From 33df35d2b1bc93ee16596ea265c426f0704979c9 Mon Sep 17 00:00:00 2001 From: Yang Keao Date: Thu, 13 Feb 2025 15:53:27 +0800 Subject: [PATCH 1/3] add docs about cluster_id row in mysql.tidb Signed-off-by: Yang Keao --- mysql-schema/mysql-schema.md | 1 + 1 file changed, 1 insertion(+) diff --git a/mysql-schema/mysql-schema.md b/mysql-schema/mysql-schema.md index 3c59bed0f17b7..491ad2198703b 100644 --- a/mysql-schema/mysql-schema.md +++ b/mysql-schema/mysql-schema.md @@ -33,6 +33,7 @@ These system tables contain grant information about user accounts and their priv * `tidb_server_version`: the version information of TiDB when it is initialized. Note that this value is read-only and cannot be modified. * `system_tz`: the system time zone of TiDB. * `new_collation_enabled`: whether TiDB has enabled the [new framework for collations](/character-set-and-collation.md#new-framework-for-collations). Note that this value is read-only and cannot be modified. + * `cluster_id`: the unique identifier of the TiDB cluster. Note that this value is read-only and cannot be modified. ## Server-side help system tables From fe6edfe7c98701585002e30234c4fbc88a8540f0 Mon Sep 17 00:00:00 2001 From: Grace Cai Date: Thu, 16 Apr 2026 10:27:00 +0800 Subject: [PATCH 2/3] Update mysql-schema/mysql-schema.md --- mysql-schema/mysql-schema.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mysql-schema/mysql-schema.md b/mysql-schema/mysql-schema.md index 491ad2198703b..beaa2514ffc20 100644 --- a/mysql-schema/mysql-schema.md +++ b/mysql-schema/mysql-schema.md @@ -33,7 +33,7 @@ These system tables contain grant information about user accounts and their priv * `tidb_server_version`: the version information of TiDB when it is initialized. Note that this value is read-only and cannot be modified. * `system_tz`: the system time zone of TiDB. * `new_collation_enabled`: whether TiDB has enabled the [new framework for collations](/character-set-and-collation.md#new-framework-for-collations). Note that this value is read-only and cannot be modified. - * `cluster_id`: the unique identifier of the TiDB cluster. Note that this value is read-only and cannot be modified. + * `cluster_id` (new in v8.5.6): the unique identifier of the TiDB cluster. Note that this value is read-only and cannot be modified. ## Server-side help system tables From a4389edde38d4d50c899bc13f9ac9d45d616cd0b Mon Sep 17 00:00:00 2001 From: Grace Cai Date: Thu, 16 Apr 2026 10:59:08 +0800 Subject: [PATCH 3/3] Update mysql-schema/mysql-schema.md --- mysql-schema/mysql-schema.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mysql-schema/mysql-schema.md b/mysql-schema/mysql-schema.md index beaa2514ffc20..48fb659c44dff 100644 --- a/mysql-schema/mysql-schema.md +++ b/mysql-schema/mysql-schema.md @@ -33,7 +33,7 @@ These system tables contain grant information about user accounts and their priv * `tidb_server_version`: the version information of TiDB when it is initialized. Note that this value is read-only and cannot be modified. * `system_tz`: the system time zone of TiDB. * `new_collation_enabled`: whether TiDB has enabled the [new framework for collations](/character-set-and-collation.md#new-framework-for-collations). Note that this value is read-only and cannot be modified. - * `cluster_id` (new in v8.5.6): the unique identifier of the TiDB cluster. Note that this value is read-only and cannot be modified. + * `cluster_id` (New in v8.5.6): the unique identifier of the TiDB cluster. Note that this value is read-only and cannot be modified. ## Server-side help system tables