From 34b6f51dab7a2710b1bba816dde486a9c9c6c9c2 Mon Sep 17 00:00:00 2001 From: Sergey Petrunya Date: Fri, 7 Feb 2014 20:51:31 +0400 Subject: MDEV-5582: Plugin 'MEMORY' has ref_count=1 after shutdown with materialization+semijoin - Let cleanup_empty_jtbm_semi_joins() walk into semi-join nests. --- mysql-test/t/subselect_sj2.test | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'mysql-test/t/subselect_sj2.test') diff --git a/mysql-test/t/subselect_sj2.test b/mysql-test/t/subselect_sj2.test index 91db113d35a..bf7e0d4d3af 100644 --- a/mysql-test/t/subselect_sj2.test +++ b/mysql-test/t/subselect_sj2.test @@ -1249,5 +1249,24 @@ SELECT * FROM t1 WHERE ( 1, 1 ) IN ( DROP TABLE t1,t2,t3; +--echo # +--echo # MDEV-5582: Plugin 'MEMORY' has ref_count=1 after shutdown with materialization+semijoin +--echo # +CREATE TABLE t1 (a INT) engine=innodb; +INSERT INTO t1 VALUES (8),(9); + +CREATE TABLE t2 (b INT) engine=innodb; +INSERT INTO t2 VALUES (2),(3); + +CREATE TABLE t3 (c INT, INDEX(c)) engine=innodb; +INSERT INTO t2 VALUES (4),(5); + +explain +SELECT * FROM t1 WHERE 9 IN ( SELECT b FROM t2 WHERE 1 IN ( SELECT MIN(c) FROM t3 ) ); +SELECT * FROM t1 WHERE 9 IN ( SELECT b FROM t2 WHERE 1 IN ( SELECT MIN(c) FROM t3 ) ); + +DROP TABLE t1,t2,t3; + + --echo # This must be the last in the file: set optimizer_switch=@subselect_sj2_tmp; -- cgit v1.2.1