SET sql_mode=ORACLE;
#
# Start of 10.3 tests
#
#
# MDEV-16152 Expressions with INTERVAL return bad results in some cases
#
SELECT TIMESTAMP'2001-01-01 10:20:30' - INTERVAL '10' YEAR AS c1,
-INTERVAL '10' YEAR + TIMESTAMP'2001-01-01 10:20:30' AS c2;
c1	c2
1991-01-01 10:20:30	1991-01-01 10:20:30
SELECT TIMESTAMP'2001-01-01 10:20:30' + INTERVAL '10' YEAR AS c1,
INTERVAL '10' YEAR + TIMESTAMP'2001-01-01 10:20:30' AS c2,
+INTERVAL '10' YEAR + TIMESTAMP'2001-01-01 10:20:30' AS c3;
c1	c2	c3
2011-01-01 10:20:30	2011-01-01 10:20:30	2011-01-01 10:20:30
EXPLAIN EXTENDED SELECT
TIMESTAMP'2001-01-01 10:20:30' - INTERVAL '10' YEAR AS c1,
-INTERVAL '10' YEAR + TIMESTAMP'2001-01-01 10:20:30' AS c2;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
Warnings:
Note	1003	select TIMESTAMP'2001-01-01 10:20:30' - interval '10' year AS "c1",TIMESTAMP'2001-01-01 10:20:30' - interval '10' year AS "c2"
EXPLAIN EXTENDED SELECT
TIMESTAMP'2001-01-01 10:20:30' + INTERVAL '10' YEAR AS c1,
INTERVAL '10' YEAR + TIMESTAMP'2001-01-01 10:20:30' AS c2,
+INTERVAL '10' YEAR + TIMESTAMP'2001-01-01 10:20:30' AS c3;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
Warnings:
Note	1003	select TIMESTAMP'2001-01-01 10:20:30' + interval '10' year AS "c1",TIMESTAMP'2001-01-01 10:20:30' + interval '10' year AS "c2",TIMESTAMP'2001-01-01 10:20:30' + interval '10' year AS "c3"