drop table if exists t1,t2;
#
# Start of 5.5 tests
#
set names utf8mb4;
select left(_utf8mb4 0xD0B0D0B1D0B2,1);
left(_utf8mb4 0xD0B0D0B1D0B2,1)
а
select right(_utf8mb4 0xD0B0D0B2D0B2,1);
right(_utf8mb4 0xD0B0D0B2D0B2,1)
в
select locate('he','hello');
locate('he','hello')
1
select locate('he','hello',2);
locate('he','hello',2)
0
select locate('lo','hello',2);
locate('lo','hello',2)
4
select locate('HE','hello');
locate('HE','hello')
1
select locate('HE','hello',2);
locate('HE','hello',2)
0
select locate('LO','hello',2);
locate('LO','hello',2)
4
select locate('HE','hello' collate utf8mb4_bin);
locate('HE','hello' collate utf8mb4_bin)
0
select locate('HE','hello' collate utf8mb4_bin,2);
locate('HE','hello' collate utf8mb4_bin,2)
0
select locate('LO','hello' collate utf8mb4_bin,2);
locate('LO','hello' collate utf8mb4_bin,2)
0
select locate(_utf8mb4 0xD0B1, _utf8mb4 0xD0B0D0B1D0B2);
locate(_utf8mb4 0xD0B1, _utf8mb4 0xD0B0D0B1D0B2)
2
select locate(_utf8mb4 0xD091, _utf8mb4 0xD0B0D0B1D0B2);
locate(_utf8mb4 0xD091, _utf8mb4 0xD0B0D0B1D0B2)
2
select locate(_utf8mb4 0xD0B1, _utf8mb4 0xD0B0D091D0B2);
locate(_utf8mb4 0xD0B1, _utf8mb4 0xD0B0D091D0B2)
2
select locate(_utf8mb4 0xD091, _utf8mb4 0xD0B0D0B1D0B2 collate utf8mb4_bin);
locate(_utf8mb4 0xD091, _utf8mb4 0xD0B0D0B1D0B2 collate utf8mb4_bin)
0
select locate(_utf8mb4 0xD0B1, _utf8mb4 0xD0B0D091D0B2 collate utf8mb4_bin);
locate(_utf8mb4 0xD0B1, _utf8mb4 0xD0B0D091D0B2 collate utf8mb4_bin)
0
select length(_utf8mb4 0xD0B1), bit_length(_utf8mb4 0xD0B1), char_length(_utf8mb4 0xD0B1);
length(_utf8mb4 0xD0B1) bit_length(_utf8mb4 0xD0B1) char_length(_utf8mb4 0xD0B1)
2 16 1
select 'a' like 'a';
'a' like 'a'
1
select 'A' like 'a';
'A' like 'a'
1
select 'A' like 'a' collate utf8mb4_bin;
'A' like 'a' collate utf8mb4_bin
0
select _utf8mb4 0xD0B0D0B1D0B2 like concat(_utf8mb4'%',_utf8mb4 0xD0B1,_utf8mb4 '%');
_utf8mb4 0xD0B0D0B1D0B2 like concat(_utf8mb4'%',_utf8mb4 0xD0B1,_utf8mb4 '%')
1
select convert(_latin1'G�nter Andr�' using utf8mb4) like CONVERT(_latin1'G�NTER%' USING utf8mb4);
convert(_latin1'G?nter Andr?' using utf8mb4) like CONVERT(_latin1'G?NTER%' USING utf8mb4)
1
select CONVERT(_koi8r'���' USING utf8mb4) LIKE CONVERT(_koi8r'����' USING utf8mb4);
CONVERT(_koi8r'????' USING utf8mb4) LIKE CONVERT(_koi8r'????' USING utf8mb4)
1
select CONVERT(_koi8r'����' USING utf8mb4) LIKE CONVERT(_koi8r'���' USING utf8mb4);
CONVERT(_koi8r'????' USING utf8mb4) LIKE CONVERT(_koi8r'????' USING utf8mb4)
1
SELECT 'a' = 'a ';
'a' = 'a '
1
SELECT 'a\0' < 'a';
'a\0' < 'a'
1
SELECT 'a\0' < 'a ';
'a\0' < 'a '
1
SELECT 'a\t' < 'a';
'a\t' < 'a'
1
SELECT 'a\t' < 'a ';
'a\t' < 'a '
1
SELECT 'a' = 'a ' collate utf8mb4_bin;
'a' = 'a ' collate utf8mb4_bin
1
SELECT 'a\0' < 'a' collate utf8mb4_bin;
'a\0' < 'a' collate utf8mb4_bin
1
SELECT 'a\0' < 'a ' collate utf8mb4_bin;
'a\0' < 'a ' collate utf8mb4_bin
1
SELECT 'a\t' < 'a' collate utf8mb4_bin;
'a\t' < 'a' collate utf8mb4_bin
1
SELECT 'a\t' < 'a ' collate utf8mb4_bin;
'a\t' < 'a ' collate utf8mb4_bin
1
CREATE TABLE t1 (a char(10) character set utf8mb4 not null);
INSERT INTO t1 VALUES ('a'),('a\0'),('a\t'),('a ');
SELECT hex(a),STRCMP(a,'a'), STRCMP(a,'a ') FROM t1;
hex(a) STRCMP(a,'a') STRCMP(a,'a ')
61 0 0
6100 -1 -1
6109 -1 -1
61 0 0
DROP TABLE t1;
select insert('txs',2,1,'hi'),insert('is ',4,0,'a'),insert('txxxxt',2,4,'es');
insert('txs',2,1,'hi') insert('is ',4,0,'a') insert('txxxxt',2,4,'es')
this is test
select insert("aa",100,1,"b"),insert("aa",1,3,"b");
insert("aa",100,1,"b") insert("aa",1,3,"b")
aa b
select char_length(left(@a:='тест',5)), length(@a), @a;
char_length(left(@a:='тест',5)) length(@a) @a
4 8 тест
create table t1 select date_format("2004-01-19 10:10:10", "%Y-%m-%d");
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`date_format("2004-01-19 10:10:10", "%Y-%m-%d")` varchar(10) CHARACTER SET utf8mb4 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
select * from t1;
date_format("2004-01-19 10:10:10", "%Y-%m-%d")
2004-01-19
drop table t1;
set names utf8mb4;
set LC_TIME_NAMES='fr_FR';
create table t1 (s1 char(20) character set latin1);
insert into t1 values (date_format('2004-02-02','%M'));
select hex(s1) from t1;
hex(s1)
66E97672696572
drop table t1;
create table t1 (s1 char(20) character set koi8r);
set LC_TIME_NAMES='ru_RU';
insert into t1 values (date_format('2004-02-02','%M'));
insert into t1 values (date_format('2004-02-02','%b'));
insert into t1 values (date_format('2004-02-02','%W'));
insert into t1 values (date_format('2004-02-02','%a'));
select hex(s1), s1 from t1;
hex(s1) s1
E6C5D7D2C1CCD1 Февраля
E6C5D7 Фев
F0CFCEC5C4C5CCD8CEC9CB Понедельник
F0CEC4 Пнд
drop table t1;
set LC_TIME_NAMES='en_US';
set names koi8r;
create table t1 (s1 char(1) character set utf8mb4);
insert into t1 values (_koi8r'��');
Warnings:
Warning 1265 Data truncated for column 's1' at row 1
select s1,hex(s1),char_length(s1),octet_length(s1) from t1;
s1 hex(s1) char_length(s1) octet_length(s1)
� D0B0 1 2
drop table t1;
create table t1 (s1 tinytext character set utf8mb4);
insert into t1 select repeat('a',300);
Warnings:
Warning 1265 Data truncated for column 's1' at row 1
insert into t1 select repeat('�',300);
Warnings:
Warning 1265 Data truncated for column 's1' at row 1
insert into t1 select repeat('a�',300);
Warnings:
Warning 1265 Data truncated for column 's1' at row 1
insert into t1 select repeat('�a',300);
Warnings:
Warning 1265 Data truncated for column 's1' at row 1
insert into t1 select repeat('��',300);
Warnings:
Warning 1265 Data truncated for column 's1' at row 1
select hex(s1) from t1;
hex(s1)
616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161
D18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18F
61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F
D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61
D18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18F
select length(s1),char_length(s1) from t1;
length(s1) char_length(s1)
255 255
254 127
255 170
255 170
254 127
drop table t1;
create table t1 (s1 text character set utf8mb4);
insert into t1 select repeat('a',66000);
Warnings:
Warning 1265 Data truncated for column 's1' at row 1
insert into t1 select repeat('�',66000);
Warnings:
Warning 1265 Data truncated for column 's1' at row 1
insert into t1 select repeat('a�',66000);
Warnings:
Warning 1265 Data truncated for column 's1' at row 1
insert into t1 select repeat('�a',66000);
Warnings:
Warning 1265 Data truncated for column 's1' at row 1
insert into t1 select repeat('��',66000);
Warnings:
Warning 1265 Data truncated for column 's1' at row 1
select length(s1),char_length(s1) from t1;
length(s1) char_length(s1)
65535 65535
65534 32767
65535 43690
65535 43690
65534 32767
drop table t1;
create table t1 (s1 char(10) character set utf8mb4);
insert into t1 values (0x41FF);
Warnings:
Warning 1366 Incorrect string value: '\xFF' for column 's1' at row 1
select hex(s1) from t1;
hex(s1)
41
drop table t1;
create table t1 (s1 varchar(10) character set utf8mb4);
insert into t1 values (0x41FF);
Warnings:
Warning 1366 Incorrect string value: '\xFF' for column 's1' at row 1
select hex(s1) from t1;
hex(s1)
41
drop table t1;
create table t1 (s1 text character set utf8mb4);
insert into t1 values (0x41FF);
Warnings:
Warning 1366 Incorrect string value: '\xFF' for column 's1' at row 1
select hex(s1) from t1;
hex(s1)
41
drop table t1;
create table t1 (a text character set utf8mb4, primary key(a(371)));
ERROR 42000: Specified key was too long; max key length is 1000 bytes
CREATE TABLE t1 ( a varchar(10) ) CHARACTER SET utf8mb4;
INSERT INTO t1 VALUES ( 'test' );
SELECT a.a, b.a FROM t1 a, t1 b WHERE a.a = b.a;
a a
test test
SELECT a.a, b.a FROM t1 a, t1 b WHERE a.a = 'test' and b.a = 'test';
a a
test test
SELECT a.a, b.a FROM t1 a, t1 b WHERE a.a = b.a and a.a = 'test';
a a
test test
DROP TABLE t1;
create table t1 (a char(255) character set utf8mb4);
insert into t1 values('b'),('b');
select * from t1 where a = 'b';
a
b
b
select * from t1 where a = 'b' and a = 'b';
a
b
b
select * from t1 where a = 'b' and a != 'b';
a
drop table t1;
set collation_connection=utf8mb4_general_ci;
drop table if exists t1;
create table t1 as
select repeat(' ', 64) as s1, repeat(' ',64) as s2
union
select null, null;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`s1` varchar(64) CHARACTER SET utf8mb4 DEFAULT NULL,
`s2` varchar(64) CHARACTER SET utf8mb4 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
delete from t1;
insert into t1 values('aaa','aaa');
insert into t1 values('aaa|qqq','qqq');
insert into t1 values('gheis','^[^a-dXYZ]+$');
insert into t1 values('aab','^aa?b');
insert into t1 values('Baaan','^Ba*n');
insert into t1 values('aaa','qqq|aaa');
insert into t1 values('qqq','qqq|aaa');
insert into t1 values('bbb','qqq|aaa');
insert into t1 values('bbb','qqq');
insert into t1 values('aaa','aba');
insert into t1 values(null,'abc');
insert into t1 values('def',null);
insert into t1 values(null,null);
insert into t1 values('ghi','ghi[');
select HIGH_PRIORITY s1 regexp s2 from t1;
s1 regexp s2
1
1
1
1
1
1
1
0
0
0
NULL
NULL
NULL
NULL
drop table t1;
set names utf8mb4;
set names utf8mb4;
select 'вася' rlike '[[:<:]]вася[[:>:]]';
'вася' rlike '[[:<:]]вася[[:>:]]'
1
select 'вася ' rlike '[[:<:]]вася[[:>:]]';
'вася ' rlike '[[:<:]]вася[[:>:]]'
1
select ' вася' rlike '[[:<:]]вася[[:>:]]';
' вася' rlike '[[:<:]]вася[[:>:]]'
1
select ' вася ' rlike '[[:<:]]вася[[:>:]]';
' вася ' rlike '[[:<:]]вася[[:>:]]'
1
select 'васяz' rlike '[[:<:]]вася[[:>:]]';
'васяz' rlike '[[:<:]]вася[[:>:]]'
0
select 'zвася' rlike '[[:<:]]вася[[:>:]]';
'zвася' rlike '[[:<:]]вася[[:>:]]'
0
select 'zвасяz' rlike '[[:<:]]вася[[:>:]]';
'zвасяz' rlike '[[:<:]]вася[[:>:]]'
0
CREATE TABLE t1 (a enum ('Y', 'N') DEFAULT 'N' COLLATE utf8mb4_unicode_ci);
ALTER TABLE t1 ADD COLUMN b CHAR(20);
DROP TABLE t1;
set names utf8mb4;
create table t1 (a enum('aaaa','проба') character set utf8mb4);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` enum('aaaa','проба') CHARACTER SET utf8mb4 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
insert into t1 values ('проба');
select * from t1;
a
проба
create table t2 select ifnull(a,a) from t1;
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`ifnull(a,a)` varchar(5) CHARACTER SET utf8mb4 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
select * from t2;
ifnull(a,a)
проба
drop table t1;
drop table t2;
create table t1 (c varchar(30) character set utf8mb4, unique(c(10)));
insert into t1 values ('1'),('2'),('3'),('x'),('y'),('z');
insert into t1 values ('aaaaaaaaaa');
insert into t1 values ('aaaaaaaaaaa');
ERROR 23000: Duplicate entry 'aaaaaaaaaa' for key 'c'
insert into t1 values ('aaaaaaaaaaaa');
ERROR 23000: Duplicate entry 'aaaaaaaaaa' for key 'c'
insert into t1 values (repeat('b',20));
select c c1 from t1 where c='1';
c1
1
select c c2 from t1 where c='2';
c2
2
select c c3 from t1 where c='3';
c3
3
select c cx from t1 where c='x';
cx
x
select c cy from t1 where c='y';
cy
y
select c cz from t1 where c='z';
cz
z
select c ca10 from t1 where c='aaaaaaaaaa';
ca10
aaaaaaaaaa
select c cb20 from t1 where c=repeat('b',20);
cb20
bbbbbbbbbbbbbbbbbbbb
drop table t1;
create table t1 (c varchar(30) character set utf8mb4, unique(c(10))) engine=innodb;
insert into t1 values ('1'),('2'),('3'),('x'),('y'),('z');
insert into t1 values ('aaaaaaaaaa');
insert into t1 values ('aaaaaaaaaaa');
ERROR 23000: Duplicate entry 'aaaaaaaaaa' for key 'c'
insert into t1 values ('aaaaaaaaaaaa');
ERROR 23000: Duplicate entry 'aaaaaaaaaa' for key 'c'
insert into t1 values (repeat('b',20));
select c c1 from t1 where c='1';
c1
1
select c c2 from t1 where c='2';
c2
2
select c c3 from t1 where c='3';
c3
3
select c cx from t1 where c='x';
cx
x
select c cy from t1 where c='y';
cy
y
select c cz from t1 where c='z';
cz
z
select c ca10 from t1 where c='aaaaaaaaaa';
ca10
aaaaaaaaaa
select c cb20 from t1 where c=repeat('b',20);
cb20
bbbbbbbbbbbbbbbbbbbb
drop table t1;
create table t1 (c char(3) character set utf8mb4, unique (c(2)));
insert into t1 values ('1'),('2'),('3'),('4'),('x'),('y'),('z');
insert into t1 values ('a');
insert into t1 values ('aa');
insert into t1 values ('aaa');
ERROR 23000: Duplicate entry 'aa' for key 'c'
insert into t1 values ('b');
insert into t1 values ('bb');
insert into t1 values ('bbb');
ERROR 23000: Duplicate entry 'bb' for key 'c'
insert into t1 values ('а');
insert into t1 values ('аа');
insert into t1 values ('ааа');
ERROR 23000: Duplicate entry 'аа' for key 'c'
insert into t1 values ('б');
insert into t1 values ('бб');
insert into t1 values ('ббб');
ERROR 23000: Duplicate entry 'бб' for key 'c'
insert into t1 values ('ꪪ');
insert into t1 values ('ꪪꪪ');
insert into t1 values ('ꪪꪪꪪ');
ERROR 23000: Duplicate entry 'ꪪꪪ' for key 'c'
drop table t1;
create table t1 (c char(3) character set utf8mb4, unique (c(2))) engine=innodb;
insert into t1 values ('1'),('2'),('3'),('4'),('x'),('y'),('z');
insert into t1 values ('a');
insert into t1 values ('aa');
insert into t1 values ('aaa');
ERROR 23000: Duplicate entry 'aa' for key 'c'
insert into t1 values ('b');
insert into t1 values ('bb');
insert into t1 values ('bbb');
ERROR 23000: Duplicate entry 'bb' for key 'c'
insert into t1 values ('а');
insert into t1 values ('аа');
insert into t1 values ('ааа');
ERROR 23000: Duplicate entry 'аа' for key 'c'
insert into t1 values ('б');
insert into t1 values ('бб');
insert into t1 values ('ббб');
ERROR 23000: Duplicate entry 'бб' for key 'c'
insert into t1 values ('ꪪ');
insert into t1 values ('ꪪꪪ');
insert into t1 values ('ꪪꪪꪪ');
ERROR 23000: Duplicate entry 'ꪪꪪ' for key 'c'
drop table t1;
create table t1 (
c char(10) character set utf8mb4,
unique key a using hash (c(1))
) engine=heap;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c` char(10) CHARACTER SET utf8mb4 DEFAULT NULL,
UNIQUE KEY `a` (`c`(1)) USING HASH
) ENGINE=MEMORY DEFAULT CHARSET=latin1
insert into t1 values ('a'),('b'),('c'),('d'),('e'),('f');
insert into t1 values ('aa');
ERROR 23000: Duplicate entry 'a' for key 'a'
insert into t1 values ('aaa');
ERROR 23000: Duplicate entry 'a' for key 'a'
insert into t1 values ('б');
insert into t1 values ('бб');
ERROR 23000: Duplicate entry 'б' for key 'a'
insert into t1 values ('ббб');
ERROR 23000: Duplicate entry 'б' for key 'a'
select c as c_all from t1 order by c;
c_all
a
b
c
d
e
f
б
select c as c_a from t1 where c='a';
c_a
a
select c as c_a from t1 where c='б';
c_a
б
drop table t1;
create table t1 (
c char(10) character set utf8mb4,
unique key a using btree (c(1))
) engine=heap;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c` char(10) CHARACTER SET utf8mb4 DEFAULT NULL,
UNIQUE KEY `a` (`c`(1)) USING BTREE
) ENGINE=MEMORY DEFAULT CHARSET=latin1
insert into t1 values ('a'),('b'),('c'),('d'),('e'),('f');
insert into t1 values ('aa');
ERROR 23000: Duplicate entry 'a' for key 'a'
insert into t1 values ('aaa');
ERROR 23000: Duplicate entry 'a' for key 'a'
insert into t1 values ('б');
insert into t1 values ('бб');
ERROR 23000: Duplicate entry 'б' for key 'a'
insert into t1 values ('ббб');
ERROR 23000: Duplicate entry 'б' for key 'a'
select c as c_all from t1 order by c;
c_all
a
b
c
d
e
f
б
select c as c_a from t1 where c='a';
c_a
a
select c as c_a from t1 where c='б';
c_a
б
drop table t1;
create table t1 (
c char(10) character set utf8mb4,
unique key a (c(1))
) engine=innodb;
insert into t1 values ('a'),('b'),('c'),('d'),('e'),('f');
insert into t1 values ('aa');
ERROR 23000: Duplicate entry 'a' for key 'a'
insert into t1 values ('aaa');
ERROR 23000: Duplicate entry 'a' for key 'a'
insert into t1 values ('б');
insert into t1 values ('бб');
ERROR 23000: Duplicate entry 'б' for key 'a'
insert into t1 values ('ббб');
ERROR 23000: Duplicate entry 'б' for key 'a'
select c as c_all from t1 order by c;
c_all
a
b
c
d
e
f
б
select c as c_a from t1 where c='a';
c_a
a
select c as c_a from t1 where c='б';
c_a
б
drop table t1;
create table t1 (c varchar(30) character set utf8mb4 collate utf8mb4_bin, unique(c(10)));
insert into t1 values ('1'),('2'),('3'),('x'),('y'),('z');
insert into t1 values ('aaaaaaaaaa');
insert into t1 values ('aaaaaaaaaaa');
ERROR 23000: Duplicate entry 'aaaaaaaaaa' for key 'c'
insert into t1 values ('aaaaaaaaaaaa');
ERROR 23000: Duplicate entry 'aaaaaaaaaa' for key 'c'
insert into t1 values (repeat('b',20));
select c c1 from t1 where c='1';
c1
1
select c c2 from t1 where c='2';
c2
2
select c c3 from t1 where c='3';
c3
3
select c cx from t1 where c='x';
cx
x
select c cy from t1 where c='y';
cy
y
select c cz from t1 where c='z';
cz
z
select c ca10 from t1 where c='aaaaaaaaaa';
ca10
aaaaaaaaaa
select c cb20 from t1 where c=repeat('b',20);
cb20
bbbbbbbbbbbbbbbbbbbb
drop table t1;
create table t1 (c char(3) character set utf8mb4 collate utf8mb4_bin, unique (c(2)));
insert into t1 values ('1'),('2'),('3'),('4'),('x'),('y'),('z');
insert into t1 values ('a');
insert into t1 values ('aa');
insert into t1 values ('aaa');
ERROR 23000: Duplicate entry 'aa' for key 'c'
insert into t1 values ('b');
insert into t1 values ('bb');
insert into t1 values ('bbb');
ERROR 23000: Duplicate entry 'bb' for key 'c'
insert into t1 values ('а');
insert into t1 values ('аа');
insert into t1 values ('ааа');
ERROR 23000: Duplicate entry 'аа' for key 'c'
insert into t1 values ('б');
insert into t1 values ('бб');
insert into t1 values ('ббб');
ERROR 23000: Duplicate entry 'бб' for key 'c'
insert into t1 values ('ꪪ');
insert into t1 values ('ꪪꪪ');
insert into t1 values ('ꪪꪪꪪ');
ERROR 23000: Duplicate entry 'ꪪꪪ' for key 'c'
drop table t1;
create table t1 (
c char(10) character set utf8mb4 collate utf8mb4_bin,
unique key a using hash (c(1))
) engine=heap;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c` char(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin DEFAULT NULL,
UNIQUE KEY `a` (`c`(1)) USING HASH
) ENGINE=MEMORY DEFAULT CHARSET=latin1
insert into t1 values ('a'),('b'),('c'),('d'),('e'),('f');
insert into t1 values ('aa');
ERROR 23000: Duplicate entry 'a' for key 'a'
insert into t1 values ('aaa');
ERROR 23000: Duplicate entry 'a' for key 'a'
insert into t1 values ('б');
insert into t1 values ('бб');
ERROR 23000: Duplicate entry 'б' for key 'a'
insert into t1 values ('ббб');
ERROR 23000: Duplicate entry 'б' for key 'a'
select c as c_all from t1 order by c;
c_all
a
b
c
d
e
f
б
select c as c_a from t1 where c='a';
c_a
a
select c as c_a from t1 where c='б';
c_a
б
drop table t1;
create table t1 (
c char(10) character set utf8mb4 collate utf8mb4_bin,
unique key a using btree (c(1))
) engine=heap;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c` char(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin DEFAULT NULL,
UNIQUE KEY `a` (`c`(1)) USING BTREE
) ENGINE=MEMORY DEFAULT CHARSET=latin1
insert into t1 values ('a'),('b'),('c'),('d'),('e'),('f');
insert into t1 values ('aa');
ERROR 23000: Duplicate entry 'a' for key 'a'
insert into t1 values ('aaa');
ERROR 23000: Duplicate entry 'a' for key 'a'
insert into t1 values ('б');
insert into t1 values ('бб');
ERROR 23000: Duplicate entry 'б' for key 'a'
insert into t1 values ('ббб');
ERROR 23000: Duplicate entry 'б' for key 'a'
select c as c_all from t1 order by c;
c_all
a
b
c
d
e
f
б
select c as c_a from t1 where c='a';
c_a
a
select c as c_a from t1 where c='б';
c_a
б
drop table t1;
create table t1 (
c char(10) character set utf8mb4 collate utf8mb4_bin,
unique key a (c(1))
) engine=innodb;
insert into t1 values ('a'),('b'),('c'),('d'),('e'),('f');
insert into t1 values ('aa');
ERROR 23000: Duplicate entry 'a' for key 'a'
insert into t1 values ('aaa');
ERROR 23000: Duplicate entry 'a' for key 'a'
insert into t1 values ('б');
insert into t1 values ('бб');
ERROR 23000: Duplicate entry 'б' for key 'a'
insert into t1 values ('ббб');
ERROR 23000: Duplicate entry 'б' for key 'a'
select c as c_all from t1 order by c;
c_all
a
b
c
d
e
f
б
select c as c_a from t1 where c='a';
c_a
a
select c as c_a from t1 where c='б';
c_a
б
drop table t1;
create table t1 (
str varchar(255) character set utf8mb4 not null,
key str (str(2))
) engine=myisam;
INSERT INTO t1 VALUES ('str');
INSERT INTO t1 VALUES ('str2');
select * from t1 where str='str';
str
str
drop table t1;
create table t1 (
str varchar(255) character set utf8mb4 not null,
key str (str(2))
) engine=innodb;
INSERT INTO t1 VALUES ('str');
INSERT INTO t1 VALUES ('str2');
select * from t1 where str='str';
str
str
drop table t1;
create table t1 (
str varchar(255) character set utf8mb4 not null,
key str using btree (str(2))
) engine=heap;
INSERT INTO t1 VALUES ('str');
INSERT INTO t1 VALUES ('str2');
select * from t1 where str='str';
str
str
drop table t1;
create table t1 (
str varchar(255) character set utf8mb4 not null,
key str using hash (str(2))
) engine=heap;
INSERT INTO t1 VALUES ('str');
INSERT INTO t1 VALUES ('str2');
select * from t1 where str='str';
str
str
drop table t1;
create table t1 (
str varchar(255) character set utf8mb4 not null,
key str (str(2))
) engine=innodb;
INSERT INTO t1 VALUES ('str');
INSERT INTO t1 VALUES ('str2');
select * from t1 where str='str';
str
str
drop table t1;
CREATE TABLE t1 (a varchar(32) BINARY) CHARACTER SET utf8mb4;
INSERT INTO t1 VALUES ('test');
SELECT a FROM t1 WHERE a LIKE '%te';
a
DROP TABLE t1;
SET NAMES utf8mb4;
CREATE TABLE t1 (
subject varchar(255) character set utf8mb4 collate utf8mb4_unicode_ci,
p varchar(15) character set utf8mb4
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t1 VALUES ('谷川俊二と申しますが、インターネット予約の会員登録をしましたところ、メールアドレスを間違えてしまい会員ＩＤが受け取ることが出来ませんでした。間違えアドレスはtani-shun@n.vodafone.ne.jpを書き込みました。どうすればよいですか？ その他、住所等は間違えありません。連絡ください。よろしくお願いします。m(__)m','040312-000057');
INSERT INTO t1 VALUES ('aaa','bbb');
SELECT length(subject) FROM t1;
length(subject)
432
3
SELECT length(subject) FROM t1 ORDER BY 1;
length(subject)
3
432
DROP TABLE t1;
CREATE TABLE t1 (
id int unsigned NOT NULL auto_increment,
list_id smallint unsigned NOT NULL,
term TEXT NOT NULL,
PRIMARY KEY(id),
INDEX(list_id, term(4))
) ENGINE=MYISAM CHARSET=utf8mb4;
INSERT INTO t1 SET list_id = 1, term = "letterc";
INSERT INTO t1 SET list_id = 1, term = "letterb";
INSERT INTO t1 SET list_id = 1, term = "lettera";
INSERT INTO t1 SET list_id = 1, term = "letterd";
SELECT id FROM t1 WHERE (list_id = 1) AND (term = "letterc");
id
1
SELECT id FROM t1 WHERE (list_id = 1) AND (term = "letterb");
id
2
SELECT id FROM t1 WHERE (list_id = 1) AND (term = "lettera");
id
3
SELECT id FROM t1 WHERE (list_id = 1) AND (term = "letterd");
id
4
DROP TABLE t1;
SET NAMES latin1;
CREATE TABLE t1 (
id int unsigned NOT NULL auto_increment,
list_id smallint unsigned NOT NULL,
term text NOT NULL,
PRIMARY KEY(id),
INDEX(list_id, term(19))
) ENGINE=MyISAM CHARSET=utf8mb4;
INSERT INTO t1 set list_id = 1, term = "test�test";
INSERT INTO t1 set list_id = 1, term = "testetest";
INSERT INTO t1 set list_id = 1, term = "test�test";
SELECT id, term FROM t1 where (list_id = 1) AND (term = "test�test");
id term
1 test�test
2 testetest
3 test�test
SELECT id, term FROM t1 where (list_id = 1) AND (term = "testetest");
id term
1 test�test
2 testetest
3 test�test
SELECT id, term FROM t1 where (list_id = 1) AND (term = "test�test");
id term
1 test�test
2 testetest
3 test�test
DROP TABLE t1;
set names utf8mb4;
create table t1 (
a int primary key,
b varchar(6),
index b3(b(3))
) engine=innodb character set=utf8mb4;
insert into t1 values(1,'foo'),(2,'foobar');
select * from t1 where b like 'foob%';
a b
2 foobar
alter table t1 engine=innodb;
select * from t1 where b like 'foob%';
a b
2 foobar
drop table t1;
create table t1 (
a enum('петя','вася','анюта') character set utf8mb4 not null default 'анюта',
b set('петя','вася','анюта') character set utf8mb4 not null default 'анюта'
);
create table t2 select concat(a,_utf8mb4'') as a, concat(b,_utf8mb4'')as b from t1;
show create table t2;
Table Create Table
t2 CREATE TABLE `t2` (
`a` varchar(5) CHARACTER SET utf8mb4 NOT NULL DEFAULT '',
`b` varchar(15) CHARACTER SET utf8mb4 NOT NULL DEFAULT ''
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t2;
drop table t1;
select 'c' like '\_' as want0;
want0
0
SELECT SUBSTR('вася',-2);
SUBSTR('вася',-2)
ся
create table t1 (id integer, a varchar(100) character set utf8mb4 collate utf8mb4_unicode_ci);
insert into t1 values (1, 'Test');
select * from t1 where soundex(a) = soundex('Test');
id a
1 Test
select * from t1 where soundex(a) = soundex('TEST');
id a
1 Test
select * from t1 where soundex(a) = soundex('test');
id a
1 Test
drop table t1;
select soundex(_utf8mb4 0xE99885E8A788E99A8FE697B6E69BB4E696B0E79A84E696B0E997BB);
soundex(_utf8mb4 0xE99885E8A788E99A8FE697B6E69BB4E696B0E79A84E696B0E997BB)
阅000
select hex(soundex(_utf8mb4 0xE99885E8A788E99A8FE697B6E69BB4E696B0E79A84E696B0E997BB));
hex(soundex(_utf8mb4 0xE99885E8A788E99A8FE697B6E69BB4E696B0E79A84E696B0E997BB))
E99885303030
select soundex(_utf8mb4 0xD091D092D093);
soundex(_utf8mb4 0xD091D092D093)
Б000
select hex(soundex(_utf8mb4 0xD091D092D093));
hex(soundex(_utf8mb4 0xD091D092D093))
D091303030
SET collation_connection='utf8mb4_general_ci';
create table t1 select repeat('a',4000) a;
delete from t1;
insert into t1 values ('a'), ('a '), ('a\t');
select collation(a),hex(a) from t1 order by a;
collation(a) hex(a)
utf8mb4_general_ci 6109
utf8mb4_general_ci 61
utf8mb4_general_ci 6120
drop table t1;
select @@collation_connection;
@@collation_connection
utf8mb4_general_ci
create table t1 ROW_FORMAT=DYNAMIC select repeat('a',50) as c1 ;
insert into t1 values('abcdef');
insert into t1 values('_bcdef');
insert into t1 values('a_cdef');
insert into t1 values('ab_def');
insert into t1 values('abc_ef');
insert into t1 values('abcd_f');
insert into t1 values('abcde_');
select c1 as c1u from t1 where c1 like 'ab\_def';
c1u
ab_def
select c1 as c2h from t1 where c1 like 'ab#_def' escape '#';
c2h
ab_def
drop table t1;
"BEGIN ctype_german.inc"
drop table if exists t1;
create table t1 as select repeat(' ', 64) as s1;
select collation(s1) from t1;
collation(s1)
utf8mb4_general_ci
delete from t1;
INSERT INTO t1 VALUES ('ud'),('uf');
INSERT INTO t1 VALUES ('od'),('of');
INSERT INTO t1 VALUES ('e');
INSERT INTO t1 VALUES ('ad'),('af');
insert into t1 values ('a'),('ae'),(_latin1 0xE4);
insert into t1 values ('o'),('oe'),(_latin1 0xF6);
insert into t1 values ('s'),('ss'),(_latin1 0xDF);
insert into t1 values ('u'),('ue'),(_latin1 0xFC);
INSERT INTO t1 VALUES (_latin1 0xE6), (_latin1 0xC6);
INSERT INTO t1 VALUES (_latin1 0x9C), (_latin1 0x8C);
select s1, hex(s1) from t1 order by s1, binary s1;
s1 hex(s1)
a 61
ä C3A4
ad 6164
ae 6165
af 6166
e 65
o 6F
ö C3B6
od 6F64
oe 6F65
of 6F66
s 73
ß C39F
ss 7373
u 75
ü C3BC
ud 7564
ue 7565
uf 7566
Æ C386
æ C3A6
ΠC592
œ C593
select group_concat(s1 order by binary s1) from t1 group by s1;
group_concat(s1 order by binary s1)
a,ä
ad
ae
af
e
o,ö
od
oe
of
s,ß
ss
u,ü
ud
ue
uf
Æ,æ
Œ,œ
SELECT s1, hex(s1), hex(weight_string(s1)) FROM t1 ORDER BY s1, BINARY(s1);
s1 hex(s1) hex(weight_string(s1))
a 61 0041
ä C3A4 0041
ad 6164 00410044
ae 6165 00410045
af 6166 00410046
e 65 0045
o 6F 004F
ö C3B6 004F
od 6F64 004F0044
oe 6F65 004F0045
of 6F66 004F0046
s 73 0053
ß C39F 0053
ss 7373 00530053
u 75 0055
ü C3BC 0055
ud 7564 00550044
ue 7565 00550045
uf 7566 00550046
Æ C386 00C6
æ C3A6 00C6
ΠC592 0152
œ C593 0152
SELECT s1, hex(s1) FROM t1 WHERE s1='ae' ORDER BY s1, BINARY(s1);
s1 hex(s1)
ae 6165
drop table t1;
"END ctype_german.inc"
SET collation_connection='utf8mb4_bin';
create table t1 select repeat('a',4000) a;
delete from t1;
insert into t1 values ('a'), ('a '), ('a\t');
select collation(a),hex(a) from t1 order by a;
collation(a) hex(a)
utf8mb4_bin 6109
utf8mb4_bin 61
utf8mb4_bin 6120
drop table t1;
#
# Bug#55980 Character sets: supplementary character _bin ordering is wrong
#
CREATE TABLE t1 AS SELECT REPEAT('a',1) AS a LIMIT 0;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` varchar(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL DEFAULT ''
) ENGINE=MyISAM DEFAULT CHARSET=latin1
INSERT INTO t1 VALUES (_utf8mb4 0xEFBE9D),(_utf8mb4 0xF0908E84);
INSERT INTO t1 VALUES (_utf8mb4 0xCE85),(_utf8mb4 0xF4808080);
SELECT HEX(a), HEX(CONVERT(a USING utf8mb4)) FROM t1 ORDER BY a;
HEX(a) HEX(CONVERT(a USING utf8mb4))
CE85 CE85
EFBE9D EFBE9D
F0908E84 F0908E84
F4808080 F4808080
ALTER TABLE t1 ADD KEY(a);
SELECT HEX(a), HEX(CONVERT(a USING utf8mb4)) FROM t1 ORDER BY a;
HEX(a) HEX(CONVERT(a USING utf8mb4))
CE85 CE85
EFBE9D EFBE9D
F0908E84 F0908E84
F4808080 F4808080
# Additional test for bug#37244 Character sets: short utf8_bin weight_string value
SELECT HEX(a), HEX(WEIGHT_STRING(a)) FROM t1 ORDER BY a;
HEX(a) HEX(WEIGHT_STRING(a))
CE85 000385
EFBE9D 00FF9D
F0908E84 010384
F4808080 100000
DROP TABLE IF EXISTS t1;
#
# BUG#16691598 - ORDER BY LOWER(COLUMN) PRODUCES
# OUT-OF-ORDER RESULTS
#
CREATE TABLE t1 SELECT ('a a') as n;
INSERT INTO t1 VALUES('a b');
SELECT * FROM t1 ORDER BY LOWER(n) ASC;
n
a a
a b
SELECT * FROM t1 ORDER BY LOWER(n) DESC;
n
a b
a a
DROP TABLE t1;
select @@collation_connection;
@@collation_connection
utf8mb4_bin
create table t1 ROW_FORMAT=DYNAMIC select repeat('a',50) as c1 ;
insert into t1 values('abcdef');
insert into t1 values('_bcdef');
insert into t1 values('a_cdef');
insert into t1 values('ab_def');
insert into t1 values('abc_ef');
insert into t1 values('abcd_f');
insert into t1 values('abcde_');
select c1 as c1u from t1 where c1 like 'ab\_def';
c1u
ab_def
select c1 as c2h from t1 where c1 like 'ab#_def' escape '#';
c2h
ab_def
drop table t1;
CREATE TABLE t1 (
user varchar(255) NOT NULL default ''
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
INSERT INTO t1 VALUES ('one'),('two');
SELECT CHARSET('a');
CHARSET('a')
utf8mb4
SELECT user, CONCAT('<', user, '>') AS c FROM t1;
user c
one <one>
two <two>
DROP TABLE t1;
create table t1 (f1 varchar(1) not null) default charset utf8mb4;
insert into t1 values (''), ('');
select concat(concat(_latin1'->',f1),_latin1'<-') from t1;
concat(concat(_latin1'->',f1),_latin1'<-')
-><-
-><-
drop table t1;
select convert(_koi8r'�' using utf8mb4) < convert(_koi8r'�' using utf8mb4);
convert(_koi8r'?' using utf8mb4) < convert(_koi8r'?' using utf8mb4)
1
set names latin1;
create table t1 (a varchar(10)) character set utf8mb4;
insert into t1 values ('test');
select ifnull(a,'') from t1;
ifnull(a,'')
test
drop table t1;
select repeat(_utf8mb4'+',3) as h union select NULL;
h
+++
NULL
select ifnull(NULL, _utf8mb4'string');
ifnull(NULL, _utf8mb4'string')
string
set names utf8mb4;
create table t1 (s1 char(5) character set utf8mb4 collate utf8mb4_lithuanian_ci);
insert into t1 values ('I'),('K'),('Y');
select * from t1 where s1 < 'K' and s1 = 'Y';
s1
I
Y
select * from t1 where 'K' > s1 and s1 = 'Y';
s1
I
Y
drop table t1;
create table t1 (s1 char(5) character set utf8mb4 collate utf8mb4_czech_ci);
insert into t1 values ('c'),('d'),('h'),('ch'),('CH'),('cH'),('Ch'),('i');
select * from t1 where s1 > 'd' and s1 = 'CH';
s1
ch
CH
Ch
select * from t1 where 'd' < s1 and s1 = 'CH';
s1
ch
CH
Ch
select * from t1 where s1 = 'cH' and s1 <> 'ch';
s1
cH
select * from t1 where 'cH' = s1 and s1 <> 'ch';
s1
cH
drop table t1;
create table t1 (a varchar(255)) default character set utf8mb4;
insert into t1 values (1.0);
drop table t1;
create table t1 (
id int not null,
city varchar(20) not null,
key (city(7),id)
) character set=utf8mb4;
insert into t1 values (1,'Durban North');
insert into t1 values (2,'Durban');
select * from t1 where city = 'Durban';
id city
2 Durban
select * from t1 where city = 'Durban ';
id city
2 Durban
drop table t1;
create table t1 (x set('A', 'B') default 0) character set utf8mb4;
ERROR 42000: Invalid default value for 'x'
create table t1 (x enum('A', 'B') default 0) character set utf8mb4;
ERROR 42000: Invalid default value for 'x'
SET NAMES UTF8;
CREATE TABLE t1 (
`id` int(20) NOT NULL auto_increment,
`country` varchar(100) NOT NULL default '',
`shortcode` varchar(100) NOT NULL default '',
`operator` varchar(100) NOT NULL default '',
`momid` varchar(30) NOT NULL default '',
`keyword` varchar(160) NOT NULL default '',
`content` varchar(160) NOT NULL default '',
`second_token` varchar(160) default NULL,
`gateway_id` int(11) NOT NULL default '0',
`created` datetime NOT NULL default '0000-00-00 00:00:00',
`msisdn` varchar(15) NOT NULL default '',
PRIMARY KEY (`id`),
UNIQUE KEY `MSCCSPK_20030521130957121` (`momid`),
KEY `IX_mobile_originated_message_keyword` (`keyword`),
KEY `IX_mobile_originated_message_created` (`created`),
KEY `IX_mobile_originated_message_support` (`msisdn`,`momid`,`keyword`,`gateway_id`,`created`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4;
INSERT INTO t1 VALUES
(1,'blah','464','aaa','fkc1c9ilc20x0hgae7lx6j09','ERR','ERR Имри.Афимим.Аеимимримдмримрмрирор имримримримр имридм ирбднримрфмририримрфмфмим.Ад.Д имдимримрад.Адимримримрмдиримримримр м.Дадимфшьмримд им.Адимимрн имадми','ИМРИ.АФИМИМ.АЕИМИМРИМДМРИМРМРИРОР',3,'2005-06-01 17:30:43','1234567890'),
(2,'blah','464','aaa','haxpl2ilc20x00bj4tt2m5ti','11','11 g','G',3,'2005-06-02 22:43:10','1234567890');
CREATE TABLE t2 (
`msisdn` varchar(15) NOT NULL default '',
`operator_id` int(11) NOT NULL default '0',
`created` datetime NOT NULL default '0000-00-00 00:00:00',
UNIQUE KEY `PK_user` (`msisdn`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
INSERT INTO t2 VALUES ('1234567890',2,'2005-05-24 13:53:25');
SELECT content, t2.msisdn FROM t1, t2 WHERE t1.msisdn = '1234567890';
content msisdn
ERR Имри.Афимим.Аеимимримдмримрмрирор имримримримр имридм ирбднримрфмририримрфмфмим.Ад.Д имдимримрад.Адимримримрмдиримримримр м.Дадимфшьмримд им.Адимимрн имадми 1234567890
11 g 1234567890
DROP TABLE t1,t2;
create table t1 (a char(20) character set utf8mb4);
insert into t1 values ('123456'),('андрей');
alter table t1 modify a char(2) character set utf8mb4;
Warnings:
Warning 1265 Data truncated for column 'a' at row 1
Warning 1265 Data truncated for column 'a' at row 2
select char_length(a), length(a), a from t1 order by a;
char_length(a) length(a) a
2 2 12
2 4 ан
drop table t1;
set names utf8mb4;
select 'andre%' like 'andreñ%' escape 'ñ';
'andre%' like 'andreñ%' escape 'ñ'
1
set names utf8mb4;
select 'a\\' like 'a\\';
'a\\' like 'a\\'
1
select 'aa\\' like 'a%\\';
'aa\\' like 'a%\\'
1
create table t1 (a char(10), key(a)) character set utf8mb4;
insert into t1 values ("a"),("abc"),("abcd"),("hello"),("test");
select * from t1 where a like "abc%";
a
abc
abcd
select * from t1 where a like concat("abc","%");
a
abc
abcd
select * from t1 where a like "ABC%";
a
abc
abcd
select * from t1 where a like "test%";
a
test
select * from t1 where a like "te_t";
a
test
select * from t1 where a like "%a%";
a
a
abc
abcd
select * from t1 where a like "%abcd%";
a
abcd
select * from t1 where a like "%abc\d%";
a
abcd
drop table t1;
CREATE TABLE t1 (
a varchar(255) NOT NULL default '',
KEY a (a)
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE utf8mb4_general_ci;
Warnings:
Warning 1071 Specified key was too long; max key length is 1000 bytes
insert into t1 values (_utf8mb4 0xe880bd);
insert into t1 values (_utf8mb4 0x5b);
select hex(a) from t1;
hex(a)
E880BD
5B
drop table t1;
set names 'latin1';
create table t1 (a varchar(255)) default charset=utf8mb4;
select * from t1 where find_in_set('-1', a);
a
drop table t1;
create table t1 (a int);
insert into t1 values (48),(49),(50);
set names utf8mb4;
select distinct char(a) from t1;
char(a)
0
1
2
drop table t1;
CREATE TABLE t1 (t TINYTEXT CHARACTER SET utf8mb4);
INSERT INTO t1 VALUES(REPEAT('a', 100));
CREATE TEMPORARY TABLE t2 SELECT COALESCE(t) AS bug FROM t1;
SELECT LENGTH(bug) FROM t2;
LENGTH(bug)
100
DROP TABLE t2;
DROP TABLE t1;
CREATE TABLE t1 (item varchar(255)) default character set utf8mb4;
INSERT INTO t1 VALUES (N'\\');
INSERT INTO t1 VALUES (_utf8mb4'\\');
INSERT INTO t1 VALUES (N'Cote d\'Ivoire');
INSERT INTO t1 VALUES (_utf8mb4'Cote d\'Ivoire');
SELECT item FROM t1 ORDER BY item;
item
Cote d'Ivoire
Cote d'Ivoire
\
\
DROP TABLE t1;
SET NAMES utf8mb4;
DROP TABLE IF EXISTS t1;
Warnings:
Note 1051 Unknown table 'test.t1'
CREATE TABLE t1(a VARCHAR(255), KEY(a)) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4;
Warnings:
Warning 1071 Specified key was too long; max key length is 1000 bytes
INSERT INTO t1 VALUES('uuABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb');
INSERT INTO t1 VALUES('uu');
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
INSERT INTO t1 VALUES('uU');
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
INSERT INTO t1 VALUES('uu');
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
INSERT INTO t1 VALUES('uuABC');
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
INSERT INTO t1 VALUES('UuABC');
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
INSERT INTO t1 VALUES('uuABC');
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
alter table t1 add b int;
INSERT INTO t1 VALUES('uuABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',1);
INSERT INTO t1 VALUES('uuABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',2);
delete from t1 where b=1;
INSERT INTO t1 VALUES('UUABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',1);
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
INSERT INTO t1 VALUES('uuABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',3);
INSERT INTO t1 VALUES('uuABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',4);
delete from t1 where b=3;
INSERT INTO t1 VALUES('uUABCDEFGHIGKLMNOPRSTUVWXYZ̈bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb',3);
check table t1;
Table Op Msg_type Msg_text
test.t1 check status OK
drop table t1;
set names utf8mb4;
create table t1 (s1 char(5) character set utf8mb4);
insert into t1 values
('a'),('b'),(null),('ペテルグル'),('ü'),('Y');
create index it1 on t1 (s1);
select s1 as before_delete_general_ci from t1 where s1 like 'ペテ%';
before_delete_general_ci
ペテルグル
delete from t1 where s1 = 'Y';
select s1 as after_delete_general_ci from t1 where s1 like 'ペテ%';
after_delete_general_ci
ペテルグル
drop table t1;
set names utf8mb4;
create table t1 (s1 char(5) character set utf8mb4 collate utf8mb4_unicode_ci);
insert into t1 values
('a'),('b'),(null),('ペテルグル'),('ü'),('Y');
create index it1 on t1 (s1);
select s1 as before_delete_unicode_ci from t1 where s1 like 'ペテ%';
before_delete_unicode_ci
ペテルグル
delete from t1 where s1 = 'Y';
select s1 as after_delete_unicode_ci from t1 where s1 like 'ペテ%';
after_delete_unicode_ci
ペテルグル
drop table t1;
set names utf8mb4;
create table t1 (s1 char(5) character set utf8mb4 collate utf8mb4_bin);
insert into t1 values
('a'),('b'),(null),('ペテルグル'),('ü'),('Y');
create index it1 on t1 (s1);
select s1 as before_delete_bin from t1 where s1 like 'ペテ%';
before_delete_bin
ペテルグル
delete from t1 where s1 = 'Y';
select s1 as after_delete_bin from t1 where s1 like 'ペテ%';
after_delete_bin
ペテルグル
drop table t1;
set names utf8mb4;
create table t1 (a varchar(30) not null primary key)
engine=innodb default character set utf8mb4 collate utf8mb4_general_ci;
insert into t1 values ('あいうえおかきくけこさしすせそ');
insert into t1 values ('さしすせそかきくけこあいうえお');
select a as gci1 from t1 where a like 'さしすせそかきくけこあいうえお%';
gci1
さしすせそかきくけこあいうえお
select a as gci2 from t1 where a like 'あいうえおかきくけこさしすせそ';
gci2
あいうえおかきくけこさしすせそ
drop table t1;
set names utf8mb4;
create table t1 (a varchar(30) not null primary key)
engine=innodb default character set utf8mb4 collate utf8mb4_unicode_ci;
insert into t1 values ('あいうえおかきくけこさしすせそ');
insert into t1 values ('さしすせそかきくけこあいうえお');
select a as uci1 from t1 where a like 'さしすせそかきくけこあいうえお%';
uci1
さしすせそかきくけこあいうえお
select a as uci2 from t1 where a like 'あいうえおかきくけこさしすせそ';
uci2
あいうえおかきくけこさしすせそ
drop table t1;
set names utf8mb4;
create table t1 (a varchar(30) not null primary key)
engine=innodb default character set utf8mb4 collate utf8mb4_bin;
insert into t1 values ('あいうえおかきくけこさしすせそ');
insert into t1 values ('さしすせそかきくけこあいうえお');
select a as bin1 from t1 where a like 'さしすせそかきくけこあいうえお%';
bin1
さしすせそかきくけこあいうえお
select a as bin2 from t1 where a like 'あいうえおかきくけこさしすせそ';
bin2
あいうえおかきくけこさしすせそ
drop table t1;
SET NAMES utf8mb4;
CREATE TABLE t1 (id int PRIMARY KEY,
a varchar(16) collate utf8mb4_unicode_ci NOT NULL default '',
b int,
f varchar(128) default 'XXX',
INDEX (a(4))
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
INSERT INTO t1(id, a, b) VALUES
(1, 'cccc', 50), (2, 'cccc', 70), (3, 'cccc', 30),
(4, 'cccc', 30), (5, 'cccc', 20), (6, 'bbbbbb', 40),
(7, 'dddd', 30), (8, 'aaaa', 10), (9, 'aaaa', 50),
(10, 'eeeee', 40), (11, 'bbbbbb', 60);
SELECT id, a, b FROM t1;
id a b
1 cccc 50
2 cccc 70
3 cccc 30
4 cccc 30
5 cccc 20
6 bbbbbb 40
7 dddd 30
8 aaaa 10
9 aaaa 50
10 eeeee 40
11 bbbbbb 60
SELECT id, a, b FROM t1 WHERE a BETWEEN 'aaaa' AND 'bbbbbb';
id a b
8 aaaa 10
9 aaaa 50
6 bbbbbb 40
11 bbbbbb 60
SELECT id, a FROM t1 WHERE a='bbbbbb';
id a
6 bbbbbb
11 bbbbbb
SELECT id, a FROM t1 WHERE a='bbbbbb' ORDER BY b;
id a
6 bbbbbb
11 bbbbbb
DROP TABLE t1;
SET NAMES utf8mb4;
CREATE TABLE t1 (
a CHAR(13) DEFAULT '',
INDEX(a)
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;
INSERT INTO t1 VALUES
('Käli Käli 2-4'), ('Käli Käli 2-4'),
('Käli Käli 2+4'), ('Käli Käli 2+4'),
('Käli Käli 2-6'), ('Käli Käli 2-6');
INSERT INTO t1 SELECT * FROM t1;
CREATE TABLE t2 (
a CHAR(13) DEFAULT '',
INDEX(a)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_general_ci;
INSERT INTO t2 VALUES
('Kali Kali 2-4'), ('Kali Kali 2-4'),
('Kali Kali 2+4'), ('Kali Kali 2+4'),
('Kali Kali 2-6'), ('Kali Kali 2-6');
INSERT INTO t2 SELECT * FROM t2;
SELECT a FROM t1 WHERE a LIKE 'Käli Käli 2+4';
a
Käli Käli 2+4
Käli Käli 2+4
Käli Käli 2+4
Käli Käli 2+4
SELECT a FROM t2 WHERE a LIKE 'Kali Kali 2+4';
a
Kali Kali 2+4
Kali Kali 2+4
Kali Kali 2+4
Kali Kali 2+4
EXPLAIN SELECT a FROM t1 WHERE a LIKE 'Käli Käli 2+4';
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range a a 53 NULL 4 Using where; Using index
EXPLAIN SELECT a FROM t1 WHERE a = 'Käli Käli 2+4';
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref a a 53 const 4 Using where; Using index
EXPLAIN SELECT a FROM t2 WHERE a LIKE 'Kali Kali 2+4';
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 range a a 14 NULL 4 Using where; Using index
EXPLAIN SELECT a FROM t2 WHERE a = 'Kali Kali 2+4';
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ref a a 14 const 4 Using where; Using index
DROP TABLE t1,t2;
CREATE TABLE t1 (
a char(255) DEFAULT '',
KEY(a(10))
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;
INSERT INTO t1 VALUES ('Käli Käli 2-4');
SELECT * FROM t1 WHERE a LIKE 'Käli Käli 2%';
a
Käli Käli 2-4
INSERT INTO t1 VALUES ('Käli Käli 2-4');
SELECT * FROM t1 WHERE a LIKE 'Käli Käli 2%';
a
Käli Käli 2-4
Käli Käli 2-4
DROP TABLE t1;
CREATE TABLE t1 (
a char(255) DEFAULT ''
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;
INSERT INTO t1 VALUES ('Käli Käli 2-4');
INSERT INTO t1 VALUES ('Käli Käli 2-4');
SELECT * FROM t1 WHERE a LIKE 'Käli Käli 2%';
a
Käli Käli 2-4
Käli Käli 2-4
ALTER TABLE t1 ADD KEY (a(10));
SELECT * FROM t1 WHERE a LIKE 'Käli Käli 2%';
a
Käli Käli 2-4
Käli Käli 2-4
DROP TABLE t1;
SET NAMES latin2;
CREATE TABLE t1 (
id int(11) NOT NULL default '0',
tid int(11) NOT NULL default '0',
val text NOT NULL,
INDEX idx(tid, val(10))
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4;
INSERT INTO t1 VALUES
(40988,72,'VOLN� ADSL'),(41009,72,'VOLN� ADSL'),
(41032,72,'VOLN� ADSL'),(41038,72,'VOLN� ADSL'),
(41063,72,'VOLN� ADSL'),(41537,72,'VOLN� ADSL Office'),
(42141,72,'VOLN� ADSL'),(42565,72,'VOLN� ADSL Combi'),
(42749,72,'VOLN� ADSL'),(44205,72,'VOLN� ADSL');
SELECT * FROM t1 WHERE tid=72 and val LIKE 'VOLNY ADSL';
id tid val
40988 72 VOLN� ADSL
41009 72 VOLN� ADSL
41032 72 VOLN� ADSL
41038 72 VOLN� ADSL
41063 72 VOLN� ADSL
42141 72 VOLN� ADSL
42749 72 VOLN� ADSL
44205 72 VOLN� ADSL
SELECT * FROM t1 WHERE tid=72 and val LIKE 'VOLN� ADSL';
id tid val
40988 72 VOLN� ADSL
41009 72 VOLN� ADSL
41032 72 VOLN� ADSL
41038 72 VOLN� ADSL
41063 72 VOLN� ADSL
42141 72 VOLN� ADSL
42749 72 VOLN� ADSL
44205 72 VOLN� ADSL
SELECT * FROM t1 WHERE tid=72 and val LIKE '%VOLN� ADSL';
id tid val
40988 72 VOLN� ADSL
41009 72 VOLN� ADSL
41032 72 VOLN� ADSL
41038 72 VOLN� ADSL
41063 72 VOLN� ADSL
42141 72 VOLN� ADSL
42749 72 VOLN� ADSL
44205 72 VOLN� ADSL
ALTER TABLE t1 DROP KEY idx;
ALTER TABLE t1 ADD KEY idx (tid,val(11));
SELECT * FROM t1 WHERE tid=72 and val LIKE 'VOLN� ADSL';
id tid val
40988 72 VOLN� ADSL
41009 72 VOLN� ADSL
41032 72 VOLN� ADSL
41038 72 VOLN� ADSL
41063 72 VOLN� ADSL
42141 72 VOLN� ADSL
42749 72 VOLN� ADSL
44205 72 VOLN� ADSL
DROP TABLE t1;
create table t1(a char(200) collate utf8mb4_unicode_ci NOT NULL default '')
default charset=utf8mb4 collate=utf8mb4_unicode_ci;
insert into t1 values (unhex('65')), (unhex('C3A9')), (unhex('65'));
explain select distinct a from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using temporary
select distinct a from t1;
a
e
explain select a from t1 group by a;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ALL NULL NULL NULL NULL 3 Using temporary; Using filesort
select a from t1 group by a;
a
e
drop table t1;
create table t1(a char(10)) default charset utf8mb4;
insert into t1 values ('123'), ('456');
explain
select substr(Z.a,-1), Z.a from t1 as Y join t1 as Z on Y.a=Z.a order by 1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE Y ALL NULL NULL NULL NULL 2 Using temporary; Using filesort
1 SIMPLE Z ALL NULL NULL NULL NULL 2 Using where; Using join buffer (Block Nested Loop)
select substr(Z.a,-1), Z.a from t1 as Y join t1 as Z on Y.a=Z.a order by 1;
substr(Z.a,-1) a
3 123
6 456
drop table t1;
SET CHARACTER SET utf8mb4;
SHOW VARIABLES LIKE 'character\_set\_%';
Variable_name Value
character_set_client utf8mb4
character_set_connection latin1
character_set_database latin1
character_set_filesystem binary
character_set_results utf8mb4
character_set_server latin1
character_set_system utf8
CREATE DATABASE crashtest DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_bin;
USE crashtest;
CREATE TABLE crashtest (crash char(10)) DEFAULT CHARSET=utf8mb4;
INSERT INTO crashtest VALUES ('35'), ('36'), ('37');
SELECT * FROM crashtest ORDER BY CHAR(crash USING utf8mb4);
crash
35
36
37
INSERT INTO crashtest VALUES ('-1000');
EXPLAIN SELECT * FROM crashtest ORDER BY CHAR(crash USING utf8mb4);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE crashtest ALL NULL NULL NULL NULL 4 Using filesort
SELECT * FROM crashtest ORDER BY CHAR(crash USING utf8mb4);
crash
-1000
35
36
37
Warnings:
Warning 1300 Invalid utf8mb4 character string: 'FFFFFC'
DROP TABLE crashtest;
DROP DATABASE crashtest;
USE test;
SET CHARACTER SET default;
CREATE TABLE t1(id varchar(20) NOT NULL) DEFAULT CHARSET=utf8mb4;
INSERT INTO t1 VALUES ('xxx'), ('aa'), ('yyy'), ('aa');
SELECT id FROM t1;
id
xxx
aa
yyy
aa
SELECT DISTINCT id FROM t1;
id
xxx
aa
yyy
SELECT DISTINCT id FROM t1 ORDER BY id;
id
aa
xxx
yyy
DROP TABLE t1;
create table t1 (
a varchar(26) not null
) default character set utf8mb4;
insert into t1 (a) values ('abcdefghijklmnopqrstuvwxyz');
select * from t1;
a
abcdefghijklmnopqrstuvwxyz
alter table t1 change a a varchar(20) character set utf8mb4 not null;
Warnings:
Warning 1265 Data truncated for column 'a' at row 1
select * from t1;
a
abcdefghijklmnopqrst
alter table t1 change a a char(15) character set utf8mb4 not null;
Warnings:
Warning 1265 Data truncated for column 'a' at row 1
select * from t1;
a
abcdefghijklmno
alter table t1 change a a char(10) character set utf8mb4 not null;
Warnings:
Warning 1265 Data truncated for column 'a' at row 1
select * from t1;
a
abcdefghij
alter table t1 change a a varchar(5) character set utf8mb4 not null;
Warnings:
Warning 1265 Data truncated for column 'a' at row 1
select * from t1;
a
abcde
drop table t1;
create table t1 (
a varchar(4000) not null
) default character set utf8mb4;
insert into t1 values (repeat('a',4000));
alter table t1 change a a varchar(3000) character set utf8mb4 not null;
Warnings:
Warning 1265 Data truncated for column 'a' at row 1
select length(a) from t1;
length(a)
3000
drop table t1;
set names utf8mb4;
select hex(char(1 using utf8mb4));
hex(char(1 using utf8mb4))
01
select char(0xd1,0x8f using utf8mb4);
char(0xd1,0x8f using utf8mb4)
я
select char(0xd18f using utf8mb4);
char(0xd18f using utf8mb4)
я
select char(53647 using utf8mb4);
char(53647 using utf8mb4)
я
select char(0xff,0x8f using utf8mb4);
char(0xff,0x8f using utf8mb4)
Warnings:
Warning 1300 Invalid utf8mb4 character string: 'FF8F'
select convert(char(0xff,0x8f) using utf8mb4);
convert(char(0xff,0x8f) using utf8mb4)
Warnings:
Warning 1300 Invalid utf8mb4 character string: 'FF8F'
set sql_mode=traditional;
select char(0xff,0x8f using utf8mb4);
char(0xff,0x8f using utf8mb4)
NULL
Warnings:
Warning 1300 Invalid utf8mb4 character string: 'FF8F'
select char(195 using utf8mb4);
char(195 using utf8mb4)
NULL
Warnings:
Warning 1300 Invalid utf8mb4 character string: 'C3'
select char(196 using utf8mb4);
char(196 using utf8mb4)
NULL
Warnings:
Warning 1300 Invalid utf8mb4 character string: 'C4'
select char(2557 using utf8mb4);
char(2557 using utf8mb4)
NULL
Warnings:
Warning 1300 Invalid utf8mb4 character string: 'FD'
select convert(char(0xff,0x8f) using utf8mb4);
convert(char(0xff,0x8f) using utf8mb4)
NULL
Warnings:
Warning 1300 Invalid utf8mb4 character string: 'FF8F'
select hex(convert(char(2557 using latin1) using utf8mb4));
hex(convert(char(2557 using latin1) using utf8mb4))
09C3BD
select hex(char(195));
hex(char(195))
C3
select hex(char(196));
hex(char(196))
C4
select hex(char(2557));
hex(char(2557))
09FD
set names utf8mb4;
create table t1 (a char(1)) default character set utf8mb4;
create table t2 (a char(1)) default character set utf8mb4;
insert into t1 values('a'),('a'),(0xE38182),(0xE38182);
insert into t1 values('i'),('i'),(0xE38184),(0xE38184);
select * from t1 union distinct select * from t2;
a
a
あ
i
い
drop table t1,t2;
set names utf8mb4;
create table t1 (a char(10), b varchar(10));
insert into t1 values ('bar','kostja');
insert into t1 values ('kostja','bar');
prepare my_stmt from "select * from t1 where a=?";
set @a:='bar';
execute my_stmt using @a;
a b
bar kostja
set @a:='kostja';
execute my_stmt using @a;
a b
kostja bar
set @a:=null;
execute my_stmt using @a;
a b
drop table if exists t1;
drop table if exists t1;
drop view if exists v1, v2;
set names utf8mb4;
create table t1(col1 varchar(12) character set utf8mb4 collate utf8mb4_unicode_ci);
insert into t1 values('t1_val');
create view v1 as select 'v1_val' as col1;
select coercibility(col1), collation(col1) from v1;
coercibility(col1) collation(col1)
4 utf8mb4_general_ci
create view v2 as select col1 from v1 union select col1 from t1;
select coercibility(col1), collation(col1)from v2;
coercibility(col1) collation(col1)
2 utf8mb4_unicode_ci
2 utf8mb4_unicode_ci
drop view v1, v2;
create view v1 as select 'v1_val' collate utf8mb4_swedish_ci as col1;
select coercibility(col1), collation(col1) from v1;
coercibility(col1) collation(col1)
0 utf8mb4_swedish_ci
create view v2 as select col1 from v1 union select col1 from t1;
select coercibility(col1), collation(col1) from v2;
coercibility(col1) collation(col1)
0 utf8mb4_swedish_ci
0 utf8mb4_swedish_ci
drop view v1, v2;
drop table t1;
set names utf8mb4;
create table t1 (a varchar(10) character set latin1, b int);
insert into t1 values ('a',1);
select concat(a, if(b>10, N'x', N'y')) from t1;
concat(a, if(b>10, N'x', N'y'))
ay
select concat(a, if(b>10, N'æ', N'ß')) from t1;
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation 'concat'
drop table t1;
set names utf8mb4;
create table t1 (a varchar(10) character set latin1, b int);
insert into t1 values ('a',1);
select concat(a, if(b>10, _utf8mb4'x', _utf8mb4'y')) from t1;
concat(a, if(b>10, _utf8mb4'x', _utf8mb4'y'))
ay
select concat(a, if(b>10, _utf8mb4'æ', _utf8mb4'ß')) from t1;
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (utf8mb4_general_ci,COERCIBLE) for operation 'concat'
drop table t1;
set names utf8mb4;
create table t1 (a varchar(10) character set latin1, b int);
insert into t1 values ('a',1);
select concat(a, if(b>10, _utf8mb4 0x78, _utf8mb4 0x79)) from t1;
concat(a, if(b>10, _utf8mb4 0x78, _utf8mb4 0x79))
ay
select concat(a, if(b>10, _utf8mb4 0xC3A6, _utf8mb4 0xC3AF)) from t1;
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (utf8mb4_general_ci,COERCIBLE) for operation 'concat'
drop table t1;
set names utf8mb4;
create table t1 (a varchar(10) character set latin1, b int);
insert into t1 values ('a',1);
select concat(a, if(b>10, 'x' 'x', 'y' 'y')) from t1;
concat(a, if(b>10, 'x' 'x', 'y' 'y'))
ayy
select concat(a, if(b>10, 'x' 'æ', 'y' 'ß')) from t1;
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (utf8mb4_general_ci,COERCIBLE) for operation 'concat'
drop table t1;
CREATE TABLE t1 (
colA int(11) NOT NULL,
colB varchar(255) character set utf8mb4 NOT NULL,
PRIMARY KEY (colA)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t1 (colA, colB) VALUES (1, 'foo'), (2, 'foo bar');
CREATE TABLE t2 (
colA int(11) NOT NULL,
colB varchar(255) character set utf8mb4 NOT NULL,
KEY bad (colA,colB(3))
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t2 (colA, colB) VALUES (1, 'foo'),(2, 'foo bar');
SELECT * FROM t1 JOIN t2 ON t1.colA=t2.colA AND t1.colB=t2.colB
WHERE t1.colA < 3;
colA colB colA colB
1 foo 1 foo
2 foo bar 2 foo bar
DROP TABLE t1, t2;
SELECT 'н1234567890' UNION SELECT _binary '1';
н1234567890
н1234567890
1
SELECT 'н1234567890' UNION SELECT 1;
н1234567890
н1234567890
1
SELECT '1' UNION SELECT 'н1234567890';
1
1
н1234567890
SELECT 1 UNION SELECT 'н1234567890';
1
1
н1234567890
CREATE TABLE t1 (c VARCHAR(11)) CHARACTER SET utf8mb4;
CREATE TABLE t2 (b CHAR(1) CHARACTER SET binary, i INT);
INSERT INTO t1 (c) VALUES ('н1234567890');
INSERT INTO t2 (b, i) VALUES ('1', 1);
SELECT c FROM t1 UNION SELECT b FROM t2;
c
н1234567890
1
SELECT c FROM t1 UNION SELECT i FROM t2;
c
н1234567890
1
SELECT b FROM t2 UNION SELECT c FROM t1;
b
1
н1234567890
SELECT i FROM t2 UNION SELECT c FROM t1;
i
1
н1234567890
DROP TABLE t1, t2;
set sql_mode=traditional;
select hex(char(0xFF using utf8mb4));
hex(char(0xFF using utf8mb4))
NULL
Warnings:
Warning 1300 Invalid utf8mb4 character string: 'FF'
select hex(convert(0xFF using utf8mb4));
hex(convert(0xFF using utf8mb4))
NULL
Warnings:
Warning 1300 Invalid utf8mb4 character string: 'FF'
select hex(_utf8mb4 0x616263FF);
ERROR HY000: Invalid utf8mb4 character string: 'FF'
select hex(_utf8mb4 X'616263FF');
ERROR HY000: Invalid utf8mb4 character string: 'FF'
select hex(_utf8mb4 B'001111111111');
ERROR HY000: Invalid utf8mb4 character string: 'FF'
select (_utf8mb4 X'616263FF');
ERROR HY000: Invalid utf8mb4 character string: 'FF'
set sql_mode=default;
select hex(char(0xFF using utf8mb4));
hex(char(0xFF using utf8mb4))
Warnings:
Warning 1300 Invalid utf8mb4 character string: 'FF'
select hex(convert(0xFF using utf8mb4));
hex(convert(0xFF using utf8mb4))
Warnings:
Warning 1300 Invalid utf8mb4 character string: 'FF'
select hex(_utf8mb4 0x616263FF);
ERROR HY000: Invalid utf8mb4 character string: 'FF'
select hex(_utf8mb4 X'616263FF');
ERROR HY000: Invalid utf8mb4 character string: 'FF'
select hex(_utf8mb4 B'001111111111');
ERROR HY000: Invalid utf8mb4 character string: 'FF'
select (_utf8mb4 X'616263FF');
ERROR HY000: Invalid utf8mb4 character string: 'FF'
CREATE TABLE t1 (a INT NOT NULL, b INT NOT NULL);
INSERT INTO t1 VALUES (70000, 1092), (70001, 1085), (70002, 1065);
SELECT CONVERT(a, CHAR), CONVERT(b, CHAR) FROM t1 GROUP BY b;
CONVERT(a, CHAR) CONVERT(b, CHAR)
70002 1065
70001 1085
70000 1092
SELECT CONVERT(a, CHAR), CONVERT(b, CHAR) FROM t1;
CONVERT(a, CHAR) CONVERT(b, CHAR)
70000 1092
70001 1085
70002 1065
ALTER TABLE t1 ADD UNIQUE (b);
SELECT CONVERT(a, CHAR), CONVERT(b, CHAR) FROM t1 GROUP BY b;
CONVERT(a, CHAR) CONVERT(b, CHAR)
70002 1065
70001 1085
70000 1092
DROP INDEX b ON t1;
SELECT CONVERT(a, CHAR), CONVERT(b, CHAR) FROM t1 GROUP BY b;
CONVERT(a, CHAR) CONVERT(b, CHAR)
70002 1065
70001 1085
70000 1092
ALTER TABLE t1 ADD INDEX (b);
SELECT CONVERT(a, CHAR), CONVERT(b, CHAR) from t1 GROUP BY b;
CONVERT(a, CHAR) CONVERT(b, CHAR)
70002 1065
70001 1085
70000 1092
DROP TABLE t1;
#
# Bug#26474: Add Sinhala script (Sri Lanka) collation to MySQL
#
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (
predicted_order int NOT NULL,
utf8mb4_encoding VARCHAR(10) NOT NULL
) CHARACTER SET utf8mb4;
INSERT INTO t1 VALUES (19, x'E0B696'), (30, x'E0B69AE0B798'), (61, x'E0B6AF'), (93, x'E0B799'), (52, x'E0B6A6'), (73, x'E0B6BBE0B78AE2808D'), (3, x'E0B686'), (56, x'E0B6AA'), (55, x'E0B6A9'), (70, x'E0B6B9'), (94, x'E0B79A'), (80, x'E0B785'), (25, x'E0B69AE0B791'), (48, x'E0B6A2'), (13, x'E0B690'), (86, x'E0B793'), (91, x'E0B79F'), (81, x'E0B786'), (79, x'E0B784'), (14, x'E0B691'), (99, x'E0B78A'), (8, x'E0B68B'), (68, x'E0B6B7'), (22, x'E0B69A'), (16, x'E0B693'), (33, x'E0B69AE0B7B3'), (38, x'E0B69AE0B79D'), (21, x'E0B683'), (11, x'E0B68E'), (77, x'E0B782'), (40, x'E0B69AE0B78A'), (101, x'E0B78AE2808DE0B6BB'), (35, x'E0B69AE0B79A'), (1, x'E0B7B4'), (9, x'E0B68C'), (96, x'E0B79C'), (6, x'E0B689'), (95, x'E0B79B'), (88, x'E0B796'), (64, x'E0B6B3'), (26, x'E0B69AE0B792'), (82, x'E0B78F'), (28, x'E0B69AE0B794'), (39, x'E0B69AE0B79E'), (97, x'E0B79D'), (2, x'E0B685'), (75, x'E0B780'), (34, x'E0B69AE0B799'), (69, x'E0B6B8'), (83, x'E0B790'), (18, x'E0B695'), (90, x'E0B7B2'), (17, x'E0B694'), (72, x'E0B6BB'), (66, x'E0B6B5'), (59, x'E0B6AD'), (44, x'E0B69E'), (15, x'E0B692'), (23, x'E0B69AE0B78F'), (65, x'E0B6B4'), (42, x'E0B69C'), (63, x'E0B6B1'), (85, x'E0B792'), (47, x'E0B6A1'), (49, x'E0B6A3'), (92, x'E0B7B3'), (78, x'E0B783'), (36, x'E0B69AE0B79B'), (4, x'E0B687'), (24, x'E0B69AE0B790'), (87, x'E0B794'), (37, x'E0B69AE0B79C'), (32, x'E0B69AE0B79F'), (29, x'E0B69AE0B796'), (43, x'E0B69D'), (62, x'E0B6B0'), (100, x'E0B78AE2808DE0B6BA'), (60, x'E0B6AE'), (45, x'E0B69F'), (12, x'E0B68F'), (46, x'E0B6A0'), (50, x'E0B6A5'), (51, x'E0B6A4'), (5, x'E0B688'), (76, x'E0B781'), (89, x'E0B798'), (74, x'E0B6BD'), (10, x'E0B68D'), (57, x'E0B6AB'), (71, x'E0B6BA'), (58, x'E0B6AC'), (27, x'E0B69AE0B793'), (54, x'E0B6A8'), (84, x'E0B791'), (31, x'E0B69AE0B7B2'), (98, x'E0B79E'), (53, x'E0B6A7'), (41, x'E0B69B'), (67, x'E0B6B6'), (7, x'E0B68A'), (20, x'E0B682');
SELECT predicted_order, hex(utf8mb4_encoding) FROM t1 ORDER BY utf8mb4_encoding COLLATE utf8mb4_sinhala_ci;
predicted_order hex(utf8mb4_encoding)
1 E0B7B4
2 E0B685
3 E0B686
4 E0B687
5 E0B688
6 E0B689
7 E0B68A
8 E0B68B
9 E0B68C
10 E0B68D
11 E0B68E
12 E0B68F
13 E0B690
14 E0B691
15 E0B692
16 E0B693
17 E0B694
18 E0B695
19 E0B696
20 E0B682
21 E0B683
22 E0B69A
23 E0B69AE0B78F
24 E0B69AE0B790
25 E0B69AE0B791
26 E0B69AE0B792
27 E0B69AE0B793
28 E0B69AE0B794
29 E0B69AE0B796
30 E0B69AE0B798
31 E0B69AE0B7B2
32 E0B69AE0B79F
33 E0B69AE0B7B3
34 E0B69AE0B799
35 E0B69AE0B79A
36 E0B69AE0B79B
37 E0B69AE0B79C
38 E0B69AE0B79D
39 E0B69AE0B79E
40 E0B69AE0B78A
41 E0B69B
42 E0B69C
43 E0B69D
44 E0B69E
45 E0B69F
46 E0B6A0
47 E0B6A1
48 E0B6A2
49 E0B6A3
50 E0B6A5
51 E0B6A4
52 E0B6A6
53 E0B6A7
54 E0B6A8
55 E0B6A9
56 E0B6AA
57 E0B6AB
58 E0B6AC
59 E0B6AD
60 E0B6AE
61 E0B6AF
62 E0B6B0
63 E0B6B1
64 E0B6B3
65 E0B6B4
66 E0B6B5
67 E0B6B6
68 E0B6B7
69 E0B6B8
70 E0B6B9
71 E0B6BA
72 E0B6BB
73 E0B6BBE0B78AE2808D
74 E0B6BD
75 E0B780
76 E0B781
77 E0B782
78 E0B783
79 E0B784
80 E0B785
81 E0B786
82 E0B78F
83 E0B790
84 E0B791
85 E0B792
86 E0B793
87 E0B794
88 E0B796
89 E0B798
90 E0B7B2
91 E0B79F
92 E0B7B3
93 E0B799
94 E0B79A
95 E0B79B
96 E0B79C
97 E0B79D
98 E0B79E
99 E0B78A
100 E0B78AE2808DE0B6BA
101 E0B78AE2808DE0B6BB
DROP TABLE t1;
#
# Bug#32914 Character sets: illegal characters in utf8mb4 and utf32 columns
#
create table t1 (utf8mb4 char(1) character set utf8mb4);
Testing [F0][90..BF][80..BF][80..BF]
insert into t1 values (0xF0908080);
insert into t1 values (0xF0BFBFBF);
insert into t1 values (0xF08F8080);
Warnings:
Warning 1366 Incorrect string value: '\xF0\x8F\x80\x80' for column 'utf8mb4' at row 1
select hex(utf8mb4) from t1;
hex(utf8mb4)
F0908080
F0BFBFBF
delete from t1;
Testing [F2..F3][80..BF][80..BF][80..BF]
insert into t1 values (0xF2808080);
insert into t1 values (0xF2BFBFBF);
select hex(utf8mb4) from t1;
hex(utf8mb4)
F2808080
F2BFBFBF
delete from t1;
Testing [F4][80..8F][80..BF][80..BF]
insert into t1 values (0xF4808080);
insert into t1 values (0xF48F8080);
insert into t1 values (0xF4908080);
Warnings:
Warning 1366 Incorrect string value: '\xF4\x90\x80\x80' for column 'utf8mb4' at row 1
select hex(utf8mb4) from t1;
hex(utf8mb4)
F4808080
F48F8080
drop table t1;
#
# Check strnxfrm() with odd length
#
set max_sort_length=5;
select @@max_sort_length;
@@max_sort_length
5
create table t1 (a varchar(128) character set utf8mb4 collate utf8mb4_general_ci);
insert into t1 values ('a'),('b'),('c');
select * from t1 order by a;
a
a
b
c
alter table t1 modify a varchar(128) character set utf8mb4 collate utf8mb4_bin;
select * from t1 order by a;
a
a
b
c
drop table t1;
set max_sort_length=default;
#
# Bug#26180: Can't add columns to tables created with utf8mb4 text indexes
#
CREATE TABLE t1 (
clipid INT NOT NULL,
Tape TINYTEXT,
PRIMARY KEY (clipid),
KEY tape(Tape(255))
) CHARACTER SET=utf8mb4;
Warnings:
Warning 1071 Specified key was too long; max key length is 1000 bytes
ALTER TABLE t1 ADD mos TINYINT DEFAULT 0 AFTER clipid;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`clipid` int(11) NOT NULL,
`mos` tinyint(4) DEFAULT '0',
`Tape` tinytext,
PRIMARY KEY (`clipid`),
KEY `tape` (`Tape`(250))
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4
DROP TABLE t1;
#
# Testing 4-byte values.
#
DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (
u_decimal int NOT NULL,
utf8mb4_encoding VARCHAR(10) NOT NULL
) CHARACTER SET utf8mb4;
INSERT INTO t1 VALUES (119040, x'f09d8480'),
# G CLEF
(119070, x'f09d849e'),
# HALF NOTE
(119134, x'f09d859e'),
# MUSICAL SYMBOL CROIX
(119247, x'f09d878f'),
# MATHEMATICAL BOLD ITALIC CAPITAL DELTA
(120607, x'f09d9c9f'),
# SANS-SERIF BOLD ITALIC CAPITAL PI
(120735, x'f09d9e9f'),
# <Plane 16 Private Use, Last> (last 4 byte character)
(1114111, x'f48fbfbf'),
# VARIATION SELECTOR-256
(917999, x'f3a087af');
INSERT INTO t1 VALUES (119070, x'f09d849ef09d859ef09d859ef09d8480f09d859ff09d859ff09d859ff09d85a0f09d85a0f09d8480');
INSERT INTO t1 VALUES (65131, x'efb9abf09d849ef09d859ef09d859ef09d8480f09d859fefb9abefb9abf09d85a0efb9ab');
INSERT INTO t1 VALUES (119070, x'f09d849ef09d859ef09d859ef09d8480f09d859ff09d859ff09d859ff09d85a0f09d85a0f09d8480f09d85a0');
Warnings:
Warning 1265 Data truncated for column 'utf8mb4_encoding' at row 1
SELECT u_decimal, hex(utf8mb4_encoding) FROM t1 ORDER BY utf8mb4_encoding COLLATE utf8mb4_general_ci, BINARY utf8mb4_encoding;
u_decimal hex(utf8mb4_encoding)
65131 EFB9ABF09D849EF09D859EF09D859EF09D8480F09D859FEFB9ABEFB9ABF09D85A0EFB9AB
119040 F09D8480
119070 F09D849E
119134 F09D859E
119247 F09D878F
120607 F09D9C9F
120735 F09D9E9F
917999 F3A087AF
1114111 F48FBFBF
119070 F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480
119070 F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480
INSERT INTO t1 VALUES (1114111, x'f5808080');
Warnings:
Warning 1366 Incorrect string value: '\xF5\x80\x80\x80' for column 'utf8mb4_encoding' at row 1
SELECT character_maximum_length, character_octet_length FROM information_schema.columns WHERE
table_name= 't1' AND column_name= 'utf8mb4_encoding';
character_maximum_length character_octet_length
10 40
DROP TABLE IF EXISTS t2;
CREATE TABLE t2 (
u_decimal int NOT NULL,
utf8mb3_encoding VARCHAR(10) NOT NULL
) CHARACTER SET utf8mb3;
INSERT INTO t2 VALUES (42856, x'ea9da8');
INSERT INTO t2 VALUES (65131, x'efb9ab');
INSERT INTO t2 VALUES (1114111, x'f48fbfbf');
Warnings:
Warning 1366 Incorrect string value: '\xF4\x8F\xBF\xBF' for column 'utf8mb3_encoding' at row 1
SELECT character_maximum_length, character_octet_length FROM information_schema.columns WHERE
table_name= 't2' AND column_name= 'utf8mb3_encoding';
character_maximum_length character_octet_length
10 30
UPDATE t2 SET utf8mb3_encoding= x'f48fbfbd' where u_decimal= 42856;
Warnings:
Warning 1366 Incorrect string value: '\xF4\x8F\xBF\xBD' for column 'utf8mb3_encoding' at row 1
UPDATE t2 SET utf8mb3_encoding= _utf8mb4 x'ea9da8' where u_decimal= 42856;
SELECT HEX(CONCAT(utf8mb4_encoding, _utf8 x'ea9da8')) FROM t1;
HEX(CONCAT(utf8mb4_encoding, _utf8 x'ea9da8'))
F09D8480EA9DA8
F09D849EEA9DA8
F09D859EEA9DA8
F09D878FEA9DA8
F09D9C9FEA9DA8
F09D9E9FEA9DA8
F48FBFBFEA9DA8
F3A087AFEA9DA8
F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480EA9DA8
EFB9ABF09D849EF09D859EF09D859EF09D8480F09D859FEFB9ABEFB9ABF09D85A0EFB9ABEA9DA8
F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480EA9DA8
EA9DA8
SELECT HEX(CONCAT(utf8mb4_encoding, utf8mb3_encoding)) FROM t1,t2;
HEX(CONCAT(utf8mb4_encoding, utf8mb3_encoding))
F09D8480EA9DA8
F09D8480EFB9AB
F09D8480
F09D849EEA9DA8
F09D849EEFB9AB
F09D849E
F09D859EEA9DA8
F09D859EEFB9AB
F09D859E
F09D878FEA9DA8
F09D878FEFB9AB
F09D878F
F09D9C9FEA9DA8
F09D9C9FEFB9AB
F09D9C9F
F09D9E9FEA9DA8
F09D9E9FEFB9AB
F09D9E9F
F48FBFBFEA9DA8
F48FBFBFEFB9AB
F48FBFBF
F3A087AFEA9DA8
F3A087AFEFB9AB
F3A087AF
F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480EA9DA8
F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480EFB9AB
F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480
EFB9ABF09D849EF09D859EF09D859EF09D8480F09D859FEFB9ABEFB9ABF09D85A0EFB9ABEA9DA8
EFB9ABF09D849EF09D859EF09D859EF09D8480F09D859FEFB9ABEFB9ABF09D85A0EFB9ABEFB9AB
EFB9ABF09D849EF09D859EF09D859EF09D8480F09D859FEFB9ABEFB9ABF09D85A0EFB9AB
F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480EA9DA8
F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480EFB9AB
F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480
EA9DA8
EFB9AB
SELECT count(*) FROM t1, t2
WHERE t1.utf8mb4_encoding > t2.utf8mb3_encoding;
count(*)
33
ALTER TABLE t1 CONVERT TO CHARACTER SET utf8;
Warnings:
Warning 1366 Incorrect string value: '\xF0\x9D\x84\x80' for column 'utf8mb4_encoding' at row 1
Warning 1366 Incorrect string value: '\xF0\x9D\x84\x9E' for column 'utf8mb4_encoding' at row 2
Warning 1366 Incorrect string value: '\xF0\x9D\x85\x9E' for column 'utf8mb4_encoding' at row 3
Warning 1366 Incorrect string value: '\xF0\x9D\x87\x8F' for column 'utf8mb4_encoding' at row 4
Warning 1366 Incorrect string value: '\xF0\x9D\x9C\x9F' for column 'utf8mb4_encoding' at row 5
Warning 1366 Incorrect string value: '\xF0\x9D\x9E\x9F' for column 'utf8mb4_encoding' at row 6
Warning 1366 Incorrect string value: '\xF4\x8F\xBF\xBF' for column 'utf8mb4_encoding' at row 7
Warning 1366 Incorrect string value: '\xF3\xA0\x87\xAF' for column 'utf8mb4_encoding' at row 8
Warning 1366 Incorrect string value: '\xF0\x9D\x84\x9E\xF0\x9D...' for column 'utf8mb4_encoding' at row 9
Warning 1366 Incorrect string value: '\xF0\x9D\x84\x9E\xF0\x9D...' for column 'utf8mb4_encoding' at row 10
Warning 1366 Incorrect string value: '\xF0\x9D\x84\x9E\xF0\x9D...' for column 'utf8mb4_encoding' at row 11
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`u_decimal` int(11) NOT NULL,
`utf8mb4_encoding` varchar(10) NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8
SELECT u_decimal,hex(utf8mb4_encoding),utf8mb4_encoding FROM t1;
u_decimal hex(utf8mb4_encoding) utf8mb4_encoding
119040 3F ?
119070 3F ?
119134 3F ?
119247 3F ?
120607 3F ?
120735 3F ?
1114111 3F ?
917999 3F ?
119070 3F3F3F3F3F3F3F3F3F3F ??????????
65131 EFB9AB3F3F3F3F3FEFB9ABEFB9AB3FEFB9AB ﹫?????﹫﹫?﹫
119070 3F3F3F3F3F3F3F3F3F3F ??????????
1114111
ALTER TABLE t2 CONVERT TO CHARACTER SET utf8mb4;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`u_decimal` int(11) NOT NULL,
`utf8mb3_encoding` varchar(10) NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4
SELECT u_decimal,hex(utf8mb3_encoding) FROM t2;
u_decimal hex(utf8mb3_encoding)
42856 EA9DA8
65131 EFB9AB
1114111
ALTER TABLE t2 CONVERT TO CHARACTER SET utf8mb3;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`u_decimal` int(11) NOT NULL,
`utf8mb3_encoding` varchar(10) NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8
SELECT u_decimal,hex(utf8mb3_encoding) FROM t2;
u_decimal hex(utf8mb3_encoding)
42856 EA9DA8
65131 EFB9AB
1114111
ALTER TABLE t1 MODIFY utf8mb4_encoding VARCHAR(10) CHARACTER SET utf8mb3;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`u_decimal` int(11) NOT NULL,
`utf8mb4_encoding` varchar(10) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8
SELECT u_decimal,hex(utf8mb4_encoding) FROM t1;
u_decimal hex(utf8mb4_encoding)
119040 3F
119070 3F
119134 3F
119247 3F
120607 3F
120735 3F
1114111 3F
917999 3F
119070 3F3F3F3F3F3F3F3F3F3F
65131 EFB9AB3F3F3F3F3FEFB9ABEFB9AB3FEFB9AB
119070 3F3F3F3F3F3F3F3F3F3F
1114111
ALTER TABLE t1 MODIFY utf8mb4_encoding VARCHAR(10) CHARACTER SET utf8mb4;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`u_decimal` int(11) NOT NULL,
`utf8mb4_encoding` varchar(10) CHARACTER SET utf8mb4 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8
SELECT u_decimal,hex(utf8mb4_encoding) FROM t1;
u_decimal hex(utf8mb4_encoding)
119040 3F
119070 3F
119134 3F
119247 3F
120607 3F
120735 3F
1114111 3F
917999 3F
119070 3F3F3F3F3F3F3F3F3F3F
65131 EFB9AB3F3F3F3F3FEFB9ABEFB9AB3FEFB9AB
119070 3F3F3F3F3F3F3F3F3F3F
1114111
ALTER TABLE t2 MODIFY utf8mb3_encoding VARCHAR(10) CHARACTER SET utf8mb4;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`u_decimal` int(11) NOT NULL,
`utf8mb3_encoding` varchar(10) CHARACTER SET utf8mb4 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8
SELECT u_decimal,hex(utf8mb3_encoding) FROM t2;
u_decimal hex(utf8mb3_encoding)
42856 EA9DA8
65131 EFB9AB
1114111
DROP TABLE IF EXISTS t3;
CREATE TABLE t3 (
u_decimal int NOT NULL,
utf8mb3_encoding VARCHAR(10) NOT NULL
) CHARACTER SET utf8;
INSERT INTO t3 SELECT * FROM t1;
DROP TABLE IF EXISTS t4;
CREATE TABLE t4 (
u_decimal int NOT NULL,
utf8mb4_encoding VARCHAR(10) NOT NULL
) CHARACTER SET utf8mb4;
INSERT INTO t3 SELECT * FROM t2;
DROP TABLE t1;
DROP TABLE t2;
DROP TABLE t3;
DROP TABLE t4;
#
# Testing that mixing utf8 and utf8mb4 collations returns utf8mb4
#
SELECT CHARSET(CONCAT(_utf8mb4'a',_utf8'b'));
CHARSET(CONCAT(_utf8mb4'a',_utf8'b'))
utf8mb4
CREATE TABLE t1 (utf8mb4 VARCHAR(10) CHARACTER SET utf8mb4 NOT NULL);
INSERT INTO t1 VALUES (x'ea9da8'),(x'f48fbfbf');
SELECT CONCAT(utf8mb4, _utf8 x'ea9da8') FROM t1 LIMIT 0;
CONCAT(utf8mb4, _utf8 x'ea9da8')
CREATE TABLE t2 (utf8mb3 VARCHAR(10) CHARACTER SET utf8mb3 NOT NULL);
INSERT INTO t2 VALUES (x'ea9da8');
SELECT HEX(CONCAT(utf8mb4, utf8mb3)) FROM t1,t2 ORDER BY 1;
HEX(CONCAT(utf8mb4, utf8mb3))
EA9DA8EA9DA8
F48FBFBFEA9DA8
SELECT CHARSET(CONCAT(utf8mb4, utf8mb3)) FROM t1, t2 LIMIT 1;
CHARSET(CONCAT(utf8mb4, utf8mb3))
utf8mb4
CREATE TEMPORARY TABLE t3 AS SELECT *, concat(utf8mb4,utf8mb3) FROM t1, t2;
SHOW CREATE TABLE t3;
Table Create Table
t3 CREATE TEMPORARY TABLE `t3` (
`utf8mb4` varchar(10) CHARACTER SET utf8mb4 NOT NULL,
`utf8mb3` varchar(10) CHARACTER SET utf8 NOT NULL,
`concat(utf8mb4,utf8mb3)` varchar(20) CHARACTER SET utf8mb4 NOT NULL DEFAULT ''
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TEMPORARY TABLE t3;
SELECT * FROM t1, t2 WHERE t1.utf8mb4 > t2.utf8mb3;
utf8mb4 utf8mb3
Ꝩ
SELECT * FROM t1, t2 WHERE t1.utf8mb4 = t2.utf8mb3;
utf8mb4 utf8mb3
Ꝩ Ꝩ
SELECT * FROM t1, t2 WHERE t1.utf8mb4 < t2.utf8mb3;
utf8mb4 utf8mb3
DROP TABLE t1;
DROP TABLE t2;
#
# Check that mixing utf8mb4 with an invalid utf8 constant returns error
#
CREATE TABLE t1 (utf8mb4 VARCHAR(10) CHARACTER SET utf8mb4);
INSERT INTO t1 VALUES (x'f48fbfbf');
SELECT CONCAT(utf8mb4, _utf8 '�') FROM t1;
ERROR HY000: Illegal mix of collations (utf8mb4_general_ci,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation 'concat'
SELECT CONCAT('a', _utf8 '�') FROM t1;
ERROR HY000: Illegal mix of collations (utf8mb4_general_ci,COERCIBLE) and (utf8_general_ci,COERCIBLE) for operation 'concat'
DROP TABLE t1;
#
# Bug#51675 Server crashes on inserting 4 byte char.
# after ALTER TABLE to 'utf8mb4'
#
SET NAMES utf8;
CREATE TABLE t1 (
subject varchar(255) CHARACTER SET utf8 COLLATE utf8_unicode_ci,
p VARCHAR(15) CHARACTER SET utf8
) DEFAULT CHARSET=latin1;
ALTER TABLE t1 ADD INDEX (subject);
ALTER TABLE t1
DEFAULT CHARACTER SET utf8,
MODIFY subject varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci,
MODIFY p varchar(255) CHARACTER SET utf8;
Warnings:
Warning 1071 Specified key was too long; max key length is 1000 bytes
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`subject` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci DEFAULT NULL,
`p` varchar(255) DEFAULT NULL,
KEY `subject` (`subject`(250))
) ENGINE=MyISAM DEFAULT CHARSET=utf8
INSERT INTO t1(subject) VALUES ('abcd');
INSERT INTO t1(subject) VALUES(x'f0909080');
DROP TABLE t1;
CREATE TABLE t1 (a TEXT CHARACTER SET utf8mb4, FULLTEXT INDEX(a));
INSERT INTO t1 VALUES (0xF0A08080 /* U+20000 */ );
DROP TABLE t1;
#
# Bug #51676 Server crashes on SELECT, ORDER BY on 'utf8mb4' column
#
SET NAMES utf8mb4;
CREATE TABLE t1 (
subject varchar(255) character set utf8mb4 collate utf8mb4_unicode_ci,
p varchar(15) character set utf8mb4
) DEFAULT CHARSET=latin1;
INSERT INTO t1(subject) VALUES(0xF0909080);
INSERT INTO t1(subject) VALUES(0x616263F0909080646566);
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`subject` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci DEFAULT NULL,
`p` varchar(15) CHARACTER SET utf8mb4 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
SELECT * FROM t1 ORDER BY 1;
subject p
abc𐐀def NULL
𐐀 NULL
SELECT hex(subject), length(subject), char_length(subject), octet_length(subject) FROM t1 ORDER BY 1;
hex(subject) length(subject) char_length(subject) octet_length(subject)
616263F0909080646566 10 7 10
F0909080 4 1 4
SELECT subject FROM t1 ORDER BY 1;
subject
abc𐐀def
𐐀
DROP TABLE t1;
#
# Bug#52520 Difference in tinytext utf column metadata
#
CREATE TABLE t1 (
s1 TINYTEXT CHARACTER SET utf8mb4,
s2 TEXT CHARACTER SET utf8mb4,
s3 MEDIUMTEXT CHARACTER SET utf8mb4,
s4 LONGTEXT CHARACTER SET utf8mb4
);
SET NAMES utf8mb4, @@character_set_results=NULL;
SELECT *, HEX(s1) FROM t1;
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
def test t1 t1 s1 s1 252 255 0 Y 16 0 45
def test t1 t1 s2 s2 252 65535 0 Y 16 0 45
def test t1 t1 s3 s3 252 16777215 0 Y 16 0 45
def test t1 t1 s4 s4 252 4294967295 0 Y 16 0 45
def HEX(s1) 253 8160 0 Y 0 0 45
s1 s2 s3 s4 HEX(s1)
SET NAMES latin1;
SELECT *, HEX(s1) FROM t1;
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
def test t1 t1 s1 s1 252 255 0 Y 16 0 8
def test t1 t1 s2 s2 252 65535 0 Y 16 0 8
def test t1 t1 s3 s3 252 16777215 0 Y 16 0 8
def test t1 t1 s4 s4 252 4294967295 0 Y 16 0 8
def HEX(s1) 253 2040 0 Y 0 0 8
s1 s2 s3 s4 HEX(s1)
SET NAMES utf8mb4;
SELECT *, HEX(s1) FROM t1;
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
def test t1 t1 s1 s1 252 1020 0 Y 16 0 45
def test t1 t1 s2 s2 252 262140 0 Y 16 0 45
def test t1 t1 s3 s3 252 67108860 0 Y 16 0 45
def test t1 t1 s4 s4 252 4294967295 0 Y 16 0 45
def HEX(s1) 253 8160 0 Y 0 0 45
s1 s2 s3 s4 HEX(s1)
CREATE TABLE t2 AS SELECT CONCAT(s1) FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`CONCAT(s1)` varchar(255) CHARACTER SET utf8mb4 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1, t2;
#
# Bug#13581962 HIGH MEMORY USAGE ATTEMPT, THEN CRASH WITH LONGTEXT, UNION, USER VARIABLE
#
CREATE TABLE t1(f1 LONGTEXT CHARACTER SET utf8mb4);
INSERT INTO t1 VALUES ('a');
SELECT @a:= CAST(f1 AS SIGNED) FROM t1
UNION ALL
SELECT CAST(f1 AS SIGNED) FROM t1;
@a:= CAST(f1 AS SIGNED)
0
0
Warnings:
Warning 1292 Truncated incorrect INTEGER value: 'a'
Warning 1292 Truncated incorrect INTEGER value: 'a'
DROP TABLE t1;
#
# End of 5.5 tests
#
#
# Start of 5.6 tests
#
#
# Bugs#12635232: VALGRIND WARNINGS: IS_IPV6, IS_IPV4, INET6_ATON,
# INET6_NTOA + MULTIBYTE CHARSET.
#
SET NAMES utf8mb4;
SELECT is_ipv4(inet_ntoa('1'));
is_ipv4(inet_ntoa('1'))
1
SELECT is_ipv6(inet_ntoa('1'));
is_ipv6(inet_ntoa('1'))
0
SELECT inet6_aton(inet_ntoa('1'));
inet6_aton(inet_ntoa('1'))
SELECT inet6_ntoa(inet_ntoa('1'));
inet6_ntoa(inet_ntoa('1'))
NULL
#
# Bug#14040277 UNINITIALIZED VALUE REFERENCED IN STR_TO_IPV6
#
SELECT inet6_aton(soundex('a'));
inet6_aton(soundex('a'))
NULL
#
# End of 5.6 tests
#