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|
CREATE TABLE t1 (word varchar(64) NOT NULL, PRIMARY KEY (word))
ENGINE=MyISAM CHARACTER SET ucs2 COLLATE ucs2_general_ci;
Warnings:
Warning 1287 'ucs2' is deprecated and will be removed in a future release. Please use utf8mb4 instead
Warning 4079 'ucs2_general_ci' is a collation of the deprecated character set ucs2. Please consider using utf8mb4 with an appropriate collation instead.
INSERT INTO t1 (word) VALUES ("cat");
SELECT * FROM t1 WHERE word LIKE "c%";
word
cat
SELECT * FROM t1 WHERE word LIKE "ca_";
word
cat
SELECT * FROM t1 WHERE word LIKE "cat";
word
cat
SELECT * FROM t1 WHERE word LIKE _ucs2 x'00630025';
word
cat
Warnings:
Warning 1287 'ucs2' is deprecated and will be removed in a future release. Please use utf8mb4 instead
SELECT * FROM t1 WHERE word LIKE _ucs2 x'00630061005F';
word
cat
Warnings:
Warning 1287 'ucs2' is deprecated and will be removed in a future release. Please use utf8mb4 instead
DROP TABLE t1;
SET NAMES latin1;
CREATE TABLE t1 (
word VARCHAR(64),
bar INT(11) default 0,
PRIMARY KEY (word))
ENGINE=MyISAM
CHARSET ucs2
COLLATE ucs2_general_ci ;
Warnings:
Warning 1681 Integer display width is deprecated and will be removed in a future release.
Warning 1287 'ucs2' is deprecated and will be removed in a future release. Please use utf8mb4 instead
Warning 4079 'ucs2_general_ci' is a collation of the deprecated character set ucs2. Please consider using utf8mb4 with an appropriate collation instead.
INSERT INTO t1 (word) VALUES ("aar");
INSERT INTO t1 (word) VALUES ("a");
INSERT INTO t1 (word) VALUES ("aardvar");
INSERT INTO t1 (word) VALUES ("aardvark");
INSERT INTO t1 (word) VALUES ("aardvara");
INSERT INTO t1 (word) VALUES ("aardvarz");
EXPLAIN SELECT * FROM t1 ORDER BY word;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 6 100.00 Using filesort
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`word` AS `word`,`test`.`t1`.`bar` AS `bar` from `test`.`t1` order by `test`.`t1`.`word`
SELECT * FROM t1 ORDER BY word;
word bar
a 0
aar 0
aardvar 0
aardvara 0
aardvark 0
aardvarz 0
EXPLAIN SELECT word FROM t1 ORDER BY word;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL index NULL PRIMARY 130 NULL 6 100.00 Using index
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`word` AS `word` from `test`.`t1` order by `test`.`t1`.`word`
SELECT word FROM t1 ORDER by word;
word
a
aar
aardvar
aardvara
aardvark
aardvarz
DROP TABLE t1;
CREATE TABLE t1 (
word VARCHAR(64) ,
PRIMARY KEY (word))
ENGINE=MyISAM
CHARSET ucs2
COLLATE ucs2_general_ci;
Warnings:
Warning 1287 'ucs2' is deprecated and will be removed in a future release. Please use utf8mb4 instead
Warning 4079 'ucs2_general_ci' is a collation of the deprecated character set ucs2. Please consider using utf8mb4 with an appropriate collation instead.
INSERT INTO t1 (word) VALUES ("aar");
INSERT INTO t1 (word) VALUES ("a");
INSERT INTO t1 (word) VALUES ("aardvar");
INSERT INTO t1 (word) VALUES ("aardvark");
INSERT INTO t1 (word) VALUES ("aardvara");
INSERT INTO t1 (word) VALUES ("aardvarz");
EXPLAIN SELECT * FROM t1 ORDER BY WORD;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL index NULL PRIMARY 130 NULL 6 100.00 Using index
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`word` AS `word` from `test`.`t1` order by `test`.`t1`.`word`
SELECT * FROM t1 ORDER BY word;
word
a
aar
aardvar
aardvara
aardvark
aardvarz
DROP TABLE t1;
CREATE TABLE t1 (
word TEXT,
bar INT(11) AUTO_INCREMENT,
PRIMARY KEY (bar))
ENGINE=MyISAM
CHARSET ucs2
COLLATE ucs2_general_ci ;
Warnings:
Warning 1681 Integer display width is deprecated and will be removed in a future release.
Warning 1287 'ucs2' is deprecated and will be removed in a future release. Please use utf8mb4 instead
Warning 4079 'ucs2_general_ci' is a collation of the deprecated character set ucs2. Please consider using utf8mb4 with an appropriate collation instead.
INSERT INTO t1 (word) VALUES ("aar");
INSERT INTO t1 (word) VALUES ("a" );
INSERT INTO t1 (word) VALUES ("aardvar");
INSERT INTO t1 (word) VALUES ("aardvark");
INSERT INTO t1 (word) VALUES ("aardvara");
INSERT INTO t1 (word) VALUES ("aardvarz");
EXPLAIN SELECT * FROM t1 ORDER BY word;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 6 100.00 Using filesort
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`word` AS `word`,`test`.`t1`.`bar` AS `bar` from `test`.`t1` order by `test`.`t1`.`word`
SELECT * FROM t1 ORDER BY word;
word bar
a 2
aar 1
aardvar 3
aardvara 5
aardvark 4
aardvarz 6
EXPLAIN SELECT word FROM t1 ORDER BY word;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 6 100.00 Using filesort
Warnings:
Note 1003 /* select#1 */ select `test`.`t1`.`word` AS `word` from `test`.`t1` order by `test`.`t1`.`word`
SELECT word FROM t1 ORDER BY word;
word
a
aar
aardvar
aardvara
aardvark
aardvarz
DROP TABLE t1;
CREATE TABLE t1 (
a varchar(255) NOT NULL default '',
KEY a (a)
) ENGINE=MyISAM DEFAULT CHARSET=ucs2 COLLATE ucs2_general_ci;
Warnings:
Warning 1287 'ucs2' is deprecated and will be removed in a future release. Please use utf8mb4 instead
Warning 4079 'ucs2_general_ci' is a collation of the deprecated character set ucs2. Please consider using utf8mb4 with an appropriate collation instead.
insert into t1 values (0x803d);
insert into t1 values (0x005b);
select hex(a) from t1;
hex(a)
005B
803D
drop table t1;
#
# Bug#54916 GROUP_CONCAT + IFNULL truncates output
#
SELECT @@collation_connection;
@@collation_connection
latin1_swedish_ci
CREATE TABLE t1 (a MEDIUMINT NULL) ENGINE=MYISAM;
INSERT INTO t1 VALUES (1234567);
SELECT GROUP_CONCAT(IFNULL(a,'')) FROM t1;
GROUP_CONCAT(IFNULL(a,''))
1234567
SELECT GROUP_CONCAT(IF(a,a,'')) FROM t1;
GROUP_CONCAT(IF(a,a,''))
1234567
SELECT GROUP_CONCAT(CASE WHEN a THEN a ELSE '' END) FROM t1;
GROUP_CONCAT(CASE WHEN a THEN a ELSE '' END)
1234567
SELECT COALESCE(a,'') FROM t1 GROUP BY 1;
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
def COALESCE(a,'') 253 9 7 N 1 31 8
COALESCE(a,'')
1234567
# All columns must be VARCHAR(9) with the same length:
CREATE TABLE t2 AS
SELECT
CONCAT(a),
IFNULL(a,''),
IF(a,a,''),
CASE WHEN a THEN a ELSE '' END,
COALESCE(a,'')
FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`CONCAT(a)` varchar(9) CHARACTER SET latin1 DEFAULT NULL,
`IFNULL(a,'')` varchar(9) CHARACTER SET latin1 NOT NULL DEFAULT '',
`IF(a,a,'')` varchar(9) CHARACTER SET latin1 DEFAULT NULL,
`CASE WHEN a THEN a ELSE '' END` varchar(9) CHARACTER SET latin1 DEFAULT NULL,
`COALESCE(a,'')` varchar(9) CHARACTER SET latin1 NOT NULL DEFAULT ''
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t2;
CREATE TABLE t2 AS SELECT CONCAT_WS(1,2,3) FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`CONCAT_WS(1,2,3)` varchar(6) CHARACTER SET latin1 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t2;
CREATE TABLE t2 AS SELECT INSERT(1133,3,0,22) FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`INSERT(1133,3,0,22)` varchar(8) CHARACTER SET latin1 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t2;
CREATE TABLE t2 AS SELECT LCASE(a) FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`LCASE(a)` varchar(9) CHARACTER SET latin1 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t2;
CREATE TABLE t2 AS SELECT UCASE(a) FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`UCASE(a)` varchar(9) CHARACTER SET latin1 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t2;
CREATE TABLE t2 AS SELECT REPEAT(1,2) FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`REPEAT(1,2)` varchar(4) CHARACTER SET latin1 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t2;
CREATE TABLE t2 AS SELECT LEFT(123,2) FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`LEFT(123,2)` varchar(2) CHARACTER SET latin1 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t2;
CREATE TABLE t2 AS SELECT RIGHT(123,2) FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`RIGHT(123,2)` varchar(2) CHARACTER SET latin1 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t2;
CREATE TABLE t2 AS SELECT LTRIM(123) FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`LTRIM(123)` varchar(4) CHARACTER SET latin1 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t2;
CREATE TABLE t2 AS SELECT RTRIM(123) FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`RTRIM(123)` varchar(4) CHARACTER SET latin1 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t2;
CREATE TABLE t2 AS SELECT ELT(1,111,222,333) FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`ELT(1,111,222,333)` varchar(4) CHARACTER SET latin1 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t2;
CREATE TABLE t2 AS SELECT REPLACE(111,2,3) FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`REPLACE(111,2,3)` varchar(4) CHARACTER SET latin1 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t2;
CREATE TABLE t2 AS SELECT SUBSTRING_INDEX(111,111,1) FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`SUBSTRING_INDEX(111,111,1)` varchar(4) CHARACTER SET latin1 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t2;
CREATE TABLE t2 AS SELECT MAKE_SET(111,222,3) FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`MAKE_SET(111,222,3)` varchar(7) CHARACTER SET latin1 NOT NULL DEFAULT ''
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t2;
CREATE TABLE t2 AS SELECT SOUNDEX(1) FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`SOUNDEX(1)` varchar(4) CHARACTER SET latin1 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t2;
CREATE TABLE t2 AS SELECT EXPORT_SET(1,'ST_Y','N','',8);
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`EXPORT_SET(1,'ST_Y','N','',8)` varchar(256) CHARACTER SET latin1 DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
DROP TABLE t2;
DROP TABLE t1;
#
# End of Bug#54916
#
create table t1 (
a char(10) unicode not null,
index a (a)
) engine=myisam;
Warnings:
Warning 1287 'UNICODE' is deprecated and will be removed in a future release. Please use CHARACTER SET charset_name instead
insert into t1 values (repeat(0x201f, 10));
insert into t1 values (repeat(0x2020, 10));
insert into t1 values (repeat(0x2021, 10));
explain select hex(a) from t1 order by a;
id select_type table partitions type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 NULL index NULL a 20 NULL 3 100.00 Using index
Warnings:
Note 1003 /* select#1 */ select hex(`test`.`t1`.`a`) AS `hex(a)` from `test`.`t1` order by `test`.`t1`.`a`
select hex(a) from t1 order by a;
hex(a)
201F201F201F201F201F201F201F201F201F201F
2020202020202020202020202020202020202020
2021202120212021202120212021202120212021
alter table t1 drop index a;
select hex(a) from t1 order by a;
hex(a)
201F201F201F201F201F201F201F201F201F201F
2020202020202020202020202020202020202020
2021202120212021202120212021202120212021
drop table t1;
CREATE TABLE t1(a TEXT CHARSET ucs2 COLLATE ucs2_unicode_ci) engine=MyISAM;
Warnings:
Warning 1287 'ucs2' is deprecated and will be removed in a future release. Please use utf8mb4 instead
Warning 4079 'ucs2_unicode_ci' is a collation of the deprecated character set ucs2. Please consider using utf8mb4 with an appropriate collation instead.
INSERT INTO t1 VALUES('abcd');
SELECT * FROM t1 WHERE MATCH(a) AGAINST ('+abcd' IN BOOLEAN MODE);
a
abcd
DROP TABLE t1;
|
