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Diffstat (limited to 'mysql-test/main/subselect_sj.test')
| -rw-r--r-- | mysql-test/main/subselect_sj.test | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/mysql-test/main/subselect_sj.test b/mysql-test/main/subselect_sj.test index 37cb54af786..1ca10cf4090 100644 --- a/mysql-test/main/subselect_sj.test +++ b/mysql-test/main/subselect_sj.test @@ -2940,6 +2940,32 @@ insert into t1 select 'xxx' from dual where 'xxx' in (select a2 from t2); drop table t1,t2; + +--echo # +--echo # MDEV-13172: Wrong result / SELECT ... WHERE EXISTS ... (with UNIQUE Key) +--echo # + +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); +explain extended +SELECT Id FROM t1 WHERE Id in (SELECT t1_Id FROM t2 WHERE t2.col1 IS NULL); + +DROP TABLE t1, t2; + --echo # End of 5.5 test --echo # |