Add I_S.keywords for v7.5

TOC-tidb-cloud.md

@@ -617,6 +617,7 @@
         - [`DDL_JOBS`](/information-schema/information-schema-ddl-jobs.md)
         - [`DEADLOCKS`](/information-schema/information-schema-deadlocks.md)
         - [`ENGINES`](/information-schema/information-schema-engines.md)
+        - [`KEYWORDS`](/information-schema/information-schema-keywords.md)
         - [`KEY_COLUMN_USAGE`](/information-schema/information-schema-key-column-usage.md)
         - [`MEMORY_USAGE`](/information-schema/information-schema-memory-usage.md)
         - [`MEMORY_USAGE_OPS_HISTORY`](/information-schema/information-schema-memory-usage-ops-history.md)

TOC.md

@@ -935,6 +935,7 @@
         - [`INSPECTION_RESULT`](/information-schema/information-schema-inspection-result.md)
         - [`INSPECTION_RULES`](/information-schema/information-schema-inspection-rules.md)
         - [`INSPECTION_SUMMARY`](/information-schema/information-schema-inspection-summary.md)
+        - [`KEYWORDS`](/information-schema/information-schema-keywords.md)
         - [`KEY_COLUMN_USAGE`](/information-schema/information-schema-key-column-usage.md)
         - [`MEMORY_USAGE`](/information-schema/information-schema-memory-usage.md)
         - [`MEMORY_USAGE_OPS_HISTORY`](/information-schema/information-schema-memory-usage-ops-history.md)

develop/dev-guide-choose-driver-or-orm.md

@@ -32,7 +32,7 @@ You can follow the [MySQL documentation](https://dev.mysql.com/doc/connector-j/e
 > **Note:**
 >
 > - There is a [bug](https://bugs.mysql.com/bug.php?id=106252) in the Connector/J 8.0 versions before 8.0.32, which might cause threads to hang when using TiDB versions earlier than v6.3.0. To avoid this issue, it is recommended that you use either MySQL Connector/J 8.0.32 or a later version, or the TiDB JDBC (see the *TiDB-JDBC* tab).
-> - When you are using MySQL Connector/J 8.0 with TiDB v7.5.x, it is recommended to set the TiDB configuration item [`server-version`](https://docs.pingcap.com/tidb/v7.5/tidb-configuration-file#server-version) to `"5.7.25-TiDB-v7.5.x"`. MySQL Connector/J attempts to access the `information_schema.KEYWORDS` table if the TiDB server reports a version of MySQL 8.0.11 or later. However, this table is not present in TiDB v7.5.x.
+> - When you are using MySQL Connector/J 8.0 with TiDB v7.5.2 or earlier versions, it is recommended to set the TiDB configuration item [`server-version`](https://docs.pingcap.com/tidb/v7.5/tidb-configuration-file#server-version) to `"5.7.25-TiDB-v7.5.x"`. MySQL Connector/J attempts to access the [`information_schema.KEYWORDS`](/information-schema/information-schema-keywords.md) table if the TiDB server reports a version of MySQL 8.0.11 or later. However, this table is introduced starting from v7.5.3 and is not present in earlier versions. 
 
 For an example of how to build a complete application, see [Build a simple CRUD app with TiDB and JDBC](/develop/dev-guide-sample-application-java-jdbc.md).
 

information-schema/information-schema-keywords.md

@@ -0,0 +1,48 @@
+---
+title: KEYWORDS
+summary: Learn the `KEYWORDS` INFORMATION_SCHEMA table.
+---
+
+# KEYWORDS
+
+Starting from v7.5.3, TiDB provides the `KEYWORDS` table. You can use this table to get information about [keywords](/keywords.md) in TiDB.
+
+```sql
+USE INFORMATION_SCHEMA;
+DESC keywords;
+```
+
+The output is as follows:
+
+```
++----------+--------------+------+------+---------+-------+
+| Field    | Type         | Null | Key  | Default | Extra |
++----------+--------------+------+------+---------+-------+
+| WORD     | varchar(128) | YES  |      | NULL    |       |
+| RESERVED | int(11)      | YES  |      | NULL    |       |
++----------+--------------+------+------+---------+-------+
+2 rows in set (0.00 sec)
+```
+
+Field description:
+
+- `WORD`: The keyword.
+- `RESERVED`: Whether the keyword is reserved.
+
+The following statement queries the information about `ADD` and `USER` keywords:
+
+```sql
+SELECT * FROM INFORMATION_SCHEMA.KEYWORDS WHERE WORD IN ('ADD','USER');
+```
+
+From the output, you can see that `ADD` is a reserved keyword and `USER` is a non-reserved keyword.
+
+```
++------+----------+
+| WORD | RESERVED |
++------+----------+
+| ADD  |        1 |
+| USER |        0 |
++------+----------+
+2 rows in set (0.00 sec)
+```

information-schema/information-schema.md

@@ -27,6 +27,7 @@ Many `INFORMATION_SCHEMA` tables have a corresponding `SHOW` command. The benefi
 | `FILES`                                                                                 | Not implemented by TiDB. Returns zero rows. |
 | `GLOBAL_STATUS`                                                                         | Not implemented by TiDB. Returns zero rows. |
 | `GLOBAL_VARIABLES`                                                                      | Not implemented by TiDB. Returns zero rows. |
+| [`KEYWORDS`](/information-schema/information-schema-keywords.md)                        | Provides a full list of keywords.                |
 | [`KEY_COLUMN_USAGE`](/information-schema/information-schema-key-column-usage.md)        | Describes the key constraints of the columns, such as the primary key constraint. |
 | `OPTIMIZER_TRACE`                                                                       | Not implemented by TiDB. Returns zero rows. |
 | `PARAMETERS`                                                                            | Not implemented by TiDB. Returns zero rows. |
@@ -69,6 +70,7 @@ Many `INFORMATION_SCHEMA` tables have a corresponding `SHOW` command. The benefi
 | `FILES`                                                                                 | Not implemented by TiDB. Returns zero rows. |
 | `GLOBAL_STATUS`                                                                         | Not implemented by TiDB. Returns zero rows. |
 | `GLOBAL_VARIABLES`                                                                      | Not implemented by TiDB. Returns zero rows. |
+| [`KEYWORDS`](/information-schema/information-schema-keywords.md)                        | Provides a full list of keywords.                |
 | [`KEY_COLUMN_USAGE`](/information-schema/information-schema-key-column-usage.md)        | Describes the key constraints of the columns, such as the primary key constraint. |
 | `OPTIMIZER_TRACE`                                                                       | Not implemented by TiDB. Returns zero rows. |
 | `PARAMETERS`                                                                            | Not implemented by TiDB. Returns zero rows. |

keywords.md

@@ -55,6 +55,8 @@ CREATE TABLE test.select (BEGIN int, END int);
 Query OK, 0 rows affected (0.08 sec)
 ```
 
+Starting from v7.5.3, TiDB provides a full list of keywords in the [`INFORMATION_SCHEMA.KEYWORDS`](/information-schema/information-schema-keywords.md) table.
+
 ## Keyword list
 
 The following list shows the keywords in TiDB. Reserved keywords are marked with `(R)`. Reserved keywords for [Window Functions](/functions-and-operators/window-functions.md) are marked with `(R-Window)`. Special non-reserved keywords that need to be escaped with backticks `` ` `` are marked with `(S)`.