#
# MDEV-3992 Server crash or valgrind errors in test_if_skip_sort_order/test_if_cheaper_ordering
# on GROUP BY with indexes on InnoDB table
#
CREATE TABLE t1 (
pk INT PRIMARY KEY,
a VARCHAR(1) NOT NULL,
KEY (pk)
) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1,'a'),(2,'b');
EXPLAIN
SELECT COUNT(*), pk field1, pk AS field2
FROM t1 WHERE a = 'r' OR pk = 183 
GROUP BY field1, field2;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	index	PRIMARY,pk	pk	4	NULL	2	Using where
SELECT COUNT(*), pk field1, pk AS field2
FROM t1 WHERE a = 'r' OR pk = 183 
GROUP BY field1, field2;
COUNT(*)	field1	field2
EXPLAIN
SELECT COUNT(*), pk field1 FROM t1
WHERE a = 'r' OR pk = 183 GROUP BY field1, field1;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	index	PRIMARY,pk	pk	4	NULL	2	Using where
SELECT COUNT(*), pk field1 FROM t1
WHERE a = 'r' OR pk = 183 GROUP BY field1, field1;
COUNT(*)	field1
drop table t1;
End of 5.5 tests