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[doc] add prefix index description #1459

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2 changes: 1 addition & 1 deletion docs/table-design/index/prefix-index.md
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Expand Up @@ -52,7 +52,7 @@ Since the KEY definition of a table is unique, a table can only have one type of

## Syntax

There is no specific syntax for defining a prefix index. When creating a table, the first 36 bytes of the table's KEY are automatically taken as the prefix index.
There is no specific syntax for defining a prefix index. When creating a table, the first 36 bytes of the table's KEY are automatically taken as the prefix index. If the prefix index encounters a varchar field, it automatically truncates the first 20 bytes.

## Example Usage

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2 changes: 1 addition & 1 deletion ...zh-CN/docusaurus-plugin-content-docs/current/table-design/index/prefix-index.md
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Expand Up @@ -51,7 +51,7 @@ Apache Doris 的数据存储在类似 SSTable（Sorted String Table）的数据

## 使用语法

前缀索引没有专门的语法去定义，建表时自动取表的 Key 的前 36 字节作为前缀索引。
前缀索引没有专门的语法去定义，建表时自动取表的 Key 的前 36 字节作为前缀索引。如果前缀索引碰见varchar类型的字段，会自动截断前20个字节。
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前缀索引没有专门的语法去定义，建表时自动取表的 Key 的前 36 字节作为前缀索引。如果前缀索引碰见 Varchar 类型的字段，会自动截断前 20 个字节。

  1. 请过大模型，碰见属于口语化表达。
  2. 中英文之间建议 英文首字母大写，中英文、中文与数字之间建议添加空格

以下是大模型优化后结果：
前缀索引无需专门语法定义，在创建表时，系统会自动将表的主键（Key）的前 36 个字节作为前缀索引。若前缀索引涉及 Varchar 类型的字段，则系统会自动截取该字段的前 20 个字节。



## 使用示例
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2 changes: 1 addition & 1 deletion ...N/docusaurus-plugin-content-docs/version-2.0/table-design/index/prefix-index.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -51,7 +51,7 @@ Apache Doris 的数据存储在类似 SSTable（Sorted String Table）的数据

## 使用语法

前缀索引没有专门的语法去定义，建表时自动取表的 Key 的前 36 字节作为前缀索引。
前缀索引没有专门的语法去定义，建表时自动取表的 Key 的前 36 字节作为前缀索引。如果前缀索引碰见varchar类型的字段，会自动截断前20个字节。


## 使用示例
Expand Down
2 changes: 1 addition & 1 deletion ...N/docusaurus-plugin-content-docs/version-2.1/table-design/index/prefix-index.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -51,7 +51,7 @@ Apache Doris 的数据存储在类似 SSTable（Sorted String Table）的数据

## 使用语法

前缀索引没有专门的语法去定义，建表时自动取表的 Key 的前 36 字节作为前缀索引。
前缀索引没有专门的语法去定义，建表时自动取表的 Key 的前 36 字节作为前缀索引。如果前缀索引碰见varchar类型的字段，会自动截断前20个字节。


## 使用示例
Expand Down
2 changes: 1 addition & 1 deletion ...N/docusaurus-plugin-content-docs/version-3.0/table-design/index/prefix-index.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -51,7 +51,7 @@ Apache Doris 的数据存储在类似 SSTable（Sorted String Table）的数据

## 使用语法

前缀索引没有专门的语法去定义，建表时自动取表的 Key 的前 36 字节作为前缀索引。
前缀索引没有专门的语法去定义，建表时自动取表的 Key 的前 36 字节作为前缀索引。如果前缀索引碰见varchar类型的字段，会自动截断前20个字节。


## 使用示例
Expand Down
2 changes: 1 addition & 1 deletion versioned_docs/version-2.0/table-design/index/prefix-index.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -52,7 +52,7 @@ Since the KEY definition of a table is unique, a table can only have one type of

## Syntax

There is no specific syntax for defining a prefix index. When creating a table, the first 36 bytes of the table's KEY are automatically taken as the prefix index.
There is no specific syntax for defining a prefix index. When creating a table, the first 36 bytes of the table's KEY are automatically taken as the prefix index. If the prefix index encounters a varchar field, it automatically truncates the first 20 bytes.

## Example Usage

Expand Down
2 changes: 1 addition & 1 deletion versioned_docs/version-2.1/table-design/index/prefix-index.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -52,7 +52,7 @@ Since the KEY definition of a table is unique, a table can only have one type of

## Syntax

There is no specific syntax for defining a prefix index. When creating a table, the first 36 bytes of the table's KEY are automatically taken as the prefix index.
There is no specific syntax for defining a prefix index. When creating a table, the first 36 bytes of the table's KEY are automatically taken as the prefix index. If the prefix index encounters a varchar field, it automatically truncates the first 20 bytes.

## Example Usage

Expand Down
2 changes: 1 addition & 1 deletion versioned_docs/version-3.0/table-design/index/prefix-index.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -52,7 +52,7 @@ Since the KEY definition of a table is unique, a table can only have one type of

## Syntax

There is no specific syntax for defining a prefix index. When creating a table, the first 36 bytes of the table's KEY are automatically taken as the prefix index.
There is no specific syntax for defining a prefix index. When creating a table, the first 36 bytes of the table's KEY are automatically taken as the prefix index. If the prefix index encounters a varchar field, it automatically truncates the first 20 bytes.

## Example Usage

Expand Down