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authorSergey Petrunya <psergey@askmonty.org>2013-08-23 16:32:56 +0400
committerSergey Petrunya <psergey@askmonty.org>2013-08-23 16:32:56 +0400
commit970542ec90951c3e9d68ff310cdf181465854aaa (patch)
tree8cad06c470ae4b87ffe339ca58f4f7e28a7714a9 /mysql-test/r/join_outer_jcl6.result
parentf5ea23b6e2bedb4bdaed7f53325cfce35acc8a3e (diff)
downloadmariadb-git-970542ec90951c3e9d68ff310cdf181465854aaa.tar.gz
MDEV-4836: Wrong result on <not null date column> IS NULL (old documented hack stopped working)
- When applying optimization introduced by MDEV-4817, ignore the conditions that have form "datetime_not_null_col IS NULL".
Diffstat (limited to 'mysql-test/r/join_outer_jcl6.result')
-rw-r--r--mysql-test/r/join_outer_jcl6.result12
1 files changed, 12 insertions, 0 deletions
diff --git a/mysql-test/r/join_outer_jcl6.result b/mysql-test/r/join_outer_jcl6.result
index 82805a883b3..874ca16c39c 100644
--- a/mysql-test/r/join_outer_jcl6.result
+++ b/mysql-test/r/join_outer_jcl6.result
@@ -2149,6 +2149,18 @@ id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t0 ALL NULL NULL NULL NULL 10 Using where
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t0.a 1 Using index
drop table t0, t1;
+#
+# MDEV-4836: Wrong result on <not null date column> IS NULL (old documented hack stopped working)
+# (this is a regression after fix for MDEV-4817)
+#
+CREATE TABLE t1 (id INT, d DATE NOT NULL);
+INSERT INTO t1 VALUES (1,'0000-00-00'),(2,'0000-00-00');
+CREATE TABLE t2 (i INT);
+SELECT * FROM t1 LEFT JOIN t2 ON (id=i) WHERE NULL OR d IS NULL;
+id d i
+1 0000-00-00 NULL
+2 0000-00-00 NULL
+DROP TABLE t1,t2;
SET optimizer_switch=@save_optimizer_switch;
set join_cache_level=default;
show variables like 'join_cache_level';