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Test case for LP BUG#715062. 

There is no patch because the bug cannot be reproduced any more.
pull/374/head
unknown 15 years ago
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2 changed files with 185 additions and 0 deletions
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  1. 121
      mysql-test/r/subselect4.result
  2. 64
      mysql-test/t/subselect4.test

121
mysql-test/r/subselect4.result
View File

@ -1454,3 +1454,124 @@ WHERE SQ2_t2.f3 AND alias1.f1)
ORDER BY f3 ;
f2
drop table t1,t2;
#
# LP BUG#715062: Wrong result with VIEW + UNION + subquery in maria-5.3-mwl89
#
create table t1 (f1 int);
create table t2 (f2 int);
create table t3 (f3 int);
insert into t1 values (2);
insert into t2 values (2);
insert into t3 values (7);
CREATE VIEW v1 AS SELECT 2 UNION SELECT 2 ;
CREATE VIEW v2 AS SELECT * from t1 UNION SELECT * from t2 ;
set @save_optimizer_switch=@@optimizer_switch;
SET @@optimizer_switch = 'in_to_exists=off,semijoin=off,materialization=on';
EXPLAIN
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN ( SELECT * FROM v1 );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
3 DERIVED NULL NULL NULL NULL NULL NULL NULL No tables used
4 UNION NULL NULL NULL NULL NULL NULL NULL No tables used
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN ( SELECT * FROM v1 );
bug
EXPLAIN
SELECT ( 5 ) IN ( SELECT * FROM v1 );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
3 DERIVED NULL NULL NULL NULL NULL NULL NULL No tables used
4 UNION NULL NULL NULL NULL NULL NULL NULL No tables used
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
SELECT ( 5 ) IN ( SELECT * FROM v1 );
( 5 ) IN ( SELECT * FROM v1 )
0
EXPLAIN
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN (SELECT * FROM v2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
3 DERIVED t1 system NULL NULL NULL NULL 1
4 UNION t2 system NULL NULL NULL NULL 1
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN (SELECT * FROM v2);
bug
EXPLAIN
SELECT 'bug' FROM t3 WHERE ( 5 ) IN (SELECT * FROM v2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 system NULL NULL NULL NULL 1
2 SUBQUERY <derived3> system NULL NULL NULL NULL 1
3 DERIVED t1 system NULL NULL NULL NULL 1
4 UNION t2 system NULL NULL NULL NULL 1
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
SELECT 'bug' FROM t3 WHERE ( 5 ) IN (SELECT * FROM v2);
bug
EXPLAIN
SELECT ( 5 ) IN ( SELECT * FROM v2 );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
3 DERIVED t1 system NULL NULL NULL NULL 1
4 UNION t2 system NULL NULL NULL NULL 1
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
SELECT ( 5 ) IN ( SELECT * FROM v2 );
( 5 ) IN ( SELECT * FROM v2 )
0
SET @@optimizer_switch = 'in_to_exists=on,semijoin=off,materialization=off';
EXPLAIN
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN ( SELECT * FROM v1 );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
3 DERIVED NULL NULL NULL NULL NULL NULL NULL No tables used
4 UNION NULL NULL NULL NULL NULL NULL NULL No tables used
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN ( SELECT * FROM v1 );
bug
EXPLAIN
SELECT ( 5 ) IN ( SELECT * FROM v1 );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
3 DERIVED NULL NULL NULL NULL NULL NULL NULL No tables used
4 UNION NULL NULL NULL NULL NULL NULL NULL No tables used
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
SELECT ( 5 ) IN ( SELECT * FROM v1 );
( 5 ) IN ( SELECT * FROM v1 )
0
EXPLAIN
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN (SELECT * FROM v2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
3 DERIVED t1 system NULL NULL NULL NULL 1
4 UNION t2 system NULL NULL NULL NULL 1
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN (SELECT * FROM v2);
bug
EXPLAIN
SELECT 'bug' FROM t3 WHERE ( 5 ) IN (SELECT * FROM v2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 system NULL NULL NULL NULL 1
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
3 DERIVED t1 system NULL NULL NULL NULL 1
4 UNION t2 system NULL NULL NULL NULL 1
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
SELECT 'bug' FROM t3 WHERE ( 5 ) IN (SELECT * FROM v2);
bug
EXPLAIN
SELECT ( 5 ) IN ( SELECT * FROM v2 );
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
2 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
3 DERIVED t1 system NULL NULL NULL NULL 1
4 UNION t2 system NULL NULL NULL NULL 1
NULL UNION RESULT <union3,4> ALL NULL NULL NULL NULL NULL
SELECT ( 5 ) IN ( SELECT * FROM v2 );
( 5 ) IN ( SELECT * FROM v2 )
0
set @@optimizer_switch=@save_optimizer_switch;
drop table t1,t2,t3;
drop view v1,v2;

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

@ -1200,3 +1200,67 @@ WHERE (SELECT SQ2_t2.f1
ORDER BY f3 ;
drop table t1,t2;
--echo #
--echo # LP BUG#715062: Wrong result with VIEW + UNION + subquery in maria-5.3-mwl89
--echo #
create table t1 (f1 int);
create table t2 (f2 int);
create table t3 (f3 int);
insert into t1 values (2);
insert into t2 values (2);
insert into t3 values (7);
CREATE VIEW v1 AS SELECT 2 UNION SELECT 2 ;
CREATE VIEW v2 AS SELECT * from t1 UNION SELECT * from t2 ;
set @save_optimizer_switch=@@optimizer_switch;
SET @@optimizer_switch = 'in_to_exists=off,semijoin=off,materialization=on';
EXPLAIN
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN ( SELECT * FROM v1 );
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN ( SELECT * FROM v1 );
EXPLAIN
SELECT ( 5 ) IN ( SELECT * FROM v1 );
SELECT ( 5 ) IN ( SELECT * FROM v1 );
EXPLAIN
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN (SELECT * FROM v2);
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN (SELECT * FROM v2);
EXPLAIN
SELECT 'bug' FROM t3 WHERE ( 5 ) IN (SELECT * FROM v2);
SELECT 'bug' FROM t3 WHERE ( 5 ) IN (SELECT * FROM v2);
EXPLAIN
SELECT ( 5 ) IN ( SELECT * FROM v2 );
SELECT ( 5 ) IN ( SELECT * FROM v2 );
SET @@optimizer_switch = 'in_to_exists=on,semijoin=off,materialization=off';
EXPLAIN
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN ( SELECT * FROM v1 );
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN ( SELECT * FROM v1 );
EXPLAIN
SELECT ( 5 ) IN ( SELECT * FROM v1 );
SELECT ( 5 ) IN ( SELECT * FROM v1 );
EXPLAIN
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN (SELECT * FROM v2);
SELECT 'bug' FROM DUAL WHERE ( 5 ) IN (SELECT * FROM v2);
EXPLAIN
SELECT 'bug' FROM t3 WHERE ( 5 ) IN (SELECT * FROM v2);
SELECT 'bug' FROM t3 WHERE ( 5 ) IN (SELECT * FROM v2);
EXPLAIN
SELECT ( 5 ) IN ( SELECT * FROM v2 );
SELECT ( 5 ) IN ( SELECT * FROM v2 );
set @@optimizer_switch=@save_optimizer_switch;
drop table t1,t2,t3;
drop view v1,v2;
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