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Sergey Petrunya 2012-03-12 18:08:40 +04:00
commit 50ff30d892
31 changed files with 664 additions and 38 deletions
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40
mysql-test/t/subselect_sj_mat.test
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@ -1602,6 +1602,46 @@ SET optimizer_switch=@save_optimizer_switch;
DROP TABLE t1,t2;
--echo #
--echo # BUG#946055: Crash with semijoin IN subquery when hash join is used
--echo #
CREATE TABLE t1 (a int);
INSERT INTO t1 VALUES (7);
CREATE TABLE t2 (b int, c int, d varchar(1), e varchar(1), KEY (c), KEY (d, c));
INSERT INTO t2 VALUES
(4,2,'v','v'), (6,1,'v','v'), (0,5,'x','x'), (7,1,'x','x'),
(7,3,'i','i'), (7,1,'e','e'), (1,4,'p','p'), (1,2,'j','j');
SET @save_optimizer_switch=@@optimizer_switch;
SET @save_join_cache_level=@@join_cache_level;
SET join_cache_level=2;
EXPLAIN
SELECT a, c FROM t1, t2
WHERE (a, c) IN (SELECT s1.b, s1.c FROM t2 AS s1, t2 AS s2
WHERE s2.d = s1.e AND s1.e = (SELECT MAX(e) FROM t2));
SELECT a, c FROM t1, t2
WHERE (a, c) IN (SELECT s1.b, s1.c FROM t2 AS s1, t2 AS s2
WHERE s2.d = s1.e AND s1.e = (SELECT MAX(e) FROM t2));
SET optimizer_switch='join_cache_hashed=on';
SET join_cache_level=4;
EXPLAIN
SELECT a, c FROM t1, t2
WHERE (a, c) IN (SELECT s1.b, s1.c FROM t2 AS s1, t2 AS s2
WHERE s2.d = s1.e AND s1.e = (SELECT MAX(e) FROM t2));
SELECT a, c FROM t1, t2
WHERE (a, c) IN (SELECT s1.b, s1.c FROM t2 AS s1, t2 AS s2
WHERE s2.d = s1.e AND s1.e = (SELECT MAX(e) FROM t2));
SET optimizer_switch=@save_optimizer_switch;
SET join_cache_level=@save_join_cache_level;
DROP TABLE t1,t2;
--echo #
--echo # BUG#952297: Server crashes on 2nd execution of PS in Field::is_null with semijoin+materialization
--echo #