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Diffstat (limited to 'mysql-test/r/subselect.result')
| -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 ee057695cd1..377870696e1 100644 --- a/mysql-test/r/subselect.result +++ b/mysql-test/r/subselect.result @@ -3033,6 +3033,19 @@ 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; create table t1 (df decimal(5,1)); insert into t1 values(1.1); insert into t1 values(2.2); |