diff --git a/mysql-schema.md b/mysql-schema.md index 02d95816d31e5..95be0fc1bc10b 100644 --- a/mysql-schema.md +++ b/mysql-schema.md @@ -69,10 +69,6 @@ Currently, the `help_topic` is NULL. ## TTL related system tables -> **Note:** - -> The TTL related system tables are not available on [TiDB Serverless](https://docs.pingcap.com/tidbcloud/select-cluster-tier#tidb-serverless) clusters. - * `tidb_ttl_table_status`: the previously executed TTL job and ongoing TTL job for all TTL tables * `tidb_ttl_task`: the current ongoing TTL subtasks * `tidb_ttl_job_history`: the execution history of TTL tasks in the last 90 days diff --git a/time-to-live.md b/time-to-live.md index 7316d00582afd..d0ab5106631fe 100644 --- a/time-to-live.md +++ b/time-to-live.md @@ -258,7 +258,6 @@ Currently, the TTL feature has the following limitations: * A table with the TTL attribute does not support being referenced by other tables as the primary table in a foreign key constraint. * It is not guaranteed that all expired data is deleted immediately. The time when expired data is deleted depends on the scheduling interval and scheduling window of the background cleanup job. * For tables that use [clustered indexes](/clustered-indexes.md), if the primary key is neither an integer nor a binary string type, the TTL job cannot be split into multiple tasks. This will cause the TTL job to be executed sequentially on a single TiDB node. If the table contains a large amount of data, the execution of the TTL job might become slow. -* TTL is not available for [TiDB Serverless](https://docs.pingcap.com/tidbcloud/select-cluster-tier#tidb-serverless). ## FAQs