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Merge 5.3->5.5.

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This commit is contained in:
Igor Babaev 2012-03-01 14:22:22 -08:00
commit 8b469eb515
53 changed files with 1174 additions and 230 deletions
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4
mysql-test/r/derived_view.result
View File

@ -1468,14 +1468,14 @@ WHERE (t2.a ,t1.b) NOT IN (SELECT DISTINCT c,a FROM t3 t);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
2 DEPENDENT SUBQUERY t ref PRIMARY,c c 4 func 2 Using where; Using index
2 DEPENDENT SUBQUERY t eq_ref PRIMARY,c PRIMARY 4 func 1 Using where
EXPLAIN
SELECT * FROM t1 , t2
WHERE (t2.a ,t1.b) NOT IN (SELECT DISTINCT c,a FROM (SELECT * FROM t3) t);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
2 DEPENDENT SUBQUERY t3 ref PRIMARY,c c 4 func 2 Using where; Using index
2 DEPENDENT SUBQUERY t3 eq_ref PRIMARY,c PRIMARY 4 func 1 Using where
SELECT * FROM t1 , t2
WHERE (t2.a ,t1.b) NOT IN (SELECT DISTINCT c,a FROM (SELECT * FROM t3) t);
b a

2
mysql-test/r/func_group.result
View File

@ -1845,7 +1845,7 @@ NULL
EXPLAIN EXTENDED
SELECT MAX(a) FROM t1 WHERE (1,2) IN (SELECT a,b FROM t2 WHERE b<5) and a<10;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 10 func,func 1 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func,func 1 100.00
1 PRIMARY t1 range a a 4 NULL 4 100.00 Using where; Using index; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where
Warnings:

2
mysql-test/r/group_min_max.result
View File

@ -2407,7 +2407,7 @@ id select_type table type possible_keys key key_len ref rows Extra
EXPLAIN SELECT 1 FROM t1 AS t1_outer WHERE
a IN (SELECT max(b) FROM t1 GROUP BY a HAVING a < 2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 8 Using where
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 8
1 PRIMARY t1_outer ref a a 5 <subquery2>.max(b) 2 Using index
2 MATERIALIZED t1 range NULL a 5 NULL 8 Using index for group-by
EXPLAIN SELECT 1 FROM t1 AS t1_outer GROUP BY a HAVING

41
mysql-test/r/having.result
View File

@ -573,6 +573,17 @@ f1
DROP TABLE t1,t2;
End of 5.1 tests
#
# LP bug:938518 HAVING does not reject the result of aggregation
#
CREATE TABLE t1 (pk INT PRIMARY KEY, a INT);
INSERT INTO t1 VALUES (2,7), (4,7), (6,2), (17,0);
SELECT MIN(t.pk) FROM t1, t1 as t WHERE t1.pk = 1;
MIN(t.pk)
NULL
SELECT MIN(t.pk) FROM t1, t1 as t WHERE t1.pk = 1 HAVING MIN(t.pk) < 10;
MIN(t.pk)
drop table t1;
#
# LP bug #791761: MAX over an empty join + HAVING
#
CREATE TABLE t1 (a int, b int , KEY (b)) ;
@ -596,3 +607,33 @@ SELECT MAX(t1.b) AS f FROM t1 JOIN t2 ON t2.a != 0
WHERE (SELECT f3 FROM t3) <> 0 HAVING f <> 6 ;
f
DROP TABLE t1,t2,t3;
#
# LP bug:806955 HAVING not observed with aggregate +subquery
#
CREATE TABLE t1 (f3 int, f10 varchar(1), f11 int, KEY (f10) );
INSERT INTO t1 VALUES (NULL,'a',0),(8,'b',0);
CREATE TABLE t2 (f2 int);
INSERT INTO t2 VALUES (7);
CREATE TABLE t3 (f3 int);
INSERT INTO t3 VALUES (0),(8);
set @save_optimizer_switch=@@optimizer_switch;
set optimizer_switch='semijoin=off,materialization=off';
SELECT MIN( t1.f10 ) AS field1
FROM t1 , t2
WHERE t2.f2 IN ( SELECT f3 FROM t3 )
HAVING field1 < 's';
field1
explain extended
SELECT MIN( t1.f10 ) AS field1
FROM t1 , t2
WHERE t2.f2 IN ( SELECT f3 FROM t3 )
HAVING field1 < 's';
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t2 system NULL NULL NULL NULL 1 100.00
1 PRIMARY t1 index NULL f10 4 NULL 2 100.00 Using index
2 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 2 100.00 Using where
Warnings:
Note 1003 select min(`test`.`t1`.`f10`) AS `field1` from `test`.`t1` where <expr_cache><7>(<in_optimizer>(7,<exists>(select `test`.`t3`.`f3` from `test`.`t3` where (<cache>(7) = `test`.`t3`.`f3`)))) having (<cache>(`field1`) < 's')
set optimizer_switch=@save_optimizer_switch;
drop table t1,t2,t3;
End of 5.2 tests

49
mysql-test/r/join.result
View File

@ -1277,6 +1277,55 @@ Handler_read_rnd_next 1
DROP TABLE t1, t2;
End of 5.1 tests
#
# Bug #43368: STRAIGHT_JOIN DOESN'T WORK FOR NESTED JOINS
#
create table t1(c1 int primary key, c2 char(10)) engine=myisam;
create table t2(c1 int primary key, c2 char(10), ref_t1 int) engine=myisam;
create table t3(c1 int primary key, c2 char(10), ref_t1 int) engine=myisam;
create table t4(c1 int primary key, c2 char(10), ref_t1 int) engine=myisam;
insert into t1 values(1,'a');
insert into t2 values(1,'a', 1);
insert into t3 values(1,'a', 1);
insert into t3 values(2,'b',2);
insert into t4 values(1,'a', 1);
insert into t4 values(2,'a', 2);
insert into t4 values(3,'a', 3);
insert into t4 values(4,'a', 4);
insert into t1 values(2,'b');
insert into t1 values(3,'c');
EXPLAIN
SELECT *
FROM t4 JOIN
(t1 JOIN t3 ON t3.ref_t1=t1.c1 JOIN t2 ON t2.ref_t1=t1.c1)
ON t4.ref_t1=t1.c1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 system NULL NULL NULL NULL 1
1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1
1 SIMPLE t3 ALL NULL NULL NULL NULL 2 Using where
1 SIMPLE t4 ALL NULL NULL NULL NULL 4 Using where; Using join buffer (flat, BNL join)
EXPLAIN
SELECT STRAIGHT_JOIN *
FROM t4 JOIN
(t1 JOIN t3 ON t3.ref_t1=t1.c1 JOIN t2 ON t2.ref_t1=t1.c1)
ON t4.ref_t1=t1.c1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t4 ALL NULL NULL NULL NULL 4
1 SIMPLE t1 ALL PRIMARY NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t3 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (incremental, BNL join)
1 SIMPLE t2 ALL NULL NULL NULL NULL 1 Using where; Using join buffer (incremental, BNL join)
EXPLAIN
SELECT *
FROM t4 STRAIGHT_JOIN
(t1 JOIN t3 ON t3.ref_t1=t1.c1 JOIN t2 ON t2.ref_t1=t1.c1)
ON t4.ref_t1=t1.c1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t4 ALL NULL NULL NULL NULL 4 Using where
1 SIMPLE t2 ALL NULL NULL NULL NULL 1 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t4.ref_t1 1
1 SIMPLE t3 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
drop table t1,t2,t3,t4;
End of 5.2 tests
#
# BUG#724275: Crash in JOIN::optimize in maria-5.3
#
create table t1 (a int);

84
mysql-test/r/join_outer.result
View File

@ -1905,4 +1905,88 @@ b b a b
DEALLOCATE PREPARE stmt;
SET SESSION join_cache_level=default;
DROP TABLE t1,t2,t3;
#
# LP bug #943543: LEFT JOIN converted to JOIN with
# ORed IS NULL(primary key) in WHERE clause
#
CREATE TABLE t1 (
a int, b int NOT NULL, pk int NOT NULL,
PRIMARY KEY (pk), INDEX idx(b)
);
INSERT INTO t1 VALUES
(NULL,1,1), (6,2,2), (5,3,3), (NULL,4,4),
(1,9,6), (8,5,7), (NULL,8,8), (8,1,5);
CREATE TABLE t2 (pk int PRIMARY KEY);
INSERT INTO t2 VALUES (3), (8), (5);
EXPLAIN EXTENDED
SELECT t1.pk FROM t2 JOIN t1 ON t2.pk = t1.a
WHERE t1.b BETWEEN 5 AND 6 AND t1.pk IS NULL OR t1.pk = 5
ORDER BY t1.pk;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 100.00
1 SIMPLE t2 const PRIMARY PRIMARY 4 const 1 100.00 Using index
Warnings:
Note 1003 select 5 AS `pk` from `test`.`t2` join `test`.`t1` where (1) order by 5
SELECT t1.pk FROM t2 JOIN t1 ON t2.pk = t1.a
WHERE t1.b BETWEEN 5 AND 6 AND t1.pk IS NULL OR t1.pk = 5
ORDER BY t1.pk;
pk
5
EXPLAIN EXTENDED
SELECT t1.pk FROM t2 LEFT JOIN t1 ON t2.pk = t1.a
WHERE t1.b BETWEEN 5 AND 6 AND t1.pk IS NULL OR t1.pk = 5
ORDER BY t1.pk;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 const PRIMARY,idx PRIMARY 4 const 1 100.00
1 SIMPLE t2 const PRIMARY PRIMARY 4 const 1 100.00 Using index
Warnings:
Note 1003 select 5 AS `pk` from `test`.`t2` join `test`.`t1` where ((((1 between 5 and 6) and isnull(5)) or 1)) order by 5
SELECT t1.pk FROM t2 LEFT JOIN t1 ON t2.pk = t1.a
WHERE t1.b BETWEEN 5 AND 6 AND t1.pk IS NULL OR t1.pk = 5
ORDER BY t1.pk;
pk
5
DROP TABLE t2;
CREATE TABLE t2 (c int, d int, KEY (c));
INSERT INTO t2 VALUES
(3,30), (8,88), (5,50), (8,81),
(4,40), (9,90), (7,70), (9,90),
(13,130), (18,188), (15,150), (18,181),
(14,140), (19,190), (17,170), (19,190);
INSERT INTO t1 VALUES (8,5,9);
EXPLAIN EXTENDED
SELECT t1.b, t2.c, t2.d FROM t2 JOIN t1 ON t2.c = t1.a
WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
ORDER BY t1.b;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ref idx idx 4 const 2 100.00 Using where
1 SIMPLE t2 ref c c 5 test.t1.a 2 100.00
Warnings:
Note 1003 select `test`.`t1`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2` join `test`.`t1` where ((`test`.`t2`.`c` = `test`.`t1`.`a`) and (`test`.`t1`.`b` = 5)) order by `test`.`t1`.`b`
SELECT t1.b, t2.c, t2.d FROM t2 JOIN t1 ON t2.c = t1.a
WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
ORDER BY t1.b;
b c d
5 8 88
5 8 81
5 8 88
5 8 81
EXPLAIN EXTENDED
SELECT t1.b, t2.c, t2.d FROM t2 LEFT JOIN t1 ON t2.c = t1.a
WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
ORDER BY t1.b;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ref PRIMARY,idx idx 4 const 2 100.00 Using where; Using filesort
1 SIMPLE t2 ref c c 5 test.t1.a 2 100.00
Warnings:
Note 1003 select `test`.`t1`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2` join `test`.`t1` where ((`test`.`t2`.`c` = `test`.`t1`.`a`) and (((`test`.`t1`.`pk` between 5 and 6) and isnull(`test`.`t1`.`b`)) or (`test`.`t1`.`b` = 5))) order by `test`.`t1`.`b`
SELECT t1.b, t2.c, t2.d FROM t2 LEFT JOIN t1 ON t2.c = t1.a
WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
ORDER BY t1.b;
b c d
5 8 88
5 8 81
5 8 88
5 8 81
DROP TABLE t1,t2;
SET optimizer_switch=@save_optimizer_switch;

130
mysql-test/r/join_outer_innodb.result
View File

@ -40,8 +40,7 @@ WHERE t1.col_int_key BETWEEN 5 AND 6
AND t1.pk IS NULL OR t1.pk IN (5)
ORDER BY pk;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 const PRIMARY,col_int_key PRIMARY 4 const 1 Using where
1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t1.col_int 1 Using index
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
SELECT t1.pk
FROM t2 LEFT JOIN t1 ON t2.pk = t1.col_int
@ -60,3 +59,130 @@ WHERE (t1.b NOT BETWEEN 1 AND 7 OR t1.a IS NULL AND t1.b = t2.b) AND t2.b = 4
GROUP BY 1;
a
DROP TABLE t1,t2;
#
Bug #59487: WRONG RESULT WITH STRAIGHT_JOIN AND RIGHT JOIN
#
CREATE TABLE t1 (
pk int(11) NOT NULL,
col_varchar_10_latin1_key varchar(10) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t1 VALUES (1,'1');
CREATE TABLE t2 (
pk int(11) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t2 VALUES (1);
CREATE TABLE t3 (
pk int(11) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t3 VALUES (1);
CREATE TABLE t4 (
pk int(11) NOT NULL,
col_int int(11) DEFAULT NULL,
col_int_key int(11) DEFAULT NULL,
col_varchar_10_latin1_key varchar(10) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t4 VALUES (1,1,1,'1');
CREATE TABLE t5 (
col_int int(11) DEFAULT NULL,
col_varchar_10_utf8_key varchar(10) CHARACTER SET utf8 DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t5 VALUES (1,'1');
CREATE TABLE t6 (
col_int_key int(11) DEFAULT NULL,
col_varchar_10_latin1_key varchar(10) DEFAULT NULL,
pk int(11) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t6 VALUES (1,'1',1);
SELECT STRAIGHT_JOIN t6a.pk, t2.pk
FROM t6 AS t6a
LEFT JOIN
(
t2
RIGHT JOIN
(
(t1 LEFT JOIN (t4 JOIN t3 ON t4.col_int) ON t4.col_int_key = t1.pk)
LEFT JOIN
(t5 JOIN t6 AS t6b
ON t5.col_varchar_10_utf8_key = t6b.col_varchar_10_latin1_key)
ON t1.pk = t5.col_int
)
ON t4.col_varchar_10_latin1_key = t1.col_varchar_10_latin1_key
AND t5.col_varchar_10_utf8_key = 0
)
ON t6a.pk IS TRUE
WHERE t6b.col_int_key IS TRUE;
pk pk
1 NULL
EXPLAIN SELECT STRAIGHT_JOIN t6a.pk, t2.pk
FROM t6 AS t6a
LEFT JOIN
(
t2
RIGHT JOIN
(
(t1 LEFT JOIN (t4 JOIN t3 ON t4.col_int) ON t4.col_int_key = t1.pk)
LEFT JOIN
(t5 JOIN t6 AS t6b
ON t5.col_varchar_10_utf8_key = t6b.col_varchar_10_latin1_key)
ON t1.pk = t5.col_int
)
ON t4.col_varchar_10_latin1_key = t1.col_varchar_10_latin1_key
AND t5.col_varchar_10_utf8_key = 0
)
ON t6a.pk IS TRUE
WHERE t6b.col_int_key IS TRUE;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t6a ALL NULL NULL NULL NULL 1 Using where
1 SIMPLE t1 ALL NULL NULL NULL NULL 1 Using join buffer (flat, BNL join)
1 SIMPLE t4 ALL NULL NULL NULL NULL 1 Using where; Using join buffer (incremental, BNL join)
1 SIMPLE t3 ALL NULL NULL NULL NULL 1 Using join buffer (incremental, BNL join)
1 SIMPLE t5 ALL NULL NULL NULL NULL 1 Using where; Using join buffer (incremental, BNL join)
1 SIMPLE t6b ALL NULL NULL NULL NULL 1 Using where; Using join buffer (incremental, BNL join)
1 SIMPLE t2 ALL NULL NULL NULL NULL 1 Using where; Using join buffer (incremental, BNL join)
SELECT t6a.pk, t2.pk
FROM t6 AS t6a
LEFT JOIN
(
t2
RIGHT JOIN
(
(t1 LEFT JOIN (t4 JOIN t3 ON t4.col_int) ON t4.col_int_key = t1.pk)
LEFT JOIN
(t5 JOIN t6 AS t6b
ON t5.col_varchar_10_utf8_key = t6b.col_varchar_10_latin1_key)
ON t1.pk = t5.col_int
)
ON t4.col_varchar_10_latin1_key = t1.col_varchar_10_latin1_key
AND t5.col_varchar_10_utf8_key = 0
)
ON t6a.pk IS TRUE
WHERE t6b.col_int_key IS TRUE;
pk pk
1 NULL
EXPLAIN SELECT t6a.pk, t2.pk
FROM t6 AS t6a
LEFT JOIN
(
t2
RIGHT JOIN
(
(t1 LEFT JOIN (t4 JOIN t3 ON t4.col_int) ON t4.col_int_key = t1.pk)
LEFT JOIN
(t5 JOIN t6 AS t6b
ON t5.col_varchar_10_utf8_key = t6b.col_varchar_10_latin1_key)
ON t1.pk = t5.col_int
)
ON t4.col_varchar_10_latin1_key = t1.col_varchar_10_latin1_key
AND t5.col_varchar_10_utf8_key = 0
)
ON t6a.pk IS TRUE
WHERE t6b.col_int_key IS TRUE;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t6a ALL NULL NULL NULL NULL 1 Using where
1 SIMPLE t1 ALL NULL NULL NULL NULL 1 Using join buffer (flat, BNL join)
1 SIMPLE t4 ALL NULL NULL NULL NULL 1 Using where; Using join buffer (incremental, BNL join)
1 SIMPLE t3 ALL NULL NULL NULL NULL 1 Using join buffer (incremental, BNL join)
1 SIMPLE t5 ALL NULL NULL NULL NULL 1 Using where; Using join buffer (incremental, BNL join)
1 SIMPLE t2 ALL NULL NULL NULL NULL 1 Using where; Using join buffer (incremental, BNL join)
1 SIMPLE t6b ALL NULL NULL NULL NULL 1 Using where; Using join buffer (incremental, BNL join)
drop table t1,t2,t3,t4,t5,t6;

84
mysql-test/r/join_outer_jcl6.result
View File

@ -1916,6 +1916,90 @@ b b a b
DEALLOCATE PREPARE stmt;
SET SESSION join_cache_level=default;
DROP TABLE t1,t2,t3;
#
# LP bug #943543: LEFT JOIN converted to JOIN with
# ORed IS NULL(primary key) in WHERE clause
#
CREATE TABLE t1 (
a int, b int NOT NULL, pk int NOT NULL,
PRIMARY KEY (pk), INDEX idx(b)
);
INSERT INTO t1 VALUES
(NULL,1,1), (6,2,2), (5,3,3), (NULL,4,4),
(1,9,6), (8,5,7), (NULL,8,8), (8,1,5);
CREATE TABLE t2 (pk int PRIMARY KEY);
INSERT INTO t2 VALUES (3), (8), (5);
EXPLAIN EXTENDED
SELECT t1.pk FROM t2 JOIN t1 ON t2.pk = t1.a
WHERE t1.b BETWEEN 5 AND 6 AND t1.pk IS NULL OR t1.pk = 5
ORDER BY t1.pk;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 100.00
1 SIMPLE t2 const PRIMARY PRIMARY 4 const 1 100.00 Using index
Warnings:
Note 1003 select 5 AS `pk` from `test`.`t2` join `test`.`t1` where (1) order by 5
SELECT t1.pk FROM t2 JOIN t1 ON t2.pk = t1.a
WHERE t1.b BETWEEN 5 AND 6 AND t1.pk IS NULL OR t1.pk = 5
ORDER BY t1.pk;
pk
5
EXPLAIN EXTENDED
SELECT t1.pk FROM t2 LEFT JOIN t1 ON t2.pk = t1.a
WHERE t1.b BETWEEN 5 AND 6 AND t1.pk IS NULL OR t1.pk = 5
ORDER BY t1.pk;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 const PRIMARY,idx PRIMARY 4 const 1 100.00
1 SIMPLE t2 const PRIMARY PRIMARY 4 const 1 100.00 Using index
Warnings:
Note 1003 select 5 AS `pk` from `test`.`t2` join `test`.`t1` where ((((1 between 5 and 6) and isnull(5)) or 1)) order by 5
SELECT t1.pk FROM t2 LEFT JOIN t1 ON t2.pk = t1.a
WHERE t1.b BETWEEN 5 AND 6 AND t1.pk IS NULL OR t1.pk = 5
ORDER BY t1.pk;
pk
5
DROP TABLE t2;
CREATE TABLE t2 (c int, d int, KEY (c));
INSERT INTO t2 VALUES
(3,30), (8,88), (5,50), (8,81),
(4,40), (9,90), (7,70), (9,90),
(13,130), (18,188), (15,150), (18,181),
(14,140), (19,190), (17,170), (19,190);
INSERT INTO t1 VALUES (8,5,9);
EXPLAIN EXTENDED
SELECT t1.b, t2.c, t2.d FROM t2 JOIN t1 ON t2.c = t1.a
WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
ORDER BY t1.b;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ref idx idx 4 const 2 100.00 Using where
1 SIMPLE t2 ref c c 5 test.t1.a 2 100.00
Warnings:
Note 1003 select `test`.`t1`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2` join `test`.`t1` where ((`test`.`t2`.`c` = `test`.`t1`.`a`) and (`test`.`t1`.`b` = 5)) order by `test`.`t1`.`b`
SELECT t1.b, t2.c, t2.d FROM t2 JOIN t1 ON t2.c = t1.a
WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
ORDER BY t1.b;
b c d
5 8 88
5 8 81
5 8 88
5 8 81
EXPLAIN EXTENDED
SELECT t1.b, t2.c, t2.d FROM t2 LEFT JOIN t1 ON t2.c = t1.a
WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
ORDER BY t1.b;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 ref PRIMARY,idx idx 4 const 2 100.00 Using where; Using filesort
1 SIMPLE t2 ref c c 5 test.t1.a 2 100.00
Warnings:
Note 1003 select `test`.`t1`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d` from `test`.`t2` join `test`.`t1` where ((`test`.`t2`.`c` = `test`.`t1`.`a`) and (((`test`.`t1`.`pk` between 5 and 6) and isnull(`test`.`t1`.`b`)) or (`test`.`t1`.`b` = 5))) order by `test`.`t1`.`b`
SELECT t1.b, t2.c, t2.d FROM t2 LEFT JOIN t1 ON t2.c = t1.a
WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
ORDER BY t1.b;
b c d
5 8 88
5 8 81
5 8 88
5 8 81
DROP TABLE t1,t2;
SET optimizer_switch=@save_optimizer_switch;
set join_cache_level=default;
show variables like 'join_cache_level';

6
mysql-test/r/maria_mrr.result
View File

@ -390,6 +390,8 @@ col_varchar_1024_latin1_key varchar(1024) DEFAULT NULL,
PRIMARY KEY (pk),
KEY col_varchar_1024_latin1_key (col_varchar_1024_latin1_key)
) ENGINE=Aria;
Warnings:
Warning 1071 Specified key was too long; max key length is 1000 bytes
INSERT INTO t1 VALUES
(1,'z'), (2,'abcdefjhjkl'), (3,'in'), (4,'abcdefjhjkl'), (6,'abcdefjhjkl'),
(11,'zx'), (12,'abcdefjhjm'), (13,'jn'), (14,'abcdefjhjp'), (16,'abcdefjhjr');
@ -403,7 +405,7 @@ WHERE
table1.col_varchar_1024_latin1_key = table2.col_varchar_10_latin1 AND table1.pk<>0 ;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE table2 ALL NULL NULL NULL NULL 2 Using where
1 SIMPLE table1 ref PRIMARY,col_varchar_1024_latin1_key col_varchar_1024_latin1_key 1027 test.table2.col_varchar_10_latin1 2 Using index condition(BKA); Using where; Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
1 SIMPLE table1 ref PRIMARY,col_varchar_1024_latin1_key col_varchar_1024_latin1_key 1003 test.table2.col_varchar_10_latin1 2 Using where
SELECT count(*)
FROM t1 AS table1, t2 AS table2
WHERE
@ -425,6 +427,8 @@ f4 varchar(1024) COLLATE utf8_bin,
f5 varchar(1024) COLLATE latin1_bin,
KEY (f5)
) ENGINE=Aria TRANSACTIONAL=0 ;
Warnings:
Warning 1071 Specified key was too long; max key length is 1000 bytes
# Fill the table with some data
SELECT alias2.* , alias1.f2
FROM

4
mysql-test/r/select.result
View File

@ -4891,10 +4891,10 @@ SET SESSION join_buffer_size = 2048;
EXPLAIN
SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1
1 SIMPLE t2 ALL NULL NULL NULL NULL 12
1 SIMPLE t1 ALL NULL NULL NULL NULL 1 Using join buffer (flat, BNL join)
1 SIMPLE t3 ALL NULL NULL NULL NULL 1 Using where
1 SIMPLE t4 eq_ref PRIMARY PRIMARY 4 const 1
1 SIMPLE t4 eq_ref PRIMARY PRIMARY 4 test.t1.f1 1
1 SIMPLE t5 ALL NULL NULL NULL NULL 2 Using join buffer (flat, BNL join)
1 SIMPLE t6 ALL NULL NULL NULL NULL 2 Using join buffer (flat, BNL join)
SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6;

6
mysql-test/r/select_jcl6.result
View File

@ -4902,10 +4902,10 @@ SET SESSION join_buffer_size = 2048;
EXPLAIN
SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1
1 SIMPLE t2 ALL NULL NULL NULL NULL 12
1 SIMPLE t3 ALL NULL NULL NULL NULL 1 Using where; Using join buffer (flat, BNL join)
1 SIMPLE t4 eq_ref PRIMARY PRIMARY 4 const 1 Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan
1 SIMPLE t1 ALL NULL NULL NULL NULL 1 Using join buffer (flat, BNL join)
1 SIMPLE t3 ALL NULL NULL NULL NULL 1 Using where; Using join buffer (incremental, BNL join)
1 SIMPLE t4 eq_ref PRIMARY PRIMARY 4 test.t1.f1 1 Using join buffer (incremental, BKA join); Key-ordered Rowid-ordered scan
1 SIMPLE t5 ALL NULL NULL NULL NULL 2 Using join buffer (incremental, BNL join)
1 SIMPLE t6 ALL NULL NULL NULL NULL 2 Using join buffer (incremental, BNL join)
SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6;

4
mysql-test/r/select_pkeycache.result
View File

@ -4891,10 +4891,10 @@ SET SESSION join_buffer_size = 2048;
EXPLAIN
SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 system NULL NULL NULL NULL 1
1 SIMPLE t2 ALL NULL NULL NULL NULL 12
1 SIMPLE t1 ALL NULL NULL NULL NULL 1 Using join buffer (flat, BNL join)
1 SIMPLE t3 ALL NULL NULL NULL NULL 1 Using where
1 SIMPLE t4 eq_ref PRIMARY PRIMARY 4 const 1
1 SIMPLE t4 eq_ref PRIMARY PRIMARY 4 test.t1.f1 1
1 SIMPLE t5 ALL NULL NULL NULL NULL 2 Using join buffer (flat, BNL join)
1 SIMPLE t6 ALL NULL NULL NULL NULL 2 Using join buffer (flat, BNL join)
SELECT STRAIGHT_JOIN * FROM t2, (t1 LEFT JOIN (t3,t4) ON t1.f1 = t4.f1), t5, t6;

14
mysql-test/r/subselect.result
View File

@ -2973,7 +2973,7 @@ Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<expr_cac
explain extended SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 10 func,func 1 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func,func 1 100.00
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 9 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`flag` = 'N'))
@ -3563,7 +3563,7 @@ EXPLAIN
SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 9 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 23 test.t1.a,test.t1.b 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 21 test.t1.a,test.t1.b 1
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 9 Using temporary
ALTER TABLE t1 ADD INDEX(a);
SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
@ -3575,7 +3575,7 @@ EXPLAIN
SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL a NULL NULL NULL 9 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 23 test.t1.a,test.t1.b 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 21 test.t1.a,test.t1.b 1
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 9 Using temporary
DROP TABLE t1;
create table t1( f1 int,f2 int);
@ -4524,14 +4524,14 @@ SET @save_join_cache_level=@@join_cache_level;
SET join_cache_level=0;
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <subquery2> const distinct_key distinct_key 5 const 1 100.00
1 PRIMARY <subquery2> const distinct_key distinct_key 4 const 1 100.00
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary
Warnings:
Note 1003 select 1 AS `1` from <materialize> (select min(`test`.`t1`.`a`) from `test`.`t1` group by `test`.`t1`.`a`) join `test`.`t1` where (`<subquery2>`.`min(a)` = 1)
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 WHERE a > 3 GROUP BY a);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <subquery2> const distinct_key distinct_key 5 const 1 100.00
1 PRIMARY <subquery2> const distinct_key distinct_key 4 const 1 100.00
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary
Warnings:
@ -5984,7 +5984,7 @@ WHERE col_varchar_nokey IN
(SELECT col_varchar_key FROM it1 WHERE col_int_key IS NULL);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot system NULL NULL NULL NULL 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED it1 ref idx_cvk_cik idx_cvk_cik 9 const,const 1 Using where; Using index
SELECT col_int_nokey FROM ot
WHERE col_varchar_nokey IN
@ -5997,7 +5997,7 @@ WHERE (col_varchar_nokey, 'x') IN
(SELECT col_varchar_key, col_varchar_key2 FROM it2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot system NULL NULL NULL NULL 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 10 func,func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func,func 1
2 MATERIALIZED it2 ref idx_cvk_cvk2_cik,idx_cvk_cik idx_cvk_cvk2_cik 8 const,const 1 Using where; Using index
SELECT col_int_nokey FROM ot
WHERE (col_varchar_nokey, 'x') IN

53
mysql-test/r/subselect4.result
View File

@ -564,7 +564,7 @@ WHERE ( t1.f10 ) IN ( SELECT f11 FROM t2 GROUP BY f11 ));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ref f3 f3 5 const 0 Using where
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2
2 SUBQUERY <subquery3> eq_ref distinct_key distinct_key 5 func 1
2 SUBQUERY <subquery3> eq_ref distinct_key distinct_key 4 func 1
3 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT * FROM t1
WHERE f3 = (
@ -579,7 +579,7 @@ WHERE ( f10, f10 ) IN ( SELECT f11, f11 FROM t2 GROUP BY f11 ));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ref f3 f3 5 const 0 Using where
2 SUBQUERY t1 ALL NULL NULL NULL NULL 2
2 SUBQUERY <subquery3> eq_ref distinct_key distinct_key 10 func,func 1
2 SUBQUERY <subquery3> eq_ref distinct_key distinct_key 8 func,func 1
3 MATERIALIZED t2 ALL NULL NULL NULL NULL 2
SELECT * FROM t1
WHERE f3 = (
@ -1129,7 +1129,7 @@ EXPLAIN
SELECT * FROM (t2 LEFT JOIN t1 ON t1.c1) LEFT JOIN t3 on t3.c1 WHERE 's' IN (SELECT c1 FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 0 const row not found
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using join buffer (flat, BNL join)
1 PRIMARY t3 ALL NULL NULL NULL NULL 3 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using where
@ -1138,7 +1138,7 @@ c1 c1 c1
EXPLAIN
SELECT * FROM t4 LEFT JOIN t2 ON t4.c1 WHERE 's' IN (SELECT c1 FROM t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
1 PRIMARY t4 index NULL PRIMARY 3 NULL 2 Using index; Using join buffer (flat, BNL join)
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using where
@ -1704,37 +1704,6 @@ AND t2.f2 = t1.f1;
f1 f2 f1 f2
drop table t1,t2,t3,t4;
#
# LP BUG#806943 Second crash with select_describe with nested subqueries in maria-5.3
#
CREATE TABLE t1 ( f4 int) ;
INSERT INTO t1 VALUES (0),(0);
CREATE TABLE t2 ( f2 int) ;
CREATE TABLE t3 ( f1 int NOT NULL );
CREATE TABLE t4 ( f2 int, f3 int) ;
INSERT INTO t4 VALUES (8,0),(3,0);
EXPLAIN SELECT *
FROM t2, t3
WHERE t3.f1 = (
SELECT SUM( f2 )
FROM t4
WHERE EXISTS (
SELECT DISTINCT f4
FROM t1));
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
2 SUBQUERY t4 ALL NULL NULL NULL NULL 2
3 SUBQUERY t1 ALL NULL NULL NULL NULL 2
SELECT *
FROM t2, t3
WHERE t3.f1 = (
SELECT SUM( f2 )
FROM t4
WHERE EXISTS (
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 (
@ -2031,6 +2000,20 @@ WHERE t2.b IN (SELECT t3.b FROM t3 WHERE t3.a < ANY (SELECT t4.a FROM t4) and t3
c a b
10 7 0
drop table t2, t3, t4;
#
# BUG#934597: Assertion `! is_set()' failed in Diagnostics_area::set_ok_status(THD...
#
CREATE TABLE t1 ( a VARCHAR(1) );
INSERT INTO t1 VALUES ('u'),('k');
CREATE TABLE t2 AS
SELECT a AS field1 FROM t1
WHERE ( SELECT alias1.a
FROM t1 AS alias1
) IS NOT NULL;
ERROR 21000: Subquery returns more than 1 row
DROP TABLE t2;
ERROR 42S02: Unknown table 't2'
DROP TABLE t1;
set optimizer_switch=@subselect4_tmp;
SET optimizer_switch= @@global.optimizer_switch;
set @@tmp_table_size= @@global.tmp_table_size;

56
mysql-test/r/subselect_mat.result
View File

@ -1473,7 +1473,7 @@ SET @@optimizer_switch='semijoin=on,materialization=on';
EXPLAIN SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 2 Using index condition; Rowid-ordered scan
SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
pk
@ -1861,6 +1861,58 @@ WHERE 'condition'='impossible'
MIN(a)
NULL
DROP TABLE t1;
#
# BUG#938131: Subquery materialization is not used in CREATE TABLE SELECT
#
CREATE TABLE t1(a int);
INSERT INTO t1 values(1),(2);
CREATE TABLE t2(a int);
INSERT INTO t2 values(1),(2);
# Should use Materialization:
EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a HAVING a > 1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using temporary
flush status;
CREATE TABLE t3 SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a HAVING a > 1);
SHOW STATUS LIKE 'Created_tmp_tables';
Variable_name Value
Created_tmp_tables 3
DROP TABLE t1,t2,t3;
#
# BUG#939009: Crash with aggregate function in IN subquery
#
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='materialization=on,semijoin=on';
CREATE TABLE t1 (a int, b int);
INSERT INTO t1 VALUES (7,1), (4,2), (7,7);
CREATE TABLE t2 ( c INT );
INSERT INTO t2 VALUES (4), (7), (6);
EXPLAIN EXTENDED
SELECT * FROM t1
WHERE a IN (SELECT MAX(c) FROM t2) AND b=7 AND (a IS NULL OR a=b);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <subquery2> const distinct_key distinct_key 4 const 1 100.00
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from <materialize> (select max(`test`.`t2`.`c`) from `test`.`t2`) join `test`.`t1` where ((`test`.`t1`.`a` = `<subquery2>`.`MAX(c)`) and (`test`.`t1`.`b` = 7) and (<cache>(isnull(`<subquery2>`.`MAX(c)`)) or (`<subquery2>`.`MAX(c)` = 7)))
SELECT * FROM t1
WHERE a IN (SELECT MAX(c) FROM t2) AND b=7 AND (a IS NULL OR a=b);
a b
7 7
EXPLAIN
SELECT * FROM t1
WHERE a IN (SELECT MAX(c) FROM t2 WHERE c < 4) AND b=7 AND (a IS NULL OR a=b);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> const distinct_key distinct_key 4 const 1
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3 Using where
SELECT * FROM t1
WHERE a IN (SELECT MAX(c) FROM t2 WHERE c < 4) AND b=7 AND (a IS NULL OR a=b);
a b
SET optimizer_switch=@save_optimizer_switch;
DROP TABLE t1,t2;
# This must be at the end:
set optimizer_switch=@subselect_sj_mat_tmp;
set join_cache_level=@save_join_cache_level;
@ -1983,7 +2035,7 @@ SET @@optimizer_switch='default,semijoin=on,materialization=on';
EXPLAIN SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 2 Using index condition
SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
pk

2
mysql-test/r/subselect_mat_cost.result
View File

@ -348,7 +348,7 @@ FROM City LEFT JOIN Country ON (Country = Code and City.Population < 10000))
AND Language IN ('English','Spanish');
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY CountryLanguage range Language Language 30 NULL 72 Using index condition; Using where; Rowid-ordered scan
2 DEPENDENT SUBQUERY City ref CityName CityName 35 func 2 Using index condition; Using where
2 DEPENDENT SUBQUERY City ref CityName CityName 35 func 1 Using index condition; Using where
2 DEPENDENT SUBQUERY Country eq_ref PRIMARY PRIMARY 3 world.City.Country 1 Using where; Using index
select count(*)
from CountryLanguage

14
mysql-test/r/subselect_no_scache.result
View File

@ -2979,7 +2979,7 @@ Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two`,<in_optim
explain extended SELECT one,two from t1 where ROW(one,two) IN (SELECT one,two FROM t2 WHERE flag = 'N');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 8 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 10 func,func 1 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func,func 1 100.00
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 9 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`one` AS `one`,`test`.`t1`.`two` AS `two` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`flag` = 'N'))
@ -3569,7 +3569,7 @@ EXPLAIN
SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 9 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 23 test.t1.a,test.t1.b 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 21 test.t1.a,test.t1.b 1
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 9 Using temporary
ALTER TABLE t1 ADD INDEX(a);
SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
@ -3581,7 +3581,7 @@ EXPLAIN
SELECT * FROM t1 WHERE (a,b) = ANY (SELECT a, max(b) FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL a NULL NULL NULL 9 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 23 test.t1.a,test.t1.b 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 21 test.t1.a,test.t1.b 1
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 9 Using temporary
DROP TABLE t1;
create table t1( f1 int,f2 int);
@ -4530,14 +4530,14 @@ SET @save_join_cache_level=@@join_cache_level;
SET join_cache_level=0;
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 GROUP BY a);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <subquery2> const distinct_key distinct_key 5 const 1 100.00
1 PRIMARY <subquery2> const distinct_key distinct_key 4 const 1 100.00
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 100.00 Using temporary
Warnings:
Note 1003 select 1 AS `1` from <materialize> (select min(`test`.`t1`.`a`) from `test`.`t1` group by `test`.`t1`.`a`) join `test`.`t1` where (`<subquery2>`.`min(a)` = 1)
EXPLAIN EXTENDED SELECT 1 FROM t1 WHERE 1 IN (SELECT min(a) FROM t1 WHERE a > 3 GROUP BY a);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <subquery2> const distinct_key distinct_key 5 const 1 100.00
1 PRIMARY <subquery2> const distinct_key distinct_key 4 const 1 100.00
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2 100.00 Using where; Using temporary
Warnings:
@ -5990,7 +5990,7 @@ WHERE col_varchar_nokey IN
(SELECT col_varchar_key FROM it1 WHERE col_int_key IS NULL);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot system NULL NULL NULL NULL 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED it1 ref idx_cvk_cik idx_cvk_cik 9 const,const 1 Using where; Using index
SELECT col_int_nokey FROM ot
WHERE col_varchar_nokey IN
@ -6003,7 +6003,7 @@ WHERE (col_varchar_nokey, 'x') IN
(SELECT col_varchar_key, col_varchar_key2 FROM it2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot system NULL NULL NULL NULL 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 10 func,func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func,func 1
2 MATERIALIZED it2 ref idx_cvk_cvk2_cik,idx_cvk_cik idx_cvk_cvk2_cik 8 const,const 1 Using where; Using index
SELECT col_int_nokey FROM ot
WHERE (col_varchar_nokey, 'x') IN

14
mysql-test/r/subselect_sj.result
View File

@ -802,7 +802,7 @@ INSERT INTO t2 VALUES (1,'i','iiii','iiii','iiii','iiii','ffff','ffff','ffff','f
EXPLAIN EXTENDED SELECT pk FROM t1 WHERE (a, b) IN (SELECT a, b FROM t2 WHERE pk > 0);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 13 func,func 1 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 11 func,func 1 100.00
2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Rowid-ordered scan
Warnings:
Note 1003 select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`pk` > 0))
@ -1053,8 +1053,8 @@ AND t1.val IN (SELECT t3.val FROM t3
WHERE t3.val LIKE 'a%' OR t3.val LIKE 'e%');
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 5
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 14 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 14 func 1
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 13 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 13 func 1
3 MATERIALIZED t3 ALL NULL NULL NULL NULL 5 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
SELECT *
@ -1633,9 +1633,9 @@ select * from t1 A, t1 B
where A.a = B.a and A.a in (select a from t2 C) and B.a in (select a from t2 D);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY A ALL NULL NULL NULL NULL 3
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
1 PRIMARY B ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED C ALL NULL NULL NULL NULL 3
3 MATERIALIZED D ALL NULL NULL NULL NULL 3
drop table t1, t2;
@ -2333,7 +2333,7 @@ explain
SELECT * FROM t1 WHERE (a) IN (SELECT a FROM t2 JOIN t3 ON b = a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 9
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 13 Using where
2 MATERIALIZED t2 ref b b 4 test.t3.a 1 Using index
SELECT * FROM t1 WHERE (a) IN (SELECT a FROM t2 JOIN t3 ON b = a);
@ -2453,7 +2453,7 @@ EXPLAIN
SELECT * FROM t1 RIGHT JOIN t2 ON b = a WHERE t2.b IN (SELECT c FROM t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 2
SELECT * FROM t1 RIGHT JOIN t2 ON b = a WHERE t2.b IN (SELECT c FROM t3);

10
mysql-test/r/subselect_sj2.result
View File

@ -180,7 +180,7 @@ a, mid(filler1, 1,10), length(filler1)=length(filler2)
from t2 ot where a in (select a from t1 it);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot ALL NULL NULL NULL NULL 22
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED it ALL NULL NULL NULL NULL 32
select
a, mid(filler1, 1,10), length(filler1)=length(filler2)
@ -248,7 +248,7 @@ a, mid(filler1, 1,10), length(filler1)=length(filler2)
from t2 ot where a in (select a from t1 it);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot ALL NULL NULL NULL NULL 22
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED it ALL NULL NULL NULL NULL 52
select
a, mid(filler1, 1,10), length(filler1)=length(filler2)
@ -289,7 +289,7 @@ from t0 where a in
(select t2.a+t3.a from t1 left join (t2 join t3) on t2.a=t1.a and t3.a=t1.a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 10
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 9 func 1 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func 1 Using where
2 MATERIALIZED t1 index a a 5 NULL 10 Using where; Using index
2 MATERIALIZED t2 ref a a 5 test.t1.a 1 Using index
2 MATERIALIZED t3 ref a a 5 test.t1.a 1 Using index
@ -718,7 +718,7 @@ The following must use loose index scan over t3, key a:
explain select count(a) from t2 where a in ( SELECT a FROM t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 index a a 5 NULL 1000 Using index
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED t3 index a a 5 NULL 30000 Using index
select count(a) from t2 where a in ( SELECT a FROM t3);
count(a)
@ -875,7 +875,7 @@ SELECT * FROM t3 LEFT JOIN (v1,t2) ON t3.a = t2.a
WHERE t3.b IN (SELECT b FROM t4);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where
1 PRIMARY <derived3> ALL NULL NULL NULL NULL 2
2 MATERIALIZED t4 ALL NULL NULL NULL NULL 2

16
mysql-test/r/subselect_sj2_jcl6.result
View File

@ -130,7 +130,7 @@ set max_heap_table_size= @save_max_heap_table_size;
explain select * from t1 where a in (select b from t2);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED t2 index b b 5 NULL 20 Using index
select * from t1;
a b
@ -192,7 +192,7 @@ a, mid(filler1, 1,10), length(filler1)=length(filler2)
from t2 ot where a in (select a from t1 it);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot ALL NULL NULL NULL NULL 22
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED it ALL NULL NULL NULL NULL 32
select
a, mid(filler1, 1,10), length(filler1)=length(filler2)
@ -260,7 +260,7 @@ a, mid(filler1, 1,10), length(filler1)=length(filler2)
from t2 ot where a in (select a from t1 it);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot ALL NULL NULL NULL NULL 22
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED it ALL NULL NULL NULL NULL 52
select
a, mid(filler1, 1,10), length(filler1)=length(filler2)
@ -301,7 +301,7 @@ from t0 where a in
(select t2.a+t3.a from t1 left join (t2 join t3) on t2.a=t1.a and t3.a=t1.a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 10
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 9 func 1 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func 1 Using where
2 MATERIALIZED t1 index a a 5 NULL 10 Using where; Using index
2 MATERIALIZED t2 ref a a 5 test.t1.a 1 Using index
2 MATERIALIZED t3 ref a a 5 test.t1.a 1 Using index
@ -732,7 +732,7 @@ The following must use loose index scan over t3, key a:
explain select count(a) from t2 where a in ( SELECT a FROM t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 index a a 5 NULL 1000 Using index
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED t3 index a a 5 NULL 30000 Using index
select count(a) from t2 where a in ( SELECT a FROM t3);
count(a)
@ -889,7 +889,7 @@ SELECT * FROM t3 LEFT JOIN (v1,t2) ON t3.a = t2.a
WHERE t3.b IN (SELECT b FROM t4);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
1 PRIMARY t2 hash_ALL NULL #hash#$hj 5 test.t3.a 1 Using where; Using join buffer (flat, BNLH join)
1 PRIMARY <derived3> ALL NULL NULL NULL NULL 2 Using join buffer (incremental, BNL join)
2 MATERIALIZED t4 ALL NULL NULL NULL NULL 2
@ -987,7 +987,7 @@ EXPLAIN
SELECT * FROM t1 WHERE b IN (SELECT a FROM t2 GROUP BY a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 1
SELECT * FROM t1 WHERE b IN (SELECT a FROM t2 GROUP BY a);
a b
@ -996,7 +996,7 @@ EXPLAIN
SELECT * FROM t1 WHERE b IN (SELECT max(a) FROM t2 GROUP BY a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 1 Using where
1 PRIMARY <subquery2> hash_ALL distinct_key #hash#distinct_key 5 test.t1.b 1 Using join buffer (flat, BNLH join)
1 PRIMARY <subquery2> hash_ALL distinct_key #hash#distinct_key 4 test.t1.b 1 Using join buffer (flat, BNLH join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 1 Using temporary
SELECT * FROM t1 WHERE b IN (SELECT max(a) FROM t2 GROUP BY a);
a b

10
mysql-test/r/subselect_sj2_mat.result
View File

@ -182,7 +182,7 @@ a, mid(filler1, 1,10), length(filler1)=length(filler2)
from t2 ot where a in (select a from t1 it);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot ALL NULL NULL NULL NULL 22
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED it ALL NULL NULL NULL NULL 32
select
a, mid(filler1, 1,10), length(filler1)=length(filler2)
@ -250,7 +250,7 @@ a, mid(filler1, 1,10), length(filler1)=length(filler2)
from t2 ot where a in (select a from t1 it);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY ot ALL NULL NULL NULL NULL 22
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED it ALL NULL NULL NULL NULL 52
select
a, mid(filler1, 1,10), length(filler1)=length(filler2)
@ -291,7 +291,7 @@ from t0 where a in
(select t2.a+t3.a from t1 left join (t2 join t3) on t2.a=t1.a and t3.a=t1.a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 10
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 9 func 1 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func 1 Using where
2 MATERIALIZED t1 index a a 5 NULL 10 Using where; Using index
2 MATERIALIZED t2 ref a a 5 test.t1.a 1 Using index
2 MATERIALIZED t3 ref a a 5 test.t1.a 1 Using index
@ -720,7 +720,7 @@ The following must use loose index scan over t3, key a:
explain select count(a) from t2 where a in ( SELECT a FROM t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 index a a 5 NULL 1000 Using index
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED t3 index a a 5 NULL 30000 Using index
select count(a) from t2 where a in ( SELECT a FROM t3);
count(a)
@ -877,7 +877,7 @@ SELECT * FROM t3 LEFT JOIN (v1,t2) ON t3.a = t2.a
WHERE t3.b IN (SELECT b FROM t4);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t3 ALL NULL NULL NULL NULL 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 1 Using where
1 PRIMARY <derived3> ALL NULL NULL NULL NULL 2
2 MATERIALIZED t4 ALL NULL NULL NULL NULL 2

24
mysql-test/r/subselect_sj_jcl6.result
View File

@ -815,7 +815,7 @@ INSERT INTO t2 VALUES (1,'i','iiii','iiii','iiii','iiii','ffff','ffff','ffff','f
EXPLAIN EXTENDED SELECT pk FROM t1 WHERE (a, b) IN (SELECT a, b FROM t2 WHERE pk > 0);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 13 func,func 1 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 11 func,func 1 100.00
2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 2 100.00 Using index condition; Rowid-ordered scan
Warnings:
Note 1003 select `test`.`t1`.`pk` AS `pk` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`pk` > 0))
@ -1066,8 +1066,8 @@ AND t1.val IN (SELECT t3.val FROM t3
WHERE t3.val LIKE 'a%' OR t3.val LIKE 'e%');
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 5
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 14 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 14 func 1
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 13 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 13 func 1
3 MATERIALIZED t3 ALL NULL NULL NULL NULL 5 Using where
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 6 Using where
SELECT *
@ -1646,9 +1646,9 @@ select * from t1 A, t1 B
where A.a = B.a and A.a in (select a from t2 C) and B.a in (select a from t2 D);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY A ALL NULL NULL NULL NULL 3
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
1 PRIMARY B ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED C ALL NULL NULL NULL NULL 3
3 MATERIALIZED D ALL NULL NULL NULL NULL 3
drop table t1, t2;
@ -2003,7 +2003,7 @@ explain extended
SELECT * FROM t1 NATURAL LEFT JOIN (t2, t3) WHERE t2.f3 IN (SELECT * FROM t4);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1 100.00
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join)
1 PRIMARY t3 ALL NULL NULL NULL NULL 5 100.00 Using where; Using join buffer (incremental, BNL join)
2 MATERIALIZED t4 index f2 f2 5 NULL 2 100.00 Using index
@ -2347,7 +2347,7 @@ explain
SELECT * FROM t1 WHERE (a) IN (SELECT a FROM t2 JOIN t3 ON b = a);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 9
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 13 Using where
2 MATERIALIZED t2 ref b b 4 test.t3.a 1 Using index
SELECT * FROM t1 WHERE (a) IN (SELECT a FROM t2 JOIN t3 ON b = a);
@ -2467,7 +2467,7 @@ EXPLAIN
SELECT * FROM t1 RIGHT JOIN t2 ON b = a WHERE t2.b IN (SELECT c FROM t3);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t2 ALL NULL NULL NULL NULL 2
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t3 ALL NULL NULL NULL NULL 2
SELECT * FROM t1 RIGHT JOIN t2 ON b = a WHERE t2.b IN (SELECT c FROM t3);
@ -2783,7 +2783,7 @@ SELECT * FROM t1 LEFT JOIN t2 ON (c = b)
WHERE (a, b) IN (SELECT a, b FROM t1 t);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL idx_a NULL NULL NULL 3
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 10 func,func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func,func 1
1 PRIMARY t2 ref idx_c idx_c 4 test.t1.b 2 Using where; Using index
2 MATERIALIZED t ALL idx_a NULL NULL NULL 3
SELECT * FROM t1 LEFT JOIN t2 ON (c = b)
@ -2798,7 +2798,7 @@ SELECT * FROM t1 LEFT JOIN t3 ON (c = b)
WHERE (a, b) IN (SELECT a, b FROM t1 t);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL idx_a NULL NULL NULL 3
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 10 func,func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func,func 1
1 PRIMARY t3 ref idx_c idx_c 4 test.t1.b 2 Using where
2 MATERIALIZED t ALL idx_a NULL NULL NULL 3
SELECT * FROM t1 LEFT JOIN t3 ON (c = b)
@ -2814,7 +2814,7 @@ SELECT * FROM t1 LEFT JOIN t2 ON (c = b)
WHERE (a, b) IN (SELECT a, b FROM t1 t);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL idx_a NULL NULL NULL 3
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 10 func,func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func,func 1
1 PRIMARY t2 ref idx_c idx_c 4 test.t1.b 2 Using where; Using index
2 MATERIALIZED t ALL idx_a NULL NULL NULL 3
SELECT * FROM t1 LEFT JOIN t2 ON (c = b)
@ -2829,7 +2829,7 @@ SELECT * FROM t1 LEFT JOIN t3 ON (c = b)
WHERE (a, b) IN (SELECT a, b FROM t1 t);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL idx_a NULL NULL NULL 3
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 10 func,func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func,func 1
1 PRIMARY t3 ref idx_c idx_c 4 test.t1.b 2 Using where; Using join buffer (flat, BKA join); Key-ordered Rowid-ordered scan
2 MATERIALIZED t ALL idx_a NULL NULL NULL 3
SELECT * FROM t1 LEFT JOIN t3 ON (c = b)

119
mysql-test/r/subselect_sj_mat.result
View File

@ -47,7 +47,7 @@ explain extended
select * from t1 where a1 in (select b1 from t2 where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 9 func 1 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func 1 100.00
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b1` > '0'))
@ -59,7 +59,7 @@ explain extended
select * from t1 where a1 in (select b1 from t2 where b1 > '0' group by b1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 9 func 1 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func 1 100.00
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b1` > '0'))
@ -71,7 +71,7 @@ explain extended
select * from t1 where (a1, a2) in (select b1, b2 from t2 where b1 > '0' group by b1, b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 func,func 1 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 16 func,func 1 100.00
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from `test`.`t1` semi join (`test`.`t2`) where ((`test`.`t2`.`b1` > '0'))
@ -83,7 +83,7 @@ explain extended
select * from t1 where (a1, a2) in (select b1, min(b2) from t2 where b1 > '0' group by b1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 16 test.t1.a1,test.t1.a2 1 100.00
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Using temporary
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from <materialize> (select `test`.`t2`.`b1`,min(`test`.`t2`.`b2`) from `test`.`t2` where (`test`.`t2`.`b1` > '0') group by `test`.`t2`.`b1`) join `test`.`t1` where ((`<subquery2>`.`min(b2)` = `test`.`t1`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1`.`a1`))
@ -106,7 +106,7 @@ explain extended
select * from t1i where a1 in (select max(b1) from t2i where b1 > '0' group by b1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1i index it1i1,it1i3 # 18 # 3 100.00 #
1 PRIMARY <subquery2> eq_ref distinct_key # 9 # 1 100.00 #
1 PRIMARY <subquery2> eq_ref distinct_key # 8 # 1 100.00 #
2 MATERIALIZED t2i index it2i1,it2i3 # 9 # 5 100.00 #
Warnings:
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from <materialize> (select max(`test`.`t2i`.`b1`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`) join `test`.`t1i` where (`<subquery2>`.`max(b1)` = `test`.`t1i`.`a1`)
@ -153,7 +153,7 @@ explain extended
select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 16 test.t1.a1,test.t1.a2 1 100.00
2 MATERIALIZED t2i range NULL it2i3 9 NULL 3 100.00 Using index for group-by
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from <materialize> (select `test`.`t2i`.`b1`,max(`test`.`t2i`.`b2`) from `test`.`t2i` group by `test`.`t2i`.`b1`) join `test`.`t1` where ((`<subquery2>`.`max(b2)` = `test`.`t1`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1`.`a1`))
@ -165,12 +165,12 @@ prepare st1 from "explain select * from t1 where (a1, a2) in (select b1, max(b2)
execute st1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 16 test.t1.a1,test.t1.a2 1
2 MATERIALIZED t2i range NULL it2i3 9 NULL 3 Using index for group-by
execute st1;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 16 test.t1.a1,test.t1.a2 1
2 MATERIALIZED t2i range NULL it2i3 9 NULL 3 Using index for group-by
prepare st2 from "select * from t1 where (a1, a2) in (select b1, max(b2) from t2i group by b1)";
execute st2;
@ -185,7 +185,7 @@ explain extended
select * from t1 where (a1, a2) in (select b1, min(b2) from t2i where b1 > '0' group by b1);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 16 test.t1.a1,test.t1.a2 1 100.00
2 MATERIALIZED t2i range it2i1,it2i3 it2i3 18 NULL 3 100.00 Using where; Using index for group-by
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from <materialize> (select `test`.`t2i`.`b1`,min(`test`.`t2i`.`b2`) from `test`.`t2i` where (`test`.`t2i`.`b1` > '0') group by `test`.`t2i`.`b1`) join `test`.`t1` where ((`<subquery2>`.`min(b2)` = `test`.`t1`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1`.`a1`))
@ -233,7 +233,7 @@ explain extended
select * from t1 where (a1, a2) in (select b1, b2 from t2 order by b1, b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1.a1,test.t1.a2 1 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 16 test.t1.a1,test.t1.a2 1 100.00
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00
Warnings:
Note 1003 select `test`.`t1`.`a1` AS `a1`,`test`.`t1`.`a2` AS `a2` from <materialize> (select `test`.`t2`.`b1`,`test`.`t2`.`b2` from `test`.`t2` order by `test`.`t2`.`b1`,`test`.`t2`.`b2`) join `test`.`t1` where ((`<subquery2>`.`b2` = `test`.`t1`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1`.`a1`))
@ -245,7 +245,7 @@ explain extended
select * from t1i where (a1, a2) in (select b1, b2 from t2i order by b1, b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1i index it1i1,it1i2,it1i3 it1i3 18 NULL 3 100.00 Using where; Using index
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 test.t1i.a1,test.t1i.a2 1 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 16 test.t1i.a1,test.t1i.a2 1 100.00
2 MATERIALIZED t2i index NULL it2i3 18 NULL 5 100.00 Using index
Warnings:
Note 1003 select `test`.`t1i`.`a1` AS `a1`,`test`.`t1i`.`a2` AS `a2` from <materialize> (select `test`.`t2i`.`b1`,`test`.`t2i`.`b2` from `test`.`t2i` order by `test`.`t2i`.`b1`,`test`.`t2i`.`b2`) join `test`.`t1i` where ((`<subquery2>`.`b2` = `test`.`t1i`.`a2`) and (`<subquery2>`.`b1` = `test`.`t1i`.`a1`))
@ -299,8 +299,8 @@ where (a1, a2) in (select b1, b2 from t2 where b1 > '0') and
where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 18 func,func 1 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 func,func 1 100.00
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 16 func,func 1 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 16 func,func 1 100.00
3 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where
3 MATERIALIZED t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where
@ -341,8 +341,8 @@ b2 in (select c2 from t3 where c2 LIKE '%03')) and
where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY <subquery5> eq_ref distinct_key distinct_key 18 func,func 1 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 18 func,func 1 100.00
1 PRIMARY <subquery5> eq_ref distinct_key distinct_key 16 func,func 1 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 16 func,func 1 100.00
5 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where
5 MATERIALIZED t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 100.00 Using where
@ -367,7 +367,7 @@ b2 in (select c2 from t3 t3b where c2 LIKE '%03')) and
where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY <subquery5> eq_ref distinct_key distinct_key 18 func,func 1 100.00
1 PRIMARY <subquery5> eq_ref distinct_key distinct_key 16 func,func 1 100.00
1 PRIMARY t2 ALL NULL NULL NULL NULL 5 100.00 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
5 MATERIALIZED t3c ALL NULL NULL NULL NULL 4 100.00 Using where
5 MATERIALIZED t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join)
@ -436,7 +436,7 @@ where (a1, a2) in (select * from t1 where a1 > '0' UNION select * from t2 where
where (c1, c2) in (select b1, b2 from t2i where b2 > '0'));
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery4> eq_ref distinct_key distinct_key 18 func,func 1 100.00
1 PRIMARY <subquery4> eq_ref distinct_key distinct_key 16 func,func 1 100.00
4 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where
4 MATERIALIZED t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join)
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
@ -460,7 +460,7 @@ a1 = c1;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY t3 ALL NULL NULL NULL NULL 4 100.00 Using where; Using join buffer (flat, BNL join)
1 PRIMARY <subquery4> eq_ref distinct_key distinct_key 18 func,func 1 100.00
1 PRIMARY <subquery4> eq_ref distinct_key distinct_key 16 func,func 1 100.00
4 MATERIALIZED t3 ALL NULL NULL NULL NULL 4 100.00 Using where
4 MATERIALIZED t2i index it2i1,it2i2,it2i3 it2i3 18 NULL 5 80.00 Using where; Using index; Using join buffer (flat, BNL join)
2 DEPENDENT SUBQUERY t1 ALL NULL NULL NULL NULL 3 100.00 Using where
@ -645,7 +645,7 @@ from t1_16
where a1 in (select substring(b1,1,16) from t2_16 where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 20 func 1 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 19 func 1 100.00 Using where
2 MATERIALIZED t2_16 ALL NULL NULL NULL NULL 3 100.00 Using where
Warnings:
Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from `test`.`t1_16` semi join (`test`.`t2_16`) where ((`test`.`t2_16`.`b1` > '0') and (`test`.`t1_16`.`a1` = substr(`test`.`t2_16`.`b1`,1,16)))
@ -675,7 +675,7 @@ from t1_16
where a1 in (select group_concat(b1) from t2_16 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_16 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_16.a1 1 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 260 test.t1_16.a1 1 100.00 Using where
2 MATERIALIZED t2_16 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_16`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_16`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_16`.`b1` separator ',') from `test`.`t2_16` group by `test`.`t2_16`.`b2`) join `test`.`t1_16` where (`test`.`t1_16`.`a1` = `<subquery2>`.`group_concat(b1)`)
@ -760,7 +760,7 @@ from t1_512
where a1 in (select substring(b1,1,512) from t2_512 where b1 > '0');
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 517 func 1 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 516 func 1 100.00 Using where
2 MATERIALIZED t2_512 ALL NULL NULL NULL NULL 3 100.00 Using where
Warnings:
Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from `test`.`t1_512` semi join (`test`.`t2_512`) where ((`test`.`t2_512`.`b1` > '0') and (`test`.`t1_512`.`a1` = substr(`test`.`t2_512`.`b1`,1,512)))
@ -775,7 +775,7 @@ from t1_512
where a1 in (select group_concat(b1) from t2_512 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_512.a1 1 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 260 test.t1_512.a1 1 100.00 Using where
2 MATERIALIZED t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_512`.`b1` separator ',') from `test`.`t2_512` group by `test`.`t2_512`.`b2`) join `test`.`t1_512` where (`test`.`t1_512`.`a1` = `<subquery2>`.`group_concat(b1)`)
@ -789,7 +789,7 @@ from t1_512
where a1 in (select group_concat(b1) from t2_512 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_512 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_512.a1 1 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 260 test.t1_512.a1 1 100.00 Using where
2 MATERIALIZED t2_512 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_512`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_512`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_512`.`b1` separator ',') from `test`.`t2_512` group by `test`.`t2_512`.`b2`) join `test`.`t1_512` where (`test`.`t1_512`.`a1` = `<subquery2>`.`group_concat(b1)`)
@ -870,7 +870,7 @@ from t1_1024
where a1 in (select group_concat(b1) from t2_1024 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_1024.a1 1 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 260 test.t1_1024.a1 1 100.00 Using where
2 MATERIALIZED t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_1024`.`b1` separator ',') from `test`.`t2_1024` group by `test`.`t2_1024`.`b2`) join `test`.`t1_1024` where (`test`.`t1_1024`.`a1` = `<subquery2>`.`group_concat(b1)`)
@ -884,7 +884,7 @@ from t1_1024
where a1 in (select group_concat(b1) from t2_1024 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_1024 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_1024.a1 1 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 260 test.t1_1024.a1 1 100.00 Using where
2 MATERIALIZED t2_1024 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_1024`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1024`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_1024`.`b1` separator ',') from `test`.`t2_1024` group by `test`.`t2_1024`.`b2`) join `test`.`t1_1024` where (`test`.`t1_1024`.`a1` = `<subquery2>`.`group_concat(b1)`)
@ -965,7 +965,7 @@ from t1_1025
where a1 in (select group_concat(b1) from t2_1025 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_1025.a1 1 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 260 test.t1_1025.a1 1 100.00 Using where
2 MATERIALIZED t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_1025`.`b1` separator ',') from `test`.`t2_1025` group by `test`.`t2_1025`.`b2`) join `test`.`t1_1025` where (`test`.`t1_1025`.`a1` = `<subquery2>`.`group_concat(b1)`)
@ -979,7 +979,7 @@ from t1_1025
where a1 in (select group_concat(b1) from t2_1025 group by b2);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1_1025 ALL NULL NULL NULL NULL 3 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 261 test.t1_1025.a1 1 100.00 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 260 test.t1_1025.a1 1 100.00 Using where
2 MATERIALIZED t2_1025 ALL NULL NULL NULL NULL 3 100.00 Using filesort
Warnings:
Note 1003 select left(`test`.`t1_1025`.`a1`,7) AS `left(a1,7)`,left(`test`.`t1_1025`.`a2`,7) AS `left(a2,7)` from <materialize> (select group_concat(`test`.`t2_1025`.`b1` separator ',') from `test`.`t2_1025` group by `test`.`t2_1025`.`b2`) join `test`.`t1_1025` where (`test`.`t1_1025`.`a1` = `<subquery2>`.`group_concat(b1)`)
@ -1001,7 +1001,7 @@ from t1bit
where (a1, a2) in (select b1, b2 from t2bit);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1bit ALL NULL NULL NULL NULL 3 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 10 func,func 1 100.00
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 8 func,func 1 100.00
2 MATERIALIZED t2bit ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select conv(`test`.`t1bit`.`a1`,10,2) AS `bin(a1)`,conv(`test`.`t1bit`.`a2`,10,2) AS `bin(a2)` from `test`.`t1bit` semi join (`test`.`t2bit`) where 1
@ -1187,7 +1187,7 @@ insert into t1 values (5);
explain select min(a1) from t1 where 7 in (select max(b1) from t2 group by b1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
1 PRIMARY <subquery2> const distinct_key distinct_key 5 const 1
1 PRIMARY <subquery2> const distinct_key distinct_key 4 const 1
2 MATERIALIZED NULL NULL NULL NULL NULL NULL NULL no matching row in const table
select min(a1) from t1 where 7 in (select max(b1) from t2 group by b1);
min(a1)
@ -1236,7 +1236,7 @@ insert into t1 values ('aa', 'aaaa');
explain select a,b from t1 where b in (select a from t1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 3 func 1 Using where
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 2 func 1 Using where
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 2
select a,b from t1 where b in (select a from t1);
a b
@ -1273,7 +1273,7 @@ GROUP BY t3i
);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 system NULL NULL NULL NULL 1
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 5 const 1
1 PRIMARY <subquery3> eq_ref distinct_key distinct_key 4 const 1
1 PRIMARY t2 ALL NULL NULL NULL NULL 2 Using where; Start temporary; End temporary; Using join buffer (flat, BNL join)
1 PRIMARY t4 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
3 MATERIALIZED t3 ALL NULL NULL NULL NULL 2 Using temporary
@ -1510,7 +1510,7 @@ SET @@optimizer_switch='semijoin=on,materialization=on';
EXPLAIN SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED t2 range PRIMARY PRIMARY 4 NULL 2 Using index condition; Rowid-ordered scan
SELECT pk FROM t1 WHERE (a) IN (SELECT a FROM t2 WHERE pk > 0);
pk
@ -1878,7 +1878,7 @@ insert into t2 values
explain select * from t1 where t1.a in (select a from t2 where t2.a=7 or t2.b<=1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 func 1
2 MATERIALIZED t2 ALL i_a NULL NULL NULL 8 Using where
select * from t1 where t1.a in (select a from t2 where t2.a=7 or t2.b<=1);
a b
@ -1898,6 +1898,59 @@ WHERE 'condition'='impossible'
MIN(a)
NULL
DROP TABLE t1;
#
# BUG#938131: Subquery materialization is not used in CREATE TABLE SELECT
#
CREATE TABLE t1(a int);
INSERT INTO t1 values(1),(2);
CREATE TABLE t2(a int);
INSERT INTO t2 values(1),(2);
# Should use Materialization:
EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a HAVING a > 1);
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 <subquery2> eq_ref distinct_key distinct_key 4 test.t1.a 1
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 2 Using temporary
flush status;
CREATE TABLE t3 SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a HAVING a > 1);
SHOW STATUS LIKE 'Created_tmp_tables';
Variable_name Value
Created_tmp_tables 2
DROP TABLE t1,t2,t3;
#
# BUG#939009: Crash with aggregate function in IN subquery
#
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='materialization=on,semijoin=on';
CREATE TABLE t1 (a int, b int);
INSERT INTO t1 VALUES (7,1), (4,2), (7,7);
CREATE TABLE t2 ( c INT );
INSERT INTO t2 VALUES (4), (7), (6);
EXPLAIN EXTENDED
SELECT * FROM t1
WHERE a IN (SELECT MAX(c) FROM t2) AND b=7 AND (a IS NULL OR a=b);
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY <subquery2> const distinct_key distinct_key 4 const 1 100.00
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 100.00 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3 100.00
Warnings:
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from <materialize> (select max(`test`.`t2`.`c`) from `test`.`t2`) join `test`.`t1` where ((`test`.`t1`.`a` = `<subquery2>`.`MAX(c)`) and (`test`.`t1`.`b` = 7) and (<cache>(isnull(`<subquery2>`.`MAX(c)`)) or (`<subquery2>`.`MAX(c)` = 7)))
SELECT * FROM t1
WHERE a IN (SELECT MAX(c) FROM t2) AND b=7 AND (a IS NULL OR a=b);
a b
7 7
EXPLAIN
SELECT * FROM t1
WHERE a IN (SELECT MAX(c) FROM t2 WHERE c < 4) AND b=7 AND (a IS NULL OR a=b);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> const distinct_key distinct_key 4 const 1
1 PRIMARY t1 ALL NULL NULL NULL NULL 3 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 3 Using where
SELECT * FROM t1
WHERE a IN (SELECT MAX(c) FROM t2 WHERE c < 4) AND b=7 AND (a IS NULL OR a=b);
a b
SET optimizer_switch=@save_optimizer_switch;
DROP TABLE t1,t2;
# This must be at the end:
set optimizer_switch=@subselect_sj_mat_tmp;
set join_cache_level=@save_join_cache_level;

14
mysql-test/r/subselect_sj_nonmerged.result
View File

@ -40,14 +40,14 @@ alter table t3 add primary key(a);
# (despite that subquery's join output estimate is 50 rows)
explain select * from t3 where a in (select max(t2.a) from t1, t2 group by t2.b);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 5 Using where
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 5
1 PRIMARY t3 eq_ref PRIMARY PRIMARY 8 <subquery2>.max(t2.a) 1 Using where; Using index
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 Using temporary
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join)
# Compare to this which really will have 50 record combinations:
explain select * from t3 where a in (select max(t2.a) from t1, t2 group by t2.b, t1.b);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 50 Using where
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 50
1 PRIMARY t3 eq_ref PRIMARY PRIMARY 8 <subquery2>.max(t2.a) 1 Using where; Using index
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 Using temporary
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join)
@ -57,7 +57,7 @@ SET optimizer_switch='outer_join_with_cache=off';
explain select * from t3
where a in (select max(t2.a) from t1 left join t2 on t1.a=t2.a group by t2.b, t1.b);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 50 Using where
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 50
1 PRIMARY t3 eq_ref PRIMARY PRIMARY 8 <subquery2>.max(t2.a) 1 Using where; Using index
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 10 Using temporary
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 Using where
@ -69,7 +69,7 @@ t4.b=t0.a and t4.a in (select max(t2.a) from t1, t2 group by t2.b);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t0 ALL NULL NULL NULL NULL 10
1 PRIMARY t4 ALL a NULL NULL NULL 100 Using where; Using join buffer (flat, BNL join)
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 test.t4.a 1
1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 4 test.t4.a 1
2 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 Using temporary
2 MATERIALIZED t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join)
insert into t4 select 100 + (B.a *100 + A.a), 100 + (B.a*100 + A.a), 'filler' from t4 A, t0 B;
@ -77,8 +77,8 @@ explain select * from t4 where
t4.a in (select max(t2.a) from t1, t2 group by t2.b) and
t4.b in (select max(t2.a) from t1, t2 group by t2.b);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 5 Using where
1 PRIMARY <subquery3> ALL distinct_key NULL NULL NULL 5 Using where; Using join buffer (flat, BNL join)
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 5
1 PRIMARY <subquery3> ALL distinct_key NULL NULL NULL 5 Using join buffer (flat, BNL join)
1 PRIMARY t4 ref a a 10 <subquery2>.max(t2.a),<subquery3>.max(t2.a) 12
3 MATERIALIZED t2 ALL NULL NULL NULL NULL 5 Using temporary
3 MATERIALIZED t1 ALL NULL NULL NULL NULL 10 Using join buffer (flat, BNL join)
@ -114,7 +114,7 @@ insert into t1 select A.a + 10*B.a + 100*C.a from t0 A, t0 B, t0 C;
# The following must use non-merged SJ-Materialization:
explain select * from t1 X join t0 Y on X.a < Y.a where X.a in (select max(a) from t0);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 1 Using where
1 PRIMARY <subquery2> ALL distinct_key NULL NULL NULL 1
1 PRIMARY X ref a a 5 <subquery2>.max(a) 1 Using index
1 PRIMARY Y ALL NULL NULL NULL NULL 10 Using where; Using join buffer (flat, BNL join)
2 MATERIALIZED t0 ALL NULL NULL NULL NULL 10

17
mysql-test/r/type_year.result
View File

@ -359,3 +359,20 @@ total_rows min_value MAX(c1+0)
DROP TABLE t1;
#
End of 5.1 tests
create function y2k() returns int deterministic return 2000;
create table t1 (a year(2), b int);
insert t1 values (0,2000);
select a from t1 where a=2000;
a
00
select a from t1 where a=1000+1000;
a
00
select a from t1 where a=(select 2000 from dual where 1);
a
select a from t1 where a=y2k();
a
select a from t1 where a=b;
a
drop table t1;
drop function y2k;

38
mysql-test/suite/maria/r/maria.result
View File

@ -351,14 +351,14 @@ Table Op Msg_type Msg_text
test.t1 check status OK
drop table t1;
CREATE TABLE t1 (a varchar(255), b varchar(255), c varchar(255), d varchar(255), e varchar(255), KEY t1 (a, b, c, d, e));
ERROR 42000: Specified key was too long; max key length is 1208 bytes
ERROR 42000: Specified key was too long; max key length is 1000 bytes
CREATE TABLE t1 (a varchar(32000), unique key(a));
ERROR 42000: Specified key was too long; max key length is 1208 bytes
ERROR 42000: Specified key was too long; max key length is 1000 bytes
CREATE TABLE t1 (a varchar(1), b varchar(1), key (a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b,a,b));
ERROR 42000: Too many key parts specified; max 32 parts allowed
CREATE TABLE t1 (a varchar(255), b varchar(255), c varchar(255), d varchar(255), e varchar(255));
ALTER TABLE t1 ADD INDEX t1 (a, b, c, d, e);
ERROR 42000: Specified key was too long; max key length is 1208 bytes
ERROR 42000: Specified key was too long; max key length is 1000 bytes
DROP TABLE t1;
CREATE TABLE t1 (a int not null, b int, c int, key(b), key(c), key(a,b), key(c,a));
INSERT into t1 values (0,null,0), (0,null,1), (0,null,2), (0,null,3), (1,1,4);
@ -1565,7 +1565,7 @@ a b
drop table t1;
create table t1 (v varchar(65530), key(v));
Warnings:
Warning 1071 Specified key was too long; max key length is 1208 bytes
Warning 1071 Specified key was too long; max key length is 1000 bytes
drop table if exists t1;
create table t1 (v varchar(65536));
Warnings:
@ -1803,34 +1803,34 @@ t1 CREATE TABLE `t1` (
drop table t1;
create table t1 (a varchar(2048), key `a` (a));
Warnings:
Warning 1071 Specified key was too long; max key length is 1208 bytes
Warning 1071 Specified key was too long; max key length is 1000 bytes
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` varchar(2048) DEFAULT NULL,
KEY `a` (`a`(1208))
KEY `a` (`a`(1000))
) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0
drop table t1;
create table t1 (a varchar(2048), key `a` (a) key_block_size=1024);
Warnings:
Warning 1071 Specified key was too long; max key length is 1208 bytes
Warning 1071 Specified key was too long; max key length is 1000 bytes
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` varchar(2048) DEFAULT NULL,
KEY `a` (`a`(1208)) KEY_BLOCK_SIZE=8192
KEY `a` (`a`(1000)) KEY_BLOCK_SIZE=8192
) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0
drop table t1;
create table t1 (a int not null, b varchar(2048), key (a), key(b)) key_block_size=1024;
Warnings:
Warning 1071 Specified key was too long; max key length is 1208 bytes
Warning 1071 Specified key was too long; max key length is 1000 bytes
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) NOT NULL,
`b` varchar(2048) DEFAULT NULL,
KEY `a` (`a`) KEY_BLOCK_SIZE=8192,
KEY `b` (`b`(1208)) KEY_BLOCK_SIZE=8192
KEY `b` (`b`(1000)) KEY_BLOCK_SIZE=8192
) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 KEY_BLOCK_SIZE=1024
alter table t1 key_block_size=2048;
show create table t1;
@ -1839,7 +1839,7 @@ t1 CREATE TABLE `t1` (
`a` int(11) NOT NULL,
`b` varchar(2048) DEFAULT NULL,
KEY `a` (`a`) KEY_BLOCK_SIZE=8192,
KEY `b` (`b`(1208)) KEY_BLOCK_SIZE=8192
KEY `b` (`b`(1000)) KEY_BLOCK_SIZE=8192
) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 KEY_BLOCK_SIZE=2048
alter table t1 add c int, add key (c);
show create table t1;
@ -1849,7 +1849,7 @@ t1 CREATE TABLE `t1` (
`b` varchar(2048) DEFAULT NULL,
`c` int(11) DEFAULT NULL,
KEY `a` (`a`) KEY_BLOCK_SIZE=8192,
KEY `b` (`b`(1208)) KEY_BLOCK_SIZE=8192,
KEY `b` (`b`(1000)) KEY_BLOCK_SIZE=8192,
KEY `c` (`c`) KEY_BLOCK_SIZE=8192
) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 KEY_BLOCK_SIZE=2048
alter table t1 key_block_size=0;
@ -1862,33 +1862,33 @@ t1 CREATE TABLE `t1` (
`c` int(11) DEFAULT NULL,
`d` int(11) DEFAULT NULL,
KEY `a` (`a`) KEY_BLOCK_SIZE=8192,
KEY `b` (`b`(1208)) KEY_BLOCK_SIZE=8192,
KEY `b` (`b`(1000)) KEY_BLOCK_SIZE=8192,
KEY `c` (`c`) KEY_BLOCK_SIZE=8192,
KEY `d` (`d`)
) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0
drop table t1;
create table t1 (a int not null, b varchar(2048), key (a), key(b)) key_block_size=8192;
Warnings:
Warning 1071 Specified key was too long; max key length is 1208 bytes
Warning 1071 Specified key was too long; max key length is 1000 bytes
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) NOT NULL,
`b` varchar(2048) DEFAULT NULL,
KEY `a` (`a`),
KEY `b` (`b`(1208))
KEY `b` (`b`(1000))
) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 KEY_BLOCK_SIZE=8192
drop table t1;
create table t1 (a int not null, b varchar(2048), key (a) key_block_size=1024, key(b)) key_block_size=8192;
Warnings:
Warning 1071 Specified key was too long; max key length is 1208 bytes
Warning 1071 Specified key was too long; max key length is 1000 bytes
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` int(11) NOT NULL,
`b` varchar(2048) DEFAULT NULL,
KEY `a` (`a`),
KEY `b` (`b`(1208))
KEY `b` (`b`(1000))
) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0 KEY_BLOCK_SIZE=8192
drop table t1;
create table t1 (a int not null, b int, key (a) key_block_size=1024, key(b) key_block_size=8192) key_block_size=16384;
@ -1911,12 +1911,12 @@ t1 CREATE TABLE `t1` (
drop table t1;
create table t1 (a varchar(2048), key `a` (a) key_block_size=1000000000000000000);
Warnings:
Warning 1071 Specified key was too long; max key length is 1208 bytes
Warning 1071 Specified key was too long; max key length is 1000 bytes
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` varchar(2048) DEFAULT NULL,
KEY `a` (`a`(1208)) KEY_BLOCK_SIZE=8192
KEY `a` (`a`(1000)) KEY_BLOCK_SIZE=8192
) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0
drop table t1;
create table t1 (a int not null, key `a` (a) key_block_size=1025);

51
mysql-test/suite/maria/r/maria3.result
View File

@ -17,12 +17,12 @@ t1 CREATE TABLE `t1` (
drop table t1;
create table t1 (a varchar(2048), key `a` (a) key_block_size=1000000000000000000);
Warnings:
Warning 1071 Specified key was too long; max key length is 1208 bytes
Warning 1071 Specified key was too long; max key length is 1000 bytes
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` varchar(2048) DEFAULT NULL,
KEY `a` (`a`(1208)) KEY_BLOCK_SIZE=8192
KEY `a` (`a`(1000)) KEY_BLOCK_SIZE=8192
) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=0
drop table t1;
create table t1 (a int not null, key `a` (a) key_block_size=1025);
@ -620,6 +620,53 @@ ERROR 23000: Duplicate entry '2' for key 'a'
insert into t1 values(3);
insert into t2 values(3);
drop table t1, t2;
CREATE TABLE t1 (
a INT PRIMARY KEY,
b CHAR(255),
c VARCHAR(2048),
d VARCHAR(18990),
e CHAR(128),
f CHAR(192)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
INSERT INTO t1 VALUES
(1,'A','B','C','','D'),
(2,'Abcdefghi','E','F','','G');
CREATE TABLE t2 (
g INT PRIMARY KEY,
h CHAR(32),
i CHAR(255),
j TEXT
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
INSERT INTO t2 VALUES (1,'M','','H'),
(2,'N','','H');
SELECT * FROM t1, t2 WHERE a = g ORDER BY b;
a b c d e f g h i j
1 A B C D 1 M H
2 Abcdefghi E F G 2 N H
drop table t1,t2;
CREATE TABLE t1 ( a VARCHAR(800),KEY(a) )
ENGINE=Aria DEFAULT CHARACTER SET latin1;
INSERT INTO t1 VALUES
(REPEAT('abc ',200)), (REPEAT('def ',200)),
(REPEAT('ghi ',200)), (REPEAT('jkl ',200));
INSERT INTO t1 SELECT * FROM t1;
CHECK TABLE t1;
Table Op Msg_type Msg_text
test.t1 check status OK
ALTER TABLE t1 MODIFY a VARCHAR(800) CHARSET `ucs2`;
Warnings:
Warning 1071 Specified key was too long; max key length is 1000 bytes
Warning 1071 Specified key was too long; max key length is 1000 bytes
CHECK TABLE t1;
Table Op Msg_type Msg_text
test.t1 check status OK
SHOW CREATE table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` varchar(800) CHARACTER SET ucs2 DEFAULT NULL,
KEY `a` (`a`(500))
) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1
DROP TABLE t1;
create table t1 (a int) engine=aria;
lock table t1 write;
drop table t1;

50
mysql-test/suite/maria/t/maria3.test
View File

@ -523,8 +523,58 @@ insert into t2 values(3);
connection default;
drop table t1, t2;
#
# BUG#909635 - MariaDB crashes on a select with long varchar and blob fields
#
CREATE TABLE t1 (
a INT PRIMARY KEY,
b CHAR(255),
c VARCHAR(2048),
d VARCHAR(18990),
e CHAR(128),
f CHAR(192)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
INSERT INTO t1 VALUES
(1,'A','B','C','','D'),
(2,'Abcdefghi','E','F','','G');
CREATE TABLE t2 (
g INT PRIMARY KEY,
h CHAR(32),
i CHAR(255),
j TEXT
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
INSERT INTO t2 VALUES (1,'M','','H'),
(2,'N','','H');
SELECT * FROM t1, t2 WHERE a = g ORDER BY b;
drop table t1,t2;
# End of 5.1 tests
#
# bug#905716: Assertion `page->size <= share->max_index_block_size'
#
CREATE TABLE t1 ( a VARCHAR(800),KEY(a) )
ENGINE=Aria DEFAULT CHARACTER SET latin1;
INSERT INTO t1 VALUES
(REPEAT('abc ',200)), (REPEAT('def ',200)),
(REPEAT('ghi ',200)), (REPEAT('jkl ',200));
INSERT INTO t1 SELECT * FROM t1;
# check table is not needed to reproduce the problem,
# but shows that by this time the table appears to be okay.
CHECK TABLE t1;
ALTER TABLE t1 MODIFY a VARCHAR(800) CHARSET `ucs2`;
CHECK TABLE t1;
SHOW CREATE table t1;
DROP TABLE t1;
# End of 5.2 tests
create table t1 (a int) engine=aria;
lock table t1 write;
drop table t1;

4
mysql-test/suite/maria/t/optimize.test
View File

File diff suppressed because one or more lines are too long

43
mysql-test/t/having.test
View File

@ -589,9 +589,17 @@ ORDER BY t1.f1;
DROP TABLE t1,t2;
--echo End of 5.1 tests
--echo #
--echo # LP bug:938518 HAVING does not reject the result of aggregation
--echo #
CREATE TABLE t1 (pk INT PRIMARY KEY, a INT);
INSERT INTO t1 VALUES (2,7), (4,7), (6,2), (17,0);
SELECT MIN(t.pk) FROM t1, t1 as t WHERE t1.pk = 1;
SELECT MIN(t.pk) FROM t1, t1 as t WHERE t1.pk = 1 HAVING MIN(t.pk) < 10;
drop table t1;
--echo #
--echo # LP bug #791761: MAX over an empty join + HAVING
--echo #
@ -616,3 +624,36 @@ SELECT MAX(t1.b) AS f FROM t1 JOIN t2 ON t2.a != 0
WHERE (SELECT f3 FROM t3) <> 0 HAVING f <> 6 ;
DROP TABLE t1,t2,t3;
--echo #
--echo # LP bug:806955 HAVING not observed with aggregate +subquery
--echo #
CREATE TABLE t1 (f3 int, f10 varchar(1), f11 int, KEY (f10) );
INSERT INTO t1 VALUES (NULL,'a',0),(8,'b',0);
CREATE TABLE t2 (f2 int);
INSERT INTO t2 VALUES (7);
CREATE TABLE t3 (f3 int);
INSERT INTO t3 VALUES (0),(8);
set @save_optimizer_switch=@@optimizer_switch;
set optimizer_switch='semijoin=off,materialization=off';
SELECT MIN( t1.f10 ) AS field1
FROM t1 , t2
WHERE t2.f2 IN ( SELECT f3 FROM t3 )
HAVING field1 < 's';
explain extended
SELECT MIN( t1.f10 ) AS field1
FROM t1 , t2
WHERE t2.f2 IN ( SELECT f3 FROM t3 )
HAVING field1 < 's';
set optimizer_switch=@save_optimizer_switch;
drop table t1,t2,t3;
--echo End of 5.2 tests

41
mysql-test/t/join.test
View File

@ -941,7 +941,6 @@ SELECT f1 , MIN(f2) FROM v2 GROUP BY f1;
drop table t1,t2;
drop view v1,v2;
--echo #
--echo # BUG#47217 Lost optimization caused slowdown & wrong result.
--echo #
@ -963,6 +962,46 @@ DROP TABLE t1, t2;
--echo End of 5.1 tests
--echo #
--echo # Bug #43368: STRAIGHT_JOIN DOESN'T WORK FOR NESTED JOINS
--echo #
create table t1(c1 int primary key, c2 char(10)) engine=myisam;
create table t2(c1 int primary key, c2 char(10), ref_t1 int) engine=myisam;
create table t3(c1 int primary key, c2 char(10), ref_t1 int) engine=myisam;
create table t4(c1 int primary key, c2 char(10), ref_t1 int) engine=myisam;
insert into t1 values(1,'a');
insert into t2 values(1,'a', 1);
insert into t3 values(1,'a', 1);
insert into t3 values(2,'b',2);
insert into t4 values(1,'a', 1);
insert into t4 values(2,'a', 2);
insert into t4 values(3,'a', 3);
insert into t4 values(4,'a', 4);
insert into t1 values(2,'b');
insert into t1 values(3,'c');
EXPLAIN
SELECT *
FROM t4 JOIN
(t1 JOIN t3 ON t3.ref_t1=t1.c1 JOIN t2 ON t2.ref_t1=t1.c1)
ON t4.ref_t1=t1.c1;
EXPLAIN
SELECT STRAIGHT_JOIN *
FROM t4 JOIN
(t1 JOIN t3 ON t3.ref_t1=t1.c1 JOIN t2 ON t2.ref_t1=t1.c1)
ON t4.ref_t1=t1.c1;
EXPLAIN
SELECT *
FROM t4 STRAIGHT_JOIN
(t1 JOIN t3 ON t3.ref_t1=t1.c1 JOIN t2 ON t2.ref_t1=t1.c1)
ON t4.ref_t1=t1.c1;
drop table t1,t2,t3,t4;
--echo End of 5.2 tests
--echo #
--echo # BUG#724275: Crash in JOIN::optimize in maria-5.3
--echo #

61
mysql-test/t/join_outer.test
View File

@ -1486,4 +1486,65 @@ SET SESSION join_cache_level=default;
DROP TABLE t1,t2,t3;
--echo #
--echo # LP bug #943543: LEFT JOIN converted to JOIN with
--echo # ORed IS NULL(primary key) in WHERE clause
--echo #
CREATE TABLE t1 (
a int, b int NOT NULL, pk int NOT NULL,
PRIMARY KEY (pk), INDEX idx(b)
);
INSERT INTO t1 VALUES
(NULL,1,1), (6,2,2), (5,3,3), (NULL,4,4),
(1,9,6), (8,5,7), (NULL,8,8), (8,1,5);
CREATE TABLE t2 (pk int PRIMARY KEY);
INSERT INTO t2 VALUES (3), (8), (5);
EXPLAIN EXTENDED
SELECT t1.pk FROM t2 JOIN t1 ON t2.pk = t1.a
WHERE t1.b BETWEEN 5 AND 6 AND t1.pk IS NULL OR t1.pk = 5
ORDER BY t1.pk;
SELECT t1.pk FROM t2 JOIN t1 ON t2.pk = t1.a
WHERE t1.b BETWEEN 5 AND 6 AND t1.pk IS NULL OR t1.pk = 5
ORDER BY t1.pk;
EXPLAIN EXTENDED
SELECT t1.pk FROM t2 LEFT JOIN t1 ON t2.pk = t1.a
WHERE t1.b BETWEEN 5 AND 6 AND t1.pk IS NULL OR t1.pk = 5
ORDER BY t1.pk;
SELECT t1.pk FROM t2 LEFT JOIN t1 ON t2.pk = t1.a
WHERE t1.b BETWEEN 5 AND 6 AND t1.pk IS NULL OR t1.pk = 5
ORDER BY t1.pk;
DROP TABLE t2;
CREATE TABLE t2 (c int, d int, KEY (c));
INSERT INTO t2 VALUES
(3,30), (8,88), (5,50), (8,81),
(4,40), (9,90), (7,70), (9,90),
(13,130), (18,188), (15,150), (18,181),
(14,140), (19,190), (17,170), (19,190);
INSERT INTO t1 VALUES (8,5,9);
EXPLAIN EXTENDED
SELECT t1.b, t2.c, t2.d FROM t2 JOIN t1 ON t2.c = t1.a
WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
ORDER BY t1.b;
SELECT t1.b, t2.c, t2.d FROM t2 JOIN t1 ON t2.c = t1.a
WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
ORDER BY t1.b;
EXPLAIN EXTENDED
SELECT t1.b, t2.c, t2.d FROM t2 LEFT JOIN t1 ON t2.c = t1.a
WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
ORDER BY t1.b;
SELECT t1.b, t2.c, t2.d FROM t2 LEFT JOIN t1 ON t2.c = t1.a
WHERE t1.pk BETWEEN 5 AND 6 AND t1.b IS NULL OR t1.b = 5
ORDER BY t1.b;
DROP TABLE t1,t2;
SET optimizer_switch=@save_optimizer_switch;

67
mysql-test/t/join_outer_innodb.test
View File

@ -76,3 +76,70 @@ SELECT STRAIGHT_JOIN t1.a FROM t1 RIGHT JOIN t2 ON t1.b = t2.b
GROUP BY 1;
DROP TABLE t1,t2;
--echo #
--echo Bug #59487: WRONG RESULT WITH STRAIGHT_JOIN AND RIGHT JOIN
--echo #
CREATE TABLE t1 (
pk int(11) NOT NULL,
col_varchar_10_latin1_key varchar(10) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t1 VALUES (1,'1');
CREATE TABLE t2 (
pk int(11) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t2 VALUES (1);
CREATE TABLE t3 (
pk int(11) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t3 VALUES (1);
CREATE TABLE t4 (
pk int(11) NOT NULL,
col_int int(11) DEFAULT NULL,
col_int_key int(11) DEFAULT NULL,
col_varchar_10_latin1_key varchar(10) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t4 VALUES (1,1,1,'1');
CREATE TABLE t5 (
col_int int(11) DEFAULT NULL,
col_varchar_10_utf8_key varchar(10) CHARACTER SET utf8 DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t5 VALUES (1,'1');
CREATE TABLE t6 (
col_int_key int(11) DEFAULT NULL,
col_varchar_10_latin1_key varchar(10) DEFAULT NULL,
pk int(11) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t6 VALUES (1,'1',1);
# EXPLAIN of query above (t2 is before t5 in plan)
let $rest_of_query=t6a.pk, t2.pk
FROM t6 AS t6a
LEFT JOIN
(
t2
RIGHT JOIN
(
(t1 LEFT JOIN (t4 JOIN t3 ON t4.col_int) ON t4.col_int_key = t1.pk)
LEFT JOIN
(t5 JOIN t6 AS t6b
ON t5.col_varchar_10_utf8_key = t6b.col_varchar_10_latin1_key)
ON t1.pk = t5.col_int
)
ON t4.col_varchar_10_latin1_key = t1.col_varchar_10_latin1_key
AND t5.col_varchar_10_utf8_key = 0
)
ON t6a.pk IS TRUE
WHERE t6b.col_int_key IS TRUE;
eval SELECT STRAIGHT_JOIN $rest_of_query;
eval EXPLAIN SELECT STRAIGHT_JOIN $rest_of_query;
# right result (same query, just remove STRAIGHT_JOIN):
eval SELECT $rest_of_query;
eval EXPLAIN SELECT $rest_of_query;
drop table t1,t2,t3,t4,t5,t6;

49
mysql-test/t/subselect4.test
View File

@ -1370,39 +1370,6 @@ WHERE t2.f2 = (SELECT f2 FROM t3
drop table t1,t2,t3,t4;
--echo #
--echo # LP BUG#806943 Second crash with select_describe with nested subqueries in maria-5.3
--echo #
CREATE TABLE t1 ( f4 int) ;
INSERT INTO t1 VALUES (0),(0);
CREATE TABLE t2 ( f2 int) ;
CREATE TABLE t3 ( f1 int NOT NULL );
CREATE TABLE t4 ( f2 int, f3 int) ;
INSERT INTO t4 VALUES (8,0),(3,0);
EXPLAIN SELECT *
FROM t2, t3
WHERE t3.f1 = (
SELECT SUM( f2 )
FROM t4
WHERE EXISTS (
SELECT DISTINCT f4
FROM t1));
SELECT *
FROM t2, t3
WHERE t3.f1 = (
SELECT SUM( f2 )
FROM t4
WHERE EXISTS (
SELECT DISTINCT f4
FROM t1));
drop table t1, t2, t3, t4;
--echo #
--echo # LP BUG#611690 Crash in select_describe() with nested subqueries
--echo #
@ -1665,6 +1632,22 @@ WHERE t2.b IN (SELECT t3.b FROM t3 WHERE t3.a < ANY (SELECT t4.a FROM t4) and t3
drop table t2, t3, t4;
--echo #
--echo # BUG#934597: Assertion `! is_set()' failed in Diagnostics_area::set_ok_status(THD...
--echo #
CREATE TABLE t1 ( a VARCHAR(1) );
INSERT INTO t1 VALUES ('u'),('k');
--error ER_SUBQUERY_NO_1_ROW
CREATE TABLE t2 AS
SELECT a AS field1 FROM t1
WHERE ( SELECT alias1.a
FROM t1 AS alias1
) IS NOT NULL;
--error ER_BAD_TABLE_ERROR
DROP TABLE t2;
DROP TABLE t1;
set optimizer_switch=@subselect4_tmp;
SET optimizer_switch= @@global.optimizer_switch;

43
mysql-test/t/subselect_sj_mat.test
View File

@ -1559,6 +1559,49 @@ WHERE a IN (
DROP TABLE t1;
--echo #
--echo # BUG#938131: Subquery materialization is not used in CREATE TABLE SELECT
--echo #
CREATE TABLE t1(a int);
INSERT INTO t1 values(1),(2);
CREATE TABLE t2(a int);
INSERT INTO t2 values(1),(2);
--echo # Should use Materialization:
EXPLAIN SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a HAVING a > 1);
flush status;
CREATE TABLE t3 SELECT * FROM t1 WHERE a IN (SELECT * FROM t2 GROUP BY a HAVING a > 1);
SHOW STATUS LIKE 'Created_tmp_tables';
DROP TABLE t1,t2,t3;
--echo #
--echo # BUG#939009: Crash with aggregate function in IN subquery
--echo #
SET @save_optimizer_switch=@@optimizer_switch;
SET optimizer_switch='materialization=on,semijoin=on';
CREATE TABLE t1 (a int, b int);
INSERT INTO t1 VALUES (7,1), (4,2), (7,7);
CREATE TABLE t2 ( c INT );
INSERT INTO t2 VALUES (4), (7), (6);
EXPLAIN EXTENDED
SELECT * FROM t1
WHERE a IN (SELECT MAX(c) FROM t2) AND b=7 AND (a IS NULL OR a=b);
SELECT * FROM t1
WHERE a IN (SELECT MAX(c) FROM t2) AND b=7 AND (a IS NULL OR a=b);
EXPLAIN
SELECT * FROM t1
WHERE a IN (SELECT MAX(c) FROM t2 WHERE c < 4) AND b=7 AND (a IS NULL OR a=b);
SELECT * FROM t1
WHERE a IN (SELECT MAX(c) FROM t2 WHERE c < 4) AND b=7 AND (a IS NULL OR a=b);
SET optimizer_switch=@save_optimizer_switch;
DROP TABLE t1,t2;
--echo # This must be at the end:
set optimizer_switch=@subselect_sj_mat_tmp;
set join_cache_level=@save_join_cache_level;

17
mysql-test/t/type_year.test
View File

@ -163,3 +163,20 @@ DROP TABLE t1;
--echo #
--echo End of 5.1 tests
#
# fun with convert_const_to_int
# in some cases 00 is equal to 2000, in others it is not.
#
create function y2k() returns int deterministic return 2000;
create table t1 (a year(2), b int);
insert t1 values (0,2000);
select a from t1 where a=2000; # constant.
select a from t1 where a=1000+1000; # still a constant.
# select a from t1 where a=(select 2000); # even this is a constant
select a from t1 where a=(select 2000 from dual where 1); # constant, but "expensive"
select a from t1 where a=y2k(); # constant, but "expensive"
select a from t1 where a=b; # not a constant
drop table t1;
drop function y2k;

9
mysys/mf_keycache.c
View File

@ -5903,6 +5903,10 @@ int init_key_cache(KEY_CACHE *keycache, uint key_cache_block_size,
((PARTITIONED_KEY_CACHE_CB *) keycache_cb)->partitions :
0;
DBUG_ASSERT(partitions <= MAX_KEY_CACHE_PARTITIONS);
keycache->key_cache_mem_size=
keycache->partitions ?
((PARTITIONED_KEY_CACHE_CB *) keycache_cb)->key_cache_mem_size :
((SIMPLE_KEY_CACHE_CB *) keycache_cb)->key_cache_mem_size;
if (blocks > 0)
keycache->can_be_used= 1;
return blocks;
@ -5966,6 +5970,11 @@ int resize_key_cache(KEY_CACHE *keycache, uint key_cache_block_size,
((PARTITIONED_KEY_CACHE_CB *)(keycache->keycache_cb))->partitions;
}
keycache->key_cache_mem_size=
keycache->partitions ?
((PARTITIONED_KEY_CACHE_CB *)(keycache->keycache_cb))->key_cache_mem_size :
((SIMPLE_KEY_CACHE_CB *)(keycache->keycache_cb))->key_cache_mem_size;
keycache->can_be_used= (blocks >= 0);
}
return blocks;

10
sql/field_conv.cc
View File

@ -117,6 +117,11 @@ static void do_outer_field_to_null_str(Copy_field *copy)
int
set_field_to_null(Field *field)
{
if (field->table->null_catch_flags & CHECK_ROW_FOR_NULLS_TO_REJECT)
{
field->table->null_catch_flags|= REJECT_ROW_DUE_TO_NULL_FIELDS;
return -1;
}
if (field->real_maybe_null())
{
field->set_null();
@ -160,6 +165,11 @@ set_field_to_null(Field *field)
int
set_field_to_null_with_conversions(Field *field, bool no_conversions)
{
if (field->table->null_catch_flags & CHECK_ROW_FOR_NULLS_TO_REJECT)
{
field->table->null_catch_flags|= REJECT_ROW_DUE_TO_NULL_FIELDS;
return -1;
}
if (field->real_maybe_null())
{
field->set_null();

1
sql/item.h
View File

@ -1158,7 +1158,6 @@ public:
virtual bool update_table_bitmaps_processor(uchar *arg) { return 0; }
virtual bool view_used_tables_processor(uchar *arg) { return 0; }
virtual bool eval_not_null_tables(uchar *opt_arg) { return 0; }
virtual bool clear_sum_processor(uchar *opt_arg) { return 0; }
virtual bool is_subquery_processor (uchar *opt_arg) { return 0; }
virtual bool limit_index_condition_pushdown_processor(uchar *opt_arg)
{

5
sql/item_subselect.cc
View File

@ -4194,6 +4194,11 @@ bool subselect_hash_sj_engine::init(List<Item> *tmp_columns, uint subquery_id)
memcpy(name, buf, len+1);
result_sink->get_tmp_table_param()->materialized_subquery= true;
if (item->substype() == Item_subselect::IN_SUBS &&
((Item_in_subselect*)item)->is_jtbm_merged)
{
result_sink->get_tmp_table_param()->force_not_null_cols= true;
}
if (result_sink->create_result_table(thd, tmp_columns, TRUE,
tmp_create_options,
name, TRUE, TRUE))

1
sql/item_sum.h
View File

@ -547,7 +547,6 @@ public:
{
return trace_unsupported_by_check_vcol_func_processor(func_name());
}
bool clear_sum_processor(uchar *arg) { clear(); return 0; }
};

8
sql/opt_subselect.cc
View File

@ -268,8 +268,8 @@ bool is_materialization_applicable(THD *thd, Item_in_subselect *in_subs,
Subquery !contains {GROUP BY, ORDER BY [LIMIT],
aggregate functions}) && subquery predicate is not under "NOT IN"))
(*) The subquery must be part of a SELECT statement. The current
condition also excludes multi-table update statements.
(*) The subquery must be part of a SELECT or CREATE TABLE ... SELECT statement.
The current condition also excludes multi-table update statements.
A note about prepared statements: we want the if-branch to be taken on
PREPARE and each EXECUTE. The rewrites are only done once, but we need
select_lex->sj_subselects list to be populated for every EXECUTE.
@ -278,7 +278,8 @@ bool is_materialization_applicable(THD *thd, Item_in_subselect *in_subs,
if (optimizer_flag(thd, OPTIMIZER_SWITCH_MATERIALIZATION) && // 0
!child_select->is_part_of_union() && // 1
parent_unit->first_select()->leaf_tables.elements && // 2
thd->lex->sql_command == SQLCOM_SELECT && // *
(thd->lex->sql_command == SQLCOM_SELECT || // *
thd->lex->sql_command == SQLCOM_CREATE_TABLE) && // *
child_select->outer_select()->leaf_tables.elements && // 2A
subquery_types_allow_materialization(in_subs) &&
(in_subs->is_top_level_item() || //3
@ -3184,6 +3185,7 @@ bool setup_sj_materialization_part1(JOIN_TAB *sjm_tab)
sjm->sjm_table_cols.push_back(*p_item);
sjm->sjm_table_param.field_count= subq_select->item_list.elements;
sjm->sjm_table_param.force_not_null_cols= TRUE;
if (!(sjm->table= create_tmp_table(thd, &sjm->sjm_table_param,
sjm->sjm_table_cols, (ORDER*) 0,

6
sql/sql_class.cc
View File

@ -3434,6 +3434,11 @@ int select_materialize_with_stats::send_data(List<Item> &items)
if ((res= select_union::send_data(items)))
return res;
if (table->null_catch_flags & REJECT_ROW_DUE_TO_NULL_FIELDS)
{
table->null_catch_flags&= ~REJECT_ROW_DUE_TO_NULL_FIELDS;
return 0;
}
/* Skip duplicate rows. */
if (write_err == HA_ERR_FOUND_DUPP_KEY ||
write_err == HA_ERR_FOUND_DUPP_UNIQUE)
@ -3475,6 +3480,7 @@ void TMP_TABLE_PARAM::init()
precomputed_group_by= 0;
bit_fields_as_long= 0;
materialized_subquery= 0;
force_not_null_cols= 0;
skip_create_table= 0;
DBUG_VOID_RETURN;
}

5
sql/sql_class.h
View File

@ -3458,6 +3458,8 @@ public:
bool schema_table;
/* TRUE if the temp table is created for subquery materialization. */
bool materialized_subquery;
/* TRUE if all columns of the table are guaranteed to be non-nullable */
bool force_not_null_cols;
/*
True if GROUP BY and its aggregate functions are already computed
by a table access method (e.g. by loose index scan). In this case
@ -3481,7 +3483,8 @@ public:
TMP_TABLE_PARAM()
:copy_field(0), group_parts(0),
group_length(0), group_null_parts(0), convert_blob_length(0),
schema_table(0), materialized_subquery(0), precomputed_group_by(0),
schema_table(0), materialized_subquery(0), force_not_null_cols(0),
precomputed_group_by(0),
force_copy_fields(0), bit_fields_as_long(0), skip_create_table(0)
{}
~TMP_TABLE_PARAM()

54
sql/sql_select.cc
View File

@ -126,7 +126,7 @@ static int return_zero_rows(JOIN *join, select_result *res,
List<TABLE_LIST> &tables,
List<Item> &fields, bool send_row,
ulonglong select_options, const char *info,
Item *having);
Item *having, List<Item> &all_fields);
static COND *build_equal_items(THD *thd, COND *cond,
COND_EQUAL *inherited,
List<TABLE_LIST> *join_list,
@ -2201,6 +2201,15 @@ JOIN::exec()
!exec_const_cond->val_int())
zero_result_cause= "Impossible WHERE noticed after reading const tables";
/*
We've called exec_const_cond->val_int(). This may have caused an error.
*/
if (thd->is_error())
{
error= thd->is_error();
DBUG_VOID_RETURN;
}
if (zero_result_cause)
{
(void) return_zero_rows(this, result, select_lex->leaf_tables,
@ -2208,7 +2217,7 @@ JOIN::exec()
send_row_on_empty_set(),
select_options,
zero_result_cause,
having ? having : tmp_having);
having ? having : tmp_having, all_fields);
DBUG_VOID_RETURN;
}
@ -3784,15 +3793,18 @@ merge_key_fields(KEY_FIELD *start,KEY_FIELD *new_fields,KEY_FIELD *end,
{
/* field = expression OR field IS NULL */
old->level= and_level;
old->optimize= KEY_OPTIMIZE_REF_OR_NULL;
if (old->field->maybe_null())
{
old->optimize= KEY_OPTIMIZE_REF_OR_NULL;
/* The referred expression can be NULL: */
old->null_rejecting= 0;
}
/*
Remember the NOT NULL value unless the value does not depend
on other tables.
*/
if (!old->val->used_tables() && old->val->is_null())
old->val= new_fields->val;
/* The referred expression can be NULL: */
old->null_rejecting= 0;
}
else
{
@ -10566,7 +10578,7 @@ ORDER *simple_remove_const(ORDER *order, COND *where)
static int
return_zero_rows(JOIN *join, select_result *result, List<TABLE_LIST> &tables,
List<Item> &fields, bool send_row, ulonglong select_options,
const char *info, Item *having)
const char *info, Item *having, List<Item> &all_fields)
{
DBUG_ENTER("return_zero_rows");
@ -10596,9 +10608,15 @@ return_zero_rows(JOIN *join, select_result *result, List<TABLE_LIST> &tables,
if (!table->is_jtbm())
mark_as_null_row(table->table); // All fields are NULL
}
if (having &&
!having->walk(&Item::clear_sum_processor, FALSE, NULL) &&
having->val_int() == 0)
List_iterator_fast<Item> it(all_fields);
Item *item;
/*
Inform all items (especially aggregating) to calculate HAVING correctly,
also we will need it for sending results.
*/
while ((item= it++))
item->no_rows_in_result();
if (having && having->val_int() == 0)
send_row=0;
}
if (!(result->send_result_set_metadata(fields,
@ -10606,13 +10624,7 @@ return_zero_rows(JOIN *join, select_result *result, List<TABLE_LIST> &tables,
{
bool send_error= FALSE;
if (send_row)
{
List_iterator_fast<Item> it(fields);
Item *item;
while ((item= it++))
item->no_rows_in_result();
send_error= result->send_data(fields) > 0;
}
if (!send_error)
result->send_eof(); // Should be safe
}
@ -12400,6 +12412,7 @@ simplify_joins(JOIN *join, List<TABLE_LIST> *join_list, COND *conds, bool top,
tbl->table->maybe_null= FALSE;
tbl->join_list= table->join_list;
repl_list.push_back(tbl);
tbl->dep_tables|= table->dep_tables;
}
li.replace(repl_list);
/* Need to update the name resolution table chain when flattening joins */
@ -13819,6 +13832,7 @@ create_tmp_table(THD *thd, TMP_TABLE_PARAM *param, List<Item> &fields,
table->merge_keys.init();
table->intersect_keys.init();
table->keys_in_use_for_query.init();
table->no_rows_with_nulls= param->force_not_null_cols;
table->s= share;
init_tmp_table_share(thd, share, "", 0, tmpname, tmpname);
@ -13900,6 +13914,11 @@ create_tmp_table(THD *thd, TMP_TABLE_PARAM *param, List<Item> &fields,
thd->mem_root= mem_root_save;
arg= sum_item->set_arg(i, thd, new Item_field(new_field));
thd->mem_root= &table->mem_root;
if (param->force_not_null_cols)
{
new_field->flags|= NOT_NULL_FLAG;
new_field->null_ptr= NULL;
}
if (!(new_field->flags & NOT_NULL_FLAG))
{
null_count++;
@ -13975,6 +13994,11 @@ create_tmp_table(THD *thd, TMP_TABLE_PARAM *param, List<Item> &fields,
agg_item->result_field= new_field;
}
tmp_from_field++;
if (param->force_not_null_cols)
{
new_field->flags|= NOT_NULL_FLAG;
new_field->null_ptr= NULL;
}
reclength+=new_field->pack_length();
if (!(new_field->flags & NOT_NULL_FLAG))
null_count++;

8
sql/sql_union.cc
View File

@ -59,9 +59,17 @@ int select_union::send_data(List<Item> &values)
unit->offset_limit_cnt--;
return 0;
}
if (table->no_rows_with_nulls)
table->null_catch_flags= CHECK_ROW_FOR_NULLS_TO_REJECT;
fill_record(thd, table->field, values, TRUE, FALSE);
if (thd->is_error())
return 1;
if (table->no_rows_with_nulls)
{
table->null_catch_flags&= ~CHECK_ROW_FOR_NULLS_TO_REJECT;
if (table->null_catch_flags)
return 0;
}
if ((write_err= table->file->ha_write_tmp_row(table->record[0])))
{

23
sql/table.h
View File

@ -906,6 +906,9 @@ enum index_hint_type
INDEX_HINT_FORCE
};
#define CHECK_ROW_FOR_NULLS_TO_REJECT (1 << 0)
#define REJECT_ROW_DUE_TO_NULL_FIELDS (1 << 1)
struct TABLE
{
TABLE() {} /* Remove gcc warning */
@ -1054,6 +1057,26 @@ public:
NULL, including columns declared as "not null" (see maybe_null).
*/
bool null_row;
/*
No rows that contain null values can be placed into this table.
Currently this flag can be set to true only for a temporary table
that used to store the result of materialization of a subquery.
*/
bool no_rows_with_nulls;
/*
This field can contain two bit flags:
CHECK_ROW_FOR_NULLS_TO_REJECT
REJECT_ROW_DUE_TO_NULL_FIELDS
The first flag is set for the dynamic contexts where it is prohibited
to write any null into the table.
The second flag is set only if the first flag is set on.
The informs the outer scope that there was an attept to write null
into a field of the table in the context where it is prohibited.
This flag should be set off as soon as the first flag is set on.
Currently these flags are used only the tables tno_rows_with_nulls set
to true.
*/
uint8 null_catch_flags;
/*
TODO: Each of the following flags take up 8 bits. They can just as easily

9
storage/maria/ha_maria.cc
View File

@ -1017,8 +1017,11 @@ double ha_maria::scan_time()
splitting algorithms depends on this. (With only one key on a page
we also can't use any compression, which may make the index file much
larger)
We use HA_MAX_KEY_BUFF as this is a stack restriction imposed by the
handler interface.
We use HA_MAX_KEY_LENGTH as this is a stack restriction imposed by the
handler interface. If we want to increase this, we have also to
increase HA_MARIA_KEY_BUFF and MARIA_MAX_KEY_BUFF as the buffer needs
to take be able to store the extra lenght bytes that is part of the stored
key.
We also need to reserve place for a record pointer (8) and 3 bytes
per key segment to store the length of the segment + possible null bytes.
@ -3022,7 +3025,7 @@ void ha_maria::get_auto_increment(ulonglong offset, ulonglong increment,
{
ulonglong nr;
int error;
uchar key[HA_MAX_KEY_LENGTH];
uchar key[MARIA_MAX_KEY_BUFF];
if (!table->s->next_number_key_offset)
{ // Autoincrement at key-start

2
storage/maria/ma_info.c
View File

@ -31,7 +31,7 @@ MARIA_RECORD_POS maria_position(MARIA_HA *info)
uint maria_max_key_length()
{
uint tmp= (_ma_max_key_length() - 8 - HA_MAX_KEY_SEG*3);
return min(HA_MAX_KEY_BUFF, tmp);
return min(HA_MAX_KEY_LENGTH, tmp);
}
/* Get information about the table */

2
storage/maria/ma_key_recover.c
View File

@ -1107,7 +1107,7 @@ uint _ma_apply_redo_index(MARIA_HA *info,
DBUG_PRINT("redo", ("org_page_length: %u new_page_length: %u",
uint2korr(header), uint2korr(header+2)));
DBUG_ASSERT(uint2korr(header) == page_length);
new_page_length= uint2korr(header+2);
new_page_length= min(uint2korr(header+2), max_page_size);
header+= 4;
break;
case KEY_OP_MAX_PAGELENGTH:

12
storage/maria/ma_open.c
View File

@ -1714,9 +1714,11 @@ my_bool _ma_columndef_write(File file, MARIA_COLUMNDEF *columndef)
{
uchar buff[MARIA_COLUMNDEF_SIZE];
uchar *ptr=buff;
uint low_offset= (uint) (columndef->offset & 0xffff);
uint high_offset= (uint) (columndef->offset >> 16);
mi_int2store(ptr,(ulong) columndef->column_nr); ptr+= 2;
mi_int2store(ptr,(ulong) columndef->offset); ptr+= 2;
mi_int2store(ptr, low_offset); ptr+= 2;
mi_int2store(ptr,columndef->type); ptr+= 2;
mi_int2store(ptr,columndef->length); ptr+= 2;
mi_int2store(ptr,columndef->fill_length); ptr+= 2;
@ -1725,12 +1727,14 @@ my_bool _ma_columndef_write(File file, MARIA_COLUMNDEF *columndef)
(*ptr++)= columndef->null_bit;
(*ptr++)= columndef->empty_bit;
ptr[0]= ptr[1]= ptr[2]= ptr[3]= 0; ptr+= 4; /* For future */
mi_int2store(ptr, high_offset); ptr+= 2;
ptr[0]= ptr[1]= 0; ptr+= 2; /* For future */
return mysql_file_write(file, buff, (size_t) (ptr-buff), MYF(MY_NABP)) != 0;
}
uchar *_ma_columndef_read(uchar *ptr, MARIA_COLUMNDEF *columndef)
{
uint high_offset;
columndef->column_nr= mi_uint2korr(ptr); ptr+= 2;
columndef->offset= mi_uint2korr(ptr); ptr+= 2;
columndef->type= mi_sint2korr(ptr); ptr+= 2;
@ -1740,7 +1744,9 @@ uchar *_ma_columndef_read(uchar *ptr, MARIA_COLUMNDEF *columndef)
columndef->empty_pos= mi_uint2korr(ptr); ptr+= 2;
columndef->null_bit= (uint8) *ptr++;
columndef->empty_bit= (uint8) *ptr++;
ptr+= 4;
high_offset= mi_uint2korr(ptr); ptr+= 2;
columndef->offset|= ((ulong) high_offset << 16);
ptr+= 2;
return ptr;
}

4
storage/maria/ma_search.c
View File

@ -1379,6 +1379,10 @@ uint _ma_get_binary_pack_key(MARIA_KEY *int_key, uint page_flag, uint nod_flag,
memcpy(key, from, length + nod_flag);
*page_pos= from + length + nod_flag;
#ifdef USEFUL_FOR_DEBUGGING
DBUG_DUMP("key", int_key->data,
(uint) (int_key->data_length + int_key->ref_length));
#endif
DBUG_RETURN(int_key->data_length + int_key->ref_length);
}

2
storage/maria/ma_write.c
View File

@ -723,6 +723,8 @@ static int w_search(register MARIA_HA *info, uint32 comp_flag, MARIA_KEY *key,
{
error= _ma_insert(info, key, &page, keypos, keybuff,
father_page, father_keypos, insert_last);
if (error < 0)
goto err;
page_mark_changed(info, &page);
if (_ma_write_keypage(&page, PAGECACHE_LOCK_LEFT_WRITELOCKED,
DFLT_INIT_HITS))