fix: correct triggers information schema documentation (#3193)

Fixes #3164

### Overview
Corrected the documentation for `information_schema.triggers`.
Previously, the documentation incorrectly displayed the schema for the
`tables` table. This PR updates the `triggers` documentation to reflect
the correct MySQL-compatible schema (showing it as supported but always
empty in Doris).

### Versions 
- [x] dev
- [ ] 4.x
- [x] 3.x
- [x] 2.1

### Languages
- [x] Chinese
- [x] English

### Docs Checklist
- [x] Checked by AI
- [ ] Test Cases Built

Author: Subham-KRLX

docs/admin-manual/system-tables/information_schema/triggers.md

@@ -8,36 +8,36 @@
 
 ## Overview
 
-Stores all table information.
+The `triggers` table provides information about triggers.
+Currently, Apache Doris supports this table for MySQL compatibility, but does not support user-defined triggers. This table is always empty.
 
 ## Database
 
-
 `information_schema`
 
-
 ## Table Information
 
-| Column Name     | Type          | Description                                                  |
-| --------------- | ------------- | ------------------------------------------------------------ |
-| TABLE_CATALOG   | varchar(512)  | The Catalog to which the table belongs                       |
-| TABLE_SCHEMA    | varchar(64)   | The Database to which the table belongs                      |
-| TABLE_NAME      | varchar(64)   | The name of the table                                        |
-| TABLE_TYPE      | varchar(64)   | The type of the table, including: SYSTEM VIEW, VIEW, BASE TABLE |
-| ENGINE          | varchar(64)   | The storage engine type of the table                         |
-| VERSION         | bigint        | Invalid value                                                |
-| ROW_FORMAT      | varchar(10)   | Invalid value                                                |
-| TABLE_ROWS      | bigint        | Estimated number of rows in the table                        |
-| AVG_ROW_LENGTH  | bigint        | Average row size of the table                                |
-| DATA_LENGTH     | bigint        | Estimated size of the table                                  |
-| MAX_DATA_LENGTH | bigint        | Invalid value                                                |
-| INDEX_LENGTH    | bigint        | Invalid value                                                |
-| DATA_FREE       | bigint        | Invalid value                                                |
-| AUTO_INCREMENT  | bigint        | Invalid value                                                |
-| CREATE_TIME     | datetime      | The time when the table was created                          |
-| UPDATE_TIME     | datetime      | The time when the table data was last updated                |
-| CHECK_TIME      | datetime      | Invalid value                                                |
-| TABLE_COLLATION | varchar(32)   | Fixed value: utf-8                                           |
-| CHECKSUM        | bigint        | Invalid value                                                |
-| CREATE_OPTIONS  | varchar(255)  | Invalid value                                                |
-| TABLE_COMMENT   | varchar(2048) | Comments on the table                                        |
+| Column Name | Type | Description |
+|---|---|---|
+| TRIGGER_CATALOG | varchar(512) | The name of the catalog to which the trigger belongs. Always 'def'. |
+| TRIGGER_SCHEMA | varchar(64) | The name of the schema (database) to which the trigger belongs. |
+| TRIGGER_NAME | varchar(64) | The name of the trigger. |
+| EVENT_MANIPULATION | varchar(6) | The trigger event (INSERT, UPDATE, DELETE). |
+| EVENT_OBJECT_CATALOG | varchar(512) | The catalog name of the table with which the trigger is associated. Always 'def'. |
+| EVENT_OBJECT_SCHEMA | varchar(64) | The schema (database) name of the table with which the trigger is associated. |
+| EVENT_OBJECT_TABLE | varchar(64) | The name of the table with which the trigger is associated. |
+| ACTION_ORDER | bigint | The ordinal definition order of the trigger. |
+| ACTION_CONDITION | varchar(512) | null |
+| ACTION_STATEMENT | varchar(512) | The trigger body. |
+| ACTION_ORIENTATION | varchar(9) | Always 'ROW'. |
+| ACTION_TIMING | varchar(6) | Trigger timing (BEFORE, AFTER). |
+| ACTION_REFERENCE_OLD_TABLE | varchar(64) | null |
+| ACTION_REFERENCE_NEW_TABLE | varchar(64) | null |
+| ACTION_REFERENCE_OLD_ROW | varchar(3) | Always 'OLD'. |
+| ACTION_REFERENCE_NEW_ROW | varchar(3) | Always 'NEW'. |
+| CREATED | datetime | The time when the trigger was created. |
+| SQL_MODE | varchar(8192) | The SQL mode in effect when the trigger was created. |
+| DEFINER | varchar(77) | The account that created the trigger. |
+| CHARACTER_SET_CLIENT | varchar(32) | The session value of the character_set_client system variable when the trigger was created. |
+| COLLATION_CONNECTION | varchar(32) | The session value of the collation_connection system variable when the trigger was created. |
+| DATABASE_COLLATION | varchar(32) | The collation of the database with which the trigger is associated. |

i18n/zh-CN/docusaurus-plugin-content-docs/current/admin-manual/system-tables/information_schema/triggers.md

@@ -6,39 +6,38 @@
 }
 ---
 
-## 概述
+## Overview
 
-此表仅用于兼容 MySQL 行为。永远为空。
-
-## 所属数据库
+`triggers` 表提供了关于触发器的信息。
+目前，Apache Doris 支持此表是为了兼容 MySQL，但不支持用户自定义触发器。此表始终为空。
 
+## Database
 
 `information_schema`
 
-
-## 表信息
-
-| 列名                       | 类型          | 说明 |
-| :------------------------- | :------------ | :--- |
-| TRIGGER_CATALOG            | varchar(512)  |      |
-| TRIGGER_SCHEMA             | varchar(64)   |      |
-| TRIGGER_NAME               | varchar(64)   |      |
-| EVENT_MANIPULATION         | varchar(6)    |      |
-| EVENT_OBJECT_CATALOG       | varchar(512)  |      |
-| EVENT_OBJECT_SCHEMA        | varchar(64)   |      |
-| EVENT_OBJECT_TABLE         | varchar(64)   |      |
-| ACTION_ORDER               | varchar(4)    |      |
-| ACTION_CONDITION           | varchar(512)  |      |
-| ACTION_STATEMENT           | varchar(512)  |      |
-| ACTION_ORIENTATION         | varchar(9)    |      |
-| ACTION_TIMING              | varchar(6)    |      |
-| ACTION_REFERENCE_OLD_TABLE | varchar(64)   |      |
-| ACTION_REFERENCE_NEW_TABLE | varchar(64)   |      |
-| ACTION_REFERENCE_OLD_ROW   | varchar(3)    |      |
-| ACTION_REFERENCE_NEW_ROW   | varchar(3)    |      |
-| CREATED                    | datetime      |      |
-| SQL_MODE                   | varchar(8192) |      |
-| DEFINER                    | varchar(77)   |      |
-| CHARACTER_SET_CLIENT       | varchar(32)   |      |
-| COLLATION_CONNECTION       | varchar(32)   |      |
-| DATABASE_COLLATION         | varchar(32)   |      |
+## Table Information
+
+| Column Name | Type | Description |
+|---|---|---|
+| TRIGGER_CATALOG | varchar(512) | 触发器所属的目录名称。始终为 'def'。 |
+| TRIGGER_SCHEMA | varchar(64) | 触发器所属的模式（数据库）名称。 |
+| TRIGGER_NAME | varchar(64) | 触发器名称。 |
+| EVENT_MANIPULATION | varchar(6) | 触发器事件 (INSERT, UPDATE, DELETE)。 |
+| EVENT_OBJECT_CATALOG | varchar(512) | 与触发器关联的表的目录名称。始终为 'def'。 |
+| EVENT_OBJECT_SCHEMA | varchar(64) | 与触发器关联的表的模式（数据库）名称。 |
+| EVENT_OBJECT_TABLE | varchar(64) | 与触发器关联的表的名称。 |
+| ACTION_ORDER | bigint | 触发器的序号定义顺序。 |
+| ACTION_CONDITION | varchar(512) | null |
+| ACTION_STATEMENT | varchar(512) | 触发器主体。 |
+| ACTION_ORIENTATION | varchar(9) | 始终为 'ROW'。 |
+| ACTION_TIMING | varchar(6) | 触发器时机 (BEFORE, AFTER)。 |
+| ACTION_REFERENCE_OLD_TABLE | varchar(64) | null |
+| ACTION_REFERENCE_NEW_TABLE | varchar(64) | null |
+| ACTION_REFERENCE_OLD_ROW | varchar(3) | 始终为 'OLD'。 |
+| ACTION_REFERENCE_NEW_ROW | varchar(3) | 始终为 'NEW'。 |
+| CREATED | datetime | 触发器创建时间。 |
+| SQL_MODE | varchar(8192) | 触发器创建时生效的 SQL 模式。 |
+| DEFINER | varchar(77) | 创建触发器的账户。 |
+| CHARACTER_SET_CLIENT | varchar(32) | 触发器创建时 character_set_client 系统变量的会话值。 |
+| COLLATION_CONNECTION | varchar(32) | 触发器创建时 collation_connection 系统变量的会话值。 |
+| DATABASE_COLLATION | varchar(32) | 与触发器关联的数据库的排序规则。 |

i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/admin-manual/system-tables/information_schema/triggers.md

@@ -6,39 +6,38 @@
 }
 ---
 
-## 概述
+## Overview
 
-此表仅用于兼容 MySQL 行为。永远为空。
-
-## 所属数据库
+`triggers` 表提供了关于触发器的信息。
+目前，Apache Doris 支持此表是为了兼容 MySQL，但不支持用户自定义触发器。此表始终为空。
 
+## Database
 
 `information_schema`
 
-
-## 表信息
-
-| 列名                       | 类型          | 说明 |
-| :------------------------- | :------------ | :--- |
-| TRIGGER_CATALOG            | varchar(512)  |      |
-| TRIGGER_SCHEMA             | varchar(64)   |      |
-| TRIGGER_NAME               | varchar(64)   |      |
-| EVENT_MANIPULATION         | varchar(6)    |      |
-| EVENT_OBJECT_CATALOG       | varchar(512)  |      |
-| EVENT_OBJECT_SCHEMA        | varchar(64)   |      |
-| EVENT_OBJECT_TABLE         | varchar(64)   |      |
-| ACTION_ORDER               | varchar(4)    |      |
-| ACTION_CONDITION           | varchar(512)  |      |
-| ACTION_STATEMENT           | varchar(512)  |      |
-| ACTION_ORIENTATION         | varchar(9)    |      |
-| ACTION_TIMING              | varchar(6)    |      |
-| ACTION_REFERENCE_OLD_TABLE | varchar(64)   |      |
-| ACTION_REFERENCE_NEW_TABLE | varchar(64)   |      |
-| ACTION_REFERENCE_OLD_ROW   | varchar(3)    |      |
-| ACTION_REFERENCE_NEW_ROW   | varchar(3)    |      |
-| CREATED                    | datetime      |      |
-| SQL_MODE                   | varchar(8192) |      |
-| DEFINER                    | varchar(77)   |      |
-| CHARACTER_SET_CLIENT       | varchar(32)   |      |
-| COLLATION_CONNECTION       | varchar(32)   |      |
-| DATABASE_COLLATION         | varchar(32)   |      |
+## Table Information
+
+| Column Name | Type | Description |
+|---|---|---|
+| TRIGGER_CATALOG | varchar(512) | 触发器所属的目录名称。始终为 'def'。 |
+| TRIGGER_SCHEMA | varchar(64) | 触发器所属的模式（数据库）名称。 |
+| TRIGGER_NAME | varchar(64) | 触发器名称。 |
+| EVENT_MANIPULATION | varchar(6) | 触发器事件 (INSERT, UPDATE, DELETE)。 |
+| EVENT_OBJECT_CATALOG | varchar(512) | 与触发器关联的表的目录名称。始终为 'def'。 |
+| EVENT_OBJECT_SCHEMA | varchar(64) | 与触发器关联的表的模式（数据库）名称。 |
+| EVENT_OBJECT_TABLE | varchar(64) | 与触发器关联的表的名称。 |
+| ACTION_ORDER | bigint | 触发器的序号定义顺序。 |
+| ACTION_CONDITION | varchar(512) | null |
+| ACTION_STATEMENT | varchar(512) | 触发器主体。 |
+| ACTION_ORIENTATION | varchar(9) | 始终为 'ROW'。 |
+| ACTION_TIMING | varchar(6) | 触发器时机 (BEFORE, AFTER)。 |
+| ACTION_REFERENCE_OLD_TABLE | varchar(64) | null |
+| ACTION_REFERENCE_NEW_TABLE | varchar(64) | null |
+| ACTION_REFERENCE_OLD_ROW | varchar(3) | 始终为 'OLD'。 |
+| ACTION_REFERENCE_NEW_ROW | varchar(3) | 始终为 'NEW'。 |
+| CREATED | datetime | 触发器创建时间。 |
+| SQL_MODE | varchar(8192) | 触发器创建时生效的 SQL 模式。 |
+| DEFINER | varchar(77) | 创建触发器的账户。 |
+| CHARACTER_SET_CLIENT | varchar(32) | 触发器创建时 character_set_client 系统变量的会话值。 |
+| COLLATION_CONNECTION | varchar(32) | 触发器创建时 collation_connection 系统变量的会话值。 |
+| DATABASE_COLLATION | varchar(32) | 与触发器关联的数据库的排序规则。 |

i18n/zh-CN/docusaurus-plugin-content-docs/version-4.x/admin-manual/system-tables/information_schema/triggers.md

@@ -6,39 +6,38 @@
 }
 ---
 
-## 概述
+## Overview
 
-此表仅用于兼容 MySQL 行为。永远为空。
-
-## 所属数据库
+`triggers` 表提供了关于触发器的信息。
+目前，Apache Doris 支持此表是为了兼容 MySQL，但不支持用户自定义触发器。此表始终为空。
 
+## Database
 
 `information_schema`
 
-
-## 表信息
-
-| 列名                       | 类型          | 说明 |
-| :------------------------- | :------------ | :--- |
-| TRIGGER_CATALOG            | varchar(512)  |      |
-| TRIGGER_SCHEMA             | varchar(64)   |      |
-| TRIGGER_NAME               | varchar(64)   |      |
-| EVENT_MANIPULATION         | varchar(6)    |      |
-| EVENT_OBJECT_CATALOG       | varchar(512)  |      |
-| EVENT_OBJECT_SCHEMA        | varchar(64)   |      |
-| EVENT_OBJECT_TABLE         | varchar(64)   |      |
-| ACTION_ORDER               | varchar(4)    |      |
-| ACTION_CONDITION           | varchar(512)  |      |
-| ACTION_STATEMENT           | varchar(512)  |      |
-| ACTION_ORIENTATION         | varchar(9)    |      |
-| ACTION_TIMING              | varchar(6)    |      |
-| ACTION_REFERENCE_OLD_TABLE | varchar(64)   |      |
-| ACTION_REFERENCE_NEW_TABLE | varchar(64)   |      |
-| ACTION_REFERENCE_OLD_ROW   | varchar(3)    |      |
-| ACTION_REFERENCE_NEW_ROW   | varchar(3)    |      |
-| CREATED                    | datetime      |      |
-| SQL_MODE                   | varchar(8192) |      |
-| DEFINER                    | varchar(77)   |      |
-| CHARACTER_SET_CLIENT       | varchar(32)   |      |
-| COLLATION_CONNECTION       | varchar(32)   |      |
-| DATABASE_COLLATION         | varchar(32)   |      |
+## Table Information
+
+| Column Name | Type | Description |
+|---|---|---|
+| TRIGGER_CATALOG | varchar(512) | 触发器所属的目录名称。始终为 'def'。 |
+| TRIGGER_SCHEMA | varchar(64) | 触发器所属的模式（数据库）名称。 |
+| TRIGGER_NAME | varchar(64) | 触发器名称。 |
+| EVENT_MANIPULATION | varchar(6) | 触发器事件 (INSERT, UPDATE, DELETE)。 |
+| EVENT_OBJECT_CATALOG | varchar(512) | 与触发器关联的表的目录名称。始终为 'def'。 |
+| EVENT_OBJECT_SCHEMA | varchar(64) | 与触发器关联的表的模式（数据库）名称。 |
+| EVENT_OBJECT_TABLE | varchar(64) | 与触发器关联的表的名称。 |
+| ACTION_ORDER | bigint | 触发器的序号定义顺序。 |
+| ACTION_CONDITION | varchar(512) | null |
+| ACTION_STATEMENT | varchar(512) | 触发器主体。 |
+| ACTION_ORIENTATION | varchar(9) | 始终为 'ROW'。 |
+| ACTION_TIMING | varchar(6) | 触发器时机 (BEFORE, AFTER)。 |
+| ACTION_REFERENCE_OLD_TABLE | varchar(64) | null |
+| ACTION_REFERENCE_NEW_TABLE | varchar(64) | null |
+| ACTION_REFERENCE_OLD_ROW | varchar(3) | 始终为 'OLD'。 |
+| ACTION_REFERENCE_NEW_ROW | varchar(3) | 始终为 'NEW'。 |
+| CREATED | datetime | 触发器创建时间。 |
+| SQL_MODE | varchar(8192) | 触发器创建时生效的 SQL 模式。 |
+| DEFINER | varchar(77) | 创建触发器的账户。 |
+| CHARACTER_SET_CLIENT | varchar(32) | 触发器创建时 character_set_client 系统变量的会话值。 |
+| COLLATION_CONNECTION | varchar(32) | 触发器创建时 collation_connection 系统变量的会话值。 |
+| DATABASE_COLLATION | varchar(32) | 与触发器关联的数据库的排序规则。 |

versioned_docs/version-2.1/admin-manual/system-tables/information_schema/triggers.md

@@ -8,36 +8,36 @@
 
 ## Overview
 
-Stores all table information.
+The `triggers` table provides information about triggers.
+Currently, Apache Doris supports this table for MySQL compatibility, but does not support user-defined triggers. This table is always empty.
 
 ## Database
 
-
 `information_schema`
 
-
 ## Table Information
 
-| Column Name     | Type          | Description                                                  |
-| --------------- | ------------- | ------------------------------------------------------------ |
-| TABLE_CATALOG   | varchar(512)  | The Catalog to which the table belongs                       |
-| TABLE_SCHEMA    | varchar(64)   | The Database to which the table belongs                      |
-| TABLE_NAME      | varchar(64)   | The name of the table                                        |
-| TABLE_TYPE      | varchar(64)   | The type of the table, including: SYSTEM VIEW, VIEW, BASE TABLE |
-| ENGINE          | varchar(64)   | The storage engine type of the table                         |
-| VERSION         | bigint        | Invalid value                                                |
-| ROW_FORMAT      | varchar(10)   | Invalid value                                                |
-| TABLE_ROWS      | bigint        | Estimated number of rows in the table                        |
-| AVG_ROW_LENGTH  | bigint        | Average row size of the table                                |
-| DATA_LENGTH     | bigint        | Estimated size of the table                                  |
-| MAX_DATA_LENGTH | bigint        | Invalid value                                                |
-| INDEX_LENGTH    | bigint        | Invalid value                                                |
-| DATA_FREE       | bigint        | Invalid value                                                |
-| AUTO_INCREMENT  | bigint        | Invalid value                                                |
-| CREATE_TIME     | datetime      | The time when the table was created                          |
-| UPDATE_TIME     | datetime      | The time when the table data was last updated                |
-| CHECK_TIME      | datetime      | Invalid value                                                |
-| TABLE_COLLATION | varchar(32)   | Fixed value: utf-8                                           |
-| CHECKSUM        | bigint        | Invalid value                                                |
-| CREATE_OPTIONS  | varchar(255)  | Invalid value                                                |
-| TABLE_COMMENT   | varchar(2048) | Comments on the table                                        |
+| Column Name | Type | Description |
+|---|---|---|
+| TRIGGER_CATALOG | varchar(512) | The name of the catalog to which the trigger belongs. Always 'def'. |
+| TRIGGER_SCHEMA | varchar(64) | The name of the schema (database) to which the trigger belongs. |
+| TRIGGER_NAME | varchar(64) | The name of the trigger. |
+| EVENT_MANIPULATION | varchar(6) | The trigger event (INSERT, UPDATE, DELETE). |
+| EVENT_OBJECT_CATALOG | varchar(512) | The catalog name of the table with which the trigger is associated. Always 'def'. |
+| EVENT_OBJECT_SCHEMA | varchar(64) | The schema (database) name of the table with which the trigger is associated. |
+| EVENT_OBJECT_TABLE | varchar(64) | The name of the table with which the trigger is associated. |
+| ACTION_ORDER | bigint | The ordinal definition order of the trigger. |
+| ACTION_CONDITION | varchar(512) | null |
+| ACTION_STATEMENT | varchar(512) | The trigger body. |
+| ACTION_ORIENTATION | varchar(9) | Always 'ROW'. |
+| ACTION_TIMING | varchar(6) | Trigger timing (BEFORE, AFTER). |
+| ACTION_REFERENCE_OLD_TABLE | varchar(64) | null |
+| ACTION_REFERENCE_NEW_TABLE | varchar(64) | null |
+| ACTION_REFERENCE_OLD_ROW | varchar(3) | Always 'OLD'. |
+| ACTION_REFERENCE_NEW_ROW | varchar(3) | Always 'NEW'. |
+| CREATED | datetime | The time when the trigger was created. |
+| SQL_MODE | varchar(8192) | The SQL mode in effect when the trigger was created. |
+| DEFINER | varchar(77) | The account that created the trigger. |
+| CHARACTER_SET_CLIENT | varchar(32) | The session value of the character_set_client system variable when the trigger was created. |
+| COLLATION_CONNECTION | varchar(32) | The session value of the collation_connection system variable when the trigger was created. |
+| DATABASE_COLLATION | varchar(32) | The collation of the database with which the trigger is associated. |