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); 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 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=MyISAM 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); 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 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); 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 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 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) 65535 65535 65534 32767 65535 43690 65535 43690 65534 32767 drop table t1; create table t1 (s1 char(10) character set utf8mb4); 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); 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); 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))); 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 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); 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 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci 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 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=MyISAM 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))); 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 COLLATE utf8mb4_general_ci DEFAULT NULL, UNIQUE KEY `a` (`c`(1)) USING HASH ) ENGINE=MEMORY 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=heap; 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=MEMORY 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))); 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 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=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 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=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 = "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' ); 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 COLLATE utf8mb4_general_ci DEFAULT NULL, `b` varchar(15) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=MyISAM 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); 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; # # 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 DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci 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 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; SELECT @@collation_connection; @@collation_connection utf8mb4_bin SELECT '\%b' LIKE '%\%'; '\%b' LIKE '%\%' 0 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 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'\xC9' using utf8mb4) < convert(_koi8r'\xCA' 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'); 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; 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: Note 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: Note 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 (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; 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 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; 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; 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 (utf8mb3_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)) 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); 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 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 order by binary utf8mb4; 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 order by binary utf8mb4; 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 order by binary utf8mb4; 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); 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: Note 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 DEFAULT NULL, PRIMARY KEY (`clipid`), KEY `tape` (`Tape`(250)) ) ENGINE=MyISAM 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; 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) 65131 EFB9ABF09D849EF09D859EF09D859EF09D8480F09D859FEFB9ABEFB9ABF09D85A0EFB9AB 119040 F09D8480 119070 F09D849E 119134 F09D859E 119247 F09D878F 120607 F09D9C9F 120735 F09D9E9F 917999 F3A087AF 1114111 F48FBFBF 119070 F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480 119070 F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480 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; 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')) F09D8480EA9DA8 F09D849EEA9DA8 F09D859EEA9DA8 F09D878FEA9DA8 F09D9C9FEA9DA8 F09D9E9FEA9DA8 F48FBFBFEA9DA8 F3A087AFEA9DA8 F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480EA9DA8 EFB9ABF09D849EF09D859EF09D859EF09D8480F09D859FEFB9ABEFB9ABF09D85A0EFB9ABEA9DA8 F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480EA9DA8 3F3F3F3FEA9DA8 SELECT HEX(CONCAT(utf8mb4_encoding, utf8mb3_encoding)) FROM t1,t2; HEX(CONCAT(utf8mb4_encoding, utf8mb3_encoding)) F09D8480EA9DA8 F09D8480EFB9AB F09D84803F3F3F3F F09D849EEA9DA8 F09D849EEFB9AB F09D849E3F3F3F3F F09D859EEA9DA8 F09D859EEFB9AB F09D859E3F3F3F3F F09D878FEA9DA8 F09D878FEFB9AB F09D878F3F3F3F3F F09D9C9FEA9DA8 F09D9C9FEFB9AB F09D9C9F3F3F3F3F F09D9E9FEA9DA8 F09D9E9FEFB9AB F09D9E9F3F3F3F3F F48FBFBFEA9DA8 F48FBFBFEFB9AB F48FBFBF3F3F3F3F F3A087AFEA9DA8 F3A087AFEFB9AB F3A087AF3F3F3F3F F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480EA9DA8 F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480EFB9AB F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D84803F3F3F3F EFB9ABF09D849EF09D859EF09D859EF09D8480F09D859FEFB9ABEFB9ABF09D85A0EFB9ABEA9DA8 EFB9ABF09D849EF09D859EF09D859EF09D8480F09D859FEFB9ABEFB9ABF09D85A0EFB9ABEFB9AB EFB9ABF09D849EF09D859EF09D859EF09D8480F09D859FEFB9ABEFB9ABF09D85A0EFB9AB3F3F3F3F F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480EA9DA8 F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D8480EFB9AB F09D849EF09D859EF09D859EF09D8480F09D859FF09D859FF09D859FF09D85A0F09D85A0F09D84803F3F3F3F 3F3F3F3FEA9DA8 3F3F3F3FEFB9AB 3F3F3F3F3F3F3F3F 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; Warnings: Warning 1366 Incorrect string value: '\xF0\x9D\x84\x80' for column `test`.`t1`.`utf8mb4_encoding` at row 1 Warning 1366 Incorrect string value: '\xF0\x9D\x84\x9E' for column `test`.`t1`.`utf8mb4_encoding` at row 2 Warning 1366 Incorrect string value: '\xF0\x9D\x85\x9E' for column `test`.`t1`.`utf8mb4_encoding` at row 3 Warning 1366 Incorrect string value: '\xF0\x9D\x87\x8F' for column `test`.`t1`.`utf8mb4_encoding` at row 4 Warning 1366 Incorrect string value: '\xF0\x9D\x9C\x9F' for column `test`.`t1`.`utf8mb4_encoding` at row 5 Warning 1366 Incorrect string value: '\xF0\x9D\x9E\x9F' for column `test`.`t1`.`utf8mb4_encoding` at row 6 Warning 1366 Incorrect string value: '\xF4\x8F\xBF\xBF' for column `test`.`t1`.`utf8mb4_encoding` at row 7 Warning 1366 Incorrect string value: '\xF3\xA0\x87\xAF' for column `test`.`t1`.`utf8mb4_encoding` at row 8 Warning 1366 Incorrect string value: '\xF0\x9D\x84\x9E\xF0\x9D...' for column `test`.`t1`.`utf8mb4_encoding` at row 9 Warning 1366 Incorrect string value: '\xF0\x9D\x84\x9E\xF0\x9D...' for column `test`.`t1`.`utf8mb4_encoding` at row 10 Warning 1366 Incorrect string value: '\xF0\x9D\x84\x9E\xF0\x9D...' for column `test`.`t1`.`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=utf8mb3 COLLATE=utf8mb3_general_ci 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 3F3F3F3F ???? 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 COLLATE=utf8mb4_general_ci SELECT u_decimal,hex(utf8mb3_encoding) FROM t2; u_decimal hex(utf8mb3_encoding) 42856 EA9DA8 65131 EFB9AB 1114111 3F3F3F3F 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=utf8mb3 COLLATE=utf8mb3_general_ci SELECT u_decimal,hex(utf8mb3_encoding) FROM t2; u_decimal hex(utf8mb3_encoding) 42856 EA9DA8 65131 EFB9AB 1114111 3F3F3F3F 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=utf8mb3 COLLATE=utf8mb3_general_ci 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 3F3F3F3F 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=MyISAM DEFAULT CHARSET=utf8mb3 COLLATE=utf8mb3_general_ci 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 3F3F3F3F 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=MyISAM DEFAULT CHARSET=utf8mb3 COLLATE=utf8mb3_general_ci SELECT u_decimal,hex(utf8mb3_encoding) FROM t2; u_decimal hex(utf8mb3_encoding) 42856 EA9DA8 65131 EFB9AB 1114111 3F3F3F3F 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 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=MyISAM 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); 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; # # 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); SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR 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: Note 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=utf8mb3 COLLATE=utf8mb3_general_ci 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 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci 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 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci DROP TABLE t1, t2; # # Bug#13581962 HIGH MEMORY USAGE ATTEMPT, THEN CRASH WITH LONGTEXT, UNION, USER VARIABLE # Bug#14096619 UNABLE TO RESTORE DATABASE DUMP # 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 test for Bug#13581962,Bug#14096619 # # MDEV-9319 ALTER from a bigger to a smaller blob type truncates too much data # SET NAMES utf8mb4; CREATE TABLE t1 (a TEXT CHARACTER SET utf8mb4); INSERT INTO t1 VALUES (REPEAT('😎',100)); SELECT OCTET_LENGTH(a) FROM t1; OCTET_LENGTH(a) 400 SET STATEMENT sql_mode = 'NO_ENGINE_SUBSTITUTION' FOR ALTER TABLE t1 MODIFY a TINYTEXT CHARACTER SET utf8mb4; Warnings: Warning 1265 Data truncated for column 'a' at row 1 SELECT OCTET_LENGTH(a),a FROM t1; OCTET_LENGTH(a) a 252 😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎😎 DROP TABLE t1; # # MDEV-8402 Bug#77473 Bug#21317406 TRUNCATED DATA WITH SUBQUERY & UTF8 # # SET NAMES utf8mb4; SELECT length(repeat(_utf8mb4 0xE29883, 21844)) AS data; data 65532 SELECT length(data) AS len FROM ( SELECT repeat(_utf8mb4 0xE29883, 21844) AS data ) AS sub; len 65532 SELECT length(repeat(_utf8mb4 0xE29883, 21846)) AS data; data 65538 SELECT length(data) AS len FROM ( SELECT repeat(_utf8mb4 0xE29883, 21846) AS data ) AS sub; len 65538 SELECT LENGTH(data) AS len FROM (SELECT REPEAT('☃', 21844) AS data ) AS sub; len 65532 SELECT LENGTH(data) AS len FROM (SELECT REPEAT('☃', 21845) AS data ) AS sub; len 65535 SELECT LENGTH(data) AS len FROM (SELECT REPEAT('☃', 21846) AS data ) AS sub; len 65538 SELECT LENGTH(data) AS len FROM (SELECT REPEAT('☃', 65535) AS data ) AS sub; len 196605 SELECT LENGTH(data) AS len FROM (SELECT REPEAT('☃', 65536) AS data ) AS sub; len 196608 # # MDEV-15624 Changing the default character set to utf8mb4 changes query evaluation in a very surprising way # SET NAMES utf8mb4; CREATE TABLE t1 (id INT); INSERT INTO t1 VALUES (1),(2),(3); SELECT COUNT(DISTINCT c) FROM (SELECT id, REPLACE(UUID(), "-", "") AS c FROM t1) AS d1; COUNT(DISTINCT c) 3 SELECT DISTINCT INSERT(uuid(), 9, 1, "X") AS c FROM t1; c xxxxxxxxxxxxx-xxxx-xxxx-xxxxxxxxxxxx xxxxxxxxxxxxx-xxxx-xxxx-xxxxxxxxxxxx xxxxxxxxxxxxx-xxxx-xxxx-xxxxxxxxxxxx SELECT COUNT(DISTINCT c) FROM (SELECT id, INSERT(UUID(), 9, 1, "X") AS c FROM t1) AS d1; COUNT(DISTINCT c) 3 SELECT DISTINCT INSERT(UUID(), 9, 1, "X") AS c FROM t1; c xxxxxxxxxxxxx-xxxx-xxxx-xxxxxxxxxxxx xxxxxxxxxxxxx-xxxx-xxxx-xxxxxxxxxxxx xxxxxxxxxxxxx-xxxx-xxxx-xxxxxxxxxxxx DROP TABLE t1; # # End of 5.5 tests # # # WL#3664 WEIGHT_STRING # set names utf8mb4; select @@collation_connection; @@collation_connection utf8mb4_general_ci CREATE TABLE t1 AS SELECT 'a' AS a; SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `a` varchar(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci CREATE TABLE t2 AS SELECT WEIGHT_STRING(a) AS ws FROM t1; SHOW CREATE TABLE t2; Table Create Table t2 CREATE TABLE `t2` ( `ws` varbinary(2) DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci SELECT HEX(WEIGHT_STRING(a)) FROM t1; HEX(WEIGHT_STRING(a)) 0041 SELECT HEX(ws) FROM t2; HEX(ws) 0041 DROP TABLE t2; DROP TABLE t1; CREATE TABLE t1 AS SELECT REPEAT('a',5) AS a; SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `a` varchar(5) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci CREATE TABLE t2 AS SELECT WEIGHT_STRING(a) AS ws FROM t1; SHOW CREATE TABLE t2; Table Create Table t2 CREATE TABLE `t2` ( `ws` varbinary(10) DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci SELECT HEX(WEIGHT_STRING(a)) FROM t1; HEX(WEIGHT_STRING(a)) 00410041004100410041 SELECT HEX(ws) FROM t2; HEX(ws) 00410041004100410041 DROP TABLE t2; CREATE TABLE t2 AS SELECT WEIGHT_STRING(a AS CHAR(3)) AS ws FROM t1; SHOW CREATE TABLE t2; Table Create Table t2 CREATE TABLE `t2` ( `ws` varbinary(6) DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci SELECT HEX(WEIGHT_STRING(a AS CHAR(3))) FROM t1; HEX(WEIGHT_STRING(a AS CHAR(3))) 004100410041 SELECT HEX(ws) FROM t2; HEX(ws) 004100410041 DROP TABLE t2; CREATE TABLE t2 AS SELECT WEIGHT_STRING(a AS CHAR(10)) AS ws FROM t1; SHOW CREATE TABLE t2; Table Create Table t2 CREATE TABLE `t2` ( `ws` varbinary(20) DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci SELECT HEX(WEIGHT_STRING(a AS CHAR(10))) FROM t1; HEX(WEIGHT_STRING(a AS CHAR(10))) 0041004100410041004100200020002000200020 SELECT HEX(ws) FROM t2; HEX(ws) 0041004100410041004100200020002000200020 DROP TABLE t2; DROP TABLE t1; select hex(weight_string('a')); hex(weight_string('a')) 0041 select hex(weight_string('A')); hex(weight_string('A')) 0041 select hex(weight_string('abc')); hex(weight_string('abc')) 004100420043 select hex(weight_string('abc' as char(2))); hex(weight_string('abc' as char(2))) 00410042 select hex(weight_string('abc' as char(3))); hex(weight_string('abc' as char(3))) 004100420043 select hex(weight_string('abc' as char(5))); hex(weight_string('abc' as char(5))) 00410042004300200020 select hex(weight_string('abc', 1, 2, 0xC0)); hex(weight_string('abc', 1, 2, 0xC0)) 00 select hex(weight_string('abc', 2, 2, 0xC0)); hex(weight_string('abc', 2, 2, 0xC0)) 0041 select hex(weight_string('abc', 3, 2, 0xC0)); hex(weight_string('abc', 3, 2, 0xC0)) 004100 select hex(weight_string('abc', 4, 2, 0xC0)); hex(weight_string('abc', 4, 2, 0xC0)) 00410042 select hex(weight_string('abc', 5, 2, 0xC0)); hex(weight_string('abc', 5, 2, 0xC0)) 0041004200 select hex(weight_string('abc',25, 2, 0xC0)); hex(weight_string('abc',25, 2, 0xC0)) 00410042002000200020002000200020002000200020002000 select hex(weight_string('abc', 1, 3, 0xC0)); hex(weight_string('abc', 1, 3, 0xC0)) 00 select hex(weight_string('abc', 2, 3, 0xC0)); hex(weight_string('abc', 2, 3, 0xC0)) 0041 select hex(weight_string('abc', 3, 3, 0xC0)); hex(weight_string('abc', 3, 3, 0xC0)) 004100 select hex(weight_string('abc', 4, 3, 0xC0)); hex(weight_string('abc', 4, 3, 0xC0)) 00410042 select hex(weight_string('abc', 5, 3, 0xC0)); hex(weight_string('abc', 5, 3, 0xC0)) 0041004200 select hex(weight_string('abc',25, 3, 0xC0)); hex(weight_string('abc',25, 3, 0xC0)) 00410042004300200020002000200020002000200020002000 select hex(weight_string('abc', 1, 4, 0xC0)); hex(weight_string('abc', 1, 4, 0xC0)) 00 select hex(weight_string('abc', 2, 4, 0xC0)); hex(weight_string('abc', 2, 4, 0xC0)) 0041 select hex(weight_string('abc', 3, 4, 0xC0)); hex(weight_string('abc', 3, 4, 0xC0)) 004100 select hex(weight_string('abc', 4, 4, 0xC0)); hex(weight_string('abc', 4, 4, 0xC0)) 00410042 select hex(weight_string('abc', 5, 4, 0xC0)); hex(weight_string('abc', 5, 4, 0xC0)) 0041004200 select hex(weight_string('abc',25, 4, 0xC0)); hex(weight_string('abc',25, 4, 0xC0)) 00410042004300200020002000200020002000200020002000 select @@collation_connection; @@collation_connection utf8mb4_general_ci select hex(weight_string(cast(_latin1 0x80 as char))); hex(weight_string(cast(_latin1 0x80 as char))) 20AC select hex(weight_string(cast(_latin1 0x808080 as char))); hex(weight_string(cast(_latin1 0x808080 as char))) 20AC20AC20AC select hex(weight_string(cast(_latin1 0x808080 as char) as char(2))); hex(weight_string(cast(_latin1 0x808080 as char) as char(2))) 20AC20AC select hex(weight_string(cast(_latin1 0x808080 as char) as char(3))); hex(weight_string(cast(_latin1 0x808080 as char) as char(3))) 20AC20AC20AC select hex(weight_string(cast(_latin1 0x808080 as char) as char(5))); hex(weight_string(cast(_latin1 0x808080 as char) as char(5))) 20AC20AC20AC00200020 select hex(weight_string(cast(_latin1 0x808080 as char), 1, 2, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 1, 2, 0xC0)) 20 select hex(weight_string(cast(_latin1 0x808080 as char), 2, 2, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 2, 2, 0xC0)) 20AC select hex(weight_string(cast(_latin1 0x808080 as char), 3, 2, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 3, 2, 0xC0)) 20AC20 select hex(weight_string(cast(_latin1 0x808080 as char), 4, 2, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 4, 2, 0xC0)) 20AC20AC select hex(weight_string(cast(_latin1 0x808080 as char), 5, 2, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 5, 2, 0xC0)) 20AC20AC00 select hex(weight_string(cast(_latin1 0x808080 as char),25, 2, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char),25, 2, 0xC0)) 20AC20AC002000200020002000200020002000200020002000 select hex(weight_string(cast(_latin1 0x808080 as char), 1, 3, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 1, 3, 0xC0)) 20 select hex(weight_string(cast(_latin1 0x808080 as char), 2, 3, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 2, 3, 0xC0)) 20AC select hex(weight_string(cast(_latin1 0x808080 as char), 3, 3, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 3, 3, 0xC0)) 20AC20 select hex(weight_string(cast(_latin1 0x808080 as char), 4, 3, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 4, 3, 0xC0)) 20AC20AC select hex(weight_string(cast(_latin1 0x808080 as char), 5, 3, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 5, 3, 0xC0)) 20AC20AC20 select hex(weight_string(cast(_latin1 0x808080 as char),25, 3, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char),25, 3, 0xC0)) 20AC20AC20AC00200020002000200020002000200020002000 select hex(weight_string(cast(_latin1 0x808080 as char), 1, 4, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 1, 4, 0xC0)) 20 select hex(weight_string(cast(_latin1 0x808080 as char), 2, 4, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 2, 4, 0xC0)) 20AC select hex(weight_string(cast(_latin1 0x808080 as char), 3, 4, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 3, 4, 0xC0)) 20AC20 select hex(weight_string(cast(_latin1 0x808080 as char), 4, 4, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 4, 4, 0xC0)) 20AC20AC select hex(weight_string(cast(_latin1 0x808080 as char), 5, 4, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 5, 4, 0xC0)) 20AC20AC20 select hex(weight_string(cast(_latin1 0x808080 as char),25, 4, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char),25, 4, 0xC0)) 20AC20AC20AC00200020002000200020002000200020002000 select @@collation_connection; @@collation_connection utf8mb4_general_ci select hex(weight_string('a' LEVEL 1)); hex(weight_string('a' LEVEL 1)) 0041 select hex(weight_string('A' LEVEL 1)); hex(weight_string('A' LEVEL 1)) 0041 select hex(weight_string('abc' LEVEL 1)); hex(weight_string('abc' LEVEL 1)) 004100420043 select hex(weight_string('abc' as char(2) LEVEL 1)); hex(weight_string('abc' as char(2) LEVEL 1)) 00410042 select hex(weight_string('abc' as char(3) LEVEL 1)); hex(weight_string('abc' as char(3) LEVEL 1)) 004100420043 select hex(weight_string('abc' as char(5) LEVEL 1)); hex(weight_string('abc' as char(5) LEVEL 1)) 00410042004300200020 select hex(weight_string('abc' as char(5) LEVEL 1 REVERSE)); hex(weight_string('abc' as char(5) LEVEL 1 REVERSE)) 20002000430042004100 select hex(weight_string('abc' as char(5) LEVEL 1 DESC)); hex(weight_string('abc' as char(5) LEVEL 1 DESC)) FFBEFFBDFFBCFFDFFFDF select hex(weight_string('abc' as char(5) LEVEL 1 DESC REVERSE)); hex(weight_string('abc' as char(5) LEVEL 1 DESC REVERSE)) DFFFDFFFBCFFBDFFBEFF set @@collation_connection=utf8mb4_bin; select @@collation_connection; @@collation_connection utf8mb4_bin CREATE TABLE t1 AS SELECT 'a' AS a; SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `a` varchar(1) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci CREATE TABLE t2 AS SELECT WEIGHT_STRING(a) AS ws FROM t1; SHOW CREATE TABLE t2; Table Create Table t2 CREATE TABLE `t2` ( `ws` varbinary(3) DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci SELECT HEX(WEIGHT_STRING(a)) FROM t1; HEX(WEIGHT_STRING(a)) 000061 SELECT HEX(ws) FROM t2; HEX(ws) 000061 DROP TABLE t2; DROP TABLE t1; CREATE TABLE t1 AS SELECT REPEAT('a',5) AS a; SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `a` varchar(5) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci CREATE TABLE t2 AS SELECT WEIGHT_STRING(a) AS ws FROM t1; SHOW CREATE TABLE t2; Table Create Table t2 CREATE TABLE `t2` ( `ws` varbinary(15) DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci SELECT HEX(WEIGHT_STRING(a)) FROM t1; HEX(WEIGHT_STRING(a)) 000061000061000061000061000061 SELECT HEX(ws) FROM t2; HEX(ws) 000061000061000061000061000061 DROP TABLE t2; CREATE TABLE t2 AS SELECT WEIGHT_STRING(a AS CHAR(3)) AS ws FROM t1; SHOW CREATE TABLE t2; Table Create Table t2 CREATE TABLE `t2` ( `ws` varbinary(9) DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci SELECT HEX(WEIGHT_STRING(a AS CHAR(3))) FROM t1; HEX(WEIGHT_STRING(a AS CHAR(3))) 000061000061000061 SELECT HEX(ws) FROM t2; HEX(ws) 000061000061000061 DROP TABLE t2; CREATE TABLE t2 AS SELECT WEIGHT_STRING(a AS CHAR(10)) AS ws FROM t1; SHOW CREATE TABLE t2; Table Create Table t2 CREATE TABLE `t2` ( `ws` varbinary(30) DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci SELECT HEX(WEIGHT_STRING(a AS CHAR(10))) FROM t1; HEX(WEIGHT_STRING(a AS CHAR(10))) 000061000061000061000061000061000020000020000020000020000020 SELECT HEX(ws) FROM t2; HEX(ws) 000061000061000061000061000061000020000020000020000020000020 DROP TABLE t2; DROP TABLE t1; select hex(weight_string('a')); hex(weight_string('a')) 000061 select hex(weight_string('A')); hex(weight_string('A')) 000041 select hex(weight_string('abc')); hex(weight_string('abc')) 000061000062000063 select hex(weight_string('abc' as char(2))); hex(weight_string('abc' as char(2))) 000061000062 select hex(weight_string('abc' as char(3))); hex(weight_string('abc' as char(3))) 000061000062000063 select hex(weight_string('abc' as char(5))); hex(weight_string('abc' as char(5))) 000061000062000063000020000020 select hex(weight_string('abc', 1, 2, 0xC0)); hex(weight_string('abc', 1, 2, 0xC0)) 00 select hex(weight_string('abc', 2, 2, 0xC0)); hex(weight_string('abc', 2, 2, 0xC0)) 0000 select hex(weight_string('abc', 3, 2, 0xC0)); hex(weight_string('abc', 3, 2, 0xC0)) 000061 select hex(weight_string('abc', 4, 2, 0xC0)); hex(weight_string('abc', 4, 2, 0xC0)) 00006100 select hex(weight_string('abc', 5, 2, 0xC0)); hex(weight_string('abc', 5, 2, 0xC0)) 0000610000 select hex(weight_string('abc',25, 2, 0xC0)); hex(weight_string('abc',25, 2, 0xC0)) 00006100006200002000002000002000002000002000002000 select hex(weight_string('abc', 1, 3, 0xC0)); hex(weight_string('abc', 1, 3, 0xC0)) 00 select hex(weight_string('abc', 2, 3, 0xC0)); hex(weight_string('abc', 2, 3, 0xC0)) 0000 select hex(weight_string('abc', 3, 3, 0xC0)); hex(weight_string('abc', 3, 3, 0xC0)) 000061 select hex(weight_string('abc', 4, 3, 0xC0)); hex(weight_string('abc', 4, 3, 0xC0)) 00006100 select hex(weight_string('abc', 5, 3, 0xC0)); hex(weight_string('abc', 5, 3, 0xC0)) 0000610000 select hex(weight_string('abc',25, 3, 0xC0)); hex(weight_string('abc',25, 3, 0xC0)) 00006100006200006300002000002000002000002000002000 select hex(weight_string('abc', 1, 4, 0xC0)); hex(weight_string('abc', 1, 4, 0xC0)) 00 select hex(weight_string('abc', 2, 4, 0xC0)); hex(weight_string('abc', 2, 4, 0xC0)) 0000 select hex(weight_string('abc', 3, 4, 0xC0)); hex(weight_string('abc', 3, 4, 0xC0)) 000061 select hex(weight_string('abc', 4, 4, 0xC0)); hex(weight_string('abc', 4, 4, 0xC0)) 00006100 select hex(weight_string('abc', 5, 4, 0xC0)); hex(weight_string('abc', 5, 4, 0xC0)) 0000610000 select hex(weight_string('abc',25, 4, 0xC0)); hex(weight_string('abc',25, 4, 0xC0)) 00006100006200006300002000002000002000002000002000 select @@collation_connection; @@collation_connection utf8mb4_bin select hex(weight_string(cast(_latin1 0x80 as char))); hex(weight_string(cast(_latin1 0x80 as char))) 0020AC select hex(weight_string(cast(_latin1 0x808080 as char))); hex(weight_string(cast(_latin1 0x808080 as char))) 0020AC0020AC0020AC select hex(weight_string(cast(_latin1 0x808080 as char) as char(2))); hex(weight_string(cast(_latin1 0x808080 as char) as char(2))) 0020AC0020AC select hex(weight_string(cast(_latin1 0x808080 as char) as char(3))); hex(weight_string(cast(_latin1 0x808080 as char) as char(3))) 0020AC0020AC0020AC select hex(weight_string(cast(_latin1 0x808080 as char) as char(5))); hex(weight_string(cast(_latin1 0x808080 as char) as char(5))) 0020AC0020AC0020AC000020000020 select hex(weight_string(cast(_latin1 0x808080 as char), 1, 2, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 1, 2, 0xC0)) 00 select hex(weight_string(cast(_latin1 0x808080 as char), 2, 2, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 2, 2, 0xC0)) 0020 select hex(weight_string(cast(_latin1 0x808080 as char), 3, 2, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 3, 2, 0xC0)) 0020AC select hex(weight_string(cast(_latin1 0x808080 as char), 4, 2, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 4, 2, 0xC0)) 0020AC00 select hex(weight_string(cast(_latin1 0x808080 as char), 5, 2, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 5, 2, 0xC0)) 0020AC0020 select hex(weight_string(cast(_latin1 0x808080 as char),25, 2, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char),25, 2, 0xC0)) 0020AC0020AC00002000002000002000002000002000002000 select hex(weight_string(cast(_latin1 0x808080 as char), 1, 3, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 1, 3, 0xC0)) 00 select hex(weight_string(cast(_latin1 0x808080 as char), 2, 3, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 2, 3, 0xC0)) 0020 select hex(weight_string(cast(_latin1 0x808080 as char), 3, 3, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 3, 3, 0xC0)) 0020AC select hex(weight_string(cast(_latin1 0x808080 as char), 4, 3, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 4, 3, 0xC0)) 0020AC00 select hex(weight_string(cast(_latin1 0x808080 as char), 5, 3, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 5, 3, 0xC0)) 0020AC0020 select hex(weight_string(cast(_latin1 0x808080 as char),25, 3, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char),25, 3, 0xC0)) 0020AC0020AC0020AC00002000002000002000002000002000 select hex(weight_string(cast(_latin1 0x808080 as char), 1, 4, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 1, 4, 0xC0)) 00 select hex(weight_string(cast(_latin1 0x808080 as char), 2, 4, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 2, 4, 0xC0)) 0020 select hex(weight_string(cast(_latin1 0x808080 as char), 3, 4, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 3, 4, 0xC0)) 0020AC select hex(weight_string(cast(_latin1 0x808080 as char), 4, 4, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 4, 4, 0xC0)) 0020AC00 select hex(weight_string(cast(_latin1 0x808080 as char), 5, 4, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char), 5, 4, 0xC0)) 0020AC0020 select hex(weight_string(cast(_latin1 0x808080 as char),25, 4, 0xC0)); hex(weight_string(cast(_latin1 0x808080 as char),25, 4, 0xC0)) 0020AC0020AC0020AC00002000002000002000002000002000 select @@collation_connection; @@collation_connection utf8mb4_bin select hex(weight_string('a' LEVEL 1)); hex(weight_string('a' LEVEL 1)) 000061 select hex(weight_string('A' LEVEL 1)); hex(weight_string('A' LEVEL 1)) 000041 select hex(weight_string('abc' LEVEL 1)); hex(weight_string('abc' LEVEL 1)) 000061000062000063 select hex(weight_string('abc' as char(2) LEVEL 1)); hex(weight_string('abc' as char(2) LEVEL 1)) 000061000062 select hex(weight_string('abc' as char(3) LEVEL 1)); hex(weight_string('abc' as char(3) LEVEL 1)) 000061000062000063 select hex(weight_string('abc' as char(5) LEVEL 1)); hex(weight_string('abc' as char(5) LEVEL 1)) 000061000062000063000020000020 select hex(weight_string('abc' as char(5) LEVEL 1 REVERSE)); hex(weight_string('abc' as char(5) LEVEL 1 REVERSE)) 200000200000630000620000610000 select hex(weight_string('abc' as char(5) LEVEL 1 DESC)); hex(weight_string('abc' as char(5) LEVEL 1 DESC)) FFFF9EFFFF9DFFFF9CFFFFDFFFFFDF select hex(weight_string('abc' as char(5) LEVEL 1 DESC REVERSE)); hex(weight_string('abc' as char(5) LEVEL 1 DESC REVERSE)) DFFFFFDFFFFF9CFFFF9DFFFF9EFFFF # # End of 5.6 tests # # # Start of 10.0 tests # # # MDEV-11343 LOAD DATA INFILE fails to load data with an escape character followed by a multi-byte character # CREATE TABLE t1 (a TEXT CHARACTER SET utf8mb4); LOAD DATA INFILE '../../std_data/loaddata/mdev-11343.txt' INTO TABLE t1 CHARACTER SET utf8mb4; SELECT HEX(a) FROM t1; HEX(a) C3A4 C3A478 78C3A4 78C3A478 EA99A0 EA99A078 78EA99A0 78EA99A078 F09F988E F09F988E78 78F09F988E 78F09F988E78 DROP TABLE t1; # # MDEV-6566 Different INSERT behaviour on bad bytes with and without character set conversion # # # This test sets session character set to 3-byte utf8, # but then sends a 4-byte sequence (which is wrong for 3-byte utf8). # It should be replaced to four question marks: '????' in both columns # (i.e. four unknown bytes are replaced to four question marks), # then the rest of the string should be stored, so we get 'a ???? b'. # SET NAMES utf8; CREATE TABLE t1 ( a VARCHAR(32) CHARACTER SET utf8mb4, b VARCHAR(32) CHARACTER SET utf8 ); INSERT IGNORE INTO t1 SELECT 'a 😁 b', 'a 😁 b'; Warnings: Warning 1366 Incorrect string value: '\xF0\x9F\x98\x81 b' for column `test`.`t1`.`a` at row 1 Warning 1366 Incorrect string value: '\xF0\x9F\x98\x81 b' for column `test`.`t1`.`b` at row 1 SELECT * FROM t1; a b a ???? b a ???? b DROP TABLE t1; # # This test sets session character set to 4-byte utf8, # then normally sends a 4-byte sequence. # It should be stored AS IS into the utf8mb4 column (a), # and should be replaced to a single question mark in the utf8 column (b) # (i.e. one character that cannot be converted is replaced to one question mark). # SET NAMES utf8mb4; CREATE TABLE t1 ( a VARCHAR(32) CHARACTER SET utf8mb4, b VARCHAR(32) CHARACTER SET utf8 ); INSERT IGNORE INTO t1 SELECT 'a 😁 b', 'a 😁 b'; Warnings: Warning 1366 Incorrect string value: '\xF0\x9F\x98\x81 b' for column `test`.`t1`.`b` at row 1 SELECT * FROM t1; a b a 😁 b a ? b DROP TABLE t1; # # MDEV-8949: COLUMN_CREATE unicode name breakage # SET NAMES utf8mb4; SELECT COLUMN_JSON(COLUMN_CREATE(_utf8mb4 0xF09F988E, 1)); COLUMN_JSON(COLUMN_CREATE(_utf8mb4 0xF09F988E, 1)) {"😎":1} SELECT COLUMN_LIST(COLUMN_CREATE(_utf8mb4 0xF09F988E, 1)); COLUMN_LIST(COLUMN_CREATE(_utf8mb4 0xF09F988E, 1)) `😎` SELECT COLUMN_GET(COLUMN_CREATE(_utf8mb4 0xF09F988E, 1), _utf8mb4 0xF09F988E as int); COLUMN_GET(COLUMN_CREATE(_utf8mb4 0xF09F988E, 1), _utf8mb4 0xF09F988E as int) 1 CREATE TABLE t1 AS SELECT COLUMN_LIST(COLUMN_CREATE('a',1)), COLUMN_JSON(COLUMN_CREATE('b',1)); SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `COLUMN_LIST(COLUMN_CREATE('a',1))` longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL, `COLUMN_JSON(COLUMN_CREATE('b',1))` longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci DROP TABLE t1; SET NAMES default; SET NAMES utf8mb4; # # MDEV-13118 Wrong results with LOWER and UPPER and subquery # SET @save_optimizer_switch=@@optimizer_switch; SET optimizer_switch=_latin1'derived_merge=on'; CREATE TABLE t1 AS SELECT REPEAT('a', 10) AS t LIMIT 0; SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `t` varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci INSERT INTO t1 VALUES ('abcdefghi'),('ABCDEFGHI'); SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT LOWER(t) t2 FROM t1) sub; c2 abcdefghi-abcdefghi abcdefghi-abcdefghi SELECT CONCAT(t2,'-',t2) c2 FROM (SELECT UPPER(t) t2 FROM t1) sub; c2 ABCDEFGHI-ABCDEFGHI ABCDEFGHI-ABCDEFGHI DROP TABLE t1; SET optimizer_switch=@save_optimizer_switch; # # End of 10.0 tests # # # Start of 10.1 tests # # # MDEV-6572 "USE dbname" with a bad sequence erroneously connects to a wrong database # SET NAMES utf8mb4; SELECT * FROM `test😁😁test`; ERROR HY000: Invalid utf8mb4 character string: 'test\xF0\x9F\x98\x81\xF0\x9F\x98\x81test' # # MDEV-7231 Field ROUTINE_DEFINITION in INFORMATION_SCHEMA.`ROUTINES` contains broken procedure body when used shielding quotes inside. # SET NAMES utf8mb4; CREATE FUNCTION f1() RETURNS TEXT CHARACTER SET utf8mb4 RETURN CONCAT('😎','x😎','😎y','x😎y'); SELECT ROUTINE_DEFINITION FROM INFORMATION_SCHEMA.ROUTINES WHERE ROUTINE_SCHEMA='test' AND SPECIFIC_NAME ='f1'; ROUTINE_DEFINITION RETURN CONCAT('?','x?','?y','x?y') SELECT body_utf8 FROM mysql.proc WHERE name='f1'; body_utf8 RETURN CONCAT('?','x?','?y','x?y') DROP FUNCTION f1; # # End of 10.1 tests # # # End of 10.2 tests # # # MDEV-9842 LOAD DATA INFILE does not work well with a TEXT column when using sjis # CREATE TABLE t1 (a TEXT CHARACTER SET utf8mb4); LOAD DATA INFILE '../../std_data/loaddata/mdev9823.utf8mb4.txt' IGNORE INTO TABLE t1 CHARACTER SET utf8mb4 IGNORE 4 LINES; Warnings: Warning 1366 Incorrect string value: '\xD0' for column `test`.`t1`.`a` at row 1 Warning 1366 Incorrect string value: '\xE1\x80' for column `test`.`t1`.`a` at row 3 Warning 1366 Incorrect string value: '\xF0\x9F\x98' for column `test`.`t1`.`a` at row 5 Warning 1366 Incorrect string value: '\xF0\x9F\x98' for column `test`.`t1`.`a` at row 8 SELECT HEX(a) FROM t1; HEX(a) 3F 78787831 3F3F 78787832 3F3F3F 78787833 F09F988E 3F3F3F DROP TABLE t1; # # MDEV-9711 NO PAD Collatons # SET DEFAULT_STORAGE_ENGINE=MyISAM; # # Start of ctype_pad.inc # # # Unique indexes # CREATE TABLE t1 (a VARCHAR(10) PRIMARY KEY) COLLATE 'utf8mb4_general_nopad_ci'; SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `a` varchar(10) NOT NULL, PRIMARY KEY (`a`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_nopad_ci INSERT INTO t1 VALUES ('abc'),('abc '),(' a'),(' a '),('a '); SELECT HEX(a), a FROM t1 ORDER BY a; HEX(a) a 2061 a 206120 a 61202020 a 616263 abc 6162632020 abc SELECT HEX(a), a FROM t1 IGNORE INDEX(PRIMARY) ORDER BY a; HEX(a) a 2061 a 206120 a 61202020 a 616263 abc 6162632020 abc SELECT HEX(a), a FROM t1 IGNORE INDEX(PRIMARY) ORDER BY a DESC; HEX(a) a 6162632020 abc 616263 abc 61202020 a 206120 a 2061 a # # UNION # CREATE TABLE t2 (a VARCHAR(10)) COLLATE 'utf8mb4_general_nopad_ci'; INSERT INTO t2 VALUES ('abc '),('abc '),(' a'),('a '); SELECT HEX(a),a FROM (SELECT * FROM t1 UNION SELECT * FROM t2 ORDER BY a) td; HEX(a) a 2061 a 206120 a 6120 a 61202020 a 616263 abc 61626320 abc 6162632020 abc DROP TABLE t1; DROP TABLE t2; # # DISTINCT, COUNT, MAX # CREATE TABLE t1 (a VARCHAR(10)) COLLATE 'utf8mb4_general_nopad_ci'; INSERT INTO t1 VALUES ('a'),('a '),(' a'),(' a '),('a '); SELECT HEX(a), a FROM (SELECT DISTINCT a FROM t1 ORDER BY a) td; HEX(a) a 2061 a 206120 a 61 a 612020 a 61202020 a SELECT COUNT(DISTINCT a) FROM t1 ORDER BY a; COUNT(DISTINCT a) 5 SELECT HEX(MAX(a)), MAX(a) FROM t1; HEX(MAX(a)) MAX(a) 61202020 a # # GROUP BY # CREATE TABLE t2 (a VARCHAR(10), b int, c varchar(10)) COLLATE 'utf8mb4_general_nopad_ci'; INSERT t2 values('ab', 12, 'cd'), ('ab', 2, 'ed'), ('aa', 20, 'er'), ('aa ', 0, 'er '); SELECT HEX(a), cnt FROM (SELECT a, COUNT(a) AS cnt FROM t2 GROUP BY a ORDER BY a) AS td; HEX(a) cnt 6161 1 61612020 1 6162 2 DROP TABLE t2; # # Weights # SELECT HEX(WEIGHT_STRING(a AS CHAR(10))) FROM t1; HEX(WEIGHT_STRING(a AS CHAR(10))) 0041000000000000000000000000000000000000 0041002000200000000000000000000000000000 0020004100000000000000000000000000000000 0020004100200000000000000000000000000000 0041002000200020000000000000000000000000 DROP TABLE t1; # # IF, CASE, LEAST # SELECT IF('abc' COLLATE 'utf8mb4_general_nopad_ci' = 'abc ', 'pad', 'nopad'); IF('abc' COLLATE 'utf8mb4_general_nopad_ci' = 'abc ', 'pad', 'nopad') nopad SELECT CASE 'abc' COLLATE 'utf8mb4_general_nopad_ci' WHEN 'abc ' THEN 'pad' ELSE 'nopad' END; CASE 'abc' COLLATE 'utf8mb4_general_nopad_ci' WHEN 'abc ' THEN 'pad' ELSE 'nopad' END nopad SELECT CASE WHEN 'abc' COLLATE 'utf8mb4_general_nopad_ci' = 'abc ' THEN 'pad' ELSE 'nopad' END; CASE WHEN 'abc' COLLATE 'utf8mb4_general_nopad_ci' = 'abc ' THEN 'pad' ELSE 'nopad' END nopad SELECT HEX(LEAST('abc ' COLLATE 'utf8mb4_general_nopad_ci', 'abc ')); HEX(LEAST('abc ' COLLATE 'utf8mb4_general_nopad_ci', 'abc ')) 61626320 SELECT HEX(GREATEST('abc ' COLLATE 'utf8mb4_general_nopad_ci', 'abc ')); HEX(GREATEST('abc ' COLLATE 'utf8mb4_general_nopad_ci', 'abc ')) 6162632020 # # Collation mix # CREATE TABLE t1 (a VARCHAR(10)) COLLATE 'utf8mb4_general_ci'; INSERT INTO t1 VALUES ('a'),('a '); SELECT COUNT(*) FROM t1 WHERE a='a'; COUNT(*) 2 SELECT COUNT(*) FROM t1 WHERE a='a' COLLATE 'utf8mb4_general_ci'; COUNT(*) 2 SELECT COUNT(*) FROM t1 WHERE a='a' COLLATE 'utf8mb4_general_nopad_ci'; COUNT(*) 1 ALTER TABLE t1 MODIFY a VARCHAR(10) COLLATE 'utf8mb4_general_nopad_ci'; SELECT COUNT(*) FROM t1 WHERE a='a'; COUNT(*) 1 SELECT COUNT(*) FROM t1 WHERE a='a' COLLATE 'utf8mb4_general_ci'; COUNT(*) 2 SELECT COUNT(*) FROM t1 WHERE a='a' COLLATE 'utf8mb4_general_nopad_ci'; COUNT(*) 1 DROP TABLE t1; # # End of ctype_pad.inc # SET DEFAULT_STORAGE_ENGINE=HEAP; # # Start of ctype_pad.inc # # # Unique indexes # CREATE TABLE t1 (a VARCHAR(10) PRIMARY KEY) COLLATE 'utf8mb4_general_nopad_ci'; SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `a` varchar(10) NOT NULL, PRIMARY KEY (`a`) ) ENGINE=MEMORY DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_nopad_ci INSERT INTO t1 VALUES ('abc'),('abc '),(' a'),(' a '),('a '); SELECT HEX(a), a FROM t1 ORDER BY a; HEX(a) a 2061 a 206120 a 61202020 a 616263 abc 6162632020 abc SELECT HEX(a), a FROM t1 IGNORE INDEX(PRIMARY) ORDER BY a; HEX(a) a 2061 a 206120 a 61202020 a 616263 abc 6162632020 abc SELECT HEX(a), a FROM t1 IGNORE INDEX(PRIMARY) ORDER BY a DESC; HEX(a) a 6162632020 abc 616263 abc 61202020 a 206120 a 2061 a # # UNION # CREATE TABLE t2 (a VARCHAR(10)) COLLATE 'utf8mb4_general_nopad_ci'; INSERT INTO t2 VALUES ('abc '),('abc '),(' a'),('a '); SELECT HEX(a),a FROM (SELECT * FROM t1 UNION SELECT * FROM t2 ORDER BY a) td; HEX(a) a 2061 a 206120 a 6120 a 61202020 a 616263 abc 61626320 abc 6162632020 abc DROP TABLE t1; DROP TABLE t2; # # DISTINCT, COUNT, MAX # CREATE TABLE t1 (a VARCHAR(10)) COLLATE 'utf8mb4_general_nopad_ci'; INSERT INTO t1 VALUES ('a'),('a '),(' a'),(' a '),('a '); SELECT HEX(a), a FROM (SELECT DISTINCT a FROM t1 ORDER BY a) td; HEX(a) a 2061 a 206120 a 61 a 612020 a 61202020 a SELECT COUNT(DISTINCT a) FROM t1 ORDER BY a; COUNT(DISTINCT a) 5 SELECT HEX(MAX(a)), MAX(a) FROM t1; HEX(MAX(a)) MAX(a) 61202020 a # # GROUP BY # CREATE TABLE t2 (a VARCHAR(10), b int, c varchar(10)) COLLATE 'utf8mb4_general_nopad_ci'; INSERT t2 values('ab', 12, 'cd'), ('ab', 2, 'ed'), ('aa', 20, 'er'), ('aa ', 0, 'er '); SELECT HEX(a), cnt FROM (SELECT a, COUNT(a) AS cnt FROM t2 GROUP BY a ORDER BY a) AS td; HEX(a) cnt 6161 1 61612020 1 6162 2 DROP TABLE t2; # # Weights # SELECT HEX(WEIGHT_STRING(a AS CHAR(10))) FROM t1; HEX(WEIGHT_STRING(a AS CHAR(10))) 0041000000000000000000000000000000000000 0041002000200000000000000000000000000000 0020004100000000000000000000000000000000 0020004100200000000000000000000000000000 0041002000200020000000000000000000000000 DROP TABLE t1; # # IF, CASE, LEAST # SELECT IF('abc' COLLATE 'utf8mb4_general_nopad_ci' = 'abc ', 'pad', 'nopad'); IF('abc' COLLATE 'utf8mb4_general_nopad_ci' = 'abc ', 'pad', 'nopad') nopad SELECT CASE 'abc' COLLATE 'utf8mb4_general_nopad_ci' WHEN 'abc ' THEN 'pad' ELSE 'nopad' END; CASE 'abc' COLLATE 'utf8mb4_general_nopad_ci' WHEN 'abc ' THEN 'pad' ELSE 'nopad' END nopad SELECT CASE WHEN 'abc' COLLATE 'utf8mb4_general_nopad_ci' = 'abc ' THEN 'pad' ELSE 'nopad' END; CASE WHEN 'abc' COLLATE 'utf8mb4_general_nopad_ci' = 'abc ' THEN 'pad' ELSE 'nopad' END nopad SELECT HEX(LEAST('abc ' COLLATE 'utf8mb4_general_nopad_ci', 'abc ')); HEX(LEAST('abc ' COLLATE 'utf8mb4_general_nopad_ci', 'abc ')) 61626320 SELECT HEX(GREATEST('abc ' COLLATE 'utf8mb4_general_nopad_ci', 'abc ')); HEX(GREATEST('abc ' COLLATE 'utf8mb4_general_nopad_ci', 'abc ')) 6162632020 # # Collation mix # CREATE TABLE t1 (a VARCHAR(10)) COLLATE 'utf8mb4_general_ci'; INSERT INTO t1 VALUES ('a'),('a '); SELECT COUNT(*) FROM t1 WHERE a='a'; COUNT(*) 2 SELECT COUNT(*) FROM t1 WHERE a='a' COLLATE 'utf8mb4_general_ci'; COUNT(*) 2 SELECT COUNT(*) FROM t1 WHERE a='a' COLLATE 'utf8mb4_general_nopad_ci'; COUNT(*) 1 ALTER TABLE t1 MODIFY a VARCHAR(10) COLLATE 'utf8mb4_general_nopad_ci'; SELECT COUNT(*) FROM t1 WHERE a='a'; COUNT(*) 1 SELECT COUNT(*) FROM t1 WHERE a='a' COLLATE 'utf8mb4_general_ci'; COUNT(*) 2 SELECT COUNT(*) FROM t1 WHERE a='a' COLLATE 'utf8mb4_general_nopad_ci'; COUNT(*) 1 DROP TABLE t1; # # End of ctype_pad.inc # SET DEFAULT_STORAGE_ENGINE=Default; SET DEFAULT_STORAGE_ENGINE=MyISAM; # # Start of ctype_pad.inc # # # Unique indexes # CREATE TABLE t1 (a VARCHAR(10) PRIMARY KEY) COLLATE 'utf8mb4_nopad_bin'; SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `a` varchar(10) NOT NULL, PRIMARY KEY (`a`) ) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_nopad_bin INSERT INTO t1 VALUES ('abc'),('abc '),(' a'),(' a '),('a '); SELECT HEX(a), a FROM t1 ORDER BY a; HEX(a) a 2061 a 206120 a 61202020 a 616263 abc 6162632020 abc SELECT HEX(a), a FROM t1 IGNORE INDEX(PRIMARY) ORDER BY a; HEX(a) a 2061 a 206120 a 61202020 a 616263 abc 6162632020 abc SELECT HEX(a), a FROM t1 IGNORE INDEX(PRIMARY) ORDER BY a DESC; HEX(a) a 6162632020 abc 616263 abc 61202020 a 206120 a 2061 a # # UNION # CREATE TABLE t2 (a VARCHAR(10)) COLLATE 'utf8mb4_nopad_bin'; INSERT INTO t2 VALUES ('abc '),('abc '),(' a'),('a '); SELECT HEX(a),a FROM (SELECT * FROM t1 UNION SELECT * FROM t2 ORDER BY a) td; HEX(a) a 2061 a 206120 a 6120 a 61202020 a 616263 abc 61626320 abc 6162632020 abc DROP TABLE t1; DROP TABLE t2; # # DISTINCT, COUNT, MAX # CREATE TABLE t1 (a VARCHAR(10)) COLLATE 'utf8mb4_nopad_bin'; INSERT INTO t1 VALUES ('a'),('a '),(' a'),(' a '),('a '); SELECT HEX(a), a FROM (SELECT DISTINCT a FROM t1 ORDER BY a) td; HEX(a) a 2061 a 206120 a 61 a 612020 a 61202020 a SELECT COUNT(DISTINCT a) FROM t1 ORDER BY a; COUNT(DISTINCT a) 5 SELECT HEX(MAX(a)), MAX(a) FROM t1; HEX(MAX(a)) MAX(a) 61202020 a # # GROUP BY # CREATE TABLE t2 (a VARCHAR(10), b int, c varchar(10)) COLLATE 'utf8mb4_nopad_bin'; INSERT t2 values('ab', 12, 'cd'), ('ab', 2, 'ed'), ('aa', 20, 'er'), ('aa ', 0, 'er '); SELECT HEX(a), cnt FROM (SELECT a, COUNT(a) AS cnt FROM t2 GROUP BY a ORDER BY a) AS td; HEX(a) cnt 6161 1 61612020 1 6162 2 DROP TABLE t2; # # Weights # SELECT HEX(WEIGHT_STRING(a AS CHAR(10))) FROM t1; HEX(WEIGHT_STRING(a AS CHAR(10))) 000061000000000000000000000000000000000000000000000000000000 000061000020000020000000000000000000000000000000000000000000 000020000061000000000000000000000000000000000000000000000000 000020000061000020000000000000000000000000000000000000000000 000061000020000020000020000000000000000000000000000000000000 DROP TABLE t1; # # IF, CASE, LEAST # SELECT IF('abc' COLLATE 'utf8mb4_nopad_bin' = 'abc ', 'pad', 'nopad'); IF('abc' COLLATE 'utf8mb4_nopad_bin' = 'abc ', 'pad', 'nopad') nopad SELECT CASE 'abc' COLLATE 'utf8mb4_nopad_bin' WHEN 'abc ' THEN 'pad' ELSE 'nopad' END; CASE 'abc' COLLATE 'utf8mb4_nopad_bin' WHEN 'abc ' THEN 'pad' ELSE 'nopad' END nopad SELECT CASE WHEN 'abc' COLLATE 'utf8mb4_nopad_bin' = 'abc ' THEN 'pad' ELSE 'nopad' END; CASE WHEN 'abc' COLLATE 'utf8mb4_nopad_bin' = 'abc ' THEN 'pad' ELSE 'nopad' END nopad SELECT HEX(LEAST('abc ' COLLATE 'utf8mb4_nopad_bin', 'abc ')); HEX(LEAST('abc ' COLLATE 'utf8mb4_nopad_bin', 'abc ')) 61626320 SELECT HEX(GREATEST('abc ' COLLATE 'utf8mb4_nopad_bin', 'abc ')); HEX(GREATEST('abc ' COLLATE 'utf8mb4_nopad_bin', 'abc ')) 6162632020 # # Collation mix # CREATE TABLE t1 (a VARCHAR(10)) COLLATE 'utf8mb4_bin'; INSERT INTO t1 VALUES ('a'),('a '); SELECT COUNT(*) FROM t1 WHERE a='a'; COUNT(*) 2 SELECT COUNT(*) FROM t1 WHERE a='a' COLLATE 'utf8mb4_bin'; COUNT(*) 2 SELECT COUNT(*) FROM t1 WHERE a='a' COLLATE 'utf8mb4_nopad_bin'; COUNT(*) 1 ALTER TABLE t1 MODIFY a VARCHAR(10) COLLATE 'utf8mb4_nopad_bin'; SELECT COUNT(*) FROM t1 WHERE a='a'; COUNT(*) 1 SELECT COUNT(*) FROM t1 WHERE a='a' COLLATE 'utf8mb4_bin'; COUNT(*) 2 SELECT COUNT(*) FROM t1 WHERE a='a' COLLATE 'utf8mb4_nopad_bin'; COUNT(*) 1 DROP TABLE t1; # # End of ctype_pad.inc # SET DEFAULT_STORAGE_ENGINE=HEAP; # # Start of ctype_pad.inc # # # Unique indexes # CREATE TABLE t1 (a VARCHAR(10) PRIMARY KEY) COLLATE 'utf8mb4_nopad_bin'; SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `a` varchar(10) NOT NULL, PRIMARY KEY (`a`) ) ENGINE=MEMORY DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_nopad_bin INSERT INTO t1 VALUES ('abc'),('abc '),(' a'),(' a '),('a '); SELECT HEX(a), a FROM t1 ORDER BY a; HEX(a) a 2061 a 206120 a 61202020 a 616263 abc 6162632020 abc SELECT HEX(a), a FROM t1 IGNORE INDEX(PRIMARY) ORDER BY a; HEX(a) a 2061 a 206120 a 61202020 a 616263 abc 6162632020 abc SELECT HEX(a), a FROM t1 IGNORE INDEX(PRIMARY) ORDER BY a DESC; HEX(a) a 6162632020 abc 616263 abc 61202020 a 206120 a 2061 a # # UNION # CREATE TABLE t2 (a VARCHAR(10)) COLLATE 'utf8mb4_nopad_bin'; INSERT INTO t2 VALUES ('abc '),('abc '),(' a'),('a '); SELECT HEX(a),a FROM (SELECT * FROM t1 UNION SELECT * FROM t2 ORDER BY a) td; HEX(a) a 2061 a 206120 a 6120 a 61202020 a 616263 abc 61626320 abc 6162632020 abc DROP TABLE t1; DROP TABLE t2; # # DISTINCT, COUNT, MAX # CREATE TABLE t1 (a VARCHAR(10)) COLLATE 'utf8mb4_nopad_bin'; INSERT INTO t1 VALUES ('a'),('a '),(' a'),(' a '),('a '); SELECT HEX(a), a FROM (SELECT DISTINCT a FROM t1 ORDER BY a) td; HEX(a) a 2061 a 206120 a 61 a 612020 a 61202020 a SELECT COUNT(DISTINCT a) FROM t1 ORDER BY a; COUNT(DISTINCT a) 5 SELECT HEX(MAX(a)), MAX(a) FROM t1; HEX(MAX(a)) MAX(a) 61202020 a # # GROUP BY # CREATE TABLE t2 (a VARCHAR(10), b int, c varchar(10)) COLLATE 'utf8mb4_nopad_bin'; INSERT t2 values('ab', 12, 'cd'), ('ab', 2, 'ed'), ('aa', 20, 'er'), ('aa ', 0, 'er '); SELECT HEX(a), cnt FROM (SELECT a, COUNT(a) AS cnt FROM t2 GROUP BY a ORDER BY a) AS td; HEX(a) cnt 6161 1 61612020 1 6162 2 DROP TABLE t2; # # Weights # SELECT HEX(WEIGHT_STRING(a AS CHAR(10))) FROM t1; HEX(WEIGHT_STRING(a AS CHAR(10))) 000061000000000000000000000000000000000000000000000000000000 000061000020000020000000000000000000000000000000000000000000 000020000061000000000000000000000000000000000000000000000000 000020000061000020000000000000000000000000000000000000000000 000061000020000020000020000000000000000000000000000000000000 DROP TABLE t1; # # IF, CASE, LEAST # SELECT IF('abc' COLLATE 'utf8mb4_nopad_bin' = 'abc ', 'pad', 'nopad'); IF('abc' COLLATE 'utf8mb4_nopad_bin' = 'abc ', 'pad', 'nopad') nopad SELECT CASE 'abc' COLLATE 'utf8mb4_nopad_bin' WHEN 'abc ' THEN 'pad' ELSE 'nopad' END; CASE 'abc' COLLATE 'utf8mb4_nopad_bin' WHEN 'abc ' THEN 'pad' ELSE 'nopad' END nopad SELECT CASE WHEN 'abc' COLLATE 'utf8mb4_nopad_bin' = 'abc ' THEN 'pad' ELSE 'nopad' END; CASE WHEN 'abc' COLLATE 'utf8mb4_nopad_bin' = 'abc ' THEN 'pad' ELSE 'nopad' END nopad SELECT HEX(LEAST('abc ' COLLATE 'utf8mb4_nopad_bin', 'abc ')); HEX(LEAST('abc ' COLLATE 'utf8mb4_nopad_bin', 'abc ')) 61626320 SELECT HEX(GREATEST('abc ' COLLATE 'utf8mb4_nopad_bin', 'abc ')); HEX(GREATEST('abc ' COLLATE 'utf8mb4_nopad_bin', 'abc ')) 6162632020 # # Collation mix # CREATE TABLE t1 (a VARCHAR(10)) COLLATE 'utf8mb4_bin'; INSERT INTO t1 VALUES ('a'),('a '); SELECT COUNT(*) FROM t1 WHERE a='a'; COUNT(*) 2 SELECT COUNT(*) FROM t1 WHERE a='a' COLLATE 'utf8mb4_bin'; COUNT(*) 2 SELECT COUNT(*) FROM t1 WHERE a='a' COLLATE 'utf8mb4_nopad_bin'; COUNT(*) 1 ALTER TABLE t1 MODIFY a VARCHAR(10) COLLATE 'utf8mb4_nopad_bin'; SELECT COUNT(*) FROM t1 WHERE a='a'; COUNT(*) 1 SELECT COUNT(*) FROM t1 WHERE a='a' COLLATE 'utf8mb4_bin'; COUNT(*) 2 SELECT COUNT(*) FROM t1 WHERE a='a' COLLATE 'utf8mb4_nopad_bin'; COUNT(*) 1 DROP TABLE t1; # # End of ctype_pad.inc # SET DEFAULT_STORAGE_ENGINE=Default; # # MDEV-10867 PREPARE..EXECUTE is not consistent about non-ASCII characters # SET NAMES utf8mb4; SELECT '😎' AS c; c 😎 SET @src='SELECT ''😎'' AS c'; PREPARE stmt FROM @src; EXECUTE stmt; c 😎 EXECUTE IMMEDIATE @src; c 😎 PREPARE stmt FROM 'SELECT ''😎'' AS c'; EXECUTE stmt; c 😎 EXECUTE IMMEDIATE 'SELECT ''😎'' AS c'; c 😎 # # MDEV-27690 Crash on `CHARACTER SET csname COLLATE DEFAULT` in column definition # CREATE TABLE t1 (a CHAR(10) CHARACTER SET utf8mb4 COLLATE DEFAULT); SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `a` char(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci DROP TABLE t1; SELECT CAST('a' AS CHAR(10) CHARACTER SET utf8mb4 COLLATE DEFAULT); CAST('a' AS CHAR(10) CHARACTER SET utf8mb4 COLLATE DEFAULT) a CREATE TABLE t1 AS SELECT CAST('a' AS CHAR(10) CHARACTER SET utf8mb4 COLLATE DEFAULT) AS c1; SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `c1` varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci DROP TABLE t1; SELECT COLUMN_GET(COLUMN_CREATE(0, 'string'),0 AS CHAR CHARACTER SET utf8mb4 COLLATE DEFAULT) AS c1; c1 string CREATE TABLE t1 AS SELECT COLUMN_GET(COLUMN_CREATE(0, 'string'),0 AS CHAR CHARACTER SET utf8mb4 COLLATE DEFAULT) AS c1; SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `c1` longtext CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci DROP TABLE t1; # # End of 10.2 tests # # # Start of 10.5 tests # # # MDEV-24584 Selecting INT column with COLLATE utf8mb4_general_ci throws an error # SET NAMES utf8mb4; SELECT 1 COLLATE utf8mb4_general_ci; 1 COLLATE utf8mb4_general_ci 1 SELECT 1 COLLATE utf8mb4_bin; 1 COLLATE utf8mb4_bin 1 SELECT 1 COLLATE latin1_swedish_ci; ERROR 42000: COLLATION 'latin1_swedish_ci' is not valid for CHARACTER SET 'utf8mb4' # # End of 10.5 tests # # # Start of 10.6 tests # # # MDEV-27690 Crash on `CHARACTER SET csname COLLATE DEFAULT` in column definition # SELECT * FROM json_table('[{"name":"Jeans"}]', '$[*]' COLUMNS( name VARCHAR(10) CHARACTER SET utf8mb4 COLLATE DEFAULT PATH '$.name' ) ) AS jt; name Jeans CREATE TABLE t1 AS SELECT * FROM json_table('[{"name":"Jeans"}]', '$[*]' COLUMNS( name VARCHAR(10) CHARACTER SET utf8mb4 COLLATE DEFAULT PATH '$.name' ) ) AS jt; SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( `name` varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci DROP TABLE t1; # # End of 10.6 tests #