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| author | unknown <timour@askmonty.org> | 2011-11-09 15:36:25 +0200 |
|---|---|---|
| committer | unknown <timour@askmonty.org> | 2011-11-09 15:36:25 +0200 |
| commit | 511459bd143262a9f154048d3bd87d8cb5239e52 (patch) | |
| tree | e5891f132ba37a5ae011652c05a193f64d81ba5b /mysql-test/r/subselect4.result | |
| parent | 250bc599bf584ea057edd3de0a4cb0420bc92951 (diff) | |
| download | mariadb-git-511459bd143262a9f154048d3bd87d8cb5239e52.tar.gz | |
Enable subquery materialization=ON by default.
Diffstat (limited to 'mysql-test/r/subselect4.result')
| -rw-r--r-- | mysql-test/r/subselect4.result | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/mysql-test/r/subselect4.result b/mysql-test/r/subselect4.result index ddf339ba1b5..d3e0d0a8bc9 100644 --- a/mysql-test/r/subselect4.result +++ b/mysql-test/r/subselect4.result @@ -117,6 +117,8 @@ CREATE TABLE t4 ( a INT ); INSERT INTO t4 VALUES (1), (2), (3); CREATE TABLE t5 ( a INT ); INSERT INTO t5 VALUES (NULL), (2); +SET @old_optimizer_switch = @@session.optimizer_switch; +SET SESSION optimizer_switch = 'materialization=off,in_to_exists=on,semijoin=off'; 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 @@ -188,6 +190,7 @@ SELECT * FROM t1 WHERE NULL NOT IN ( SELECT c FROM t2 WHERE c = 1 AND c <> 1 ); a b 1 NULL 2 NULL +SET SESSION optimizer_switch = @old_optimizer_switch; DROP TABLE t1, t2, t3, t4, t5; # # Bug#58207: invalid memory reads when using default column value and @@ -1242,17 +1245,19 @@ EXPLAIN SELECT * FROM (t2 LEFT JOIN t1 ON t1.c1) LEFT JOIN t3 on t3.c1 WHERE 's' IN (SELECT c1 FROM t2); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY t1 system NULL NULL NULL NULL 0 const row not found -1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Start temporary; End temporary +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 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 SELECT * FROM t4 LEFT JOIN t2 ON t4.c1 WHERE 's' IN (SELECT c1 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; Start temporary; End temporary +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 SELECT * FROM t4 LEFT JOIN t2 ON t4.c1 WHERE 's' IN (SELECT c1 FROM t2); c1 c1 drop table t1, t2, t3, t4; |