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'Gnter Andr' using utf8mb4) like CONVERT(_latin1'GNTER%' USING utf8mb4); convert(_latin1'G\xFCnter Andr\xE9' using utf8mb4) like CONVERT(_latin1'G\xDCNTER%' USING utf8mb4) 1 select CONVERT(_koi8r'' USING utf8mb4) LIKE CONVERT(_koi8r'' USING utf8mb4); CONVERT(_koi8r'\xD7\xC1\xD3\xD1' USING utf8mb4) LIKE CONVERT(_koi8r'\xF7\xE1\xF3\xF1' USING utf8mb4) 1 select CONVERT(_koi8r'' USING utf8mb4) LIKE CONVERT(_koi8r'' USING utf8mb4); CONVERT(_koi8r'\xF7\xE1\xF3\xF1' USING utf8mb4) LIKE CONVERT(_koi8r'\xD7\xC1\xD3\xD1' 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) ENGINE InnoDB; 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 61 0 0 6100 -1 -1 6109 -1 -1 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 ENGINE InnoDB 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 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci 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) engine InnoDB; 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) engine InnoDB; 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 E6C5D7 Фев E6C5D7D2C1CCD1 Февраля F0CEC4 Пнд F0CFCEC5C4C5CCD8CEC9CB Понедельник drop table t1; set LC_TIME_NAMES='en_US'; set names koi8r; create table t1 (s1 char(1) character set utf8mb4) engine InnoDB; insert ignore 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) engine InnoDB; insert ignore into t1 select repeat('a',300); Warnings: Warning 1265 Data truncated for column 's1' at row 1 insert ignore into t1 select repeat('',300); Warnings: Warning 1265 Data truncated for column 's1' at row 1 insert ignore into t1 select repeat('a',300); Warnings: Warning 1265 Data truncated for column 's1' at row 1 insert ignore into t1 select repeat('a',300); Warnings: Warning 1265 Data truncated for column 's1' at row 1 insert ignore into t1 select repeat('',300); Warnings: Warning 1265 Data truncated for column 's1' at row 1 select hex(s1) from t1; hex(s1) 616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161616161 61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61D18F61 D18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18F D18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18FD18F select length(s1),char_length(s1) from t1; length(s1) char_length(s1) 254 127 254 127 255 170 255 170 255 255 drop table t1; create table t1 (s1 text character set utf8mb4) engine InnoDB; insert ignore into t1 select repeat('a',66000); Warnings: Warning 1265 Data truncated for column 's1' at row 1 insert ignore into t1 select repeat('',66000); Warnings: Warning 1265 Data truncated for column 's1' at row 1 insert ignore into t1 select repeat('a',66000); Warnings: Warning 1265 Data truncated for column 's1' at row 1 insert ignore into t1 select repeat('a',66000); Warnings: Warning 1265 Data truncated for column 's1' at row 1 insert ignore 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) 65534 32767 65534 32767 65535 43690 65535 43690 65535 65535 drop table t1; create table t1 (s1 char(10) character set utf8mb4) engine InnoDB; insert ignore into t1 values (0x41FF); Warnings: Warning 1366 Incorrect string value: '\xFF' for column `test`.`t1`.`s1` at row 1 select hex(s1) from t1; hex(s1) 413F drop table t1; create table t1 (s1 varchar(10) character set utf8mb4) engine InnoDB; insert ignore into t1 values (0x41FF); Warnings: Warning 1366 Incorrect string value: '\xFF' for column `test`.`t1`.`s1` at row 1 select hex(s1) from t1; hex(s1) 413F drop table t1; create table t1 (s1 text character set utf8mb4) engine InnoDB; insert ignore into t1 values (0x41FF); Warnings: Warning 1366 Incorrect string value: '\xFF' for column `test`.`t1`.`s1` at row 1 select hex(s1) from t1; hex(s1) 413F drop table t1; create table t1 (a text character set utf8mb4, primary key(a(371))) engine InnoDB; show warnings; Level Code Message drop table if exists t1; CREATE TABLE t1 ( a varchar(10) ) CHARACTER SET utf8mb4 ENGINE InnoDB; 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) engine InnoDB; 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 names utf8mb4; 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 COLLATE utf8mb4_general_ci DEFAULT NULL, `s2` varchar(64) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci 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 0 0 0 1 1 1 1 1 1 1 NULL NULL NULL NULL drop table t1; SELECT @@character_set_client, @@collation_connection; @@character_set_client @@collation_connection utf8mb4 utf8mb4_general_ci select 'вася' rlike '\\bвася\\b'; 'вася' rlike '\\bвася\\b' 1 select 'вася ' rlike '\\bвася\\b'; 'вася ' rlike '\\bвася\\b' 1 select ' вася' rlike '\\bвася\\b'; ' вася' rlike '\\bвася\\b' 1 select ' вася ' rlike '\\bвася\\b'; ' вася ' rlike '\\bвася\\b' 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 ' вася ' rlike '[[:<:]]вася[[:>:]]'; ' вася ' rlike '[[:<:]]вася[[:>:]]' 1 select 'васяz' rlike '\\bвася\\b'; 'васяz' rlike '\\bвася\\b' 0 select 'zвася' rlike '\\bвася\\b'; 'zвася' rlike '\\bвася\\b' 0 select 'zвасяz' rlike '\\bвася\\b'; 'zвасяz' rlike '\\bвася\\b' 0 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) ENGINE InnoDB; ALTER TABLE t1 ADD COLUMN b CHAR(20); DROP TABLE t1; set names utf8mb4; create table t1 (a enum('aaaa','проба') character set utf8mb4) engine InnoDB; show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `a` enum('aaaa','проба') CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci insert into t1 values ('проба'); select * from t1; a проба create table t2 engine InnoDB 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 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci 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))) 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 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))) 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(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=InnoDB; show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `c` char(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL, UNIQUE KEY `a` (`c`(1)) USING HASH ) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci 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=InnoDB; show create table t1; Table Create Table t1 CREATE TABLE `t1` ( `c` char(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL, UNIQUE KEY `a` (`c`(1)) USING BTREE ) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci 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))) 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 collate utf8mb4_bin, 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 collate utf8mb4_bin, unique key a using hash (c(1)) ) engine=InnoDB; 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=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci 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=InnoDB; 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=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci 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=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 (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=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 hash (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 (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 ENGINE InnoDB; 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) 3 432 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=InnoDB 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=InnoDB CHARSET=utf8mb4; INSERT INTO t1 set list_id = 1, term = "testtest"; INSERT INTO t1 set list_id = 1, term = "testetest"; INSERT INTO t1 set list_id = 1, term = "testtest"; SELECT id, term FROM t1 where (list_id = 1) AND (term = "testtest"); id term 1 testtest 2 testetest 3 testtest SELECT id, term FROM t1 where (list_id = 1) AND (term = "testetest"); id term 1 testtest 2 testetest 3 testtest SELECT id, term FROM t1 where (list_id = 1) AND (term = "testtest"); id term 1 testtest 2 testetest 3 testtest 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' ) engine InnoDB; create table t2 engine InnoDB 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 COLLATE utf8mb4_general_ci DEFAULT NULL, `b` varchar(15) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci 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) engine InnoDB; 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; # # MDEV-5453 Assertion `src' fails in my_strnxfrm_unicode on GROUP BY MID(..) WITH ROLLUP # SELECT @@collation_connection; @@collation_connection utf8mb4_general_ci CREATE TABLE t1 (i INT) ENGINE=MyISAM; INSERT INTO t1 VALUES (1),(2); SELECT * FROM t1 GROUP BY MID(CURRENT_USER,0) WITH ROLLUP; i 1 1 SELECT * FROM t1 GROUP BY MID('test',0) WITH ROLLUP; i 1 1 DROP TABLE t1; # # MDEV-6170 Incorrect ordering with utf8_bin and utf8mb4_bin collations # SELECT @@collation_connection; @@collation_connection utf8mb4_general_ci CREATE TABLE t1 ENGINE=MEMORY AS SELECT REPEAT('a',5) AS a LIMIT 0; INSERT INTO t1 (a) VALUES ("a"); INSERT INTO t1 (a) VALUES ("b"); INSERT INTO t1 (a) VALUES ("c"); INSERT INTO t1 (a) VALUES ("d"); INSERT INTO t1 (a) VALUES ("e"); INSERT INTO t1 (a) VALUES ("f"); INSERT INTO t1 (a) VALUES ("g"); INSERT INTO t1 (a) VALUES ("h"); INSERT INTO t1 (a) VALUES ("i"); INSERT INTO t1 (a) VALUES ("j"); INSERT INTO t1 (a) VALUES ("k"); INSERT INTO t1 (a) VALUES ("l"); INSERT INTO t1 (a) VALUES ("m"); SELECT * FROM t1 ORDER BY LOWER(a); a a b c d e f g h i j k l m SELECT * FROM t1 ORDER BY LOWER(a) DESC; a m l k j i h g f e d c b a 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; SELECT @@collation_connection; @@collation_connection utf8mb4_general_ci SELECT '\%b' LIKE '%\%'; '\%b' LIKE '%\%' 0 "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 Œ C592 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 Œ C592 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; CREATE TABLE t1 AS SELECT REPEAT('a',1) AS a, 1 AS b LIMIT 0; SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `a` varchar(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL, `b` int(1) NOT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci INSERT INTO t1 VALUES ('s',0),(_latin1 0xDF,1); SELECT * FROM t1 ORDER BY a, b; a b s 0 ß 1 SELECT * FROM t1 ORDER BY a DESC, b; a b s 0 ß 1 SELECT * FROM t1 ORDER BY CONCAT(a), b; a b s 0 ß 1 SELECT * FROM t1 ORDER BY CONCAT(a) DESC, b; a b s 0 ß 1 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; # # MDEV-5453 Assertion `src' fails in my_strnxfrm_unicode on GROUP BY MID(..) WITH ROLLUP # SELECT @@collation_connection; @@collation_connection utf8mb4_bin CREATE TABLE t1 (i INT) ENGINE=MyISAM; INSERT INTO t1 VALUES (1),(2); SELECT * FROM t1 GROUP BY MID(CURRENT_USER,0) WITH ROLLUP; i 1 1 SELECT * FROM t1 GROUP BY MID('test',0) WITH ROLLUP; i 1 1 DROP TABLE t1; # # MDEV-6170 Incorrect ordering with utf8_bin and utf8mb4_bin collations # SELECT @@collation_connection; @@collation_connection utf8mb4_bin CREATE TABLE t1 ENGINE=MEMORY AS SELECT REPEAT('a',5) AS a LIMIT 0; INSERT INTO t1 (a) VALUES ("a"); INSERT INTO t1 (a) VALUES ("b"); INSERT INTO t1 (a) VALUES ("c"); INSERT INTO t1 (a) VALUES ("d"); INSERT INTO t1 (a) VALUES ("e"); INSERT INTO t1 (a) VALUES ("f"); INSERT INTO t1 (a) VALUES ("g"); INSERT INTO t1 (a) VALUES ("h"); INSERT INTO t1 (a) VALUES ("i"); INSERT INTO t1 (a) VALUES ("j"); INSERT INTO t1 (a) VALUES ("k"); INSERT INTO t1 (a) VALUES ("l"); INSERT INTO t1 (a) VALUES ("m"); SELECT * FROM t1 ORDER BY LOWER(a); a a b c d e f g h i j k l m SELECT * FROM t1 ORDER BY LOWER(a) DESC; a m l k j i h g f e d c b 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; SELECT @@collation_connection; @@collation_connection utf8mb4_bin SELECT '\%b' LIKE '%\%'; '\%b' LIKE '%\%' 0 CREATE TABLE t1 ( user varchar(255) NOT NULL default '' ) ENGINE=InnoDB 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 two DROP TABLE t1; create table t1 (f1 varchar(1) not null) default charset utf8mb4 engine InnoDB; 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'\xC9' using utf8mb4) < convert(_koi8r'\xCA' using utf8mb4) 1 set names latin1; create table t1 (a varchar(10)) character set utf8mb4 engine InnoDB; 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) engine InnoDB; 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) engine InnoDB; 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 engine InnoDB; 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 engine InnoDB; 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 engine InnoDB; ERROR 42000: Invalid default value for 'x' create table t1 (x enum('A', 'B') default 0) character set utf8mb4 engine InnoDB; 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=InnoDB 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) engine InnoDB; insert into t1 values ('123456'),('андрей'); SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR 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 engine InnoDB; 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=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE utf8mb4_general_ci; insert into t1 values (_utf8mb4 0xe880bd); insert into t1 values (_utf8mb4 0x5b); select hex(a) from t1; hex(a) 5B E880BD drop table t1; set names 'latin1'; create table t1 (a varchar(255)) default charset=utf8mb4 engine InnoDB; select * from t1 where find_in_set('-1', a); a drop table t1; create table t1 (a int) engine InnoDB; 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) ENGINE InnoDB; INSERT INTO t1 VALUES(REPEAT('a', 100)); CREATE TEMPORARY TABLE t2 ENGINE InnoDB 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 ENGINE InnoDB; 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=InnoDB DEFAULT CHARSET=utf8mb4; 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) engine InnoDB; 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) engine InnoDB; 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) engine InnoDB; 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=InnoDB 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 10 eeeee 40 11 bbbbbb 60 2 cccc 70 3 cccc 30 4 cccc 30 5 cccc 20 6 bbbbbb 40 7 dddd 30 8 aaaa 10 9 aaaa 50 SELECT id, a, b FROM t1 WHERE a BETWEEN 'aaaa' AND 'bbbbbb'; id a b 11 bbbbbb 60 6 bbbbbb 40 8 aaaa 10 9 aaaa 50 SELECT id, a FROM t1 WHERE a='bbbbbb'; id a 11 bbbbbb 6 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=InnoDB 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=InnoDB 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=InnoDB 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=InnoDB 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=InnoDB 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 engine InnoDB; 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 COUNT(*) FROM (SELECT DISTINCT a FROM t1) AS t2; COUNT(*) 1 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 COUNT(*) FROM (SELECT a FROM t1 GROUP BY a) AS t2; COUNT(*) 1 drop table t1; create table t1(a char(10)) default charset utf8mb4 engine InnoDB; 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 (flat, BNL join) 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 utf8mb3 SET @@character_set_server=@save_character_set_server; CREATE DATABASE crashtest DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_bin; USE crashtest; CREATE TABLE crashtest (crash char(10)) DEFAULT CHARSET=utf8mb4 ENGINE InnoDB; 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 ENGINE InnoDB; INSERT INTO t1 VALUES ('xxx'), ('aa'), ('yyy'), ('aa'); SELECT id FROM t1; id aa aa xxx yyy SELECT DISTINCT id FROM t1; id aa xxx 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 ENGINE InnoDB; insert into t1 (a) values ('abcdefghijklmnopqrstuvwxyz'); select * from t1; a abcdefghijklmnopqrstuvwxyz SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR 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 SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR 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 SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR 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 SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR 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 engine InnoDB; insert into t1 values (repeat('a',4000)); SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR 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) NULL 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: '\xFF\x8F' 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) ?? Warnings: Warning 1300 Invalid utf8mb4 character string: '\xFF\x8F' 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 engine InnoDB; create table t2 (a char(1)) default character set utf8mb4 engine InnoDB; 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 i あ い drop table t1,t2; set names utf8mb4; create table t1 (a char(10), b varchar(10)) engine InnoDB; 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) engine InnoDB; 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) engine InnoDB; 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 (utf8mb3_general_ci,COERCIBLE) for operation 'concat' drop table t1; set names utf8mb4; create table t1 (a varchar(10) character set latin1, b int) engine InnoDB; 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) engine InnoDB; 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) engine InnoDB; 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 ENGINE InnoDB; CREATE TABLE t2 (b CHAR(1) CHARACTER SET binary, i INT) ENGINE InnoDB; 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)) 3F Warnings: Warning 1300 Invalid utf8mb4 character string: '\xFF' 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)) NULL Warnings: Warning 1300 Invalid utf8mb4 character string: 'FF' select hex(convert(0xFF using utf8mb4)); hex(convert(0xFF using utf8mb4)) 3F Warnings: Warning 1300 Invalid utf8mb4 character string: '\xFF' 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) ENGINE InnoDB; 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) 70000 1092 70001 1085 70002 1065 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) 70000 1092 70001 1085 70002 1065 DROP INDEX b ON t1; SELECT CONVERT(a, CHAR), CONVERT(b, CHAR) FROM t1 GROUP BY b; CONVERT(a, CHAR) CONVERT(b, CHAR) 70000 1092 70001 1085 70002 1065 ALTER TABLE t1 ADD INDEX (b); SELECT CONVERT(a, CHAR), CONVERT(b, CHAR) from t1 GROUP BY b; CONVERT(a, CHAR) CONVERT(b, CHAR) 70000 1092 70001 1085 70002 1065 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 ENGINE InnoDB; 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) engine InnoDB; Testing [F0][90..BF][80..BF][80..BF] insert into t1 values (0xF0908080); insert into t1 values (0xF0BFBFBF); insert ignore into t1 values (0xF08F8080); Warnings: Warning 1366 Incorrect string value: '\xF0\x8F\x80\x80' for column `test`.`t1`.`utf8mb4` at row 1 select hex(utf8mb4) from t1; hex(utf8mb4) 3F 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 ignore into t1 values (0xF4908080); Warnings: Warning 1366 Incorrect string value: '\xF4\x90\x80\x80' for column `test`.`t1`.`utf8mb4` at row 1 select hex(utf8mb4) from t1; hex(utf8mb4) 3F F4808080 F48F8080 drop table t1; # # Check strnxfrm() with odd length # set max_sort_length=65; select @@max_sort_length; @@max_sort_length 65 create table t1 (a varchar(128) character set utf8mb4 collate utf8mb4_general_ci) engine InnoDB; 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 ENGINE InnoDB; 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 DEFAULT NULL, PRIMARY KEY (`clipid`), KEY `tape` (`Tape`(255)) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci 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 ENGINE InnoDB; 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'), # (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 IGNORE 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) 1114111 F48FBFBF 119040 F09D8480 119070 F09D849E 119070 F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480 119070 F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480 119134 F09D859E 119247 F09D878F 120607 F09D9C9F 120735 F09D9E9F 65131 EFB9ABF09D849EF09D859EF09D859EF09D8480F09D859FEFB9ABEFB9ABF09D85A0EFB9AB 917999 F3A087AF INSERT IGNORE INTO t1 VALUES (1114111, x'f5808080'); Warnings: Warning 1366 Incorrect string value: '\xF5\x80\x80\x80' for column `test`.`t1`.`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 ENGINE InnoDB; INSERT INTO t2 VALUES (42856, x'ea9da8'); INSERT INTO t2 VALUES (65131, x'efb9ab'); INSERT IGNORE INTO t2 VALUES (1114111, x'f48fbfbf'); Warnings: Warning 1366 Incorrect string value: '\xF4\x8F\xBF\xBF' for column `test`.`t2`.`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 IGNORE t2 SET utf8mb3_encoding= x'f48fbfbd' where u_decimal= 42856; Warnings: Warning 1366 Incorrect string value: '\xF4\x8F\xBF\xBD' for column `test`.`t2`.`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')) 3F3F3F3FEA9DA8 EFB9ABF09D849EF09D859EF09D859EF09D8480F09D859FEFB9ABEFB9ABF09D85A0EFB9ABEA9DA8 F09D8480EA9DA8 F09D849EEA9DA8 F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480EA9DA8 F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480EA9DA8 F09D859EEA9DA8 F09D878FEA9DA8 F09D9C9FEA9DA8 F09D9E9FEA9DA8 F3A087AFEA9DA8 F48FBFBFEA9DA8 SELECT HEX(CONCAT(utf8mb4_encoding, utf8mb3_encoding)) FROM t1,t2; HEX(CONCAT(utf8mb4_encoding, utf8mb3_encoding)) 3F3F3F3F3F3F3F3F 3F3F3F3FEA9DA8 3F3F3F3FEFB9AB EFB9ABF09D849EF09D859EF09D859EF09D8480F09D859FEFB9ABEFB9ABF09D85A0EFB9AB3F3F3F3F EFB9ABF09D849EF09D859EF09D859EF09D8480F09D859FEFB9ABEFB9ABF09D85A0EFB9ABEA9DA8 EFB9ABF09D849EF09D859EF09D859EF09D8480F09D859FEFB9ABEFB9ABF09D85A0EFB9ABEFB9AB F09D84803F3F3F3F F09D8480EA9DA8 F09D8480EFB9AB F09D849E3F3F3F3F F09D849EEA9DA8 F09D849EEFB9AB F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D84803F3F3F3F F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D84803F3F3F3F F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480EA9DA8 F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480EA9DA8 F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480EFB9AB F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480EFB9AB F09D859E3F3F3F3F F09D859EEA9DA8 F09D859EEFB9AB F09D878F3F3F3F3F F09D878FEA9DA8 F09D878FEFB9AB F09D9C9F3F3F3F3F F09D9C9FEA9DA8 F09D9C9FEFB9AB F09D9E9F3F3F3F3F F09D9E9FEA9DA8 F09D9E9FEFB9AB F3A087AF3F3F3F3F F3A087AFEA9DA8 F3A087AFEFB9AB F48FBFBF3F3F3F3F F48FBFBFEA9DA8 F48FBFBFEFB9AB SELECT count(*) FROM t1, t2 WHERE t1.utf8mb4_encoding > t2.utf8mb3_encoding; count(*) 33 SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR ALTER TABLE t1 CONVERT TO CHARACTER SET utf8; SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `u_decimal` int(11) NOT NULL, `utf8mb4_encoding` varchar(10) NOT NULL ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 COLLATE=utf8mb3_general_ci SELECT u_decimal,hex(utf8mb4_encoding),utf8mb4_encoding FROM t1; u_decimal hex(utf8mb4_encoding) utf8mb4_encoding 1114111 3F ? 1114111 3F3F3F3F ???? 119040 3F ? 119070 3F ? 119070 3F3F3F3F3F3F3F3F3F3F ?????????? 119070 3F3F3F3F3F3F3F3F3F3F ?????????? 119134 3F ? 119247 3F ? 120607 3F ? 120735 3F ? 65131 EFB9AB3F3F3F3F3FEFB9ABEFB9AB3FEFB9AB ﹫?????﹫﹫?﹫ 917999 3F ? 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=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci SELECT u_decimal,hex(utf8mb3_encoding) FROM t2; u_decimal hex(utf8mb3_encoding) 1114111 3F3F3F3F 42856 EA9DA8 65131 EFB9AB 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=InnoDB DEFAULT CHARSET=utf8mb3 COLLATE=utf8mb3_general_ci SELECT u_decimal,hex(utf8mb3_encoding) FROM t2; u_decimal hex(utf8mb3_encoding) 1114111 3F3F3F3F 42856 EA9DA8 65131 EFB9AB 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=InnoDB DEFAULT CHARSET=utf8mb3 COLLATE=utf8mb3_general_ci SELECT u_decimal,hex(utf8mb4_encoding) FROM t1; u_decimal hex(utf8mb4_encoding) 1114111 3F 1114111 3F3F3F3F 119040 3F 119070 3F 119070 3F3F3F3F3F3F3F3F3F3F 119070 3F3F3F3F3F3F3F3F3F3F 119134 3F 119247 3F 120607 3F 120735 3F 65131 EFB9AB3F3F3F3F3FEFB9ABEFB9AB3FEFB9AB 917999 3F 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 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 COLLATE=utf8mb3_general_ci SELECT u_decimal,hex(utf8mb4_encoding) FROM t1; u_decimal hex(utf8mb4_encoding) 1114111 3F 1114111 3F3F3F3F 119040 3F 119070 3F 119070 3F3F3F3F3F3F3F3F3F3F 119070 3F3F3F3F3F3F3F3F3F3F 119134 3F 119247 3F 120607 3F 120735 3F 65131 EFB9AB3F3F3F3F3FEFB9ABEFB9AB3FEFB9AB 917999 3F 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 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 COLLATE=utf8mb3_general_ci SELECT u_decimal,hex(utf8mb3_encoding) FROM t2; u_decimal hex(utf8mb3_encoding) 1114111 3F3F3F3F 42856 EA9DA8 65131 EFB9AB DROP TABLE IF EXISTS t3; CREATE TABLE t3 ( u_decimal int NOT NULL, utf8mb3_encoding VARCHAR(10) NOT NULL ) CHARACTER SET utf8 ENGINE InnoDB; 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 ENGINE InnoDB; 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) ENGINE InnoDB; 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) ENGINE InnoDB; 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 ENGINE InnoDB 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 COLLATE utf8mb4_general_ci NOT NULL, `utf8mb3` varchar(10) CHARACTER SET utf8mb3 COLLATE utf8mb3_general_ci NOT NULL, `concat(utf8mb4,utf8mb3)` varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci 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) ENGINE InnoDB; INSERT INTO t1 VALUES (x'f48fbfbf'); SELECT CONCAT(utf8mb4, _utf8 '') FROM t1; ERROR HY000: Illegal mix of collations (utf8mb4_general_ci,IMPLICIT) and (utf8mb3_general_ci,COERCIBLE) for operation 'concat' SELECT CONCAT('a', _utf8 '') FROM t1; ERROR HY000: Illegal mix of collations (utf8mb4_general_ci,COERCIBLE) and (utf8mb3_general_ci,COERCIBLE) for operation 'concat' DROP TABLE t1; # # End of 5.5 tests # # # ctype_utf8mb4.inc: Start of 10.1 tests # # # MDEV-8417 utf8mb4: compare broken bytes as "greater than any non-broken character" # CREATE TABLE t1 ( id INT NOT NULL AUTO_INCREMENT PRIMARY KEY, a VARCHAR(10) CHARACTER SET utf8mb4, KEY(a,id) ); INSERT INTO t1 (a) VALUES (0x61); INSERT INTO t1 (a) VALUES (0xC280),(0xDFBF); INSERT INTO t1 (a) VALUES (0xE0A080),(0xEFBFBF); INSERT INTO t1 (a) VALUES (0xF0908080),(0xF48FBFBF); SELECT id,HEX(a) FROM t1 ORDER BY a,id; id HEX(a) 1 61 2 C280 3 DFBF 4 E0A080 6 F0908080 7 F48FBFBF 5 EFBFBF SELECT id,HEX(a) FROM t1 ORDER BY a DESC,id DESC; id HEX(a) 5 EFBFBF 7 F48FBFBF 6 F0908080 4 E0A080 3 DFBF 2 C280 1 61 SELECT COUNT(DISTINCT a) FROM t1; COUNT(DISTINCT a) 6 ALTER TABLE t1 MODIFY a VARCHAR(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin; SELECT id,HEX(a) FROM t1 ORDER BY a; id HEX(a) 1 61 2 C280 3 DFBF 4 E0A080 5 EFBFBF 6 F0908080 7 F48FBFBF SELECT id,HEX(a) FROM t1 ORDER BY a DESC,id DESC; id HEX(a) 7 F48FBFBF 6 F0908080 5 EFBFBF 4 E0A080 3 DFBF 2 C280 1 61 SELECT COUNT(DISTINCT a) FROM t1; COUNT(DISTINCT a) 7 DROP TABLE t1; # # ctype_utf8mb4.inc: End of 10.1 tests # # # End of ctype_utf8mb4.inc #