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Diffstat (limited to 'mysql-test/t/group_by.test')
| -rw-r--r-- | mysql-test/t/group_by.test | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/mysql-test/t/group_by.test b/mysql-test/t/group_by.test index 59983594c32..c0447b06303 100644 --- a/mysql-test/t/group_by.test +++ b/mysql-test/t/group_by.test @@ -465,3 +465,12 @@ select group_concat( distinct col1 ) as alias from t1 drop table t1; + +#Test for BUG#6976: Aggregate functions have incorrect NULL-ness +create table t1 (a int); +insert into t1 values(null); +select min(a) is null from t1; +select min(a) is null or null from t1; +select 1 and min(a) is null from t1; +drop table t1; + |