mirror of
https://github.com/MariaDB/server.git
synced 2025-01-17 20:42:30 +01:00
33cd911a16
SELECT ... WHERE ... IN (NULL, ...) does full table scan,
even if the same query without the NULL uses efficient range scan.
The bugfix for the bug 18360 introduced an optimization:
if
1) all right-hand arguments of the IN function are constants
2) result types of all right argument items are compatible
enough to use the same single comparison function to
compare all of them to the left argument,
then
we can convert the right-hand list of constant items to an array
of equally-typed constant values for the further
QUICK index access etc. (see Item_func_in::fix_length_and_dec()).
The Item_null constant item objects have STRING_RESULT
result types, so, as far as Item_func_in::fix_length_and_dec()
is aware of NULLs in the right list, this improvement efficiently
optimizes IN function calls with a mixed right list of NULLs and
string constants. However, the optimization doesn't affect mixed
lists of NULLs and integers, floats etc., because there is no
unique common comparator.
New optimization has been added to ignore the result type
of NULL constants in the static analysis of mixed right-hand lists.
This is safe, because at the execution phase we care about
presence of NULLs anyway.
1. The collect_cmp_types() function has been modified to optionally
ignore NULL constants in the item list.
2. NULL-skipping code of the Item_func_in::fix_length_and_dec()
function has been modified to work not only with in_string
vectors but with in_vectors of other types.
mysql-test/r/func_in.result:
Added test case for the bug #44139.
mysql-test/t/func_in.test:
Added test case for the bug #44139.
sql/item_cmpfunc.cc:
Bug #44139: Table scan when NULL appears in IN clause
1. The collect_cmp_types() function has been modified to optionally
ignore NULL constants in the item list.
2. NULL-skipping code of the Item_func_in::fix_length_and_dec()
function has been modified to work not only with in_string
vectors but with in_vectors of other types.
753 lines
25 KiB
Text
753 lines
25 KiB
Text
drop table if exists t1, t2;
|
||
select 1 in (1,2,3);
|
||
1 in (1,2,3)
|
||
1
|
||
select 10 in (1,2,3);
|
||
10 in (1,2,3)
|
||
0
|
||
select NULL in (1,2,3);
|
||
NULL in (1,2,3)
|
||
NULL
|
||
select 1 in (1,NULL,3);
|
||
1 in (1,NULL,3)
|
||
1
|
||
select 3 in (1,NULL,3);
|
||
3 in (1,NULL,3)
|
||
1
|
||
select 10 in (1,NULL,3);
|
||
10 in (1,NULL,3)
|
||
NULL
|
||
select 1.5 in (1.5,2.5,3.5);
|
||
1.5 in (1.5,2.5,3.5)
|
||
1
|
||
select 10.5 in (1.5,2.5,3.5);
|
||
10.5 in (1.5,2.5,3.5)
|
||
0
|
||
select NULL in (1.5,2.5,3.5);
|
||
NULL in (1.5,2.5,3.5)
|
||
NULL
|
||
select 1.5 in (1.5,NULL,3.5);
|
||
1.5 in (1.5,NULL,3.5)
|
||
1
|
||
select 3.5 in (1.5,NULL,3.5);
|
||
3.5 in (1.5,NULL,3.5)
|
||
1
|
||
select 10.5 in (1.5,NULL,3.5);
|
||
10.5 in (1.5,NULL,3.5)
|
||
NULL
|
||
CREATE TABLE t1 (a int, b int, c int);
|
||
insert into t1 values (1,2,3), (1,NULL,3);
|
||
select 1 in (a,b,c) from t1;
|
||
1 in (a,b,c)
|
||
1
|
||
1
|
||
select 3 in (a,b,c) from t1;
|
||
3 in (a,b,c)
|
||
1
|
||
1
|
||
select 10 in (a,b,c) from t1;
|
||
10 in (a,b,c)
|
||
0
|
||
NULL
|
||
select NULL in (a,b,c) from t1;
|
||
NULL in (a,b,c)
|
||
NULL
|
||
NULL
|
||
drop table t1;
|
||
CREATE TABLE t1 (a float, b float, c float);
|
||
insert into t1 values (1.5,2.5,3.5), (1.5,NULL,3.5);
|
||
select 1.5 in (a,b,c) from t1;
|
||
1.5 in (a,b,c)
|
||
1
|
||
1
|
||
select 3.5 in (a,b,c) from t1;
|
||
3.5 in (a,b,c)
|
||
1
|
||
1
|
||
select 10.5 in (a,b,c) from t1;
|
||
10.5 in (a,b,c)
|
||
0
|
||
NULL
|
||
drop table t1;
|
||
CREATE TABLE t1 (a varchar(10), b varchar(10), c varchar(10));
|
||
insert into t1 values ('A','BC','EFD'), ('A',NULL,'EFD');
|
||
select 'A' in (a,b,c) from t1;
|
||
'A' in (a,b,c)
|
||
1
|
||
1
|
||
select 'EFD' in (a,b,c) from t1;
|
||
'EFD' in (a,b,c)
|
||
1
|
||
1
|
||
select 'XSFGGHF' in (a,b,c) from t1;
|
||
'XSFGGHF' in (a,b,c)
|
||
0
|
||
NULL
|
||
drop table t1;
|
||
CREATE TABLE t1 (field char(1));
|
||
INSERT INTO t1 VALUES ('A'),(NULL);
|
||
SELECT * from t1 WHERE field IN (NULL);
|
||
field
|
||
SELECT * from t1 WHERE field NOT IN (NULL);
|
||
field
|
||
SELECT * from t1 where field = field;
|
||
field
|
||
A
|
||
SELECT * from t1 where field <=> field;
|
||
field
|
||
A
|
||
NULL
|
||
DELETE FROM t1 WHERE field NOT IN (NULL);
|
||
SELECT * FROM t1;
|
||
field
|
||
A
|
||
NULL
|
||
drop table t1;
|
||
create table t1 (id int(10) primary key);
|
||
insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9);
|
||
select * from t1 where id in (2,5,9);
|
||
id
|
||
2
|
||
5
|
||
9
|
||
drop table t1;
|
||
create table t1 (
|
||
a char(1) character set latin1 collate latin1_general_ci,
|
||
b char(1) character set latin1 collate latin1_swedish_ci,
|
||
c char(1) character set latin1 collate latin1_danish_ci
|
||
);
|
||
insert into t1 values ('A','B','C');
|
||
insert into t1 values ('a','c','c');
|
||
select * from t1 where a in (b);
|
||
ERROR HY000: Illegal mix of collations (latin1_general_ci,IMPLICIT) and (latin1_swedish_ci,IMPLICIT) for operation '='
|
||
select * from t1 where a in (b,c);
|
||
ERROR HY000: Illegal mix of collations (latin1_general_ci,IMPLICIT), (latin1_swedish_ci,IMPLICIT), (latin1_danish_ci,IMPLICIT) for operation ' IN '
|
||
select * from t1 where 'a' in (a,b,c);
|
||
ERROR HY000: Illegal mix of collations for operation ' IN '
|
||
select * from t1 where 'a' in (a);
|
||
a b c
|
||
A B C
|
||
a c c
|
||
select * from t1 where a in ('a');
|
||
a b c
|
||
A B C
|
||
a c c
|
||
select * from t1 where 'a' collate latin1_general_ci in (a,b,c);
|
||
a b c
|
||
A B C
|
||
a c c
|
||
select * from t1 where 'a' collate latin1_bin in (a,b,c);
|
||
a b c
|
||
a c c
|
||
select * from t1 where 'a' in (a,b,c collate latin1_bin);
|
||
a b c
|
||
a c c
|
||
explain extended select * from t1 where 'a' in (a,b,c collate latin1_bin);
|
||
id select_type table type possible_keys key key_len ref rows filtered Extra
|
||
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
||
Warnings:
|
||
Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t1`.`c` AS `c` from `test`.`t1` where ('a' in (`test`.`t1`.`a`,`test`.`t1`.`b`,(`test`.`t1`.`c` collate latin1_bin)))
|
||
drop table t1;
|
||
set names utf8;
|
||
create table t1 (a char(10) character set utf8 not null);
|
||
insert into t1 values ('bbbb'),(_koi8r'<27><><EFBFBD><EFBFBD>'),(_latin1'<27><><EFBFBD><EFBFBD>');
|
||
select a from t1 where a in ('bbbb',_koi8r'<27><><EFBFBD><EFBFBD>',_latin1'<27><><EFBFBD><EFBFBD>') order by a;
|
||
a
|
||
ÄÄÄÄ
|
||
bbbb
|
||
цццц
|
||
drop table t1;
|
||
create table t1 (a char(10) character set latin1 not null);
|
||
insert into t1 values ('a'),('b'),('c');
|
||
select a from t1 where a IN ('a','b','c') order by a;
|
||
a
|
||
a
|
||
b
|
||
c
|
||
drop table t1;
|
||
set names latin1;
|
||
select '1.0' in (1,2);
|
||
'1.0' in (1,2)
|
||
1
|
||
select 1 in ('1.0',2);
|
||
1 in ('1.0',2)
|
||
1
|
||
select 1 in (1,'2.0');
|
||
1 in (1,'2.0')
|
||
1
|
||
select 1 in ('1.0',2.0);
|
||
1 in ('1.0',2.0)
|
||
1
|
||
select 1 in (1.0,'2.0');
|
||
1 in (1.0,'2.0')
|
||
1
|
||
select 1 in ('1.1',2);
|
||
1 in ('1.1',2)
|
||
0
|
||
select 1 in ('1.1',2.0);
|
||
1 in ('1.1',2.0)
|
||
0
|
||
create table t1 (a char(2) character set binary);
|
||
insert into t1 values ('aa'), ('bb');
|
||
select * from t1 where a in (NULL, 'aa');
|
||
a
|
||
aa
|
||
drop table t1;
|
||
create table t1 (id int, key(id));
|
||
insert into t1 values (1),(2),(3);
|
||
select count(*) from t1 where id not in (1);
|
||
count(*)
|
||
2
|
||
select count(*) from t1 where id not in (1,2);
|
||
count(*)
|
||
1
|
||
drop table t1;
|
||
DROP TABLE IF EXISTS t1;
|
||
CREATE TABLE t1 SELECT 1 IN (2, NULL);
|
||
SELECT should return NULL.
|
||
SELECT * FROM t1;
|
||
1 IN (2, NULL)
|
||
NULL
|
||
DROP TABLE t1;
|
||
End of 4.1 tests
|
||
CREATE TABLE t1 (a int PRIMARY KEY);
|
||
INSERT INTO t1 VALUES (44), (45), (46);
|
||
SELECT * FROM t1 WHERE a IN (45);
|
||
a
|
||
45
|
||
SELECT * FROM t1 WHERE a NOT IN (0, 45);
|
||
a
|
||
44
|
||
46
|
||
SELECT * FROM t1 WHERE a NOT IN (45);
|
||
a
|
||
44
|
||
46
|
||
CREATE VIEW v1 AS SELECT * FROM t1 WHERE a NOT IN (45);
|
||
SHOW CREATE VIEW v1;
|
||
View Create View character_set_client collation_connection
|
||
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`a` AS `a` from `t1` where (`t1`.`a` <> 45) latin1 latin1_swedish_ci
|
||
SELECT * FROM v1;
|
||
a
|
||
44
|
||
46
|
||
DROP VIEW v1;
|
||
DROP TABLE t1;
|
||
create table t1 (a int);
|
||
insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
|
||
create table t2 (a int, filler char(200), key(a));
|
||
insert into t2 select C.a*2, 'no' from t1 A, t1 B, t1 C;
|
||
insert into t2 select C.a*2+1, 'yes' from t1 C;
|
||
explain
|
||
select * from t2 where a NOT IN (0, 2,4,6,8,10,12,14,16,18);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t2 range a a 5 NULL 12 Using where
|
||
select * from t2 where a NOT IN (0, 2,4,6,8,10,12,14,16,18);
|
||
a filler
|
||
1 yes
|
||
3 yes
|
||
5 yes
|
||
7 yes
|
||
9 yes
|
||
11 yes
|
||
13 yes
|
||
15 yes
|
||
17 yes
|
||
19 yes
|
||
explain select * from t2 force index(a) where a NOT IN (2,2,2,2,2,2);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t2 range a a 5 NULL 912 Using where
|
||
explain select * from t2 force index(a) where a <> 2;
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t2 range a a 5 NULL 912 Using where
|
||
drop table t2;
|
||
create table t2 (a datetime, filler char(200), key(a));
|
||
insert into t2 select '2006-04-25 10:00:00' + interval C.a minute,
|
||
'no' from t1 A, t1 B, t1 C where C.a % 2 = 0;
|
||
insert into t2 select '2006-04-25 10:00:00' + interval C.a*2+1 minute,
|
||
'yes' from t1 C;
|
||
explain
|
||
select * from t2 where a NOT IN (
|
||
'2006-04-25 10:00:00','2006-04-25 10:02:00','2006-04-25 10:04:00',
|
||
'2006-04-25 10:06:00', '2006-04-25 10:08:00');
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t2 range a a 9 NULL 18 Using where
|
||
select * from t2 where a NOT IN (
|
||
'2006-04-25 10:00:00','2006-04-25 10:02:00','2006-04-25 10:04:00',
|
||
'2006-04-25 10:06:00', '2006-04-25 10:08:00');
|
||
a filler
|
||
2006-04-25 10:01:00 yes
|
||
2006-04-25 10:03:00 yes
|
||
2006-04-25 10:05:00 yes
|
||
2006-04-25 10:07:00 yes
|
||
2006-04-25 10:09:00 yes
|
||
2006-04-25 10:11:00 yes
|
||
2006-04-25 10:13:00 yes
|
||
2006-04-25 10:15:00 yes
|
||
2006-04-25 10:17:00 yes
|
||
2006-04-25 10:19:00 yes
|
||
drop table t2;
|
||
create table t2 (a varchar(10), filler char(200), key(a));
|
||
insert into t2 select 'foo', 'no' from t1 A, t1 B;
|
||
insert into t2 select 'barbar', 'no' from t1 A, t1 B;
|
||
insert into t2 select 'bazbazbaz', 'no' from t1 A, t1 B;
|
||
insert into t2 values ('fon', '1'), ('fop','1'), ('barbaq','1'),
|
||
('barbas','1'), ('bazbazbay', '1'),('zz','1');
|
||
explain select * from t2 where a not in('foo','barbar', 'bazbazbaz');
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t2 range a a 13 NULL 7 Using where
|
||
drop table t2;
|
||
create table t2 (a decimal(10,5), filler char(200), key(a));
|
||
insert into t2 select 345.67890, 'no' from t1 A, t1 B;
|
||
insert into t2 select 43245.34, 'no' from t1 A, t1 B;
|
||
insert into t2 select 64224.56344, 'no' from t1 A, t1 B;
|
||
insert into t2 values (0, '1'), (22334.123,'1'), (33333,'1'),
|
||
(55555,'1'), (77777, '1');
|
||
explain
|
||
select * from t2 where a not in (345.67890, 43245.34, 64224.56344);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t2 range a a 7 NULL 7 Using where
|
||
select * from t2 where a not in (345.67890, 43245.34, 64224.56344);
|
||
a filler
|
||
0.00000 1
|
||
22334.12300 1
|
||
33333.00000 1
|
||
55555.00000 1
|
||
77777.00000 1
|
||
drop table t2;
|
||
create table t2 (a int, key(a), b int);
|
||
insert into t2 values (1,1),(2,2);
|
||
set @cnt= 1;
|
||
set @str="update t2 set b=1 where a not in (";
|
||
select count(*) from (
|
||
select @str:=concat(@str, @cnt:=@cnt+1, ",")
|
||
from t1 A, t1 B, t1 C, t1 D) Z;
|
||
count(*)
|
||
10000
|
||
set @str:=concat(@str, "10000)");
|
||
select substr(@str, 1, 50);
|
||
substr(@str, 1, 50)
|
||
update t2 set b=1 where a not in (2,3,4,5,6,7,8,9,
|
||
prepare s from @str;
|
||
execute s;
|
||
deallocate prepare s;
|
||
set @str=NULL;
|
||
drop table t2;
|
||
drop table t1;
|
||
create table t1 (
|
||
some_id smallint(5) unsigned,
|
||
key (some_id)
|
||
);
|
||
insert into t1 values (1),(2);
|
||
select some_id from t1 where some_id not in(2,-1);
|
||
some_id
|
||
1
|
||
select some_id from t1 where some_id not in(-4,-1,-4);
|
||
some_id
|
||
1
|
||
2
|
||
select some_id from t1 where some_id not in(-4,-1,3423534,2342342);
|
||
some_id
|
||
1
|
||
2
|
||
select some_id from t1 where some_id not in('-1', '0');
|
||
some_id
|
||
1
|
||
2
|
||
drop table t1;
|
||
CREATE TABLE t1 (a int, b int, PRIMARY KEY (a));
|
||
INSERT INTO t1 VALUES (1,1),(2,1),(3,1),(4,1),(5,1),(6,1);
|
||
CREATE TABLE t2 (a int, b int, PRIMARY KEY (a));
|
||
INSERT INTO t2 VALUES (3,2),(4,2),(100,100),(101,201),(102,102);
|
||
CREATE TABLE t3 (a int PRIMARY KEY);
|
||
INSERT INTO t3 VALUES (1),(2),(3),(4);
|
||
CREATE TABLE t4 (a int PRIMARY KEY,b int);
|
||
INSERT INTO t4 VALUES (1,1),(2,2),(1000,1000),(1001,1001),(1002,1002),
|
||
(1003,1003),(1004,1004);
|
||
EXPLAIN SELECT STRAIGHT_JOIN * FROM t3
|
||
JOIN t1 ON t3.a=t1.a
|
||
JOIN t2 ON t3.a=t2.a
|
||
JOIN t4 WHERE t4.a IN (t1.b, t2.b);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t3 index PRIMARY PRIMARY 4 NULL 4 Using index
|
||
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t3.a 1
|
||
1 SIMPLE t2 eq_ref PRIMARY PRIMARY 4 test.t3.a 1
|
||
1 SIMPLE t4 ALL PRIMARY NULL NULL NULL 7 Range checked for each record (index map: 0x1)
|
||
SELECT STRAIGHT_JOIN * FROM t3
|
||
JOIN t1 ON t3.a=t1.a
|
||
JOIN t2 ON t3.a=t2.a
|
||
JOIN t4 WHERE t4.a IN (t1.b, t2.b);
|
||
a a b a b a b
|
||
3 3 1 3 2 1 1
|
||
3 3 1 3 2 2 2
|
||
4 4 1 4 2 1 1
|
||
4 4 1 4 2 2 2
|
||
EXPLAIN SELECT STRAIGHT_JOIN
|
||
(SELECT SUM(t4.a) FROM t4 WHERE t4.a IN (t1.b, t2.b))
|
||
FROM t3, t1, t2
|
||
WHERE t3.a=t1.a AND t3.a=t2.a;
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 PRIMARY t3 index PRIMARY PRIMARY 4 NULL 4 Using index
|
||
1 PRIMARY t1 eq_ref PRIMARY PRIMARY 4 test.t3.a 1
|
||
1 PRIMARY t2 eq_ref PRIMARY PRIMARY 4 test.t3.a 1
|
||
2 DEPENDENT SUBQUERY t4 index NULL PRIMARY 4 NULL 7 Using where; Using index
|
||
SELECT STRAIGHT_JOIN
|
||
(SELECT SUM(t4.a) FROM t4 WHERE t4.a IN (t1.b, t2.b))
|
||
FROM t3, t1, t2
|
||
WHERE t3.a=t1.a AND t3.a=t2.a;
|
||
(SELECT SUM(t4.a) FROM t4 WHERE t4.a IN (t1.b, t2.b))
|
||
3
|
||
3
|
||
DROP TABLE t1,t2,t3,t4;
|
||
CREATE TABLE t1(a BIGINT UNSIGNED);
|
||
INSERT INTO t1 VALUES (0xFFFFFFFFFFFFFFFF);
|
||
SELECT * FROM t1 WHERE a=-1 OR a=-2 ;
|
||
a
|
||
SELECT * FROM t1 WHERE a IN (-1, -2);
|
||
a
|
||
CREATE TABLE t2 (a BIGINT UNSIGNED);
|
||
insert into t2 values(13491727406643098568),
|
||
(0x7fffffefffffffff),
|
||
(0x7ffffffeffffffff),
|
||
(0x7fffffffefffffff),
|
||
(0x7ffffffffeffffff),
|
||
(0x7fffffffffefffff),
|
||
(0x7ffffffffffeffff),
|
||
(0x7fffffffffffefff),
|
||
(0x7ffffffffffffeff),
|
||
(0x7fffffffffffffef),
|
||
(0x7ffffffffffffffe),
|
||
(0x7fffffffffffffff),
|
||
(0x8000000000000000),
|
||
(0x8000000000000001),
|
||
(0x8000000000000002),
|
||
(0x8000000000000300),
|
||
(0x8000000000000400),
|
||
(0x8000000000000401),
|
||
(0x8000000000004001),
|
||
(0x8000000000040001),
|
||
(0x8000000000400001),
|
||
(0x8000000004000001),
|
||
(0x8000000040000001),
|
||
(0x8000000400000001),
|
||
(0x8000004000000001),
|
||
(0x8000040000000001);
|
||
SELECT HEX(a) FROM t2 WHERE a IN
|
||
(CAST(0xBB3C3E98175D33C8 AS UNSIGNED),
|
||
42);
|
||
HEX(a)
|
||
BB3C3E98175D33C8
|
||
SELECT HEX(a) FROM t2 WHERE a IN
|
||
(CAST(0xBB3C3E98175D33C8 AS UNSIGNED),
|
||
CAST(0x7fffffffffffffff AS UNSIGNED),
|
||
CAST(0x8000000000000000 AS UNSIGNED),
|
||
CAST(0x8000000000000400 AS UNSIGNED),
|
||
CAST(0x8000000000000401 AS UNSIGNED),
|
||
42);
|
||
HEX(a)
|
||
BB3C3E98175D33C8
|
||
7FFFFFFFFFFFFFFF
|
||
8000000000000000
|
||
8000000000000400
|
||
8000000000000401
|
||
SELECT HEX(a) FROM t2 WHERE a IN
|
||
(CAST(0x7fffffffffffffff AS UNSIGNED),
|
||
CAST(0x8000000000000001 AS UNSIGNED));
|
||
HEX(a)
|
||
7FFFFFFFFFFFFFFF
|
||
8000000000000001
|
||
SELECT HEX(a) FROM t2 WHERE a IN
|
||
(CAST(0x7ffffffffffffffe AS UNSIGNED),
|
||
CAST(0x7fffffffffffffff AS UNSIGNED));
|
||
HEX(a)
|
||
7FFFFFFFFFFFFFFE
|
||
7FFFFFFFFFFFFFFF
|
||
SELECT HEX(a) FROM t2 WHERE a IN
|
||
(0x7ffffffffffffffe,
|
||
0x7fffffffffffffff,
|
||
'abc');
|
||
HEX(a)
|
||
7FFFFFFFFFFFFFFE
|
||
7FFFFFFFFFFFFFFF
|
||
CREATE TABLE t3 (a BIGINT UNSIGNED);
|
||
INSERT INTO t3 VALUES (9223372036854775551);
|
||
SELECT HEX(a) FROM t3 WHERE a IN (9223372036854775807, 42);
|
||
HEX(a)
|
||
CREATE TABLE t4 (a DATE);
|
||
INSERT INTO t4 VALUES ('1972-02-06'), ('1972-07-29');
|
||
SELECT * FROM t4 WHERE a IN ('1972-02-06','19772-07-29');
|
||
a
|
||
1972-02-06
|
||
Warnings:
|
||
Warning 1292 Incorrect date value: '19772-07-29' for column 'a' at row 1
|
||
DROP TABLE t1,t2,t3,t4;
|
||
CREATE TABLE t1 (id int not null);
|
||
INSERT INTO t1 VALUES (1),(2);
|
||
SELECT id FROM t1 WHERE id IN(4564, (SELECT IF(1=0,1,1/0)) );
|
||
id
|
||
DROP TABLE t1;
|
||
End of 5.0 tests
|
||
create table t1(f1 char(1));
|
||
insert into t1 values ('a'),('b'),('1');
|
||
select f1 from t1 where f1 in ('a',1);
|
||
f1
|
||
a
|
||
1
|
||
Warnings:
|
||
Warning 1292 Truncated incorrect DOUBLE value: 'b'
|
||
select f1, case f1 when 'a' then '+' when 1 then '-' end from t1;
|
||
f1 case f1 when 'a' then '+' when 1 then '-' end
|
||
a +
|
||
b NULL
|
||
1 -
|
||
Warnings:
|
||
Warning 1292 Truncated incorrect DOUBLE value: 'b'
|
||
create index t1f1_idx on t1(f1);
|
||
select f1 from t1 where f1 in ('a',1);
|
||
f1
|
||
1
|
||
a
|
||
Warnings:
|
||
Warning 1292 Truncated incorrect DOUBLE value: 'b'
|
||
explain select f1 from t1 where f1 in ('a',1);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 index t1f1_idx t1f1_idx 2 NULL 3 Using where; Using index
|
||
select f1 from t1 where f1 in ('a','b');
|
||
f1
|
||
a
|
||
b
|
||
explain select f1 from t1 where f1 in ('a','b');
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 index t1f1_idx t1f1_idx 2 NULL 3 Using where; Using index
|
||
select f1 from t1 where f1 in (2,1);
|
||
f1
|
||
1
|
||
Warnings:
|
||
Warning 1292 Truncated incorrect DOUBLE value: 'a'
|
||
Warning 1292 Truncated incorrect DOUBLE value: 'b'
|
||
explain select f1 from t1 where f1 in (2,1);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 index t1f1_idx t1f1_idx 2 NULL 3 Using where; Using index
|
||
create table t2(f2 int, index t2f2(f2));
|
||
insert into t2 values(0),(1),(2);
|
||
select f2 from t2 where f2 in ('a',2);
|
||
f2
|
||
0
|
||
2
|
||
Warnings:
|
||
Warning 1292 Truncated incorrect DOUBLE value: 'a'
|
||
Warning 1292 Truncated incorrect DOUBLE value: 'a'
|
||
Warning 1292 Truncated incorrect DOUBLE value: 'a'
|
||
explain select f2 from t2 where f2 in ('a',2);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t2 index t2f2 t2f2 5 NULL 3 Using where; Using index
|
||
select f2 from t2 where f2 in ('a','b');
|
||
f2
|
||
0
|
||
Warnings:
|
||
Warning 1292 Truncated incorrect DOUBLE value: 'a'
|
||
Warning 1292 Truncated incorrect DOUBLE value: 'b'
|
||
explain select f2 from t2 where f2 in ('a','b');
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t2 index t2f2 t2f2 5 NULL 3 Using where; Using index
|
||
Warnings:
|
||
Warning 1292 Truncated incorrect DOUBLE value: 'a'
|
||
Warning 1292 Truncated incorrect DOUBLE value: 'b'
|
||
select f2 from t2 where f2 in (1,'b');
|
||
f2
|
||
0
|
||
1
|
||
Warnings:
|
||
Warning 1292 Truncated incorrect DOUBLE value: 'b'
|
||
Warning 1292 Truncated incorrect DOUBLE value: 'b'
|
||
explain select f2 from t2 where f2 in (1,'b');
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t2 index t2f2 t2f2 5 NULL 3 Using where; Using index
|
||
drop table t1, t2;
|
||
create table t1 (a time, key(a));
|
||
insert into t1 values (),(),(),(),(),(),(),(),(),();
|
||
select a from t1 where a not in (a,a,a) group by a;
|
||
a
|
||
drop table t1;
|
||
create table t1 (id int);
|
||
select * from t1 where NOT id in (select null union all select 1);
|
||
id
|
||
select * from t1 where NOT id in (null, 1);
|
||
id
|
||
drop table t1;
|
||
CREATE TABLE t1(c0 INTEGER, c1 INTEGER, c2 INTEGER);
|
||
INSERT INTO t1 VALUES(1, 1, 1), (1, 1, 1);
|
||
SELECT CASE AVG (c0) WHEN c1 * c2 THEN 1 END FROM t1;
|
||
CASE AVG (c0) WHEN c1 * c2 THEN 1 END
|
||
1
|
||
SELECT CASE c1 * c2 WHEN SUM(c0) THEN 1 WHEN AVG(c0) THEN 2 END FROM t1;
|
||
CASE c1 * c2 WHEN SUM(c0) THEN 1 WHEN AVG(c0) THEN 2 END
|
||
2
|
||
SELECT CASE c1 WHEN c1 + 1 THEN 1 END, ABS(AVG(c0)) FROM t1;
|
||
CASE c1 WHEN c1 + 1 THEN 1 END ABS(AVG(c0))
|
||
NULL 1.0000
|
||
DROP TABLE t1;
|
||
CREATE TABLE t1(a TEXT, b INT, c INT UNSIGNED, d DECIMAL(12,2), e REAL);
|
||
INSERT INTO t1 VALUES('iynfj', 1, 1, 1, 1);
|
||
INSERT INTO t1 VALUES('innfj', 2, 2, 2, 2);
|
||
SELECT SUM( DISTINCT a ) FROM t1 GROUP BY a HAVING a IN ( AVG( 1 ), 1 + a);
|
||
SUM( DISTINCT a )
|
||
SELECT SUM( DISTINCT b ) FROM t1 GROUP BY b HAVING b IN ( AVG( 1 ), 1 + b);
|
||
SUM( DISTINCT b )
|
||
1
|
||
SELECT SUM( DISTINCT c ) FROM t1 GROUP BY c HAVING c IN ( AVG( 1 ), 1 + c);
|
||
SUM( DISTINCT c )
|
||
1
|
||
SELECT SUM( DISTINCT d ) FROM t1 GROUP BY d HAVING d IN ( AVG( 1 ), 1 + d);
|
||
SUM( DISTINCT d )
|
||
1.00
|
||
SELECT SUM( DISTINCT e ) FROM t1 GROUP BY e HAVING e IN ( AVG( 1 ), 1 + e);
|
||
SUM( DISTINCT e )
|
||
1
|
||
SELECT SUM( DISTINCT e ) FROM t1 GROUP BY b,c,d HAVING (b,c,d) IN
|
||
((AVG( 1 ), 1 + c, 1 + d), (AVG( 1 ), 2 + c, 2 + d));
|
||
SUM( DISTINCT e )
|
||
DROP TABLE t1;
|
||
#
|
||
# Bug #44139: Table scan when NULL appears in IN clause
|
||
#
|
||
CREATE TABLE t1 (
|
||
c_int INT NOT NULL,
|
||
c_decimal DECIMAL(5,2) NOT NULL,
|
||
c_float FLOAT(5, 2) NOT NULL,
|
||
c_bit BIT(10) NOT NULL,
|
||
c_date DATE NOT NULL,
|
||
c_datetime DATETIME NOT NULL,
|
||
c_timestamp TIMESTAMP NOT NULL,
|
||
c_time TIME NOT NULL,
|
||
c_year YEAR NOT NULL,
|
||
c_char CHAR(10) NOT NULL,
|
||
INDEX(c_int), INDEX(c_decimal), INDEX(c_float), INDEX(c_bit), INDEX(c_date),
|
||
INDEX(c_datetime), INDEX(c_timestamp), INDEX(c_time), INDEX(c_year),
|
||
INDEX(c_char));
|
||
INSERT INTO t1 (c_int) VALUES (1), (2), (3), (4), (5);
|
||
INSERT INTO t1 (c_int) SELECT 0 FROM t1;
|
||
INSERT INTO t1 (c_int) SELECT 0 FROM t1;
|
||
EXPLAIN SELECT * FROM t1 WHERE c_int IN (1, 2, 3);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_int c_int 4 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_int IN (NULL, 1, 2, 3);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_int c_int 4 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_int IN (1, 2, 3);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_int c_int 4 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_int IN (1, NULL, 2, NULL, 3, NULL);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_int c_int 4 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_int IN (NULL);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||
EXPLAIN SELECT * FROM t1 WHERE c_int IN (NULL, NULL);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||
EXPLAIN SELECT * FROM t1 WHERE c_decimal IN (1, 2, 3);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_decimal c_decimal 3 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_decimal IN (NULL, 1, 2, 3);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_decimal c_decimal 3 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_decimal IN (NULL);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||
EXPLAIN SELECT * FROM t1 WHERE c_decimal IN (NULL, NULL);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||
EXPLAIN SELECT * FROM t1 WHERE c_float IN (1, 2, 3);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_float c_float 4 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_float IN (NULL, 1, 2, 3);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_float c_float 4 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_float IN (NULL);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||
EXPLAIN SELECT * FROM t1 WHERE c_float IN (NULL, NULL);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||
EXPLAIN SELECT * FROM t1 WHERE c_bit IN (1, 2, 3);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_bit c_bit 2 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_bit IN (NULL, 1, 2, 3);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_bit c_bit 2 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_bit IN (NULL);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||
EXPLAIN SELECT * FROM t1 WHERE c_bit IN (NULL, NULL);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||
EXPLAIN SELECT * FROM t1 WHERE c_date
|
||
IN ('2009-09-01', '2009-09-02', '2009-09-03');
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_date c_date 3 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_date
|
||
IN (NULL, '2009-09-01', '2009-09-02', '2009-09-03');
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_date c_date 3 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_date IN (NULL);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||
EXPLAIN SELECT * FROM t1 WHERE c_date IN (NULL, NULL);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||
EXPLAIN SELECT * FROM t1 WHERE c_datetime
|
||
IN ('2009-09-01 00:00:01', '2009-09-02 00:00:01', '2009-09-03 00:00:01');
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_datetime c_datetime 8 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_datetime
|
||
IN (NULL, '2009-09-01 00:00:01', '2009-09-02 00:00:01', '2009-09-03 00:00:01');
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_datetime c_datetime 8 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_datetime IN (NULL);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||
EXPLAIN SELECT * FROM t1 WHERE c_datetime IN (NULL, NULL);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||
EXPLAIN SELECT * FROM t1 WHERE c_timestamp
|
||
IN ('2009-09-01 00:00:01', '2009-09-01 00:00:02', '2009-09-01 00:00:03');
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_timestamp c_timestamp 4 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_timestamp
|
||
IN (NULL, '2009-09-01 00:00:01', '2009-09-01 00:00:02', '2009-09-01 00:00:03');
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_timestamp c_timestamp 4 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_timestamp IN (NULL);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||
EXPLAIN SELECT * FROM t1 WHERE c_timestamp IN (NULL, NULL);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||
EXPLAIN SELECT * FROM t1 WHERE c_year IN (1, 2, 3);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_year c_year 1 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_year IN (NULL, 1, 2, 3);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_year c_year 1 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_year IN (NULL);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||
EXPLAIN SELECT * FROM t1 WHERE c_year IN (NULL, NULL);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||
EXPLAIN SELECT * FROM t1 WHERE c_char IN ('1', '2', '3');
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_char c_char 10 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_char IN (NULL, '1', '2', '3');
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE t1 range c_char c_char 10 NULL 3 Using where
|
||
EXPLAIN SELECT * FROM t1 WHERE c_char IN (NULL);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||
EXPLAIN SELECT * FROM t1 WHERE c_char IN (NULL, NULL);
|
||
id select_type table type possible_keys key key_len ref rows Extra
|
||
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
|
||
DROP TABLE t1;
|
||
#
|
||
End of 5.1 tests
|