diff options
Diffstat (limited to 'mysql-test/r')
| -rw-r--r-- | mysql-test/r/subselect.result | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/mysql-test/r/subselect.result b/mysql-test/r/subselect.result index 89315342f5e..a4ea8e21d61 100644 --- a/mysql-test/r/subselect.result +++ b/mysql-test/r/subselect.result @@ -3013,3 +3013,16 @@ t3 CREATE TABLE `t3` ( `a` datetime default NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 DROP TABLE t1,t2,t3; +CREATE TABLE t1 (a int); +INSERT INTO t1 VALUES (1), (2); +SELECT a FROM t1 WHERE (SELECT 1 FROM DUAL WHERE 1=0) > 0; +a +SELECT a FROM t1 WHERE (SELECT 1 FROM DUAL WHERE 1=0) IS NULL; +a +1 +2 +EXPLAIN SELECT a FROM t1 WHERE (SELECT 1 FROM DUAL WHERE 1=0) IS NULL; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t1 ALL NULL NULL NULL NULL 2 +2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE +DROP TABLE t1; |