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cf644785e1
Adding a new column in INFORMATION_SCHEMA.COLLATIONS:
PAD_ATTRIBUTE ENUM('PAD SPACE','NO PAD')
and a new column Pad_attribute into SHOW COLLATION.
The new column has been added after SORTLEN but before COMMENT.
This order is compatible with MySQL-8.0 order,
with the exception that MariaDB has an extra last column COMMENT:
MariaDB [test]> desc information_schema.collations;
+--------------------+----------------------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+--------------------+----------------------------+------+-----+---------+-------+
| COLLATION_NAME | varchar(64) | NO | | NULL | |
| CHARACTER_SET_NAME | varchar(32) | YES | | NULL | |
| ID | bigint(11) | YES | | NULL | |
| IS_DEFAULT | varchar(3) | YES | | NULL | |
| IS_COMPILED | varchar(3) | NO | | NULL | |
| SORTLEN | bigint(3) | NO | | NULL | |
| PAD_ATTRIBUTE | enum('PAD SPACE','NO PAD') | NO | | NULL | |
| COMMENT | varchar(80) | NO | | NULL | |
+--------------------+----------------------------+------+-----+---------+-------+
The new Pad_attribute in SHOW COLLATION has been added as the last column.
This is also compatible with MySQL:
MariaDB [test]> show collation like 'utf8mb4_bin';
+-------------+---------+------+---------+----------+---------+---------------+
| Collation | Charset | Id | Default | Compiled | Sortlen | Pad_attribute |
+-------------+---------+------+---------+----------+---------+---------------+
| utf8mb4_bin | utf8mb4 | 46 | | Yes | 1 | PAD SPACE |
+-------------+---------+------+---------+----------+---------+---------------+
41 lines
1.6 KiB
Text
41 lines
1.6 KiB
Text
DROP USER dbdict_test@localhost;
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CREATE USER dbdict_test@localhost;
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connect con,localhost,dbdict_test,,;
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SELECT *
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FROM information_schema.character_sets
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WHERE character_set_name IN ('utf8mb3','latin1','binary')
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ORDER BY character_set_name;
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CHARACTER_SET_NAME DEFAULT_COLLATE_NAME DESCRIPTION MAXLEN
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binary binary Binary pseudo charset 1
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latin1 latin1_swedish_ci cp1252 West European 1
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utf8mb3 utf8mb3_uca1400_ai_ci UTF-8 Unicode 3
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SELECT *
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FROM information_schema.collations
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WHERE character_set_name IN ('utf8mb3','latin1','binary')
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AND (collation_name LIKE CONCAT(character_set_name,'_general_ci')
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OR
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collation_name LIKE CONCAT(character_set_name,'_bin'))
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ORDER BY collation_name;
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COLLATION_NAME CHARACTER_SET_NAME ID IS_DEFAULT IS_COMPILED SORTLEN PAD_ATTRIBUTE COMMENT
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latin1_bin latin1 47 Yes 1 PAD SPACE cp1252 West European
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latin1_general_ci latin1 48 Yes 1 PAD SPACE cp1252 West European
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utf8mb3_bin utf8mb3 83 Yes 1 PAD SPACE UTF-8 Unicode
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utf8mb3_general_ci utf8mb3 33 Yes 1 PAD SPACE UTF-8 Unicode
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SELECT *
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FROM information_schema.collation_character_set_applicability
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WHERE character_set_name IN ('utf8mb3','latin1','binary')
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AND (collation_name LIKE CONCAT(character_set_name,'_general_ci')
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OR
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collation_name LIKE CONCAT(character_set_name,'_bin'))
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ORDER BY collation_name, character_set_name;
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COLLATION_NAME CHARACTER_SET_NAME FULL_COLLATION_NAME ID IS_DEFAULT
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latin1_bin latin1 latin1_bin 47
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latin1_general_ci latin1 latin1_general_ci 48
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utf8mb3_bin utf8mb3 utf8mb3_bin 83
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utf8mb3_general_ci utf8mb3 utf8mb3_general_ci 33
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connection default;
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disconnect con;
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DROP USER dbdict_test@localhost;
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