL NULL no matching row in const table SELECT a FROM ( SELECT t1.* FROM t1 LEFT JOIN t2 ON t1.a > 3 OR t2.b IN (SELECT a FROM t1) ) table1; @@ -1374,7 +1374,7 @@ WHERE t1.f1 IN (SELECT t1.pk FROM t1 ORDER 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 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY t1 system NULL NULL NULL NULL 1 +2 MATERIALIZED t1 system NULL NULL NULL NULL 1 SELECT * FROM t1 JOIN t2 USING (f1) WHERE t1.f1 IN (SELECT t1.pk FROM t1 ORDER BY t1.f1); f1 pk pk @@ -1448,7 +1448,7 @@ EXPLAIN SELECT COUNT(*) FROM t1 WHERE (f1,f2) IN (SELECT f1,f2 FROM t2); 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 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 SELECT COUNT(*) FROM t1 WHERE (f1,f2) IN (SELECT f1,f2 FROM t2); COUNT(*) 2 @@ -1472,7 +1472,7 @@ 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 5 func 1 -2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 2 Using index condition; Rowid-ordered scan +2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 2 Using index condition; Rowid-ordered scan SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0); pk 2 @@ -1513,7 +1513,7 @@ insert into t1 values (0),(1),(2); explain select a, a in (select a from t1) from t0; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t0 ALL NULL NULL NULL NULL 3 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 3 +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 3 select a, a in (select a from t1) from t0; a a in (select a from t1) 0 1 @@ -1740,7 +1740,7 @@ insert into t1 values (0),(1),(2); explain select a, a in (select a from t1) from t0; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t0 ALL NULL NULL NULL NULL 3 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 3 +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 3 select a, a in (select a from t1) from t0; a a in (select a from t1) 0 1 @@ -1772,7 +1772,7 @@ EXPLAIN SELECT SUM(c1) c1_sum FROM t1 WHERE c1 IN (SELECT c2 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 system NULL NULL NULL NULL 1 +2 MATERIALIZED t2 system NULL NULL NULL NULL 1 SELECT SUM(c1) c1_sum FROM t1 WHERE c1 IN (SELECT c2 FROM t2); c1_sum NULL @@ -1780,7 +1780,7 @@ EXPLAIN SELECT SUM(c1) c1_sum FROM t1 WHERE c1 IN (SELECT c2 FROM t2) HAVING c1_sum; 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 system NULL NULL NULL NULL 1 +2 MATERIALIZED t2 system NULL NULL NULL NULL 1 SELECT SUM(c1) c1_sum FROM t1 WHERE c1 IN (SELECT c2 FROM t2) HAVING c1_sum; c1_sum drop table t1, t2; @@ -1799,7 +1799,7 @@ SELECT i FROM t1 LEFT JOIN t2 ON (j) IN (SELECT k FROM t3); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 system NULL NULL NULL NULL 1 1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where -2 SUBQUERY t3 system NULL NULL NULL NULL 0 const row not found +2 MATERIALIZED t3 system NULL NULL NULL NULL 0 const row not found SELECT i FROM t1 LEFT JOIN t2 ON (j) IN (SELECT k FROM t3); i 10 @@ -1808,7 +1808,7 @@ SELECT i FROM t1 LEFT JOIN t2 ON (j) IN (SELECT max(k) FROM t3); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 system NULL NULL NULL NULL 1 1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where -2 SUBQUERY t3 system NULL NULL NULL NULL 0 const row not found +2 MATERIALIZED t3 system NULL NULL NULL NULL 0 const row not found SELECT i FROM t1 LEFT JOIN t2 ON (j) IN (SELECT max(k) FROM t3); i 10 @@ -1850,7 +1850,7 @@ 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 5 func 1 -2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 2 Using index condition +2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 2 Using index condition SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0); pk 2 @@ -1895,7 +1895,7 @@ EXPLAIN SELECT * FROM t2 WHERE (SELECT f3a FROM t3) NOT IN (SELECT f1a FROM t1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 -3 SUBQUERY t1 ALL NULL NULL NULL NULL 2 +3 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table SELECT * FROM t2 WHERE (SELECT f3a FROM t3) NOT IN (SELECT f1a FROM t1); f2 @@ -1912,7 +1912,7 @@ EXPLAIN SELECT * FROM t2 WHERE (SELECT f3a, f3b FROM t3) NOT IN (SELECT f1a, f1b FROM t1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 -3 SUBQUERY t1 ALL NULL NULL NULL NULL 2 +3 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table SELECT * FROM t2 WHERE (SELECT f3a, f3b FROM t3) NOT IN (SELECT f1a, f1b FROM t1); f2 @@ -1941,7 +1941,7 @@ SELECT (f1, f2, f3) NOT IN FROM t2; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 system NULL NULL NULL NULL 1 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using filesort +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 Using filesort SELECT (f1, f2, f3) NOT IN (SELECT COUNT(DISTINCT f2), f1, f3 FROM t1 GROUP BY f1, f3) FROM t2; @@ -1964,7 +1964,7 @@ EXPLAIN EXTENDED SELECT MAX(t1.b) AS max_res FROM t1 WHERE (9) IN (SELECT a FROM t2); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 index NULL b 5 NULL 2 100.00 Using index -2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 100.00 Warnings: Note 1003 select max(`test`.`t1`.`b`) AS `max_res` from `test`.`t1` where <expr_cache><9>(<in_optimizer>(9,9 in ( <materialize> (select `test`.`t2`.`a` from `test`.`t2` ), <primary_index_lookup>(9 in <temporary table> on distinct_key where ((9 = `<subquery2>`.`a`)))))) set @@optimizer_switch='materialization=off,in_to_exists=on,semijoin=off'; @@ -1992,7 +1992,7 @@ FROM t1 WHERE (a, b) NOT IN (SELECT a, b FROM t2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 SELECT * FROM t1 WHERE (a, b) NOT IN (SELECT a, b FROM t2); @@ -2004,7 +2004,7 @@ SELECT a, b, (a, b) NOT IN (SELECT a, b FROM t2) as sq FROM t1; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 SELECT a, b, (a, b) NOT IN (SELECT a, b FROM t2) as sq FROM t1; a b sq diff --git a/mysql-test/r/subselect_mat_cost.result b/mysql-test/r/subselect_mat_cost.result index 7a28b82455c..003d7b0231b 100644 --- a/mysql-test/r/subselect_mat_cost.result +++ b/mysql-test/r/subselect_mat_cost.result @@ -65,7 +65,7 @@ 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 SUBQUERY City ALL Population,Country NULL NULL NULL 4080 Using where +2 MATERIALIZED City ALL Population,Country NULL NULL NULL 4080 Using where SELECT Name FROM Country WHERE (Code IN (select Country from City where City.Population > 100000) OR Name LIKE 'L%') AND @@ -134,7 +134,7 @@ 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 City ref Country Country 3 world.Country.Code 18 Using where -2 SUBQUERY CountryLanguage ALL Percentage,Language NULL NULL NULL 984 Using where +2 MATERIALIZED CountryLanguage ALL Percentage,Language NULL NULL NULL 984 Using where SELECT * FROM Country, City WHERE City.Country = Country.Code AND @@ -204,7 +204,7 @@ OR 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 City ref Country Country 3 world.Country.Code 18 Using where -3 SUBQUERY CountryLanguage index PRIMARY,Language PRIMARY 33 NULL 984 Using index +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 SELECT City.Name, Country.Name FROM City,Country @@ -233,7 +233,7 @@ where City.id not in (select capital from Country where capital is not null and population < 100000); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY City index NULL PRIMARY 4 NULL 4080 Using where; Using index -2 SUBQUERY Country ALL NULL NULL NULL NULL 239 Using where +2 MATERIALIZED Country ALL NULL NULL NULL NULL 239 Using where Q2.2e: Countries that speak French, but do not speak English @@ -287,7 +287,7 @@ AND Code = Country; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY CountryLanguage range PRIMARY,Language Language 30 NULL 45 Using index condition; Using where; Rowid-ordered scan 1 PRIMARY Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using index condition -2 SUBQUERY CountryLanguage ref PRIMARY,Language Language 30 const 47 Using index condition +2 MATERIALIZED CountryLanguage ref PRIMARY,Language Language 30 const 47 Using index condition SELECT Country.Name FROM Country, CountryLanguage WHERE Code NOT IN (SELECT Country FROM CountryLanguage WHERE Language = 'English') @@ -371,8 +371,8 @@ FROM City LEFT JOIN Country ON (Country = Code) HAVING City.Name LIKE "Santa%"); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY CountryLanguage index NULL PRIMARY 33 NULL 984 Using where; Using index -2 SUBQUERY City ALL NULL NULL NULL NULL 4080 -2 SUBQUERY Country eq_ref PRIMARY PRIMARY 3 world.City.Country 1 Using index +2 MATERIALIZED City ALL NULL NULL NULL NULL 4080 +2 MATERIALIZED Country eq_ref PRIMARY PRIMARY 3 world.City.Country 1 Using index select count(*) from CountryLanguage where (Language, Country) NOT IN @@ -399,10 +399,10 @@ WHERE Code = Country GROUP BY Code) order by Country; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY CountryLanguage index NULL PRIMARY 33 NULL 984 Using where; Using index -3 SUBQUERY CountryLanguage index PRIMARY PRIMARY 33 NULL 984 Using index; Using temporary -3 SUBQUERY Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using index -2 SUBQUERY CountryLanguage index PRIMARY PRIMARY 33 NULL 984 Using index; Using temporary -2 SUBQUERY Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using index +3 MATERIALIZED CountryLanguage index PRIMARY PRIMARY 33 NULL 984 Using index; Using temporary +3 MATERIALIZED Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using index +2 MATERIALIZED CountryLanguage index PRIMARY PRIMARY 33 NULL 984 Using index; Using temporary +2 MATERIALIZED Country eq_ref PRIMARY PRIMARY 3 world.CountryLanguage.Country 1 Using index select count(*) from CountryLanguage where @@ -429,7 +429,7 @@ capital is null); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY Country ALL NULL NULL NULL NULL 239 Using where 1 PRIMARY City eq_ref PRIMARY PRIMARY 4 world.Country.Capital 1 Using where -2 SUBQUERY City index NULL CityName 35 NULL 4080 Using index +2 MATERIALIZED City index NULL CityName 35 NULL 4080 Using index select * from Country, City where capital = id and (City.name in (SELECT name FROM City @@ -450,7 +450,7 @@ WHERE Country.Code NOT IN (SELECT Country FROM City GROUP BY Name HAVING COUNT(Name) = 1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY Country ALL NULL NULL NULL NULL 239 Using where -2 SUBQUERY City ALL NULL NULL NULL NULL 4080 Using temporary +2 MATERIALIZED City ALL NULL NULL NULL NULL 4080 Using temporary SELECT Name FROM Country WHERE Country.Code NOT IN @@ -480,7 +480,7 @@ from City where City.population > 10000000; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY City range Population Population 5 NULL 4 Using index condition; Rowid-ordered scan -2 SUBQUERY Country ALL NULL NULL NULL NULL 239 Using where +2 MATERIALIZED Country ALL NULL NULL NULL NULL 239 Using where select Name, City.id in (select capital from Country where capital is not null) as is_capital from City where City.population > 10000000; @@ -514,7 +514,7 @@ HAVING City.Name IN (select Name from Country where population < 1000000); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY City ALL Country NULL NULL NULL 4080 Using temporary; Using filesort 1 PRIMARY Country eq_ref PRIMARY PRIMARY 3 world.City.Country 1 Using index -2 SUBQUERY Country ALL Name NULL NULL NULL 239 Using where +2 MATERIALIZED Country ALL Name NULL NULL NULL 239 Using where SELECT City.Name, City.Population FROM City JOIN Country ON City.Country = Country.Code GROUP BY City.Name diff --git a/mysql-test/r/subselect_mat_cost_bugs.result b/mysql-test/r/subselect_mat_cost_bugs.result index 5623aef011e..87e1060aa87 100644 --- a/mysql-test/r/subselect_mat_cost_bugs.result +++ b/mysql-test/r/subselect_mat_cost_bugs.result @@ -260,8 +260,8 @@ WHERE alias1.f11 OR alias1.f3 = 50 AND alias1.f10 ); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY alias1 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY alias2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED alias1 ALL NULL NULL NULL NULL 2 Using where +2 MATERIALIZED alias2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join) SELECT * FROM t2 WHERE ( f12 ) IN ( SELECT alias2.f3 @@ -277,8 +277,8 @@ FROM t1 AS alias1, t1 AS alias2 WHERE (alias2.f10 = alias1.f11) AND (alias1.f11 OR alias1.f3 = 50 AND alias1.f10)); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY alias1 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY alias2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED alias1 ALL NULL NULL NULL NULL 2 Using where +2 MATERIALIZED alias2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join) SELECT * FROM t2 WHERE ( f12 ) IN ( SELECT alias2.f3 @@ -380,14 +380,14 @@ set @@optimizer_switch='in_to_exists=off,materialization=on,partial_match_rowid_ explain select * from t1 where c1 = 'a2' and (c1, c2) not in (select * from t2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 select * from t1 where c1 = 'a2' and (c1, c2) not in (select * from t2); c1 c2 set @@optimizer_switch='in_to_exists=off,materialization=on,partial_match_rowid_merge=on,partial_match_table_scan=off'; explain select * from t1 where c1 = 'a2' and (c1, c2) not in (select * from t2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 select * from t1 where c1 = 'a2' and (c1, c2) not in (select * from t2); c1 c2 drop table t1, t2; diff --git a/mysql-test/r/subselect_no_mat.result b/mysql-test/r/subselect_no_mat.result index 89f494f15fe..01b83916c4b 100644 --- a/mysql-test/r/subselect_no_mat.result +++ b/mysql-test/r/subselect_no_mat.result @@ -5860,7 +5860,7 @@ SET @@optimizer_switch='semijoin=off,materialization=on,in_to_exists=off,subquer EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 index NULL a 4 NULL 2 Using where; Using index -2 SUBQUERY t1 index NULL a 4 NULL 2 Using index +2 MATERIALIZED t1 index NULL a 4 NULL 2 Using index SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1); a 2009-01-01 diff --git a/mysql-test/r/subselect_no_opts.result b/mysql-test/r/subselect_no_opts.result index c83b930da79..2c440016931 100644 --- a/mysql-test/r/subselect_no_opts.result +++ b/mysql-test/r/subselect_no_opts.result @@ -5856,7 +5856,7 @@ SET @@optimizer_switch='semijoin=off,materialization=on,in_to_exists=off,subquer EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 index NULL a 4 NULL 2 Using where; Using index -2 SUBQUERY t1 index NULL a 4 NULL 2 Using index +2 MATERIALIZED t1 index NULL a 4 NULL 2 Using index SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1); a 2009-01-01 diff --git a/mysql-test/r/subselect_no_scache.result b/mysql-test/r/subselect_no_scache.result index bc0953afb02..606a19fa500 100644 --- a/mysql-test/r/subselect_no_scache.result +++ b/mysql-test/r/subselect_no_scache.result @@ -2977,7 +2977,7 @@ explain extended SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FR id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 10 func,func 1 100.00 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 9 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`flag` = 'N')) explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1; @@ -3567,7 +3567,7 @@ SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 9 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 23 test.t1.a,test.t1.b 1 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 9 Using temporary +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 9 Using temporary ALTER TABLE t1 ADD INDEX(a); SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); a b @@ -3579,7 +3579,7 @@ SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL a NULL NULL NULL 9 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 23 test.t1.a,test.t1.b 1 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 9 Using temporary +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 9 Using temporary DROP TABLE t1; create table t1( f1 int,f2 int); insert into t1 values (1,1),(2,2); @@ -4470,14 +4470,14 @@ EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 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 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary Warnings: Note 1003 select 1 AS `1` from <materialize> (select 1 from `test`.`t1` group by `test`.`t1`.`a`) join `test`.`t1` where (`<subquery2>`.`1` = 1) EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 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 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary Warnings: Note 1003 select 1 AS `1` from <materialize> (select 1 from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a`) join `test`.`t1` where (`<subquery2>`.`1` = 1) DROP TABLE t1; @@ -5164,8 +5164,8 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY ot1 ALL NULL NULL NULL NULL 2 1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 24 Using where 1 PRIMARY ot4 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY it2 ALL NULL NULL NULL NULL 4 -2 SUBQUERY it3 ALL NULL NULL NULL NULL 6 Using join buffer (flat, BNL join) +2 MATERIALIZED it2 ALL NULL NULL NULL NULL 4 +2 MATERIALIZED it3 ALL NULL NULL NULL NULL 6 Using join buffer (flat, BNL join) DROP TABLE IF EXISTS ot1, ot4, it2, it3; # # Bug#729039: NULL keys used to evaluate subquery @@ -5865,7 +5865,7 @@ SET @@optimizer_switch='semijoin=off,materialization=on,in_to_exists=off,subquer EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 index NULL a 4 NULL 2 Using where; Using index -2 SUBQUERY t1 index NULL a 4 NULL 2 Using index +2 MATERIALIZED t1 index NULL a 4 NULL 2 Using index SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1); a 2009-01-01 diff --git a/mysql-test/r/subselect_no_semijoin.result b/mysql-test/r/subselect_no_semijoin.result index 8a8b73eb5bb..665b4213b60 100644 --- a/mysql-test/r/subselect_no_semijoin.result +++ b/mysql-test/r/subselect_no_semijoin.result @@ -907,7 +907,7 @@ a t1.a in (select t2.a from t2) explain extended SELECT t1.a, t1.a in (select t2.a from t2) 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 SUBQUERY t2 index a a 5 NULL 3 100.00 Using index +2 MATERIALIZED t2 index a a 5 NULL 3 100.00 Using index Warnings: Note 1003 select `test`.`t1`.`a` AS `a`,<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`a` from `test`.`t2` ), <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)` from `test`.`t1` CREATE TABLE t3 (a int(11) default '0'); @@ -921,8 +921,8 @@ 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 SUBQUERY t2 index a a 5 NULL 3 100.00 Using index -2 SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 index a a 5 NULL 3 100.00 Using index +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join) Warnings: Note 1003 select `test`.`t1`.`a` AS `a`,<expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`a` from `test`.`t2` join `test`.`t3` where (`test`.`t3`.`a` = `test`.`t2`.`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; @@ -1437,7 +1437,7 @@ a explain extended select * from t2 where t2.a in (select a from t1); 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 SUBQUERY t1 index PRIMARY PRIMARY 4 NULL 4 100.00 Using index +2 MATERIALIZED t1 index PRIMARY PRIMARY 4 NULL 4 100.00 Using index Warnings: Note 1003 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 `test`.`t1`.`a` from `test`.`t1` ), <primary_index_lookup>(`test`.`t2`.`a` in <temporary table> on distinct_key where ((`test`.`t2`.`a` = `<subquery2>`.`a`)))))) select * from t2 where t2.a in (select a from t1 where t1.b <> 30); @@ -1447,7 +1447,7 @@ a 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 NULL PRIMARY 4 NULL 4 100.00 Using where; Using index -2 SUBQUERY t1 ALL PRIMARY NULL NULL NULL 4 100.00 Using where +2 MATERIALIZED t1 ALL PRIMARY NULL NULL NULL 4 100.00 Using where Warnings: Note 1003 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 `test`.`t1`.`a` from `test`.`t1` where (`test`.`t1`.`b` <> 30) ), <primary_index_lookup>(`test`.`t2`.`a` in <temporary table> on distinct_key where ((`test`.`t2`.`a` = `<subquery2>`.`a`)))))) select * from t2 where t2.a in (select t1.a from t1,t3 where t1.b=t3.a); @@ -1457,8 +1457,8 @@ 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 SUBQUERY t3 index PRIMARY PRIMARY 4 NULL 3 100.00 Using index -2 SUBQUERY t1 ALL PRIMARY NULL NULL NULL 4 100.00 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t3 index PRIMARY PRIMARY 4 NULL 3 100.00 Using index +2 MATERIALIZED t1 ALL PRIMARY NULL NULL NULL 4 100.00 Using where; Using join buffer (flat, BNL join) Warnings: Note 1003 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 `test`.`t1`.`a` from `test`.`t1` join `test`.`t3` where (`test`.`t1`.`b` = `test`.`t3`.`a`) ), <primary_index_lookup>(`test`.`t2`.`a` in <temporary table> on distinct_key where ((`test`.`t2`.`a` = `<subquery2>`.`a`)))))) drop table t1, t2, t3; @@ -1608,25 +1608,25 @@ 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 s1 s1 6 NULL 2 100.00 Using index +2 MATERIALIZED t2 index s1 s1 6 NULL 2 100.00 Using index Warnings: Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,`test`.`t1`.`s1` in ( <materialize> (select `test`.`t2`.`s1` from `test`.`t2` ), <primary_index_lookup>(`test`.`t1`.`s1` in <temporary table> on distinct_key where ((`test`.`t1`.`s1` = `<subquery2>`.`s1`)))))))) 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 s1 s1 6 NULL 2 100.00 Using index +2 MATERIALIZED t2 index s1 s1 6 NULL 2 100.00 Using index Warnings: Note 1003 select `test`.`t1`.`s1` AS `s1`,<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,`test`.`t1`.`s1` in ( <materialize> (select `test`.`t2`.`s1` from `test`.`t2` ), <primary_index_lookup>(`test`.`t1`.`s1` in <temporary table> on distinct_key where ((`test`.`t1`.`s1` = `<subquery2>`.`s1`)))))) 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 s1 s1 6 NULL 2 100.00 Using index +2 MATERIALIZED t2 index s1 s1 6 NULL 2 100.00 Using index Warnings: Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,`test`.`t1`.`s1` in ( <materialize> (select `test`.`t2`.`s1` from `test`.`t2` ), <primary_index_lookup>(`test`.`t1`.`s1` in <temporary table> on distinct_key where ((`test`.`t1`.`s1` = `<subquery2>`.`s1`)))))))) 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 -2 SUBQUERY t2 index s1 s1 6 NULL 2 50.00 Using where; Using index +2 MATERIALIZED t2 index s1 s1 6 NULL 2 50.00 Using where; Using index Warnings: Note 1003 select `test`.`t1`.`s1` AS `s1`,(not(<expr_cache><`test`.`t1`.`s1`>(<in_optimizer>(`test`.`t1`.`s1`,`test`.`t1`.`s1` in ( <materialize> (select `test`.`t2`.`s1` from `test`.`t2` where (`test`.`t2`.`s1` < 'a2') ), <primary_index_lookup>(`test`.`t1`.`s1` in <temporary table> on distinct_key where ((`test`.`t1`.`s1` = `<subquery2>`.`s1`)))))))) AS `s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2')` from `test`.`t1` drop table t1,t2; @@ -1881,7 +1881,7 @@ id text explain extended select * from t1 where id not in (select id from t1 where id < 8); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 12 100.00 Using where -2 SUBQUERY t1 range PRIMARY PRIMARY 4 NULL 7 100.00 Using where; Using index +2 MATERIALIZED t1 range PRIMARY PRIMARY 4 NULL 7 100.00 Using where; Using index Warnings: Note 1003 select `test`.`t1`.`id` AS `id`,`test`.`t1`.`text` AS `text` from `test`.`t1` where (not(<expr_cache><`test`.`t1`.`id`>(<in_optimizer>(`test`.`t1`.`id`,`test`.`t1`.`id` in ( <materialize> (select `test`.`t1`.`id` from `test`.`t1` where (`test`.`t1`.`id` < 8) ), <primary_index_lookup>(`test`.`t1`.`id` in <temporary table> on distinct_key where ((`test`.`t1`.`id` = `<subquery2>`.`id`)))))))) explain extended select * from t1 as tt where not exists (select id from t1 where id < 8 and (id = tt.id or id is null) having id is not null); @@ -2967,19 +2967,19 @@ one two test explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0') as 'test' from t1; id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 9 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`one`,`test`.`t1`.`two`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),(`test`.`t1`.`one`,`test`.`t1`.`two`) in ( <materialize> (select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') ), <primary_index_lookup>(`test`.`t1`.`one` in <temporary table> on distinct_key where ((`test`.`t1`.`one` = `<subquery2>`.`one`) and (`test`.`t1`.`two` = `<subquery2>`.`two`)))))) AS `test` from `test`.`t1` explain extended SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N'); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 Using where -2 SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 9 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` where <expr_cache><`test`.`t1`.`one`,`test`.`t1`.`two`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),(`test`.`t1`.`one`,`test`.`t1`.`two`) in ( <materialize> (select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = 'N') ), <primary_index_lookup>(`test`.`t1`.`one` in <temporary table> on distinct_key where ((`test`.`t1`.`one` = `<subquery2>`.`one`) and (`test`.`t1`.`two` = `<subquery2>`.`two`)))))) explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1; id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where; Using temporary +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 9 100.00 Using where; Using temporary Warnings: Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cache><`test`.`t1`.`one`,`test`.`t1`.`two`>(<in_optimizer>((`test`.`t1`.`one`,`test`.`t1`.`two`),(`test`.`t1`.`one`,`test`.`t1`.`two`) in ( <materialize> (select `test`.`t2`.`one`,`test`.`t2`.`two` from `test`.`t2` where (`test`.`t2`.`flag` = '0') group by `test`.`t2`.`one`,`test`.`t2`.`two` ), <primary_index_lookup>(`test`.`t1`.`one` in <temporary table> on distinct_key where ((`test`.`t1`.`one` = `<subquery2>`.`one`) and (`test`.`t1`.`two` = `<subquery2>`.`two`)))))) AS `test` from `test`.`t1` DROP TABLE t1,t2; @@ -3162,7 +3162,7 @@ INSERT INTO t2 VALUES (1),(2),(3); EXPLAIN SELECT a, a IN (SELECT a FROM t1) FROM t2; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 3 -2 SUBQUERY t1 index a a 5 NULL 5 Using index +2 MATERIALIZED t1 index a a 5 NULL 5 Using index SELECT a, a IN (SELECT a FROM t1) FROM t2; a a IN (SELECT a FROM t1) 1 1 @@ -3562,7 +3562,7 @@ EXPLAIN SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 9 Using where -2 SUBQUERY t1 ALL NULL NULL NULL NULL 9 Using temporary +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 9 Using temporary ALTER TABLE t1 ADD INDEX(a); SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); a b @@ -3573,7 +3573,7 @@ EXPLAIN SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 9 Using where -2 SUBQUERY t1 ALL NULL NULL NULL NULL 9 Using temporary +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 9 Using temporary DROP TABLE t1; create table t1( f1 int,f2 int); insert into t1 values (1,1),(2,2); @@ -4343,7 +4343,7 @@ CREATE INDEX I2 ON t1 (b); EXPLAIN SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY t1 index I1 I1 2 NULL 2 Using index +2 MATERIALIZED t1 index I1 I1 2 NULL 2 Using index SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1); a b CREATE TABLE t2 (a VARCHAR(1), b VARCHAR(10)); @@ -4353,14 +4353,14 @@ CREATE INDEX I2 ON t2 (b); EXPLAIN SELECT a,b FROM t2 WHERE b IN (SELECT a FROM t2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY t2 index I1 I1 4 NULL 2 Using index +2 MATERIALIZED t2 index I1 I1 4 NULL 2 Using index SELECT a,b FROM t2 WHERE b IN (SELECT a FROM t2); a b EXPLAIN SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1 WHERE LENGTH(a)<500); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY t1 index I1 I1 2 NULL 2 Using where; Using index +2 MATERIALIZED t1 index I1 I1 2 NULL 2 Using where; Using index SELECT a,b FROM t1 WHERE b IN (SELECT a FROM t1 WHERE LENGTH(a)<500); a b DROP TABLE t1,t2; @@ -4463,13 +4463,13 @@ INSERT INTO t1 VALUES (1),(2); EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 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 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary Warnings: Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,1 in ( <materialize> (select 1 from `test`.`t1` group by `test`.`t1`.`a` ), <primary_index_lookup>(1 in <temporary table> on distinct_key where ((1 = `<subquery2>`.`1`)))))) EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT 1 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 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary Warnings: Note 1003 select 1 AS `1` from `test`.`t1` where <expr_cache><1>(<in_optimizer>(1,1 in ( <materialize> (select 1 from `test`.`t1` where (`test`.`t1`.`a` > 3) group by `test`.`t1`.`a` ), <primary_index_lookup>(1 in <temporary table> on distinct_key where ((1 = `<subquery2>`.`1`)))))) DROP TABLE t1; @@ -5155,8 +5155,8 @@ 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 ot4 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY it2 ALL NULL NULL NULL NULL 4 -2 SUBQUERY it3 ALL NULL NULL NULL NULL 6 Using join buffer (flat, BNL join) +2 MATERIALIZED it2 ALL NULL NULL NULL NULL 4 +2 MATERIALIZED it3 ALL NULL NULL NULL NULL 6 Using join buffer (flat, BNL join) DROP TABLE IF EXISTS ot1, ot4, it2, it3; # # Bug#729039: NULL keys used to evaluate subquery @@ -5200,8 +5200,8 @@ INSERT INTO t2 VALUES (15,4); 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 SUBQUERY t2 index NULL PRIMARY 4 NULL 3 Using index -2 SUBQUERY it index PRIMARY PRIMARY 4 NULL 3 Using index; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 index NULL PRIMARY 4 NULL 3 Using index +2 MATERIALIZED it index PRIMARY PRIMARY 4 NULL 3 Using index; Using join buffer (flat, BNL join) SELECT * FROM t1 WHERE pk IN (SELECT it.pk FROM t2 JOIN t2 AS it ON 1); pk i 11 0 @@ -5444,7 +5444,7 @@ WHERE (t2.b , t1.c) NOT IN (SELECT * from t3); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY t3 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 2 SELECT t2.b , t1.c FROM t2 LEFT JOIN t1 ON t1.c < 3 WHERE (t2.b, t1.c) NOT IN (SELECT * from t3); @@ -5856,7 +5856,7 @@ SET @@optimizer_switch='semijoin=off,materialization=on,in_to_exists=off,subquer EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 index NULL a 4 NULL 2 Using where; Using index -2 SUBQUERY t1 index NULL a 4 NULL 2 Using index +2 MATERIALIZED t1 index NULL a 4 NULL 2 Using index SELECT * FROM t1 WHERE a IN (SELECT a AS field1 FROM t1 GROUP BY field1); a 2009-01-01 diff --git a/mysql-test/r/subselect_partial_match.result b/mysql-test/r/subselect_partial_match.result index a01d6375064..4e37b831326 100644 --- a/mysql-test/r/subselect_partial_match.result +++ b/mysql-test/r/subselect_partial_match.result @@ -74,7 +74,7 @@ EXPLAIN SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1; 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 ALL NULL NULL NULL NULL 3 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3 SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1; a1 a2 a3 in_res c NULL a NULL @@ -82,7 +82,7 @@ EXPLAIN SELECT * from t1 where (a1, a2, a3) NOT IN (select * 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 ALL NULL NULL NULL NULL 3 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3 SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2); a1 a2 a3 set @@optimizer_switch='partial_match_rowid_merge=off,partial_match_table_scan=on'; @@ -90,7 +90,7 @@ EXPLAIN SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1; 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 ALL NULL NULL NULL NULL 3 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3 SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1; a1 a2 a3 in_res c NULL a NULL @@ -98,7 +98,7 @@ EXPLAIN SELECT * from t1 where (a1, a2, a3) NOT IN (select * 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 ALL NULL NULL NULL NULL 3 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3 SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2); a1 a2 a3 set @@optimizer_switch=@in_exists; @@ -129,7 +129,7 @@ EXPLAIN SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1; 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 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1; a1 a2 a3 in_res NULL y NULL NULL @@ -137,7 +137,7 @@ EXPLAIN SELECT * from t1 where (a1, a2, a3) NOT IN (select * 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 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2); a1 a2 a3 set @@optimizer_switch='partial_match_rowid_merge=off,partial_match_table_scan=on'; @@ -145,7 +145,7 @@ EXPLAIN SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1; 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 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1; a1 a2 a3 in_res NULL y NULL NULL @@ -153,7 +153,7 @@ EXPLAIN SELECT * from t1 where (a1, a2, a3) NOT IN (select * 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 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2); a1 a2 a3 set @@optimizer_switch=@in_exists; @@ -188,7 +188,7 @@ EXPLAIN SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1; 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 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1; a1 a2 a3 in_res NULL g NULL NULL @@ -196,7 +196,7 @@ EXPLAIN SELECT * from t1 where (a1, a2, a3) NOT IN (select * 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 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2); a1 a2 a3 set @@optimizer_switch='partial_match_rowid_merge=off,partial_match_table_scan=on'; @@ -204,7 +204,7 @@ EXPLAIN SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1; 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 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1; a1 a2 a3 in_res NULL g NULL NULL @@ -212,7 +212,7 @@ EXPLAIN SELECT * from t1 where (a1, a2, a3) NOT IN (select * 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 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2); a1 a2 a3 set @@optimizer_switch=@in_exists; @@ -247,7 +247,7 @@ EXPLAIN SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1; 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 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1; a1 a2 a3 in_res b g NULL 0 @@ -255,7 +255,7 @@ EXPLAIN SELECT * from t1 where (a1, a2, a3) NOT IN (select * 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 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2); a1 a2 a3 b g NULL @@ -264,7 +264,7 @@ EXPLAIN SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1; 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 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 SELECT t1.*, (a1, a2, a3) IN (select * from t2) as in_res from t1; a1 a2 a3 in_res b g NULL 0 @@ -272,7 +272,7 @@ EXPLAIN SELECT * from t1 where (a1, a2, a3) NOT IN (select * 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 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 SELECT * from t1 where (a1, a2, a3) NOT IN (select * from t2); a1 a2 a3 b g NULL @@ -773,7 +773,7 @@ SELECT * FROM (SELECT * FROM t1 WHERE a1 NOT IN (SELECT b2 FROM t2)) table1; id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 100.00 2 DERIVED t1 ALL NULL NULL NULL NULL 2 100.00 Using where -3 SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00 +3 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 100.00 Warnings: Note 1003 select `table1`.`a1` AS `a1`,`table1`.`a2` AS `a2` from (select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` where (not(<in_optimizer>(`test`.`t1`.`a1`,`test`.`t1`.`a1` in ( <materialize> (select `test`.`t2`.`b2` from `test`.`t2` ), <primary_index_lookup>(`test`.`t1`.`a1` in <temporary table> on distinct_key where ((`test`.`t1`.`a1` = `<subquery3>`.`b2`)))))))) `table1` set optimizer_switch=@tmp_optimizer_switch; @@ -787,7 +787,7 @@ insert into t1 values (NULL, 'a21'), (NULL, 'a22'); explain select * from t1 where (a1, a2) not in (select a1, a2 from t1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 select * from t1 where (a1, a2) not in (select a1, a2 from t1); a1 a2 drop table t1; @@ -821,8 +821,8 @@ SELECT t3.d , t2.c FROM t3 LEFT JOIN t2 ON t3.a = t2.a); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 system NULL NULL NULL NULL 1 -2 SUBQUERY t3 system NULL NULL NULL NULL 1 -2 SUBQUERY t2 system NULL NULL NULL NULL 1 +2 MATERIALIZED t3 system NULL NULL NULL NULL 1 +2 MATERIALIZED t2 system NULL NULL NULL NULL 1 SELECT * FROM t1 WHERE (t1.d , t1.d) NOT IN ( @@ -860,7 +860,7 @@ EXPLAIN SELECT * FROM t1 WHERE (6, 4 ) NOT IN (SELECT b, a FROM t2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 SELECT * FROM t1 WHERE (6, 4 ) NOT IN (SELECT b, a FROM t2); c 0 @@ -869,7 +869,7 @@ EXPLAIN SELECT * FROM t1 WHERE (6, 4 ) NOT IN (SELECT a, b FROM t2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 SELECT * FROM t1 WHERE (6, 4 ) NOT IN (SELECT a, b FROM t2); c 0 @@ -905,7 +905,7 @@ set @@optimizer_switch='in_to_exists=off,materialization=on,partial_match_rowid_ EXPLAIN SELECT * FROM t2 WHERE ( 3 , 1 ) NOT IN ( SELECT f1 , f2 FROM t1 ); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 system NULL NULL NULL NULL 1 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 3 +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 3 SELECT * FROM t2 WHERE ( 3 , 1 ) NOT IN ( SELECT f1 , f2 FROM t1 ); f3 5 @@ -962,7 +962,7 @@ set @@optimizer_switch='materialization=on,partial_match_rowid_merge=on,partial_ EXPLAIN SELECT * FROM t1 WHERE (a, b) NOT IN (SELECT c, d FROM t2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY t2 ALL NULL NULL NULL NULL 3 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3 SELECT * FROM t1 WHERE (a, b) NOT IN (SELECT c, d FROM t2); a b 0 NULL @@ -973,7 +973,7 @@ a b subq_res EXPLAIN SELECT * FROM t1 WHERE (a, b) NOT IN (SELECT c, d FROM t2 WHERE d is not NULL); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where -2 SUBQUERY t2 ALL NULL NULL NULL NULL 3 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3 Using where SELECT * FROM t1 WHERE (a, b) NOT IN (SELECT c, d FROM t2 WHERE d is not NULL); a b 0 NULL diff --git a/mysql-test/r/subselect_sj.result b/mysql-test/r/subselect_sj.result index a9b4b4cb0cf..9f37dbf4e04 100644 --- a/mysql-test/r/subselect_sj.result +++ b/mysql-test/r/subselect_sj.result @@ -79,7 +79,7 @@ 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 A ALL NULL NULL NULL NULL 3 100.00 Using where 1 PRIMARY B ALL NULL NULL NULL NULL 3 100.00 Using where -2 SUBQUERY t10 index PRIMARY PRIMARY 4 NULL 10 100.00 Using index +2 MATERIALIZED t10 index PRIMARY PRIMARY 4 NULL 10 100.00 Using index Warnings: Note 1003 select `test`.`t1`.`A` AS `A`,`test`.`t1`.`B` AS `B`,`test`.`A`.`A` AS `A`,`test`.`A`.`B` AS `B`,`test`.`B`.`A` AS `A`,`test`.`B`.`B` AS `B` from `test`.`t1` left join (`test`.`t2` `A` join `test`.`t2` `B`) on((<in_optimizer>(`test`.`B`.`A`,`test`.`B`.`A` in ( <mAteriAlize> (select `test`.`t10`.`pk` from `test`.`t10` ), <primAry_index_lookup>(`test`.`B`.`A` in <temporAry tABle> on distinct_key where ((`test`.`B`.`A` = `<suBquery2>`.`pk`))))) And (`test`.`A`.`A` = `test`.`t1`.`A`))) where 1 t2 should be wrapped into OJ-nest, so we have "t1 LJ (t2 J t10)" @@ -88,7 +88,7 @@ select * from t1 left join t2 on (t2.A= t1.A And t2.A in (select pk from t10)); 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 t2 ALL NULL NULL NULL NULL 3 100.00 Using where -2 SUBQUERY t10 index PRIMARY PRIMARY 4 NULL 10 100.00 Using index +2 MATERIALIZED t10 index PRIMARY PRIMARY 4 NULL 10 100.00 Using index Warnings: Note 1003 select `test`.`t1`.`A` AS `A`,`test`.`t1`.`B` AS `B`,`test`.`t2`.`A` AS `A`,`test`.`t2`.`B` AS `B` from `test`.`t1` left join `test`.`t2` on((<in_optimizer>(`test`.`t2`.`A`,`test`.`t2`.`A` in ( <mAteriAlize> (select `test`.`t10`.`pk` from `test`.`t10` ), <primAry_index_lookup>(`test`.`t2`.`A` in <temporAry tABle> on distinct_key where ((`test`.`t2`.`A` = `<suBquery2>`.`pk`))))) And (`test`.`t2`.`A` = `test`.`t1`.`A`))) where 1 we shouldn't flatten if we're going to get a join of > MAX_TABLES. @@ -726,8 +726,8 @@ FROM it1 LEFT JOIN it2 ON it2.datetime_key); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 11 1 PRIMARY ot1 ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY it1 index NULL int_key 4 NULL 2 Using index -2 SUBQUERY it2 ALL int_key,datetime_key NULL NULL NULL 20 Using where +2 MATERIALIZED it1 index NULL int_key 4 NULL 2 Using index +2 MATERIALIZED it2 ALL int_key,datetime_key NULL NULL NULL 20 Using where DROP TABLE ot1, it1, it2; # End of BUG#38075 # @@ -800,7 +800,7 @@ EXPLAIN EXTENDED SELECT pk FROM t1 WHERE (a, b) IN (SELECT a, b FROM t2 WHERE pk 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> eq_ref distinct_key distinct_key 13 func,func 1 100.00 -2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Rowid-ordered scan +2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Rowid-ordered scan Warnings: Note 1003 select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`pk` > 0)) SELECT pk FROM t1 WHERE (a, b) IN (SELECT a, b FROM t2 WHERE pk > 0); @@ -969,7 +969,7 @@ WHERE `varchar_nokey` < 'n' XOR `pk` ) ; id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 18 100.00 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func,func 1 100.00 -2 SUBQUERY t1 ALL varchar_key NULL NULL NULL 15 100.00 Using where +2 MATERIALIZED t1 ALL varchar_key NULL NULL NULL 15 100.00 Using where Warnings: Note 1003 select `test`.`t2`.`varchar_nokey` AS `varchar_nokey` from `test`.`t2` semi join (`test`.`t1`) where ((`test`.`t1`.`varchar_nokey` = `test`.`t1`.`varchar_key`) and ((`test`.`t1`.`varchar_key` < 'n') xor `test`.`t1`.`pk`)) SELECT varchar_nokey @@ -1052,8 +1052,8 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 5 1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 14 func 1 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 14 func 1 -3 SUBQUERY t3 ALL NULL NULL NULL NULL 5 Using where -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where +3 MATERIALIZED t3 ALL NULL NULL NULL NULL 5 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where SELECT * FROM t1 WHERE t1.val IN (SELECT t2.val FROM t2 @@ -1275,8 +1275,8 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1 1 PRIMARY B ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) 1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 5 func 1 -2 SUBQUERY C ALL NULL NULL NULL NULL 3 -3 SUBQUERY D ALL NULL NULL NULL NULL 3 +2 MATERIALIZED C ALL NULL NULL NULL NULL 3 +3 MATERIALIZED D ALL NULL NULL NULL NULL 3 drop table t1, t2; # # BUG#784441: Abort on semijoin with a view as the inner table @@ -1291,7 +1291,7 @@ SELECT * FROM t1 INNER JOIN t2 ON t2.a != 0 AND t2.a IN (SELECT * FROM v1); 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 SUBQUERY <derived3> system NULL NULL NULL NULL 1 +2 MATERIALIZED <derived3> system NULL NULL NULL NULL 1 3 DERIVED NULL NULL NULL NULL NULL NULL NULL No tables used SELECT * FROM t1 INNER JOIN t2 ON t2.a != 0 AND t2.a IN (SELECT * FROM v1); a a @@ -1386,8 +1386,8 @@ explain select * from t3 where t3.b in (select t2.b from t1 left join t2 on t1.a 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 t3 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using where select * from t3 where t3.b in (select t2.b from t1 left join t2 on t1.a=t2.a); b drop table t1, t2, t3; @@ -1990,8 +1990,8 @@ 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 5 func 1 -2 SUBQUERY t3 ALL NULL NULL NULL NULL 13 Using where -2 SUBQUERY t2 ref b b 4 test.t3.a 1 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 diff --git a/mysql-test/r/subselect_sj2.result b/mysql-test/r/subselect_sj2.result index d476de2dea1..cd147e55d1d 100644 --- a/mysql-test/r/subselect_sj2.result +++ b/mysql-test/r/subselect_sj2.result @@ -48,7 +48,7 @@ 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 <subquery2> ALL distinct_key NULL NULL NULL 3 1 PRIMARY t2 ref b b 5 test.t1.a 2 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 3 Using where +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 @@ -68,7 +68,7 @@ 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 5 func 1 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 3 +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 3 select * from t3 where b in (select a from t1); a b pk1 pk2 pk3 1 1 1 1 1 @@ -94,7 +94,7 @@ explain select * from t3 where b in (select a from t0); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 10 1 PRIMARY t3 ref b b 5 test.t0.a 1 -2 SUBQUERY t0 ALL NULL NULL NULL NULL 10 Using where +2 MATERIALIZED t0 ALL NULL NULL NULL NULL 10 Using where set @save_ecp= @@engine_condition_pushdown; set engine_condition_pushdown=0; select * from t3 where b in (select A.a+B.a from t0 A, t0 B where B.a<5); @@ -148,7 +148,7 @@ from t1 ot where a in (select a from t2 it); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 22 1 PRIMARY ot ALL NULL NULL NULL NULL 32 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY it ALL NULL NULL NULL NULL 22 +2 MATERIALIZED it ALL NULL NULL NULL NULL 22 select a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z from t1 ot where a in (select a from t2 it); @@ -181,7 +181,7 @@ from t2 ot where a in (select a from t1 it); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY ot ALL NULL NULL NULL NULL 22 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1 -2 SUBQUERY it ALL NULL NULL NULL NULL 32 +2 MATERIALIZED it ALL NULL NULL NULL NULL 32 select a, mid(filler1, 1,10), length(filler1)=length(filler2) from t2 ot where a in (select a from t1 it); @@ -216,7 +216,7 @@ from t1 ot where a in (select a from t2 it); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 22 1 PRIMARY ot ALL NULL NULL NULL NULL 52 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY it ALL NULL NULL NULL NULL 22 +2 MATERIALIZED it ALL NULL NULL NULL NULL 22 select a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z from t1 ot where a in (select a from t2 it); @@ -249,7 +249,7 @@ from t2 ot where a in (select a from t1 it); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY ot ALL NULL NULL NULL NULL 22 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1 -2 SUBQUERY it ALL NULL NULL NULL NULL 52 +2 MATERIALIZED it ALL NULL NULL NULL NULL 52 select a, mid(filler1, 1,10), length(filler1)=length(filler2) from t2 ot where a in (select a from t1 it); @@ -290,9 +290,9 @@ 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 9 func 1 Using where -2 SUBQUERY t1 index a a 5 NULL 10 Using where; Using index -2 SUBQUERY t2 ref a a 5 test.t1.a 1 Using index -2 SUBQUERY t3 ref a a 5 test.t1.a 1 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; CREATE TABLE t1 ( ID int(11) NOT NULL auto_increment, @@ -370,7 +370,7 @@ SELECT t2.CountryCode FROM t2 WHERE Population > 5000000); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 31 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL CountryCode NULL NULL NULL 545 Using where +2 MATERIALIZED t2 ALL CountryCode NULL NULL NULL 545 Using where SELECT Name FROM t1 WHERE t1.Code IN ( SELECT t2.CountryCode FROM t2 WHERE Population > 5000000); @@ -605,7 +605,7 @@ select * from t1 left join t2 on (t2.a= t1.a and t2.a in (select pk from t3)); 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 3 Using where -2 SUBQUERY t3 index PRIMARY PRIMARY 4 NULL 10 Using index +2 MATERIALIZED t3 index PRIMARY PRIMARY 4 NULL 10 Using index drop table t0, t1, t2, t3; create table t1 (a int); insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); @@ -719,7 +719,7 @@ 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 5 func 1 -2 SUBQUERY t3 index a a 5 NULL 30000 Using index +2 MATERIALIZED t3 index a a 5 NULL 30000 Using index select count(a) from t2 where a in ( SELECT a FROM t3); count(a) 1000 @@ -878,7 +878,7 @@ 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 <derived3> ALL NULL NULL NULL NULL 2 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1 -2 SUBQUERY t4 ALL NULL NULL NULL NULL 2 +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 WHERE t3.b IN (SELECT b FROM t4); diff --git a/mysql-test/r/subselect_sj2_jcl6.result b/mysql-test/r/subselect_sj2_jcl6.result index 32d8d245477..0f990d44545 100644 --- a/mysql-test/r/subselect_sj2_jcl6.result +++ b/mysql-test/r/subselect_sj2_jcl6.result @@ -57,7 +57,7 @@ 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 <subquery2> ALL distinct_key NULL NULL NULL 3 1 PRIMARY t2 ref b b 5 test.t1.a 2 Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan -2 SUBQUERY t1 ALL NULL NULL NULL NULL 3 Using where +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 @@ -77,7 +77,7 @@ 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 5 func 1 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 3 +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 3 select * from t3 where b in (select a from t1); a b pk1 pk2 pk3 1 1 1 1 1 @@ -103,7 +103,7 @@ explain select * from t3 where b in (select a from t0); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 10 1 PRIMARY t3 ref b b 5 test.t0.a 1 Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan -2 SUBQUERY t0 ALL NULL NULL NULL NULL 10 Using where +2 MATERIALIZED t0 ALL NULL NULL NULL NULL 10 Using where set @save_ecp= @@engine_condition_pushdown; set engine_condition_pushdown=0; select * from t3 where b in (select A.a+B.a from t0 A, t0 B where B.a<5); @@ -157,7 +157,7 @@ from t1 ot where a in (select a from t2 it); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 22 1 PRIMARY ot hash_ALL NULL #hash#$hj 5 test.it.a 32 Using where; Using join buffer (flat, BNLH join) -2 SUBQUERY it ALL NULL NULL NULL NULL 22 Using where +2 MATERIALIZED it ALL NULL NULL NULL NULL 22 Using where select a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z from t1 ot where a in (select a from t2 it); @@ -190,7 +190,7 @@ from t2 ot where a in (select a from t1 it); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY ot ALL NULL NULL NULL NULL 22 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1 -2 SUBQUERY it ALL NULL NULL NULL NULL 32 +2 MATERIALIZED it ALL NULL NULL NULL NULL 32 select a, mid(filler1, 1,10), length(filler1)=length(filler2) from t2 ot where a in (select a from t1 it); @@ -225,7 +225,7 @@ from t1 ot where a in (select a from t2 it); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 22 1 PRIMARY ot hash_ALL NULL #hash#$hj 5 test.it.a 52 Using where; Using join buffer (flat, BNLH join) -2 SUBQUERY it ALL NULL NULL NULL NULL 22 Using where +2 MATERIALIZED it ALL NULL NULL NULL NULL 22 Using where select a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z from t1 ot where a in (select a from t2 it); @@ -258,7 +258,7 @@ from t2 ot where a in (select a from t1 it); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY ot ALL NULL NULL NULL NULL 22 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1 -2 SUBQUERY it ALL NULL NULL NULL NULL 52 +2 MATERIALIZED it ALL NULL NULL NULL NULL 52 select a, mid(filler1, 1,10), length(filler1)=length(filler2) from t2 ot where a in (select a from t1 it); @@ -299,9 +299,9 @@ 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 9 func 1 Using where -2 SUBQUERY t1 index a a 5 NULL 10 Using where; Using index -2 SUBQUERY t2 ref a a 5 test.t1.a 1 Using index -2 SUBQUERY t3 ref a a 5 test.t1.a 1 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; CREATE TABLE t1 ( ID int(11) NOT NULL auto_increment, @@ -379,7 +379,7 @@ SELECT t2.CountryCode FROM t2 WHERE Population > 5000000); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 31 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL CountryCode NULL NULL NULL 545 Using where +2 MATERIALIZED t2 ALL CountryCode NULL NULL NULL 545 Using where SELECT Name FROM t1 WHERE t1.Code IN ( SELECT t2.CountryCode FROM t2 WHERE Population > 5000000); @@ -616,7 +616,7 @@ select * from t1 left join t2 on (t2.a= t1.a and t2.a in (select pk from t3)); 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 hash_ALL NULL #hash#$hj 5 test.t1.a 3 Using where; Using join buffer (flat, BNLH join) -2 SUBQUERY t3 index PRIMARY PRIMARY 4 NULL 10 Using index +2 MATERIALIZED t3 index PRIMARY PRIMARY 4 NULL 10 Using index drop table t0, t1, t2, t3; create table t1 (a int); insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); @@ -730,7 +730,7 @@ explain select count(a) from t2 where a in ( SELECT a FROM t3); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 index a a 5 NULL 1000 Using index 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1 -2 SUBQUERY t3 index a a 5 NULL 30000 Using index +2 MATERIALIZED t3 index a a 5 NULL 30000 Using index select count(a) from t2 where a in ( SELECT a FROM t3); count(a) 1000 @@ -889,7 +889,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t2 hash_ALL NULL #hash#$hj 5 test.t3.a 1 Using where; Using join buffer (flat, BNLH join) 1 PRIMARY <derived3> ALL NULL NULL NULL NULL 2 Using join buffer (incremental, BNL join) 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1 -2 SUBQUERY t4 ALL NULL NULL NULL NULL 2 +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 WHERE t3.b IN (SELECT b FROM t4); diff --git a/mysql-test/r/subselect_sj2_mat.result b/mysql-test/r/subselect_sj2_mat.result index 4a61266a317..6f3e1de4113 100644 --- a/mysql-test/r/subselect_sj2_mat.result +++ b/mysql-test/r/subselect_sj2_mat.result @@ -50,7 +50,7 @@ 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 <subquery2> ALL distinct_key NULL NULL NULL 3 1 PRIMARY t2 ref b b 5 test.t1.a 2 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 3 Using where +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 @@ -70,7 +70,7 @@ 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 5 func 1 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 3 +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 3 select * from t3 where b in (select a from t1); a b pk1 pk2 pk3 1 1 1 1 1 @@ -96,7 +96,7 @@ explain select * from t3 where b in (select a from t0); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 10 1 PRIMARY t3 ref b b 5 test.t0.a 1 -2 SUBQUERY t0 ALL NULL NULL NULL NULL 10 Using where +2 MATERIALIZED t0 ALL NULL NULL NULL NULL 10 Using where set @save_ecp= @@engine_condition_pushdown; set engine_condition_pushdown=0; select * from t3 where b in (select A.a+B.a from t0 A, t0 B where B.a<5); @@ -150,7 +150,7 @@ from t1 ot where a in (select a from t2 it); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 22 1 PRIMARY ot ALL NULL NULL NULL NULL 32 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY it ALL NULL NULL NULL NULL 22 +2 MATERIALIZED it ALL NULL NULL NULL NULL 22 select a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z from t1 ot where a in (select a from t2 it); @@ -183,7 +183,7 @@ from t2 ot where a in (select a from t1 it); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY ot ALL NULL NULL NULL NULL 22 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1 -2 SUBQUERY it ALL NULL NULL NULL NULL 32 +2 MATERIALIZED it ALL NULL NULL NULL NULL 32 select a, mid(filler1, 1,10), length(filler1)=length(filler2) from t2 ot where a in (select a from t1 it); @@ -218,7 +218,7 @@ from t1 ot where a in (select a from t2 it); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 22 1 PRIMARY ot ALL NULL NULL NULL NULL 52 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY it ALL NULL NULL NULL NULL 22 +2 MATERIALIZED it ALL NULL NULL NULL NULL 22 select a, mid(filler1, 1,10), length(filler1)=length(filler2) as Z from t1 ot where a in (select a from t2 it); @@ -251,7 +251,7 @@ from t2 ot where a in (select a from t1 it); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY ot ALL NULL NULL NULL NULL 22 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1 -2 SUBQUERY it ALL NULL NULL NULL NULL 52 +2 MATERIALIZED it ALL NULL NULL NULL NULL 52 select a, mid(filler1, 1,10), length(filler1)=length(filler2) from t2 ot where a in (select a from t1 it); @@ -292,9 +292,9 @@ 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 9 func 1 Using where -2 SUBQUERY t1 index a a 5 NULL 10 Using where; Using index -2 SUBQUERY t2 ref a a 5 test.t1.a 1 Using index -2 SUBQUERY t3 ref a a 5 test.t1.a 1 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; CREATE TABLE t1 ( ID int(11) NOT NULL auto_increment, @@ -372,7 +372,7 @@ SELECT t2.CountryCode FROM t2 WHERE Population > 5000000); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL PRIMARY NULL NULL NULL 31 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1 -2 SUBQUERY t2 ALL CountryCode NULL NULL NULL 545 Using where +2 MATERIALIZED t2 ALL CountryCode NULL NULL NULL 545 Using where SELECT Name FROM t1 WHERE t1.Code IN ( SELECT t2.CountryCode FROM t2 WHERE Population > 5000000); @@ -607,7 +607,7 @@ select * from t1 left join t2 on (t2.a= t1.a and t2.a in (select pk from t3)); 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 3 Using where -2 SUBQUERY t3 index PRIMARY PRIMARY 4 NULL 10 Using index +2 MATERIALIZED t3 index PRIMARY PRIMARY 4 NULL 10 Using index drop table t0, t1, t2, t3; create table t1 (a int); insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9); @@ -721,7 +721,7 @@ 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 5 func 1 -2 SUBQUERY t3 index a a 5 NULL 30000 Using index +2 MATERIALIZED t3 index a a 5 NULL 30000 Using index select count(a) from t2 where a in ( SELECT a FROM t3); count(a) 1000 @@ -880,7 +880,7 @@ 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 <derived3> ALL NULL NULL NULL NULL 2 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1 -2 SUBQUERY t4 ALL NULL NULL NULL NULL 2 +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 WHERE t3.b IN (SELECT b FROM t4); diff --git a/mysql-test/r/subselect_sj_jcl6.result b/mysql-test/r/subselect_sj_jcl6.result index 68a130b04bf..03940e0e5eb 100644 --- a/mysql-test/r/subselect_sj_jcl6.result +++ b/mysql-test/r/subselect_sj_jcl6.result @@ -90,7 +90,7 @@ 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 A ALL NULL NULL NULL NULL 3 100.00 Using where; Using join Buffer (flAt, BNL join) 1 PRIMARY B ALL NULL NULL NULL NULL 3 100.00 Using where; Using join Buffer (incrementAl, BNL join) -2 SUBQUERY t10 index PRIMARY PRIMARY 4 NULL 10 100.00 Using index +2 MATERIALIZED t10 index PRIMARY PRIMARY 4 NULL 10 100.00 Using index Warnings: Note 1003 select `test`.`t1`.`A` AS `A`,`test`.`t1`.`B` AS `B`,`test`.`A`.`A` AS `A`,`test`.`A`.`B` AS `B`,`test`.`B`.`A` AS `A`,`test`.`B`.`B` AS `B` from `test`.`t1` left join (`test`.`t2` `A` join `test`.`t2` `B`) on((<in_optimizer>(`test`.`B`.`A`,`test`.`B`.`A` in ( <mAteriAlize> (select `test`.`t10`.`pk` from `test`.`t10` ), <primAry_index_lookup>(`test`.`B`.`A` in <temporAry tABle> on distinct_key where ((`test`.`B`.`A` = `<suBquery2>`.`pk`))))) And (`test`.`A`.`A` = `test`.`t1`.`A`))) where 1 t2 should be wrapped into OJ-nest, so we have "t1 LJ (t2 J t10)" @@ -99,7 +99,7 @@ select * from t1 left join t2 on (t2.A= t1.A And t2.A in (select pk from t10)); 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 t2 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join Buffer (flAt, BNL join) -2 SUBQUERY t10 index PRIMARY PRIMARY 4 NULL 10 100.00 Using index +2 MATERIALIZED t10 index PRIMARY PRIMARY 4 NULL 10 100.00 Using index Warnings: Note 1003 select `test`.`t1`.`A` AS `A`,`test`.`t1`.`B` AS `B`,`test`.`t2`.`A` AS `A`,`test`.`t2`.`B` AS `B` from `test`.`t1` left join `test`.`t2` on((<in_optimizer>(`test`.`t2`.`A`,`test`.`t2`.`A` in ( <mAteriAlize> (select `test`.`t10`.`pk` from `test`.`t10` ), <primAry_index_lookup>(`test`.`t2`.`A` in <temporAry tABle> on distinct_key where ((`test`.`t2`.`A` = `<suBquery2>`.`pk`))))) And (`test`.`t2`.`A` = `test`.`t1`.`A`))) where 1 we shouldn't flatten if we're going to get a join of > MAX_TABLES. @@ -737,8 +737,8 @@ FROM it1 LEFT JOIN it2 ON it2.datetime_key); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 11 1 PRIMARY ot1 ALL NULL NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY it1 index NULL int_key 4 NULL 2 Using index -2 SUBQUERY it2 ALL int_key,datetime_key NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED it1 index NULL int_key 4 NULL 2 Using index +2 MATERIALIZED it2 ALL int_key,datetime_key NULL NULL NULL 20 Using where; Using join buffer (flat, BNL join) DROP TABLE ot1, it1, it2; # End of BUG#38075 # @@ -811,7 +811,7 @@ EXPLAIN EXTENDED SELECT pk FROM t1 WHERE (a, b) IN (SELECT a, b FROM t2 WHERE pk 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> eq_ref distinct_key distinct_key 13 func,func 1 100.00 -2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Rowid-ordered scan +2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Rowid-ordered scan Warnings: Note 1003 select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`pk` > 0)) SELECT pk FROM t1 WHERE (a, b) IN (SELECT a, b FROM t2 WHERE pk > 0); @@ -980,7 +980,7 @@ WHERE `varchar_nokey` < 'n' XOR `pk` ) ; id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 18 100.00 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func,func 1 100.00 -2 SUBQUERY t1 ALL varchar_key NULL NULL NULL 15 100.00 Using where +2 MATERIALIZED t1 ALL varchar_key NULL NULL NULL 15 100.00 Using where Warnings: Note 1003 select `test`.`t2`.`varchar_nokey` AS `varchar_nokey` from `test`.`t2` semi join (`test`.`t1`) where ((`test`.`t1`.`varchar_nokey` = `test`.`t1`.`varchar_key`) and ((`test`.`t1`.`varchar_key` < 'n') xor `test`.`t1`.`pk`)) SELECT varchar_nokey @@ -1063,8 +1063,8 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 5 1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 14 func 1 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 14 func 1 -3 SUBQUERY t3 ALL NULL NULL NULL NULL 5 Using where -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 Using where +3 MATERIALIZED t3 ALL NULL NULL NULL NULL 5 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where SELECT * FROM t1 WHERE t1.val IN (SELECT t2.val FROM t2 @@ -1286,8 +1286,8 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1 1 PRIMARY B ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) 1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 5 func 1 -2 SUBQUERY C ALL NULL NULL NULL NULL 3 -3 SUBQUERY D ALL NULL NULL NULL NULL 3 +2 MATERIALIZED C ALL NULL NULL NULL NULL 3 +3 MATERIALIZED D ALL NULL NULL NULL NULL 3 drop table t1, t2; # # BUG#784441: Abort on semijoin with a view as the inner table @@ -1302,7 +1302,7 @@ SELECT * FROM t1 INNER JOIN t2 ON t2.a != 0 AND t2.a IN (SELECT * FROM v1); 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 SUBQUERY <derived3> system NULL NULL NULL NULL 1 +2 MATERIALIZED <derived3> system NULL NULL NULL NULL 1 3 DERIVED NULL NULL NULL NULL NULL NULL NULL No tables used SELECT * FROM t1 INNER JOIN t2 ON t2.a != 0 AND t2.a IN (SELECT * FROM v1); a a @@ -1397,8 +1397,8 @@ explain select * from t3 where t3.b in (select t2.b from t1 left join t2 on t1.a 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 t3 ALL NULL NULL NULL NULL 8 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join) +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join) select * from t3 where t3.b in (select t2.b from t1 left join t2 on t1.a=t2.a); b drop table t1, t2, t3; @@ -2001,8 +2001,8 @@ 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 5 func 1 -2 SUBQUERY t3 ALL NULL NULL NULL NULL 13 Using where -2 SUBQUERY t2 ref b b 4 test.t3.a 1 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 diff --git a/mysql-test/r/subselect_sj_mat.result b/mysql-test/r/subselect_sj_mat.result index 472cadf04c4..b578749b862 100644 --- a/mysql-test/r/subselect_sj_mat.result +++ b/mysql-test/r/subselect_sj_mat.result @@ -46,7 +46,7 @@ select * from t1 where a1 in (select b1 from t2 where b1 > '0'); 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 9 func 1 100.00 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b1` > '0')) select * from t1 where a1 in (select b1 from t2 where b1 > '0'); @@ -58,7 +58,7 @@ select * from t1 where a1 in (select b1 from t2 where b1 > '0' group by b1); 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 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 9 test.t1.a1 1 100.00 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary Warnings: Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from <materialize> (select `test`.`t2`.`b1` from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1`) join `test`.`t1` where (`<subquery2>`.`b1` = `test`.`t1`.`a1`) select * from t1 where a1 in (select b1 from t2 where b1 > '0' group by b1); @@ -70,7 +70,7 @@ select * from t1 where (a1, a2) in (select b1, b2 from t2 where b1 > '0' group b 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 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1 100.00 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary Warnings: Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1`,`test`.`t2`.`b2`) join `test`.`t1` where ((`<subquery2>`.`b2` = `test`.`t1`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1`.`a1`)) select * from t1 where (a1, a2) in (select b1, b2 from t2 where b1 > '0' group by b1, b2); @@ -82,7 +82,7 @@ select * from t1 where (a1, a2) in (select b1, min(b2) from t2 where b1 > '0' gr 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 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1 100.00 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary Warnings: Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from <materialize> (select `test`.`t2`.`b1`,min(`test`.`t2`.`b2`) from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1`) join `test`.`t1` where ((`<subquery2>`.`min(b2)` = `test`.`t1`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1`.`a1`)) select * from t1 where (a1, a2) in (select b1, min(b2) from t2 where b1 > '0' group by b1); @@ -105,7 +105,7 @@ select * from t1i where a1 in (select b1 from t2i where b1 > '0' group by b1); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY <subquery2> ALL distinct_key # NULL # 3 100.00 # 1 PRIMARY t1i ref it1i1,it1i3 # 9 # 1 100.00 # -2 SUBQUERY t2i range it2i1,it2i3 # 9 # 3 100.00 # +2 MATERIALIZED t2i range it2i1,it2i3 # 9 # 3 100.00 # Warnings: Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from <materialize> (select `test`.`t2i`.`b1` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`) join `test`.`t1i` where (`test`.`t1i`.`a1` = `<subquery2>`.`b1`) select * from t1i where a1 in (select b1 from t2i where b1 > '0' group by b1); @@ -128,7 +128,7 @@ select * from t1i where (a1, a2) in (select b1, b2 from t2i where b1 > '0' group id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1i index it1i1,it1i2,it1i3 # # # 3 100.00 # 1 PRIMARY <subquery2> eq_ref distinct_key # # # 1 100.00 # -2 SUBQUERY t2i range it2i1,it2i3 # # # 3 100.00 # +2 MATERIALIZED t2i range it2i1,it2i3 # # # 3 100.00 # Warnings: Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`,`test`.`t2i`.`b2`) join `test`.`t1i` where ((`<subquery2>`.`b2` = `test`.`t1i`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1i`.`a1`)) select * from t1i where (a1, a2) in (select b1, b2 from t2i where b1 > '0' group by b1, b2); @@ -140,7 +140,7 @@ select * from t1i where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1i index it1i1,it1i2,it1i3 # # # 3 100.00 # 1 PRIMARY <subquery2> eq_ref distinct_key # # # 1 100.00 # -2 SUBQUERY t2i range it2i1,it2i3 # # # 3 100.00 # +2 MATERIALIZED t2i range it2i1,it2i3 # # # 3 100.00 # Warnings: Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from <materialize> (select `test`.`t2i`.`b1`,min(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`) join `test`.`t1i` where ((`<subquery2>`.`min(b2)` = `test`.`t1i`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1i`.`a1`)) select * from t1i where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1); @@ -152,7 +152,7 @@ select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1); 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 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1 100.00 -2 SUBQUERY t2i range NULL it2i3 9 NULL 3 100.00 Using index for group-by +2 MATERIALIZED t2i range NULL it2i3 9 NULL 3 100.00 Using index for group-by Warnings: Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from <materialize> (select `test`.`t2i`.`b1`,max(`test`.`t2i`.`b2`) from `test`.`t2i` group by `test`.`t2i`.`b1`) join `test`.`t1` where ((`<subquery2>`.`max(b2)` = `test`.`t1`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1`.`a1`)) select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1); @@ -164,12 +164,12 @@ execute st1; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1 -2 SUBQUERY t2i range NULL it2i3 9 NULL 3 Using index for group-by +2 MATERIALIZED t2i range NULL it2i3 9 NULL 3 Using index for group-by execute st1; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1 -2 SUBQUERY t2i range NULL it2i3 9 NULL 3 Using index for group-by +2 MATERIALIZED t2i range NULL it2i3 9 NULL 3 Using index for group-by prepare st2 from "select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1)"; execute st2; a1 a2 @@ -184,7 +184,7 @@ select * from t1 where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' g 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 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1 100.00 -2 SUBQUERY t2i range it2i1,it2i3 it2i3 18 NULL 3 100.00 Using where; Using index for group-by +2 MATERIALIZED t2i range it2i1,it2i3 it2i3 18 NULL 3 100.00 Using where; Using index for group-by Warnings: Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from <materialize> (select `test`.`t2i`.`b1`,min(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`) join `test`.`t1` where ((`<subquery2>`.`min(b2)` = `test`.`t1`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1`.`a1`)) select * from t1 where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1); @@ -232,7 +232,7 @@ select * from t1 where (a1, a2) in (select b1, b2 from t2 order by b1, b2); 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 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1 100.00 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Warnings: Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` order by `test`.`t2`.`b1`,`test`.`t2`.`b2`) join `test`.`t1` where ((`<subquery2>`.`b2` = `test`.`t1`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1`.`a1`)) select * from t1 where (a1, a2) in (select b1, b2 from t2 order by b1, b2); @@ -244,7 +244,7 @@ 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 t1i index it1i1,it1i2,it1i3 it1i3 18 NULL 3 100.00 Using where; Using index 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1i.a1,test.t1i.a2 1 100.00 -2 SUBQUERY t2i index NULL it2i3 18 NULL 5 100.00 Using index +2 MATERIALIZED t2i index NULL it2i3 18 NULL 5 100.00 Using index Warnings: Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` order by `test`.`t2i`.`b1`,`test`.`t2i`.`b2`) join `test`.`t1i` where ((`<subquery2>`.`b2` = `test`.`t1i`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1i`.`a1`)) select * from t1i where (a1, a2) in (select b1, b2 from t2i order by b1, b2); @@ -299,9 +299,9 @@ 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 <subquery3> eq_ref distinct_key distinct_key 18 func,func 1 100.00 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 func,func 1 100.00 -3 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where -3 SUBQUERY t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join) -2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where +3 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where +3 MATERIALIZED t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 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 `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`.`b2` = `test`.`t3`.`c2`) and (`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and (`test`.`t2`.`b1` > '0') and (`test`.`t3`.`c2` > '0')) select * from t1 @@ -341,11 +341,11 @@ 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 <subquery5> eq_ref distinct_key distinct_key 18 func,func 1 100.00 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 func,func 1 100.00 -5 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where -5 SUBQUERY t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join) -2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 100.00 Using where -4 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where -3 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where +5 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where +5 MATERIALIZED t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join) +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where +4 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where +3 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where Warnings: Note 1003 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`.`b2` = `test`.`t3`.`c2`) and (`test`.`t2i`.`b1` = `test`.`t3`.`c1`) and (<expr_cache><`test`.`t2`.`b2`>(<in_optimizer>(`test`.`t2`.`b2`,`test`.`t2`.`b2` in ( <materialize> (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 `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')) select * from t1 @@ -367,9 +367,9 @@ 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 <subquery5> eq_ref distinct_key distinct_key 18 func,func 1 100.00 1 PRIMARY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join) -5 SUBQUERY t3c ALL NULL NULL NULL NULL 4 100.00 Using where -5 SUBQUERY t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join) -4 SUBQUERY t3b ALL NULL NULL NULL NULL 4 100.00 Using where +5 MATERIALIZED t3c ALL NULL NULL NULL NULL 4 100.00 Using where +5 MATERIALIZED t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join) +4 MATERIALIZED t3b ALL NULL NULL NULL NULL 4 100.00 Using where 3 DEPENDENT SUBQUERY t3a ALL NULL NULL NULL NULL 4 100.00 Using where Warnings: Note 1276 Field or reference 'test.t1.a1' of SELECT #3 was resolved in SELECT #1 @@ -401,9 +401,9 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t3 ALL NULL # # # 4 100.00 # 1 PRIMARY t1 ALL NULL # # # 3 100.00 # 1 PRIMARY t2i ref it2i1,it2i2,it2i3 # # # 2 100.00 # -2 SUBQUERY t2 ALL NULL # # # 5 100.00 # -4 SUBQUERY t3 ALL NULL # # # 4 100.00 # -3 SUBQUERY t3 ALL NULL # # # 4 100.00 # +2 MATERIALIZED t2 ALL NULL # # # 5 100.00 # +4 MATERIALIZED t3 ALL NULL # # # 4 100.00 # +3 MATERIALIZED t3 ALL NULL # # # 4 100.00 # 7 UNION t2i index it2i1,it2i2,it2i3 # # # 5 40.00 # 7 UNION t1i ref it1i1,it1i2,it1i3 # # # 1 100.00 # 7 UNION t3i ref it3i1,it3i2,it3i3 # # # 1 100.00 # @@ -434,8 +434,8 @@ 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 t1 ALL NULL NULL NULL NULL 3 100.00 Using where 1 PRIMARY <subquery4> eq_ref distinct_key distinct_key 18 func,func 1 100.00 -4 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where -4 SUBQUERY t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join) +4 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where +4 MATERIALIZED t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join) 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00 Using where 3 DEPENDENT UNION t2 ALL NULL NULL NULL NULL 5 100.00 Using where NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL @@ -458,8 +458,8 @@ 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 Using where 1 PRIMARY t3 ALL NULL NULL NULL NULL 4 100.00 Using where; Using join buffer (flat, BNL join) 1 PRIMARY <subquery4> eq_ref distinct_key distinct_key 18 func,func 1 100.00 -4 SUBQUERY t3 ALL NULL NULL NULL NULL 4 100.00 Using where -4 SUBQUERY t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join) +4 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where +4 MATERIALIZED t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join) 2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00 Using where 3 DEPENDENT UNION t2 ALL NULL NULL NULL NULL 5 100.00 Using where NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL @@ -505,7 +505,7 @@ id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join) 1 PRIMARY t2i ref it2i1,it2i2,it2i3 it2i3 18 test.t1.a1,test.t1.a2 2 100.00 Using index; Start temporary 1 PRIMARY t3c ALL NULL NULL NULL NULL 4 100.00 Using where; End temporary; Using join buffer (flat, BNL join) -4 SUBQUERY t3b ALL NULL NULL NULL NULL 4 100.00 Using where +4 MATERIALIZED t3b ALL NULL NULL NULL NULL 4 100.00 Using where 3 DEPENDENT SUBQUERY t3a ALL NULL NULL NULL NULL 4 100.00 Using where Warnings: Note 1276 Field or reference 'test.t1.a1' of SELECT #3 was resolved in SELECT #1 @@ -643,7 +643,7 @@ where a1 in (select substring(b1,1,16) from t2_16 where b1 > '0'); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 20 func 1 100.00 Using where -2 SUBQUERY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where +2 MATERIALIZED t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where Warnings: Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` semi join (`test`.`t2_16`) where ((`test`.`t2_16`.`b1` > '0') and (`test`.`t1_16`.`a1` = substr(`test`.`t2_16`.`b1`,1,16))) select left(a1,7), left(a2,7) @@ -673,7 +673,7 @@ where a1 in (select group_concat(b1) from t2_16 group by b2); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_16.a1 1 100.00 Using where -2 SUBQUERY t2_16 ALL NULL NULL NULL NULL 3 100.00 Using filesort +2 MATERIALIZED t2_16 ALL NULL NULL NULL NULL 3 100.00 Using filesort Warnings: Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_16`.`b1` separator ',') from `test`.`t2_16` group by `test`.`t2_16`.`b2`) join `test`.`t1_16` where (`test`.`t1_16`.`a1` = `<subquery2>`.`group_concat(b1)`) select left(a1,7), left(a2,7) @@ -758,7 +758,7 @@ where a1 in (select substring(b1,1,512) from t2_512 where b1 > '0'); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 517 func 1 100.00 Using where -2 SUBQUERY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using where +2 MATERIALIZED t2_512 ALL NULL NULL NULL NULL 3 100.00 Using where Warnings: Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` semi join (`test`.`t2_512`) where ((`test`.`t2_512`.`b1` > '0') and (`test`.`t1_512`.`a1` = substr(`test`.`t2_512`.`b1`,1,512))) select left(a1,7), left(a2,7) @@ -773,7 +773,7 @@ where a1 in (select group_concat(b1) from t2_512 group by b2); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_512.a1 1 100.00 Using where -2 SUBQUERY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort +2 MATERIALIZED t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort Warnings: Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_512`.`b1` separator ',') from `test`.`t2_512` group by `test`.`t2_512`.`b2`) join `test`.`t1_512` where (`test`.`t1_512`.`a1` = `<subquery2>`.`group_concat(b1)`) select left(a1,7), left(a2,7) @@ -787,7 +787,7 @@ where a1 in (select group_concat(b1) from t2_512 group by b2); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_512.a1 1 100.00 Using where -2 SUBQUERY t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort +2 MATERIALIZED t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort Warnings: Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_512`.`b1` separator ',') from `test`.`t2_512` group by `test`.`t2_512`.`b2`) join `test`.`t1_512` where (`test`.`t1_512`.`a1` = `<subquery2>`.`group_concat(b1)`) select left(a1,7), left(a2,7) @@ -868,7 +868,7 @@ where a1 in (select group_concat(b1) from t2_1024 group by b2); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_1024.a1 1 100.00 Using where -2 SUBQUERY t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort +2 MATERIALIZED t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort Warnings: Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_1024`.`b1` separator ',') from `test`.`t2_1024` group by `test`.`t2_1024`.`b2`) join `test`.`t1_1024` where (`test`.`t1_1024`.`a1` = `<subquery2>`.`group_concat(b1)`) select left(a1,7), left(a2,7) @@ -882,7 +882,7 @@ where a1 in (select group_concat(b1) from t2_1024 group by b2); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_1024.a1 1 100.00 Using where -2 SUBQUERY t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort +2 MATERIALIZED t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort Warnings: Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_1024`.`b1` separator ',') from `test`.`t2_1024` group by `test`.`t2_1024`.`b2`) join `test`.`t1_1024` where (`test`.`t1_1024`.`a1` = `<subquery2>`.`group_concat(b1)`) select left(a1,7), left(a2,7) @@ -963,7 +963,7 @@ where a1 in (select group_concat(b1) from t2_1025 group by b2); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_1025.a1 1 100.00 Using where -2 SUBQUERY t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort +2 MATERIALIZED t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort Warnings: Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_1025`.`b1` separator ',') from `test`.`t2_1025` group by `test`.`t2_1025`.`b2`) join `test`.`t1_1025` where (`test`.`t1_1025`.`a1` = `<subquery2>`.`group_concat(b1)`) select left(a1,7), left(a2,7) @@ -977,7 +977,7 @@ where a1 in (select group_concat(b1) from t2_1025 group by b2); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_1025.a1 1 100.00 Using where -2 SUBQUERY t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort +2 MATERIALIZED t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort Warnings: Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_1025`.`b1` separator ',') from `test`.`t2_1025` group by `test`.`t2_1025`.`b2`) join `test`.`t1_1025` where (`test`.`t1_1025`.`a1` = `<subquery2>`.`group_concat(b1)`) select left(a1,7), left(a2,7) @@ -999,7 +999,7 @@ where (a1, a2) in (select b1, b2 from t2bit); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1bit ALL NULL NULL NULL NULL 3 100.00 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 10 func,func 1 100.00 -2 SUBQUERY t2bit ALL NULL NULL NULL NULL 3 100.00 +2 MATERIALIZED t2bit ALL NULL NULL NULL NULL 3 100.00 Warnings: Note 1003 select conv(`test`.`t1bit`.`a1`,10,2) AS `bin(a1)`,conv(`test`.`t1bit`.`a2`,10,2) AS `bin(a2)` from `test`.`t1bit` semi join (`test`.`t2bit`) where 1 select bin(a1), bin(a2) @@ -1071,7 +1071,7 @@ select a from t1 where a in (select c from t2 where d >= 20); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 6 100.00 1 PRIMARY t1 ALL NULL NULL NULL NULL 7 100.00 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 100.00 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and (`test`.`t2`.`d` >= 20)) select a from t1 where a in (select c from t2 where d >= 20); @@ -1086,7 +1086,7 @@ select a from t1 where a in (select c from t2 where d >= 20); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 6 100.00 1 PRIMARY t1 ref it1a it1a 4 test.t2.c 2 100.00 Using index -2 SUBQUERY t2 ALL NULL NULL NULL NULL 6 100.00 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t1`.`a` = `test`.`t2`.`c`) and (`test`.`t2`.`d` >= 20)) select a from t1 where a in (select c from t2 where d >= 20); @@ -1101,7 +1101,7 @@ select a from t1 where a in (select c from t2 where d >= 20); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 index it1a it1a 4 NULL 7 100.00 Using index 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1 100.00 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 7 100.00 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 7 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`d` >= 20)) select a from t1 where a in (select c from t2 where d >= 20); @@ -1114,7 +1114,7 @@ explain extended select a from t1 group by a having a in (select c from t2 where d >= 20); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 index NULL it1a 4 NULL 7 100.00 Using index -2 SUBQUERY t2 ALL NULL NULL NULL NULL 7 100.00 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 7 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`)))))) select a from t1 group by a having a in (select c from t2 where d >= 20); @@ -1126,7 +1126,7 @@ explain extended select a from t1 group by a having a in (select c from t2 where d >= 20); id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 index NULL it1a 4 NULL 7 100.00 Using index -2 SUBQUERY t2 ALL NULL NULL NULL NULL 7 100.00 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 7 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`a` AS `a` from `test`.`t1` group by `test`.`t1`.`a` having <expr_cache><`test`.`t1`.`a`>(<in_optimizer>(`test`.`t1`.`a`,`test`.`t1`.`a` in ( <materialize> (select `test`.`t2`.`c` from `test`.`t2` where (`test`.`t2`.`d` >= 20) ), <primary_index_lookup>(`test`.`t1`.`a` in <temporary table> on distinct_key where ((`test`.`t1`.`a` = `<subquery2>`.`c`)))))) select a from t1 group by a having a in (select c from t2 where d >= 20); @@ -1185,7 +1185,7 @@ explain select min(a1) from t1 where 7 in (select b1 from t2 group by b1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 system NULL NULL NULL NULL 1 1 PRIMARY <subquery2> const distinct_key distinct_key 5 const 1 -2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table +2 MATERIALIZED NULL NULL NULL NULL NULL NULL NULL no matching row in const table select min(a1) from t1 where 7 in (select b1 from t2 group by b1); min(a1) NULL @@ -1234,7 +1234,7 @@ explain select a,b from t1 where b in (select a from t1); 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 3 func 1 Using where -2 SUBQUERY t1 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 select a,b from t1 where b in (select a from t1); a b prepare st1 from "select a,b from t1 where b in (select a from t1)"; @@ -1273,7 +1273,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 5 const 1 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join) 1 PRIMARY t4 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join) -3 SUBQUERY t3 ALL NULL NULL NULL NULL 2 Using temporary +3 MATERIALIZED t3 ALL NULL NULL NULL NULL 2 Using temporary DROP TABLE t1,t2,t3,t4; CREATE TABLE t1 ( pk INTEGER AUTO_INCREMENT, @@ -1380,7 +1380,7 @@ SELECT t1.* FROM t1 LEFT JOIN t2 ON t1.a > 3 OR t2.b IN (SELECT a FROM t1) id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 2 DERIVED NULL NULL NULL NULL NULL NULL NULL no matching row in const table -3 SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table +3 MATERIALIZED NULL NULL NULL NULL NULL NULL NULL no matching row in const table SELECT a FROM ( SELECT t1.* FROM t1 LEFT JOIN t2 ON t1.a > 3 OR t2.b IN (SELECT a FROM t1) ) table1; @@ -1410,7 +1410,7 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 system NULL NULL NULL NULL 1 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 const 1 1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY t1 system NULL NULL NULL NULL 1 +2 MATERIALIZED t1 system NULL NULL NULL NULL 1 SELECT * FROM t1 JOIN t2 USING (f1) WHERE t1.f1 IN (SELECT t1.pk FROM t1 ORDER BY t1.f1); f1 pk pk @@ -1484,7 +1484,7 @@ EXPLAIN SELECT COUNT(*) FROM t1 WHERE (f1,f2) IN (SELECT f1,f2 FROM t2); 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 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 SELECT COUNT(*) FROM t1 WHERE (f1,f2) IN (SELECT f1,f2 FROM t2); COUNT(*) 2 @@ -1508,7 +1508,7 @@ 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 5 func 1 -2 SUBQUERY t2 range PRIMARY PRIMARY 4 NULL 2 Using index condition; Rowid-ordered scan +2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 2 Using index condition; Rowid-ordered scan SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0); pk 2 @@ -1549,7 +1549,7 @@ insert into t1 values (0),(1),(2); explain select a, a in (select a from t1) from t0; id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t0 ALL NULL NULL NULL NULL 3 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 3 +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 3 select a, a in (select a from t1) from t0; a a in (select a from t1) 0 1 diff --git a/mysql-test/r/subselect_sj_nonmerged.result b/mysql-test/r/subselect_sj_nonmerged.result index 192c0812236..fe1f9c35626 100644 --- a/mysql-test/r/subselect_sj_nonmerged.result +++ b/mysql-test/r/subselect_sj_nonmerged.result @@ -10,7 +10,7 @@ explain select * from t0 where a in (select max(a) from t1); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 1 1 PRIMARY t0 ALL NULL NULL NULL NULL 10 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY t1 ALL NULL NULL NULL NULL 10 +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 10 select * from t0 where a in (select max(a) from t1); a 9 @@ -42,23 +42,23 @@ explain select * from t3 where 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 Using where 1 PRIMARY t3 eq_ref PRIMARY PRIMARY 8 <subquery2>.max(t2.a) 1 Using where; Using index -2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 Using temporary -2 SUBQUERY t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) +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) # 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 <subquery2> ALL distinct_key NULL NULL NULL 50 Using where 1 PRIMARY t3 eq_ref PRIMARY PRIMARY 8 <subquery2>.max(t2.a) 1 Using where; Using index -2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 Using temporary -2 SUBQUERY t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) +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) # Outer joins also work: 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 <subquery2> ALL distinct_key NULL NULL NULL 50 Using where 1 PRIMARY t3 eq_ref PRIMARY PRIMARY 8 <subquery2>.max(t2.a) 1 Using where; Using index -2 SUBQUERY t1 ALL NULL NULL NULL NULL 10 Using temporary -2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 Using where +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 10 Using temporary +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 Using where create table t4 (a int, b int, filler char(20), unique key(a,b)); 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 @@ -67,8 +67,8 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t0 ALL NULL NULL NULL NULL 10 1 PRIMARY t4 ALL a NULL NULL NULL 100 Using where; Using join buffer (flat, BNL join) 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 test.t4.a 1 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 Using temporary -2 SUBQUERY t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) +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) insert into t4 select 100 + (B.a *100 + A.a), 100 + (B.a*100 + A.a), 'filler' from t4 A, t0 B; explain select * from t4 where t4.a in (select max(t2.a) from t1, t2 group by t2.b) and @@ -77,10 +77,10 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 5 Using where 1 PRIMARY <subquery3> ALL distinct_key NULL NULL NULL 5 Using where; Using join buffer (flat, BNL join) 1 PRIMARY t4 ref a a 10 <subquery2>.max(t2.a),<subquery3>.max(t2.a) 12 -3 SUBQUERY t2 ALL NULL NULL NULL NULL 5 Using temporary -3 SUBQUERY t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) -2 SUBQUERY t2 ALL NULL NULL NULL NULL 5 Using temporary -2 SUBQUERY t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) +3 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 Using temporary +3 MATERIALIZED t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join) +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) drop table t1,t2,t3,t4; drop table t0; # @@ -114,6 +114,6 @@ id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 1 Using where 1 PRIMARY X ref a a 5 <subquery2>.max(a) 1 Using index 1 PRIMARY Y ALL NULL NULL NULL NULL 10 Using where; Using join buffer (flat, BNL join) -2 SUBQUERY t0 ALL NULL NULL NULL NULL 10 +2 MATERIALIZED t0 ALL NULL NULL NULL NULL 10 drop table t0, t1; set optimizer_switch=@save_optimizer_switch; diff --git a/mysql-test/suite/pbxt/r/subselect.result b/mysql-test/suite/pbxt/r/subselect.result index 0b5bfc579cf..a4777ad107b 100644 --- a/mysql-test/suite/pbxt/r/subselect.result +++ b/mysql-test/suite/pbxt/r/subselect.result @@ -2839,7 +2839,7 @@ explain extended SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FR id select_type table type possible_keys key key_len ref rows filtered Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 10 func,func 1 100.00 -2 SUBQUERY t2 ALL NULL NULL NULL NULL 9 100.00 Using where +2 MATERIALIZED t2 ALL NULL NULL NULL NULL 9 100.00 Using where Warnings: Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`flag` = 'N')) explain extended SELECT one,two,ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = '0' group by one,two) as 'test' from t1; @@ -3432,7 +3432,7 @@ SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL NULL NULL NULL NULL 9 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 23 test.t1.a,test.t1.b 1 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 9 Using temporary +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 9 Using temporary ALTER TABLE t1 ADD INDEX(a); SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); a b @@ -3444,7 +3444,7 @@ SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 ALL a NULL NULL NULL 9 Using where 1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 23 test.t1.a,test.t1.b 1 -2 SUBQUERY t1 ALL NULL NULL NULL NULL 9 Using temporary +2 MATERIALIZED t1 ALL NULL NULL NULL NULL 9 Using temporary DROP TABLE t1; create table t1( f1 int,f2 int); insert into t1 values (1,1),(2,2); diff --git a/sql/sql_lex.cc b/sql/sql_lex.cc index 117a866555c..2e2bec06c06 100644 --- a/sql/sql_lex.cc +++ b/sql/sql_lex.cc @@ -3527,20 +3527,58 @@ void st_select_lex::set_explain_type() SELECT_LEX *first= master_unit()->first_select(); /* drop UNCACHEABLE_EXPLAIN, because it is for internal usage only */ uint8 is_uncacheable= (uncacheable & ~UNCACHEABLE_EXPLAIN); + + bool using_materialization= FALSE; + Item_subselect *parent_item; + if ((parent_item= master_unit()->item) && + parent_item->substype() == Item_subselect::IN_SUBS) + { + Item_in_subselect *in_subs= (Item_in_subselect*)parent_item; + /* + Surprisingly, in_subs->is_set_strategy() can return FALSE here, + even for the last invocation of this function for the select. + */ + if (in_subs->test_strategy(SUBS_MATERIALIZATION)) + using_materialization= TRUE; + } - type= ((&master_unit()->thd->lex->select_lex == this) ? - (is_primary ? "PRIMARY" : "SIMPLE"): - ((this == first) ? - ((linkage == DERIVED_TABLE_TYPE) ? - "DERIVED" : - ((is_uncacheable & UNCACHEABLE_DEPENDENT) ? - "DEPENDENT SUBQUERY" : - (is_uncacheable ? "UNCACHEABLE SUBQUERY" : - "SUBQUERY"))) : - ((is_uncacheable & UNCACHEABLE_DEPENDENT) ? - "DEPENDENT UNION": - is_uncacheable ? "UNCACHEABLE UNION": - "UNION"))); + if (&master_unit()->thd->lex->select_lex == this) + { + type= is_primary ? "PRIMARY" : "SIMPLE"; + } + else + { + if (this == first) + { + /* If we're a direct child of a UNION, we're the first sibling there */ + if (linkage == DERIVED_TABLE_TYPE) + type= "DERIVED"; + else if (using_materialization) + type= "MATERIALIZED"; + else + { + if (is_uncacheable & UNCACHEABLE_DEPENDENT) + type= "DEPENDENT SUBQUERY"; + else + { + type= is_uncacheable? "UNCACHEABLE SUBQUERY" : + "SUBQUERY"; + } + } + } + else + { + /* This a non-first sibling in UNION */ + if (is_uncacheable & UNCACHEABLE_DEPENDENT) + type= "DEPENDENT UNION"; + else if (using_materialization) + type= "MATERIALIZED UNION"; + else + { + type= is_uncacheable ? "UNCACHEABLE UNION": "UNION"; + } + } + } options|= SELECT_DESCRIBE; } diff --git a/sql/sql_select.cc b/sql/sql_select.cc index 7c36f7c4d8c..4ff660286d6 100644 --- a/sql/sql_select.cc +++ b/sql/sql_select.cc @@ -20642,7 +20642,7 @@ static void select_describe(JOIN *join, bool need_tmp_table, bool need_order, /* id */ item_list.push_back(new Item_uint((uint32)select_id)); /* select_type */ - const char* stype= printing_materialize_nest? "SUBQUERY" : + const char* stype= printing_materialize_nest? "MATERIALIZED" : join->select_lex->type; item_list.push_back(new Item_string(stype, strlen(stype), cs)); |