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Test for bug lp:612543

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The bug itself has been fixed by MWL#89.
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unknown
2011-07-07 17:22:28 +03:00
parent 5f5cbf7684
commit 0f36ab3a52
2 changed files with 93 additions and 0 deletions
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57
mysql-test/r/subselect4.result
View File

@ -1883,4 +1883,61 @@ WHERE SUBQUERY2_t2.col_varchar_nokey IN
col_int_key
drop table t1, t2;
set @@optimizer_switch = @old_optimizer_switch;
#
# LP BUG#612543 Crash in Item_field::used_tables() with view + subquery + prepared statements
#
CREATE TABLE t1 ( f1 int(11), f2 varchar(1));
CREATE TABLE t2 ( f3 varchar(1));
insert into t1 values (2,'x'), (5,'y');
insert into t2 values ('x'), ('z');
CREATE VIEW v2 AS SELECT * FROM t2;
set @old_optimizer_switch = @@optimizer_switch;
set @@optimizer_switch='materialization=on,in_to_exists=off,semijoin=off,subquery_cache=off';
EXPLAIN SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2
PREPARE st1 FROM "SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 )";
EXECUTE st1;
f1 f2 f3
2 x x
5 y x
EXECUTE st1;
f1 f2 f3
2 x x
5 y x
set @@optimizer_switch='materialization=off,in_to_exists=on,semijoin=off,subquery_cache=off';
EXPLAIN SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 2 Using where
PREPARE st2 FROM "SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 )";
EXECUTE st2;
f1 f2 f3
2 x x
5 y x
EXECUTE st2;
f1 f2 f3
2 x x
5 y x
set @@optimizer_switch='materialization=on,in_to_exists=on,semijoin=off,subquery_cache=off';
EXPLAIN SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2
PREPARE st3 FROM "SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 )";
EXECUTE st3;
f1 f2 f3
2 x x
5 y x
EXECUTE st3;
f1 f2 f3
2 x x
5 y x
set @@optimizer_switch = @old_optimizer_switch;
drop table t1, t2;
drop view v2;
set optimizer_switch=@subselect4_tmp;

36
mysql-test/t/subselect4.test
View File

@ -1558,4 +1558,40 @@ drop table t1, t2;
set @@optimizer_switch = @old_optimizer_switch;
--echo #
--echo # LP BUG#612543 Crash in Item_field::used_tables() with view + subquery + prepared statements
--echo #
CREATE TABLE t1 ( f1 int(11), f2 varchar(1));
CREATE TABLE t2 ( f3 varchar(1));
insert into t1 values (2,'x'), (5,'y');
insert into t2 values ('x'), ('z');
CREATE VIEW v2 AS SELECT * FROM t2;
set @old_optimizer_switch = @@optimizer_switch;
set @@optimizer_switch='materialization=on,in_to_exists=off,semijoin=off,subquery_cache=off';
EXPLAIN SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 );
PREPARE st1 FROM "SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 )";
EXECUTE st1;
EXECUTE st1;
set @@optimizer_switch='materialization=off,in_to_exists=on,semijoin=off,subquery_cache=off';
EXPLAIN SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 );
PREPARE st2 FROM "SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 )";
EXECUTE st2;
EXECUTE st2;
set @@optimizer_switch='materialization=on,in_to_exists=on,semijoin=off,subquery_cache=off';
EXPLAIN SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 );
PREPARE st3 FROM "SELECT * FROM t1 JOIN v2 ON t1.f2 > 'a' WHERE v2.f3 IN ( SELECT f2 FROM t1 )";
EXECUTE st3;
EXECUTE st3;
set @@optimizer_switch = @old_optimizer_switch;
drop table t1, t2;
drop view v2;
set optimizer_switch=@subselect4_tmp;