mirror of
https://github.com/MariaDB/server.git
synced 2025-07-30 16:24:05 +03:00
Merge remote-tracking branch '10.4' into 10.5
This commit is contained in:
Oleksandr Byelkin
@ -122,27 +122,27 @@ ROW(1,2,3) > (SELECT 1,2,1)
|
||||
SELECT ROW(1,2,3) = (SELECT 1,2,NULL);
|
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ROW(1,2,3) = (SELECT 1,2,NULL)
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||||
NULL
|
||||
SELECT (SELECT 1.5,2,'a') = ROW(1.5,2,'a');
|
||||
(SELECT 1.5,2,'a') = ROW(1.5,2,'a')
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||||
SELECT (SELECT 1.5,2,'a') = ROW(1.5,2,'a') AS m;
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m
|
||||
1
|
||||
SELECT (SELECT 1.5,2,'a') = ROW(1.5,2,'b');
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(SELECT 1.5,2,'a') = ROW(1.5,2,'b')
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||||
SELECT (SELECT 1.5,2,'a') = ROW(1.5,2,'b') AS m;
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m
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0
|
||||
SELECT (SELECT 1.5,2,'a') = ROW('1.5b',2,'b');
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(SELECT 1.5,2,'a') = ROW('1.5b',2,'b')
|
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SELECT (SELECT 1.5,2,'a') = ROW('1.5b',2,'b') AS m;
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m
|
||||
0
|
||||
Warnings:
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||||
Warning 1292 Truncated incorrect DOUBLE value: '1.5b'
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SELECT (SELECT 'b',2,'a') = ROW(1.5,2,'a');
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(SELECT 'b',2,'a') = ROW(1.5,2,'a')
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SELECT (SELECT 'b',2,'a') = ROW(1.5,2,'a') AS m;
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||||
m
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||||
0
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||||
Warnings:
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Warning 1292 Truncated incorrect DOUBLE value: 'b'
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||||
SELECT (SELECT 1.5,2,'a') = ROW(1.5,'2','a');
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(SELECT 1.5,2,'a') = ROW(1.5,'2','a')
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SELECT (SELECT 1.5,2,'a') = ROW(1.5,'2','a') AS m;
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m
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||||
1
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||||
SELECT (SELECT 1.5,'c','a') = ROW(1.5,2,'a');
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(SELECT 1.5,'c','a') = ROW(1.5,2,'a')
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SELECT (SELECT 1.5,'c','a') = ROW(1.5,2,'a') AS m;
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m
|
||||
0
|
||||
Warnings:
|
||||
Warning 1292 Truncated incorrect DECIMAL value: 'c'
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||||
@ -232,19 +232,26 @@ a
|
||||
2
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select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3 where t3.a < t1.a) order by 1 desc limit 1);
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a
|
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select b,(select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2) from t4;
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b (select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2)
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select
|
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b,
|
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(select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2) as m
|
||||
from t4;
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b m
|
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8 7.5000
|
||||
8 4.5000
|
||||
9 7.5000
|
||||
explain extended select b,(select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2) from t4;
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||||
explain extended
|
||||
select
|
||||
b,
|
||||
(select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2) as m
|
||||
from t4;
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||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 PRIMARY t4 ALL NULL NULL NULL NULL 3 100.00
|
||||
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 100.00
|
||||
3 DEPENDENT SUBQUERY t3 ALL NULL NULL NULL NULL 3 100.00 Using where
|
||||
Warnings:
|
||||
Note 1276 Field or reference 'test.t4.a' of SELECT #3 was resolved in SELECT #1
|
||||
Note 1003 /* select#1 */ select `test`.`t4`.`b` AS `b`,<expr_cache><`test`.`t4`.`a`>((/* select#2 */ select avg(`test`.`t2`.`a` + (/* select#3 */ select min(`test`.`t3`.`a`) from `test`.`t3` where `test`.`t3`.`a` >= `test`.`t4`.`a`)) from `test`.`t2`)) AS `(select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2)` from `test`.`t4`
|
||||
Note 1003 /* select#1 */ select `test`.`t4`.`b` AS `b`,<expr_cache><`test`.`t4`.`a`>((/* select#2 */ select avg(`test`.`t2`.`a` + (/* select#3 */ select min(`test`.`t3`.`a`) from `test`.`t3` where `test`.`t3`.`a` >= `test`.`t4`.`a`)) from `test`.`t2`)) AS `m` from `test`.`t4`
|
||||
select * from t3 where exists (select * from t2 where t2.b=t3.a);
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||||
a
|
||||
7
|
||||
@ -311,21 +318,34 @@ select b,max(a) as ma from t4 group by b having b >= (select max(t2.a) from t2 w
|
||||
b ma
|
||||
7 12
|
||||
create table t5 (a int);
|
||||
select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2;
|
||||
(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) a
|
||||
select
|
||||
(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) as m,
|
||||
a
|
||||
from t2;
|
||||
m a
|
||||
NULL 1
|
||||
2 2
|
||||
insert into t5 values (5);
|
||||
select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2;
|
||||
(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) a
|
||||
select
|
||||
(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) as m,
|
||||
a
|
||||
from t2;
|
||||
m a
|
||||
NULL 1
|
||||
2 2
|
||||
insert into t5 values (2);
|
||||
select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2;
|
||||
(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) a
|
||||
select
|
||||
(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) as m,
|
||||
a
|
||||
from t2;
|
||||
m a
|
||||
NULL 1
|
||||
2 2
|
||||
explain extended select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2;
|
||||
explain extended
|
||||
select
|
||||
(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) as m,
|
||||
a
|
||||
from t2;
|
||||
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
|
||||
2 DEPENDENT SUBQUERY t1 system NULL NULL NULL NULL 1 100.00
|
||||
@ -334,7 +354,7 @@ NULL UNION RESULT <union2,3> ALL NULL NULL NULL NULL NULL NULL
|
||||
Warnings:
|
||||
Note 1276 Field or reference 'test.t2.a' of SELECT #2 was resolved in SELECT #1
|
||||
Note 1276 Field or reference 'test.t2.a' of SELECT #3 was resolved in SELECT #1
|
||||
Note 1003 /* select#1 */ select <expr_cache><`test`.`t2`.`a`>((/* select#2 */ select 2 from dual where 2 = `test`.`t2`.`a` union /* select#3 */ select `test`.`t5`.`a` from `test`.`t5` where `test`.`t5`.`a` = `test`.`t2`.`a`)) AS `(select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a)`,`test`.`t2`.`a` AS `a` from `test`.`t2`
|
||||
Note 1003 /* select#1 */ select <expr_cache><`test`.`t2`.`a`>((/* select#2 */ select 2 from dual where 2 = `test`.`t2`.`a` union /* select#3 */ select `test`.`t5`.`a` from `test`.`t5` where `test`.`t5`.`a` = `test`.`t2`.`a`)) AS `m`,`test`.`t2`.`a` AS `a` from `test`.`t2`
|
||||
select (select a from t1 where t1.a=t2.a union all select a from t5 where t5.a=t2.a), a from t2;
|
||||
ERROR 21000: Subquery returns more than 1 row
|
||||
create table t6 (patient_uq int, clinic_uq int, index i1 (clinic_uq));
|
||||
@ -490,8 +510,11 @@ SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic HAVING t
|
||||
mot topic date pseudo
|
||||
joce 40143 2002-10-22 joce
|
||||
joce 43506 2002-10-22 joce
|
||||
SELECT *, topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100) from t2;
|
||||
mot topic date pseudo topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100)
|
||||
SELECT
|
||||
*,
|
||||
topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100) AS m
|
||||
FROM t2;
|
||||
mot topic date pseudo m
|
||||
joce 40143 2002-10-22 joce 1
|
||||
joce 43506 2002-10-22 joce 1
|
||||
SELECT * from t2 where topic = all (SELECT SUM(topic) FROM t2);
|
||||
@ -509,8 +532,11 @@ joce 40143 2002-10-22 joce
|
||||
SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000);
|
||||
mot topic date pseudo
|
||||
joce 40143 2002-10-22 joce
|
||||
SELECT *, topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000) from t2;
|
||||
mot topic date pseudo topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000)
|
||||
SELECT
|
||||
*,
|
||||
topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000) AS m
|
||||
FROM t2;
|
||||
mot topic date pseudo m
|
||||
joce 40143 2002-10-22 joce 1
|
||||
joce 43506 2002-10-22 joce 0
|
||||
drop table t1,t2;
|
||||
@ -883,6 +909,25 @@ NULL
|
||||
select 1.5 > ANY (SELECT * from t1);
|
||||
1.5 > ANY (SELECT * from t1)
|
||||
NULL
|
||||
update t1 set a=NULL where a=2.5;
|
||||
select 1.5 IN (SELECT * from t1);
|
||||
1.5 IN (SELECT * from t1)
|
||||
1
|
||||
select 3.5 IN (SELECT * from t1);
|
||||
3.5 IN (SELECT * from t1)
|
||||
1
|
||||
select 10.5 IN (SELECT * from t1);
|
||||
10.5 IN (SELECT * from t1)
|
||||
NULL
|
||||
select 1.5 > ALL (SELECT * from t1);
|
||||
1.5 > ALL (SELECT * from t1)
|
||||
0
|
||||
select 10.5 > ALL (SELECT * from t1);
|
||||
10.5 > ALL (SELECT * from t1)
|
||||
NULL
|
||||
select 1.5 > ANY (SELECT * from t1);
|
||||
1.5 > ANY (SELECT * from t1)
|
||||
NULL
|
||||
select 10.5 > ANY (SELECT * from t1);
|
||||
10.5 > ANY (SELECT * from t1)
|
||||
1
|
||||
@ -893,6 +938,20 @@ Warnings:
|
||||
Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
|
||||
Note 1249 Select 2 was reduced during optimization
|
||||
Note 1003 select `test`.`t1`.`a` + 1 AS `(select a+1)` from `test`.`t1`
|
||||
explain extended select (select a+1) from t1;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00
|
||||
Warnings:
|
||||
Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
|
||||
Note 1249 Select 2 was reduced during optimization
|
||||
Note 1003 select `test`.`t1`.`a` + 1 AS `(select a+1)` from `test`.`t1`
|
||||
explain extended select (select a+1) from t1;
|
||||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||||
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 100.00
|
||||
Warnings:
|
||||
Note 1276 Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
|
||||
Note 1249 Select 2 was reduced during optimization
|
||||
Note 1003 select `test`.`t1`.`a` + 1 AS `(select a+1)` from `test`.`t1`
|
||||
select (select a+1) from t1;
|
||||
(select a+1)
|
||||
2.5
|
||||
@ -1534,8 +1593,8 @@ create table t3 (a int, b int);
|
||||
insert into t1 values (0,100),(1,2), (1,3), (2,2), (2,7), (2,-1), (3,10);
|
||||
insert into t2 values (0,0), (1,1), (2,1), (3,1), (4,1);
|
||||
insert into t3 values (3,3), (2,2), (1,1);
|
||||
select a,(select count(distinct t1.b) as sum from t1,t2 where t1.a=t2.a and t2.b > 0 and t1.a <= t3.b group by t1.a order by sum limit 1) from t3;
|
||||
a (select count(distinct t1.b) as sum from t1,t2 where t1.a=t2.a and t2.b > 0 and t1.a <= t3.b group by t1.a order by sum limit 1)
|
||||
select a,(select count(distinct t1.b) as sum from t1,t2 where t1.a=t2.a and t2.b > 0 and t1.a <= t3.b group by t1.a order by sum limit 1) as m from t3;
|
||||
a m
|
||||
3 1
|
||||
2 2
|
||||
1 2
|
||||
@ -1730,8 +1789,8 @@ CREATE TABLE `t3` (`taskgenid` mediumint(9) NOT NULL auto_increment,`dbid` int(1
|
||||
INSERT INTO `t3` (`taskgenid`, `dbid`, `taskid`, `mon`, `tues`,`wed`, `thur`, `fri`, `sat`, `sun`, `how_often`, `userid`, `active`) VALUES (1,-1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 1);
|
||||
CREATE TABLE `t4` (`task_id` smallint(6) NOT NULL default '0',`description` varchar(200) NOT NULL default '') ENGINE=MyISAM CHARSET=latin1;
|
||||
INSERT INTO `t4` (`task_id`, `description`) VALUES (1, 'Daily Check List'),(2, 'Weekly Status');
|
||||
select dbid, name, (date_format(now() , '%Y-%m-%d') - INTERVAL how_often DAY) >= ifnull((SELECT date_format(max(create_date),'%Y-%m-%d') FROM t1 WHERE dbid = b.db_id AND taskid = a.taskgenid), '1950-01-01') from t3 a, t2 b, t4 WHERE dbid = - 1 AND primary_uid = '1' AND t4.task_id = taskid;
|
||||
dbid name (date_format(now() , '%Y-%m-%d') - INTERVAL how_often DAY) >= ifnull((SELECT date_format(max(create_date),'%Y-%m-%d') FROM t1 WHERE dbid = b.db_id AND taskid = a.taskgenid), '1950-01-01')
|
||||
select dbid, name, (date_format(now() , '%Y-%m-%d') - INTERVAL how_often DAY) >= ifnull((SELECT date_format(max(create_date),'%Y-%m-%d') as m FROM t1 WHERE dbid = b.db_id AND taskid = a.taskgenid), '1950-01-01') as m from t3 a, t2 b, t4 WHERE dbid = - 1 AND primary_uid = '1' AND t4.task_id = taskid;
|
||||
dbid name m
|
||||
-1 Valid 1
|
||||
-1 Valid 2 1
|
||||
-1 Should Not Return 0
|
||||
@ -3785,9 +3844,10 @@ SELECT (SELECT COUNT(DISTINCT t1.b) from t2) FROM t1 GROUP BY t1.a;
|
||||
2
|
||||
1
|
||||
1
|
||||
SELECT (SELECT COUNT(DISTINCT t1.b) from t2 union select 1 from t2 where 12 < 3)
|
||||
SELECT
|
||||
(SELECT COUNT(DISTINCT t1.b) from t2 union select 1 from t2 where 12 < 3) AS m
|
||||
FROM t1 GROUP BY t1.a;
|
||||
(SELECT COUNT(DISTINCT t1.b) from t2 union select 1 from t2 where 12 < 3)
|
||||
m
|
||||
2
|
||||
1
|
||||
1
|
||||
@ -3797,9 +3857,9 @@ COUNT(DISTINCT t1.b) (SELECT COUNT(DISTINCT t1.b))
|
||||
1 1
|
||||
1 1
|
||||
SELECT COUNT(DISTINCT t1.b),
|
||||
(SELECT COUNT(DISTINCT t1.b) union select 1 from DUAL where 12 < 3)
|
||||
(SELECT COUNT(DISTINCT t1.b) union select 1 from DUAL where 12 < 3) AS m
|
||||
FROM t1 GROUP BY t1.a;
|
||||
COUNT(DISTINCT t1.b) (SELECT COUNT(DISTINCT t1.b) union select 1 from DUAL where 12 < 3)
|
||||
COUNT(DISTINCT t1.b) m
|
||||
2 2
|
||||
1 1
|
||||
1 1
|
||||
@ -3823,16 +3883,10 @@ SELECT (
|
||||
SELECT COUNT(DISTINCT t1.b)
|
||||
)
|
||||
)
|
||||
FROM t1 GROUP BY t1.a LIMIT 1)
|
||||
FROM t1 GROUP BY t1.a LIMIT 1) AS m
|
||||
FROM t1 t2
|
||||
GROUP BY t2.a;
|
||||
(
|
||||
SELECT (
|
||||
SELECT (
|
||||
SELECT COUNT(DISTINCT t1.b)
|
||||
)
|
||||
)
|
||||
FROM t1 GROUP BY t1.a LIMIT 1)
|
||||
m
|
||||
2
|
||||
2
|
||||
2
|
||||
@ -6423,11 +6477,10 @@ CREATE TABLE t3 (a int, b int);
|
||||
INSERT INTO t3 VALUES (10,7), (0,7);
|
||||
SELECT SUM(DISTINCT b),
|
||||
(SELECT t2.a FROM t1 JOIN t2 ON t2.c != 0
|
||||
WHERE t.a != 0 AND t2.a != 0)
|
||||
WHERE t.a != 0 AND t2.a != 0) AS m
|
||||
FROM (SELECT * FROM t3) AS t
|
||||
GROUP BY 2;
|
||||
SUM(DISTINCT b) (SELECT t2.a FROM t1 JOIN t2 ON t2.c != 0
|
||||
WHERE t.a != 0 AND t2.a != 0)
|
||||
SUM(DISTINCT b) m
|
||||
7 NULL
|
||||
SELECT SUM(DISTINCT b),
|
||||
(SELECT t2.a FROM t1,t2 WHERE t.a != 0 or 1=2 LIMIT 1)
|
||||
@ -6560,66 +6613,93 @@ CREATE TABLE t3 (f3a int default 1, f3b int default 2);
|
||||
INSERT INTO t3 VALUES (1,1),(2,2);
|
||||
set @old_optimizer_switch = @@session.optimizer_switch;
|
||||
set @@optimizer_switch='materialization=on,partial_match_rowid_merge=on,partial_match_table_scan=off,subquery_cache=off,semijoin=off';
|
||||
SELECT (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) FROM t2;
|
||||
(SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1)
|
||||
SELECT
|
||||
(SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) AS m
|
||||
FROM t2;
|
||||
m
|
||||
NULL
|
||||
NULL
|
||||
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) FROM t2;
|
||||
(SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1)
|
||||
SELECT
|
||||
(SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) AS m
|
||||
FROM t2;
|
||||
m
|
||||
NULL
|
||||
NULL
|
||||
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) FROM t2;
|
||||
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
|
||||
SELECT
|
||||
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) AS m
|
||||
FROM t2;
|
||||
m
|
||||
NULL
|
||||
NULL
|
||||
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1);
|
||||
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
|
||||
SELECT
|
||||
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) AS m;
|
||||
m
|
||||
NULL
|
||||
SELECT (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2;
|
||||
(SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1)
|
||||
SELECT
|
||||
(SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) AS m
|
||||
FROM t2;
|
||||
m
|
||||
NULL
|
||||
NULL
|
||||
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) FROM t2;
|
||||
(SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1)
|
||||
SELECT
|
||||
(SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) AS m
|
||||
FROM t2;
|
||||
m
|
||||
NULL
|
||||
NULL
|
||||
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) FROM t2;
|
||||
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
|
||||
SELECT
|
||||
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) AS m
|
||||
FROM t2;
|
||||
m
|
||||
NULL
|
||||
NULL
|
||||
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1);
|
||||
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
|
||||
SELECT
|
||||
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) AS m;
|
||||
m
|
||||
NULL
|
||||
set @@session.optimizer_switch=@old_optimizer_switch;
|
||||
SELECT (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) FROM t2;
|
||||
(SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1)
|
||||
SELECT
|
||||
(SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) AS m
|
||||
FROM t2;
|
||||
m
|
||||
NULL
|
||||
NULL
|
||||
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) FROM t2;
|
||||
(SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1)
|
||||
SELECT
|
||||
(SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) AS m
|
||||
FROM t2;
|
||||
m
|
||||
NULL
|
||||
NULL
|
||||
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) FROM t2;
|
||||
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
|
||||
SELECT
|
||||
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) AS m
|
||||
FROM t2;
|
||||
m
|
||||
NULL
|
||||
NULL
|
||||
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1);
|
||||
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1)
|
||||
SELECT
|
||||
(SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) AS m;
|
||||
m
|
||||
NULL
|
||||
SELECT (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2;
|
||||
SELECT
|
||||
(SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2 AS m;
|
||||
(SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1)
|
||||
NULL
|
||||
NULL
|
||||
SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) FROM t2;
|
||||
(SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1)
|
||||
SELECT
|
||||
(SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) AS m
|
||||
FROM t2;
|
||||
m
|
||||
NULL
|
||||
NULL
|
||||
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) FROM t2;
|
||||
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
|
||||
SELECT
|
||||
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) AS m
|
||||
FROM t2;
|
||||
m
|
||||
NULL
|
||||
NULL
|
||||
SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1);
|
||||
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1)
|
||||
SELECT
|
||||
(SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) AS m;
|
||||
m
|
||||
NULL
|
||||
select (null, null) = (null, null);
|
||||
(null, null) = (null, null)
|
||||
@ -6665,8 +6745,10 @@ INSERT INTO t2 VALUES (1);
|
||||
CREATE TABLE t3 ( c INT );
|
||||
INSERT INTO t3 VALUES (4),(5);
|
||||
SET optimizer_switch='subquery_cache=off';
|
||||
SELECT ( SELECT b FROM t2 WHERE b = a OR EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
|
||||
( SELECT b FROM t2 WHERE b = a OR EXISTS ( SELECT c FROM t3 WHERE c = b ) )
|
||||
SELECT
|
||||
( SELECT b FROM t2 WHERE b = a OR EXISTS ( SELECT c FROM t3 WHERE c = b ) ) AS m
|
||||
FROM t1;
|
||||
m
|
||||
1
|
||||
NULL
|
||||
SELECT ( SELECT b FROM t2 WHERE b = a OR b * 0) FROM t1;
|
||||
@ -6883,7 +6965,9 @@ CREATE TABLE t3 (c INT);
|
||||
INSERT INTO t3 VALUES (8),(3);
|
||||
set @@expensive_subquery_limit= 0;
|
||||
EXPLAIN
|
||||
SELECT (SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
|
||||
SELECT
|
||||
(SELECT MIN(b) FROM t1, t2
|
||||
WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3))) AS m
|
||||
FROM t2 alias1, t1 alias2, t1 alias3;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY alias1 ALL NULL NULL NULL NULL 2
|
||||
@ -6893,9 +6977,11 @@ id select_type table type possible_keys key key_len ref rows Extra
|
||||
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
|
||||
3 SUBQUERY t3 ALL NULL NULL NULL NULL 2
|
||||
flush status;
|
||||
SELECT (SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
|
||||
SELECT
|
||||
(SELECT MIN(b) FROM t1, t2
|
||||
WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3))) AS m
|
||||
FROM t2 alias1, t1 alias2, t1 alias3;
|
||||
(SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
|
||||
m
|
||||
NULL
|
||||
NULL
|
||||
NULL
|
||||
@ -6921,7 +7007,9 @@ Handler_read_rnd_deleted 0
|
||||
Handler_read_rnd_next 22
|
||||
set @@expensive_subquery_limit= default;
|
||||
EXPLAIN
|
||||
SELECT (SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
|
||||
SELECT
|
||||
(SELECT MIN(b) FROM t1, t2
|
||||
WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3))) AS m
|
||||
FROM t2 alias1, t1 alias2, t1 alias3;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 PRIMARY alias1 ALL NULL NULL NULL NULL 2
|
||||
@ -6931,9 +7019,11 @@ id select_type table type possible_keys key key_len ref rows Extra
|
||||
2 SUBQUERY t2 ALL NULL NULL NULL NULL 2 Using where; Using join buffer (flat, BNL join)
|
||||
3 SUBQUERY t3 ALL NULL NULL NULL NULL 2
|
||||
flush status;
|
||||
SELECT (SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
|
||||
SELECT
|
||||
(SELECT MIN(b) FROM t1, t2
|
||||
WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3))) AS m
|
||||
FROM t2 alias1, t1 alias2, t1 alias3;
|
||||
(SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
|
||||
m
|
||||
NULL
|
||||
NULL
|
||||
NULL
|
||||
|
||||
Reference in New Issue
Block a user