From 44578440820fe4fc4237104229750784bbd1f918 Mon Sep 17 00:00:00 2001 From: Yang Keao Date: Tue, 22 Apr 2025 16:21:20 +0800 Subject: [PATCH] add tidb usage limitation with stats Signed-off-by: Yang Keao --- information-schema/information-schema-tidb-index-usage.md | 1 + 1 file changed, 1 insertion(+) diff --git a/information-schema/information-schema-tidb-index-usage.md b/information-schema/information-schema-tidb-index-usage.md index 917bb12b9dfd5..8cc84fe5ba815 100644 --- a/information-schema/information-schema-tidb-index-usage.md +++ b/information-schema/information-schema-tidb-index-usage.md @@ -101,6 +101,7 @@ The output is as follows: - The data in the `TIDB_INDEX_USAGE` table might be delayed by up to 5 minutes. - After TiDB restarts, the data in the `TIDB_INDEX_USAGE` table is cleared. +- TiDB records index usage for a table only when the table has valid statistics. ## Read more