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Kirill Smelkov
mariadb
Commits
0ab24bef
Commit
0ab24bef
authored
Sep 08, 2009
by
Georgi Kodinov
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0a7e4186
629557ff
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+64
-6
mysql-test/r/subselect4.result
mysql-test/r/subselect4.result
+30
-0
mysql-test/t/subselect4.test
mysql-test/t/subselect4.test
+32
-0
sql/sql_select.cc
sql/sql_select.cc
+2
-6
No files found.
mysql-test/r/subselect4.result
0 → 100644
View file @
0ab24bef
#
# Bug #46791: Assertion failed:(table->key_read==0),function unknown
# function,file sql_base.cc
#
CREATE TABLE t1 (a INT, b INT, KEY(a));
INSERT INTO t1 VALUES (1,1),(2,2);
CREATE TABLE t2 LIKE t1;
INSERT INTO t2 VALUES (1,1),(2,2);
CREATE TABLE t3 LIKE t1;
# should have 1 impossible where and 2 dependent subqueries
EXPLAIN
SELECT 1 FROM t1
WHERE NOT EXISTS (SELECT 1 FROM t2 WHERE 1 = (SELECT MIN(t2.b) FROM t3))
ORDER BY count(*);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 index NULL a 5 NULL 2 Using index; Using temporary
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where
3 DEPENDENT SUBQUERY NULL NULL NULL NULL NULL NULL NULL no matching row in const table
# should not crash the next statement
SELECT 1 FROM t1
WHERE NOT EXISTS (SELECT 1 FROM t2 WHERE 1 = (SELECT MIN(t2.b) FROM t3))
ORDER BY count(*);
1
1
# should not crash: the crash is caused by the previous statement
SELECT 1;
1
1
DROP TABLE t1,t2,t3;
End of 5.0 tests.
mysql-test/t/subselect4.test
0 → 100644
View file @
0ab24bef
# General purpose bug fix tests go here : subselect.test too large
--
echo
#
--
echo
# Bug #46791: Assertion failed:(table->key_read==0),function unknown
--
echo
# function,file sql_base.cc
--
echo
#
CREATE
TABLE
t1
(
a
INT
,
b
INT
,
KEY
(
a
));
INSERT
INTO
t1
VALUES
(
1
,
1
),(
2
,
2
);
CREATE
TABLE
t2
LIKE
t1
;
INSERT
INTO
t2
VALUES
(
1
,
1
),(
2
,
2
);
CREATE
TABLE
t3
LIKE
t1
;
--
echo
# should have 1 impossible where and 2 dependent subqueries
EXPLAIN
SELECT
1
FROM
t1
WHERE
NOT
EXISTS
(
SELECT
1
FROM
t2
WHERE
1
=
(
SELECT
MIN
(
t2
.
b
)
FROM
t3
))
ORDER
BY
count
(
*
);
--
echo
# should not crash the next statement
SELECT
1
FROM
t1
WHERE
NOT
EXISTS
(
SELECT
1
FROM
t2
WHERE
1
=
(
SELECT
MIN
(
t2
.
b
)
FROM
t3
))
ORDER
BY
count
(
*
);
--
echo
# should not crash: the crash is caused by the previous statement
SELECT
1
;
DROP
TABLE
t1
,
t2
,
t3
;
--
echo
End
of
5.0
tests
.
sql/sql_select.cc
View file @
0ab24bef
...
...
@@ -1523,12 +1523,8 @@ JOIN::optimize()
}
}
/*
If this join belongs to an uncacheable subquery save
the original join
*/
if
(
select_lex
->
uncacheable
&&
!
is_top_level_join
()
&&
init_save_join_tab
())
/* If this join belongs to an uncacheable query save the original join */
if
(
select_lex
->
uncacheable
&&
init_save_join_tab
())
DBUG_RETURN
(
-
1
);
/* purecov: inspected */
}
...
...
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