docs: add current_user() in function (#22496)
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@ -7,7 +7,7 @@ description: This document describes how to query data in TDengine.
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## Syntax
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```sql
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SELECT {DATABASE() | CLIENT_VERSION() | SERVER_VERSION() | SERVER_STATUS() | NOW() | TODAY() | TIMEZONE()}
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SELECT {DATABASE() | CLIENT_VERSION() | SERVER_VERSION() | SERVER_STATUS() | NOW() | TODAY() | TIMEZONE() | CURRENT_USER() | USER() }
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SELECT [DISTINCT] select_list
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from_clause
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@ -300,6 +300,12 @@ SELECT TODAY();
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SELECT TIMEZONE();
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```
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### Obtain Current User
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```sql
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SELECT CURRENT_USER();
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```
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## Regular Expression
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### Syntax
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@ -1275,6 +1275,14 @@ SELECT SERVER_STATUS();
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**Description**: The server status.
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### CURRENT_USER
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```sql
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SELECT CURRENT_USER();
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```
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**Description**: get current user.
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## Geometry Functions
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@ -7,7 +7,7 @@ description: 查询数据的详细语法
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## 查询语法
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```sql
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SELECT {DATABASE() | CLIENT_VERSION() | SERVER_VERSION() | SERVER_STATUS() | NOW() | TODAY() | TIMEZONE()}
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SELECT {DATABASE() | CLIENT_VERSION() | SERVER_VERSION() | SERVER_STATUS() | NOW() | TODAY() | TIMEZONE() | CURRENT_USER() | USER() }
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SELECT [DISTINCT] select_list
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from_clause
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@ -300,6 +300,12 @@ SELECT TODAY();
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SELECT TIMEZONE();
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```
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### 获取当前用户
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```sql
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SELECT CURRENT_USER();
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```
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## 正则表达式过滤
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### 语法
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@ -1266,6 +1266,14 @@ SELECT SERVER_STATUS();
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**说明**:检测服务端是否所有 dnode 都在线,如果是则返回成功,否则返回无法建立连接的错误。
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### CURRENT_USER
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```sql
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SELECT CURRENT_USER();
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```
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**说明**:获取当前用户。
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## Geometry 函数
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