1 files changed, 44 insertions, 2 deletions
diff --git a/mysql-test/t/func_time.test b/mysql-test/t/func_time.test
index 6bea1aab392..a3f488a8d1e 100644
--- a/mysql-test/t/func_time.test
+++ b/mysql-test/t/func_time.test
@@ -1243,13 +1243,47 @@ CREATE TABLE t1 AS SELECT
 SHOW COLUMNS FROM t1;
 DROP TABLE t1;
 
+CREATE TABLE t1 (a DATE) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('2005-05-04'),('2000-02-23');
+SELECT * FROM t1 GROUP BY FROM_UNIXTIME(concat(a,'10'))*1;
+SELECT * FROM t1 GROUP BY (-FROM_UNIXTIME(concat(a,'10')))*1;
+SELECT * FROM t1 GROUP BY (-FROM_UNIXTIME(concat(a,'10')));
+SELECT * FROM t1 GROUP BY ABS(FROM_UNIXTIME(concat(a,'10')));
+SELECT * FROM t1 GROUP BY @a:=(FROM_UNIXTIME(concat(a,'10'))*1);
+
+DROP TABLE t1;
+
+SET TIME_ZONE='+02:00';
+
+--echo #
+--echo # MDEV-6302 Wrong result set when using GROUP BY FROM_UNIXTIME(...)+0
+--echo #
+CREATE TABLE t1 (a DATE);
+INSERT INTO t1 VALUES ('2005-05-04'),('2000-02-23');
+SELECT a, FROM_UNIXTIME(CONCAT(a,'10')) AS f1, FROM_UNIXTIME(CONCAT(a,'10'))+0 AS f2 FROM t1;
+SELECT * FROM t1 GROUP BY FROM_UNIXTIME(CONCAT(a,'10'))+0;
+DROP TABLE t1;
+
+CREATE TABLE t1 (a DATE) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('2005-05-04'),('2000-02-23');
+SELECT * FROM t1 GROUP BY FROM_UNIXTIME(concat(a,'10'))/1;
+DROP TABLE t1;
+
+CREATE TABLE t1 (a DATE);
+INSERT INTO t1 VALUES ('2005-05-04');
+SELECT CONCAT(FROM_UNIXTIME(CONCAT(a,'10')) MOD FROM_UNIXTIME(CONCAT(a,'10'))) AS f2 FROM t1; 
+SELECT CHAR_LENGTH(CONCAT(FROM_UNIXTIME(CONCAT(a,'10')) MOD FROM_UNIXTIME(CONCAT(a,'10')))) AS f2 FROM t1; 
+CREATE TABLE t2 AS SELECT CONCAT(FROM_UNIXTIME(CONCAT(a,'10')) MOD FROM_UNIXTIME(CONCAT(a,'10'))) AS f2 FROM t1;
+SHOW CREATE TABLE t2;
+SELECT * FROM t2;
+DROP TABLE t1,t2;
+
 --echo #
 --echo # MDEV-4635 Crash in UNIX_TIMESTAMP(STR_TO_DATE('2020','%Y'))
 --echo #
-SET TIME_ZONE='+02:00';
 SELECT UNIX_TIMESTAMP(STR_TO_DATE('2020','%Y'));
-SET TIME_ZONE=DEFAULT;
 
+SET TIME_ZONE=DEFAULT;
 
 --echo #
 --echo #  MDEV-4863 COALESCE(time_or_datetime) returns wrong results in numeric context
@@ -1589,3 +1623,11 @@ SELECT IFNULL(TIME'10:20:30',DATE'2001-01-01');
 SELECT CASE WHEN 1 THEN TIME'10:20:30' ELSE DATE'2001-01-01' END;
 SELECT COALESCE(TIME'10:20:30',DATE'2001-01-01');
 SET timestamp=DEFAULT;
+
+--echo #
+--echo # MDEV-5750 Assertion `ltime->year == 0' fails on a query with EXTRACT DAY_MINUTE and TIME column
+--echo #
+CREATE TABLE t1 ( d DATE, t TIME );
+INSERT INTO t1 VALUES ('2008-12-05','22:34:09'),('2005-03-27','14:26:02');
+SELECT EXTRACT(DAY_MINUTE FROM GREATEST(t,d)), GREATEST(t,d) FROM t1;
+DROP TABLE t1;