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Test case for LP BUG#641245

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The bug itself got fixed after merging with the main 5.3.
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unknown 2010-11-05 17:10:48 +02:00
parent bc7369b74b
commit acd46e32aa
2 changed files with 108 additions and 0 deletions
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55
mysql-test/r/subselect_mat_cost.result
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@ -3820,3 +3820,58 @@ WHERE (2, 6) IN (SELECT t1.c1, t1.c1 FROM t1 STRAIGHT_JOIN t2 ON t2.pk = t1.pk);
c2
set session optimizer_switch=@save_optimizer_switch;
drop table t1, t2, t3;
#
# LP BUG#641245 Crash in Item_equal::contains
#
CREATE TABLE t1 (
pk int(11) NOT NULL AUTO_INCREMENT,
c1 int(11) DEFAULT NULL,
c2 int(11) DEFAULT NULL,
c3 varchar(1) DEFAULT NULL,
c4 varchar(1) DEFAULT NULL,
PRIMARY KEY (pk),
KEY c2 (c2),
KEY c3 (c3,c2));
INSERT INTO t1 VALUES (10,7,8,'v','v');
INSERT INTO t1 VALUES (11,1,9,'r','r');
INSERT INTO t1 VALUES (12,5,9,'a','a');
create table t1a like t1;
insert into t1a select * from t1;
create table t1b like t1;
insert into t1b select * from t1;
CREATE TABLE t2 (
pk int(11) NOT NULL AUTO_INCREMENT,
c1 int(11) DEFAULT NULL,
c2 int(11) DEFAULT NULL,
c3 varchar(1) DEFAULT NULL,
c4 varchar(1) DEFAULT NULL,
PRIMARY KEY (pk),
KEY c2 (c2),
KEY c3 (c3,c2));
INSERT INTO t2 VALUES (1,NULL,2,'w','w');
INSERT INTO t2 VALUES (2,7,9,'m','m');
set @@optimizer_switch='materialization=off,in_to_exists=on,semijoin=off';
EXPLAIN EXTENDED SELECT pk
FROM t1
WHERE c1 IN
(SELECT t1a.c1
FROM (t1b JOIN t2 ON t2.c3 = t1b.c4) LEFT JOIN
t1a ON (t1a.c2 = t1b.pk AND 2)
WHERE t1.pk) ;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
2 DEPENDENT SUBQUERY t2 index c3 c3 9 NULL 2 100.00 Using index
2 DEPENDENT SUBQUERY t1b ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer
2 DEPENDENT SUBQUERY t1a ref c2 c2 5 test.t1b.pk 2 100.00 Using where
Warnings:
Note 1276 Field or reference 'test.t1.pk' of SELECT #2 was resolved in SELECT #1
Note 1003 select `test`.`t1`.`pk` AS `pk` from `test`.`t1` where <expr_cache><`test`.`t1`.`c1`,(`test`.`t1`.`pk` and (`test`.`t1b`.`c4` = `test`.`t2`.`c3`) and (<cache>(`test`.`t1`.`c1`) = `test`.`t1a`.`c1`))>(<in_optimizer>(`test`.`t1`.`c1`,<exists>(select `test`.`t1a`.`c1` from `test`.`t1b` join `test`.`t2` left join `test`.`t1a` on((2 and (`test`.`t1a`.`c2` = `test`.`t1b`.`pk`))) where (`test`.`t1`.`pk` and (`test`.`t1b`.`c4` = `test`.`t2`.`c3`) and (<cache>(`test`.`t1`.`c1`) = `test`.`t1a`.`c1`)))))
SELECT pk
FROM t1
WHERE c1 IN
(SELECT t1a.c1
FROM (t1b JOIN t2 ON t2.c3 = t1b.c4) LEFT JOIN
t1a ON (t1a.c2 = t1b.pk AND 2)
WHERE t1.pk) ;
pk
DROP TABLE t1, t1a, t1b, t2;

53
mysql-test/t/subselect_mat_cost.test
View File

@ -269,3 +269,56 @@ WHERE (2, 6) IN (SELECT t1.c1, t1.c1 FROM t1 STRAIGHT_JOIN t2 ON t2.pk = t1.pk);
set session optimizer_switch=@save_optimizer_switch;
drop table t1, t2, t3;
--echo #
--echo # LP BUG#641245 Crash in Item_equal::contains
--echo #
CREATE TABLE t1 (
pk int(11) NOT NULL AUTO_INCREMENT,
c1 int(11) DEFAULT NULL,
c2 int(11) DEFAULT NULL,
c3 varchar(1) DEFAULT NULL,
c4 varchar(1) DEFAULT NULL,
PRIMARY KEY (pk),
KEY c2 (c2),
KEY c3 (c3,c2));
INSERT INTO t1 VALUES (10,7,8,'v','v');
INSERT INTO t1 VALUES (11,1,9,'r','r');
INSERT INTO t1 VALUES (12,5,9,'a','a');
create table t1a like t1;
insert into t1a select * from t1;
create table t1b like t1;
insert into t1b select * from t1;
CREATE TABLE t2 (
pk int(11) NOT NULL AUTO_INCREMENT,
c1 int(11) DEFAULT NULL,
c2 int(11) DEFAULT NULL,
c3 varchar(1) DEFAULT NULL,
c4 varchar(1) DEFAULT NULL,
PRIMARY KEY (pk),
KEY c2 (c2),
KEY c3 (c3,c2));
INSERT INTO t2 VALUES (1,NULL,2,'w','w');
INSERT INTO t2 VALUES (2,7,9,'m','m');
set @@optimizer_switch='materialization=off,in_to_exists=on,semijoin=off';
let $query=
SELECT pk
FROM t1
WHERE c1 IN
(SELECT t1a.c1
FROM (t1b JOIN t2 ON t2.c3 = t1b.c4) LEFT JOIN
t1a ON (t1a.c2 = t1b.pk AND 2)
WHERE t1.pk) ;
eval EXPLAIN EXTENDED $query;
eval $query;
DROP TABLE t1, t1a, t1b, t2;