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-rw-r--r--mysql-test/t/type_date.test7
1 files changed, 7 insertions, 0 deletions
diff --git a/mysql-test/t/type_date.test b/mysql-test/t/type_date.test
index 899f912a5a5..a3fe1eaf73c 100644
--- a/mysql-test/t/type_date.test
+++ b/mysql-test/t/type_date.test
@@ -26,6 +26,13 @@ INSERT INTO t2 VALUES ('1998-01-02','note02');
select name,t1.cdate,note from t1,t2 where t1.cdate=t2.cdate and t1.cdate='1998-01-01';
drop table t1,t2;
+# MariaDB lp:993103. WHERE LAST_DAY(zero_date) IS NULL does not evaluate to TRUE.
+
+CREATE TABLE t1(a INT);
+INSERT INTO t1 VALUES(1);
+SELECT * FROM t1 WHERE LAST_DAY('0000-00-00 00:00:00') IS NULL;
+DROP TABLE t1;
+
#
# Date and BETWEEN
#