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Test case for bug lp:611690

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The bug itself has been fixed by MWL#89.
This commit is contained in:
unknown 2011-07-07 17:07:13 +03:00
parent 4128ec4852
commit 5f5cbf7684
2 changed files with 132 additions and 0 deletions
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68
mysql-test/r/subselect4.result
View file

@ -1815,4 +1815,72 @@ SELECT DISTINCT f4
FROM t1));
f2 f1
drop table t1, t2, t3, t4;
#
# LP BUG#611690 Crash in select_describe() with nested subqueries
#
CREATE TABLE t1 (
col_int_key int(11) DEFAULT NULL,
col_varchar_key varchar(1) DEFAULT NULL,
col_varchar_nokey varchar(1) DEFAULT NULL,
KEY col_int_key (col_int_key),
KEY col_varchar_key (col_varchar_key,col_int_key)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
INSERT INTO t1 VALUES (8,'v','v');
INSERT INTO t1 VALUES (9,'r','r');
CREATE TABLE t2 (
col_int_key int(11) DEFAULT NULL,
col_varchar_key varchar(1) DEFAULT NULL,
col_varchar_nokey varchar(1) DEFAULT NULL,
KEY col_int_key (col_int_key),
KEY col_varchar_key (col_varchar_key,col_int_key)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
INSERT INTO t2 VALUES (2,'w','w');
INSERT INTO t2 VALUES (9,'m','m');
set @old_optimizer_switch = @@optimizer_switch;
set @@optimizer_switch='subquery_cache=off,materialization=on,in_to_exists=off,semijoin=off';
EXPLAIN
SELECT col_int_key
FROM t2
WHERE (SELECT SUBQUERY2_t1.col_int_key
FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2
ON SUBQUERY2_t2.col_varchar_key
WHERE SUBQUERY2_t2.col_varchar_nokey IN
(SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 index NULL col_int_key 5 NULL 2 Using index
2 SUBQUERY SUBQUERY2_t1 index NULL col_int_key 5 NULL 2 Using index
2 SUBQUERY SUBQUERY2_t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
3 SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary
SELECT col_int_key
FROM t2
WHERE (SELECT SUBQUERY2_t1.col_int_key
FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2
ON SUBQUERY2_t2.col_varchar_key
WHERE SUBQUERY2_t2.col_varchar_nokey IN
(SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey));
col_int_key
set @@optimizer_switch='subquery_cache=off,materialization=off,in_to_exists=on,semijoin=off';
EXPLAIN
SELECT col_int_key
FROM t2
WHERE (SELECT SUBQUERY2_t1.col_int_key
FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2
ON SUBQUERY2_t2.col_varchar_key
WHERE SUBQUERY2_t2.col_varchar_nokey IN
(SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 index NULL col_int_key 5 NULL 2 Using index
2 SUBQUERY SUBQUERY2_t1 index NULL col_int_key 5 NULL 2 Using index
2 SUBQUERY SUBQUERY2_t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
3 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using temporary
SELECT col_int_key
FROM t2
WHERE (SELECT SUBQUERY2_t1.col_int_key
FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2
ON SUBQUERY2_t2.col_varchar_key
WHERE SUBQUERY2_t2.col_varchar_nokey IN
(SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey));
col_int_key
drop table t1, t2;
set @@optimizer_switch = @old_optimizer_switch;
set optimizer_switch=@subselect4_tmp;

64
mysql-test/t/subselect4.test
View file

@ -1494,4 +1494,68 @@ WHERE t3.f1 = (
drop table t1, t2, t3, t4;
--echo #
--echo # LP BUG#611690 Crash in select_describe() with nested subqueries
--echo #
CREATE TABLE t1 (
col_int_key int(11) DEFAULT NULL,
col_varchar_key varchar(1) DEFAULT NULL,
col_varchar_nokey varchar(1) DEFAULT NULL,
KEY col_int_key (col_int_key),
KEY col_varchar_key (col_varchar_key,col_int_key)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
INSERT INTO t1 VALUES (8,'v','v');
INSERT INTO t1 VALUES (9,'r','r');
CREATE TABLE t2 (
col_int_key int(11) DEFAULT NULL,
col_varchar_key varchar(1) DEFAULT NULL,
col_varchar_nokey varchar(1) DEFAULT NULL,
KEY col_int_key (col_int_key),
KEY col_varchar_key (col_varchar_key,col_int_key)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
INSERT INTO t2 VALUES (2,'w','w');
INSERT INTO t2 VALUES (9,'m','m');
set @old_optimizer_switch = @@optimizer_switch;
set @@optimizer_switch='subquery_cache=off,materialization=on,in_to_exists=off,semijoin=off';
EXPLAIN
SELECT col_int_key
FROM t2
WHERE (SELECT SUBQUERY2_t1.col_int_key
FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2
ON SUBQUERY2_t2.col_varchar_key
WHERE SUBQUERY2_t2.col_varchar_nokey IN
(SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey));
SELECT col_int_key
FROM t2
WHERE (SELECT SUBQUERY2_t1.col_int_key
FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2
ON SUBQUERY2_t2.col_varchar_key
WHERE SUBQUERY2_t2.col_varchar_nokey IN
(SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey));
set @@optimizer_switch='subquery_cache=off,materialization=off,in_to_exists=on,semijoin=off';
EXPLAIN
SELECT col_int_key
FROM t2
WHERE (SELECT SUBQUERY2_t1.col_int_key
FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2
ON SUBQUERY2_t2.col_varchar_key
WHERE SUBQUERY2_t2.col_varchar_nokey IN
(SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey));
SELECT col_int_key
FROM t2
WHERE (SELECT SUBQUERY2_t1.col_int_key
FROM t1 SUBQUERY2_t1 STRAIGHT_JOIN t1 SUBQUERY2_t2
ON SUBQUERY2_t2.col_varchar_key
WHERE SUBQUERY2_t2.col_varchar_nokey IN
(SELECT col_varchar_nokey FROM t1 GROUP BY col_varchar_nokey));
drop table t1, t2;
set @@optimizer_switch = @old_optimizer_switch;
set optimizer_switch=@subselect4_tmp;