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Diffstat (limited to 'mysql-test/r/selectivity.result')
| -rw-r--r-- | mysql-test/r/selectivity.result | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/mysql-test/r/selectivity.result b/mysql-test/r/selectivity.result index 49298304ebd..01847006928 100644 --- a/mysql-test/r/selectivity.result +++ b/mysql-test/r/selectivity.result @@ -1512,3 +1512,24 @@ Note 1003 select `test`.`t2`.`col1` AS `col1` from `test`.`t2` where 0 drop table t1,t2; set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; set use_stat_tables=@save_use_stat_tables; +# +# Bug mdev-11364: IS NULL over not nullable datetime column +# in mergeable derived +# +set use_stat_tables='preferably'; +set optimizer_use_condition_selectivity=4; +set HISTOGRAM_SIZE = 255; +CREATE TABLE t1 (t TIME, d DATE NOT NULL); +INSERT INTO t1 VALUES ('10:00:00', '0000-00-00'),('11:00:00','0000-00-00'); +ANALYZE TABLE t1; +Table Op Msg_type Msg_text +test.t1 analyze status Engine-independent statistics collected +test.t1 analyze status OK +SELECT * FROM (SELECT t FROM t1 WHERE d IS NULL) sq; +t +10:00:00 +11:00:00 +DROP TABLE t1; +set histogram_size=@save_histogram_size; +set optimizer_use_condition_selectivity=@save_optimizer_use_condition_selectivity; +set use_stat_tables=@save_use_stat_tables; |