#
# ORDER BY handling (e.g. filesort) tests that require innodb
#
-- source include/have_innodb.inc

--disable_warnings
drop table if exists t0,t1,t2,t3;
--enable_warnings

--echo #
--echo # MDEV-6434: Wrong result (extra rows) with ORDER BY, multiple-column index, InnoDB
--echo #

CREATE TABLE t1 (a INT, b INT, c INT, d TEXT, KEY idx(a,b,c)) ENGINE=InnoDB;

INSERT INTO t1 (a,c) VALUES
(8, 9),(8, 10),(13, 15),(16, 17),(16, 18),(16, 19),(20, 21),
(20, 22),(20, 24),(20, 25),(20, 26),(20, 27),(20, 28);

SELECT  * FROM t1 WHERE a = 8 AND (b = 1 OR b IS NULL) ORDER BY c;

DROP TABLE t1;

