diff options
Diffstat (limited to 'mysql-test/main/subselect_sj_jcl6.result')
| -rw-r--r-- | mysql-test/main/subselect_sj_jcl6.result | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/mysql-test/main/subselect_sj_jcl6.result b/mysql-test/main/subselect_sj_jcl6.result index 207fd80ac6d..6278b5a0cf5 100644 --- a/mysql-test/main/subselect_sj_jcl6.result +++ b/mysql-test/main/subselect_sj_jcl6.result @@ -3270,6 +3270,32 @@ create table t1 (a1 varchar(25)); create table t2 (a2 varchar(25)) ; insert into t1 select 'xxx' from dual where 'xxx' in (select a2 from t2); drop table t1,t2; +# +# MDEV-13172: Wrong result / SELECT ... WHERE EXISTS ... (with UNIQUE Key) +# +CREATE TABLE `t1` ( +`Id` int(11) NOT NULL, +PRIMARY KEY (`Id`) +); +INSERT INTO `t1` (`Id`) VALUES (1); +CREATE TABLE `t2` ( +`t1_Id` int(11) NOT NULL DEFAULT 0, +`col1` int(11) DEFAULT NULL, +UNIQUE KEY `col1` (`col1`) +); +INSERT INTO `t2` (`t1_Id`, `col1`) VALUES (1, NULL), (1, NULL); +SELECT Id FROM t1 WHERE Id in (SELECT t1_Id FROM t2 WHERE t2.col1 IS NULL); +Id +1 +explain extended +SELECT Id FROM t1 WHERE Id in (SELECT t1_Id FROM t2 WHERE t2.col1 IS NULL); +id select_type table type possible_keys key key_len ref rows filtered Extra +1 PRIMARY t1 system PRIMARY NULL NULL NULL 1 100.00 +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1 100.00 +2 MATERIALIZED t2 ref col1 col1 5 const 1 100.00 Using index condition; Using where +Warnings: +Note 1003 select 1 AS `Id` from (`test`.`t2`) where `test`.`t2`.`t1_Id` = 1 and `test`.`t2`.`col1` is null +DROP TABLE t1, t2; # End of 5.5 test # # MDEV-20109: Optimizer ignores distinct key created for materialized |