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Update EBNF for password options #17843

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Jul 3, 2024
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Update EBNF for password options #17843

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qiancai Jul 2, 2024
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qiancai Jul 2, 2024
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Update sql-statement-create-user.md
qiancai Jul 2, 2024
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29 changes: 23 additions & 6 deletions sql-statements/sql-statement-create-user.md
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Original file line number Diff line number Diff line change
Expand Up @@ -21,8 +21,8 @@ UserSpecList ::=
UserSpec ( ',' UserSpec )*

RequireClauseOpt ::=
( 'REQUIRE' 'NONE' | 'REQUIRE' 'SSL' | 'REQUIRE' 'X509' | 'REQUIRE' RequireList )?
( 'REQUIRE' 'NONE' | 'REQUIRE' 'SSL' | 'REQUIRE' 'X509' | 'REQUIRE' RequireList )?

RequireList ::=
( "ISSUER" stringLit | "SUBJECT" stringLit | "CIPHER" stringLit | "SAN" stringLit | "TOKEN_ISSUER" stringLit )*

Expand All @@ -36,13 +36,22 @@ StringName ::=
stringLit
| Identifier

PasswordOption ::= ( 'PASSWORD' 'EXPIRE' ( 'DEFAULT' | 'NEVER' | 'INTERVAL' N 'DAY' )? | 'PASSWORD' 'HISTORY' ( 'DEFAULT' | N ) | 'PASSWORD' 'REUSE' 'INTERVAL' ( 'DEFAULT' | N 'DAY' ) | 'FAILED_LOGIN_ATTEMPTS' N | 'PASSWORD_LOCK_TIME' ( N | 'UNBOUNDED' ) )*
PasswordOption ::= ( 'PASSWORD' 'EXPIRE' ( 'DEFAULT' | 'NEVER' | 'INTERVAL' N 'DAY' )?
| 'PASSWORD' 'HISTORY' ( 'DEFAULT' | N )
| 'PASSWORD' 'REUSE' 'INTERVAL' ( 'DEFAULT' | N 'DAY' )
| 'PASSWORD' 'REQUIRE' 'CURRENT' 'DEFAULT'
| 'FAILED_LOGIN_ATTEMPTS' N
| 'PASSWORD_LOCK_TIME' ( N | 'UNBOUNDED' ) )*

LockOption ::= ( 'ACCOUNT' 'LOCK' | 'ACCOUNT' 'UNLOCK' )?

AttributeOption ::= ( 'COMMENT' CommentString | 'ATTRIBUTE' AttributeString )?

ResourceGroupNameOption::= ( 'RESOURCE' 'GROUP' Identifier)?

RequireClauseOpt ::= ('REQUIRE' ('NONE' | 'SSL' | 'X509' | RequireListElement ('AND'? RequireListElement)*))?

RequireListElement ::= 'ISSUER' Issuer | 'SUBJECT' Subject | 'CIPHER' Cipher | 'SAN' SAN | 'TOKEN_ISSUER' TokenIssuer
```

## 示例
Expand Down Expand Up @@ -177,9 +186,17 @@ SELECT USER, HOST, USER_ATTRIBUTES FROM MYSQL.USER WHERE USER='newuser7';

## MySQL 兼容性

* TiDB 不支持 `WITH MAX_QUERIES_PER_HOUR`、`WITH MAX_UPDATES_PER_HOUR`、`WITH MAX_USER_CONNECTIONS` 等 `CREATE` 选项。
* TiDB 不支持 `DEFAULT ROLE` 选项。
* 对于 TiDB 尚不支持的 `CREATE` 选项。这些选项可被解析，但会被忽略。
TiDB 不支持以下 `CREATE USER` 选项。这些选项可被解析，但会被忽略。

* `PASSWORD REQUIRE CURRENT DEFAULT`
* `WITH MAX_QUERIES_PER_HOUR`
* `WITH MAX_UPDATES_PER_HOUR`
* `WITH MAX_USER_CONNECTIONS`

TiDB 也不支持以下 `CREATE USER` 选项。这些选项无法被语法解析器解析。

* `DEFAULT ROLE`
* `PASSWORD REQUIRE CURRENT OPTIONAL`

## 另请参阅

Expand Down