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Merge the fix for lp:944706, mdev-193

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2012-06-06 22:26:40 +03:00
parent 8efc63ba5d 7ddd5418d0
commit c2677de7ac
48 changed files with 1613 additions and 433 deletions
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13
mysql-test/t/partition.test
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@ -2463,3 +2463,16 @@ INSERT INTO t1 VALUES (6,8,10);
SELECT 1 FROM t1 JOIN t1 AS t2 USING (a);
drop table t1;
--echo #
--echo # LP BUG#1001117 Crash on a simple select that uses a temptable view
--echo # MySQL Bug #12330344 Crash and/or valgrind errors in free_io_cache with join, view,
--echo # partitioned table
--echo #
CREATE TABLE t1(a INT PRIMARY KEY) PARTITION BY LINEAR KEY (a);
CREATE ALGORITHM=TEMPTABLE VIEW vtmp AS
SELECT 1 FROM t1 AS t1_0 JOIN t1 ON t1_0.a LIKE (SELECT 1 FROM t1);
SELECT * FROM vtmp;
DROP VIEW vtmp;
DROP TABLE t1;

112
mysql-test/t/subselect.test
View File

@ -304,6 +304,7 @@ SELECT (SELECT numeropost FROM t1 HAVING numreponse=a),numreponse FROM (SELECT *
SELECT numreponse, (SELECT numeropost FROM t1 HAVING numreponse=a) FROM (SELECT * FROM t1) as a;
SELECT numreponse, (SELECT numeropost FROM t1 HAVING numreponse=1) FROM (SELECT * FROM t1) as a;
INSERT INTO t1 (numeropost,numreponse,pseudo) VALUES (1,1,'joce'),(1,2,'joce'),(1,3,'test');
-- error ER_SUBQUERY_NO_1_ROW
EXPLAIN EXTENDED SELECT numreponse FROM t1 WHERE numeropost='1' AND numreponse=(SELECT 1 FROM t1 WHERE numeropost='1');
-- error ER_SUBQUERY_NO_1_ROW
SELECT numreponse FROM t1 WHERE numeropost='1' AND numreponse=(SELECT 1 FROM t1 WHERE numeropost='1');
@ -5556,5 +5557,116 @@ SELECT SUM(a) AS f1, a AS f2 FROM (t1, t2) HAVING f2 >= ALL (SELECT 4 UNION SELE
drop table t1,t2;
--echo #
--echo # LP BUG#944706 Query with impossible or constant subquery in WHERE or HAVING is not
--echo # precomputed and thus not part of optimization
--echo #
CREATE TABLE t1 ( a VARCHAR(16), KEY (a) );
INSERT INTO t1 VALUES ('Abilene'),('Akron'),('Albany'),('Albuquerque'),('Alexandria'),('Allentown'),
('Amarillo'),('Anaheim'),('Anchorage'),('Ann Arbor'),('Arden-Arcade');
EXPLAIN
SELECT MAX( alias2.a ) AS field
FROM t1 AS alias1, t1 AS alias2, t1 AS alias3
WHERE alias1.a = alias2.a OR alias1.a = 'y'
HAVING field>'B' AND ( 'Moscow' ) IN ( SELECT a FROM t1 );
SELECT MAX( alias2.a ) AS field
FROM t1 AS alias1, t1 AS alias2, t1 AS alias3
WHERE alias1.a = alias2.a OR alias1.a = 'y'
HAVING field>'B' AND ( 'Moscow' ) IN ( SELECT a FROM t1 );
EXPLAIN
SELECT MAX( alias2.a )
FROM t1 AS alias1, t1 AS alias2, t1 AS alias3
WHERE alias1.a = alias2.a OR ('Moscow') IN ( SELECT a FROM t1 );
SELECT MAX( alias2.a )
FROM t1 AS alias1, t1 AS alias2, t1 AS alias3
WHERE alias1.a = alias2.a OR ('Moscow') IN ( SELECT a FROM t1 );
drop table t1;
--echo #
--echo # MDEV-277 CHEAP SQ: Server crashes in st_join_table::get_examined_rows
--echo # with semijoin+materialization, IN and = subqueries
--echo #
CREATE TABLE t1 (a1 INT);
INSERT INTO t1 VALUES (4),(6);
CREATE TABLE t2 (b1 INT);
INSERT INTO t2 VALUES (1),(7);
EXPLAIN
SELECT * FROM t1
WHERE a1 = (SELECT COUNT(*) FROM t1 WHERE a1 IN (SELECT a1 FROM t1, t2));
SELECT * FROM t1
WHERE a1 = (SELECT COUNT(*) FROM t1 WHERE a1 IN (SELECT a1 FROM t1, t2));
drop table t1, t2;
--echo #
--echo # MDEV-287 CHEAP SQ: A query with subquery in SELECT list, EXISTS,
--echo # inner joins takes hundreds times longer
--echo #
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (1),(7);
CREATE TABLE t2 (b INT);
INSERT INTO t2 VALUES (4),(5);
CREATE TABLE t3 (c INT);
INSERT INTO t3 VALUES (8),(3);
set @@expensive_subquery_limit= 0;
EXPLAIN
SELECT (SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
FROM t2 alias1, t1 alias2, t1 alias3;
flush status;
SELECT (SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
FROM t2 alias1, t1 alias2, t1 alias3;
show status like "subquery_cache%";
show status like '%Handler_read%';
set @@expensive_subquery_limit= default;
EXPLAIN
SELECT (SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
FROM t2 alias1, t1 alias2, t1 alias3;
flush status;
SELECT (SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
FROM t2 alias1, t1 alias2, t1 alias3;
show status like "subquery_cache%";
show status like '%Handler_read%';
drop table t1, t2, t3;
--echo #
--echo # MDEV-288 CHEAP SQ: Valgrind warnings "Memory lost" with IN and EXISTS nested subquery, materialization+semijoin
--echo #
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (0),(8);
CREATE TABLE t2 (b INT PRIMARY KEY);
INSERT INTO t2 VALUES (1),(2);
EXPLAIN
SELECT * FROM t1 WHERE 4 IN (SELECT MAX(b) FROM t2 WHERE EXISTS (SELECT * FROM t1));
SELECT * FROM t1 WHERE 4 IN (SELECT MAX(b) FROM t2 WHERE EXISTS (SELECT * FROM t1));
drop table t1,t2;
--echo # return optimizer switch changed in the beginning of this test
set optimizer_switch=@subselect_tmp;

8
mysql-test/t/subselect4.test
View File

@ -977,6 +977,14 @@ SELECT * FROM t1 WHERE
FROM t3 AS SQ1_t1 JOIN t3 AS SQ1_t3 ON SQ1_t3.f4
GROUP BY SQ1_t1.f4));
--error ER_SUBQUERY_NO_1_ROW
SELECT * FROM t1 WHERE
(SELECT f2 FROM t2
WHERE f4 <= ALL
(SELECT max(SQ1_t1.f4)
FROM t3 AS SQ1_t1 JOIN t3 AS SQ1_t3 ON SQ1_t3.f4
GROUP BY SQ1_t1.f4));
drop table t1, t2, t3;
--echo #