From 16440948616d5cf1f98eb97c2e57169fbc9ff7f0 Mon Sep 17 00:00:00 2001
From: xixirangrang <hfxsd@hotmail.com>
Date: Fri, 6 Sep 2024 14:33:24 +0800
Subject: [PATCH] tidb: add a note for `cross-join` (#18817)

---
 tidb-configuration-file.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tidb-configuration-file.md b/tidb-configuration-file.md
index 2ee7d3a943670..c1c47cd3874fa 100644
--- a/tidb-configuration-file.md
+++ b/tidb-configuration-file.md
@@ -539,6 +539,10 @@ Configuration items related to performance.
 - Default value: `true`
 - TiDB supports executing the `JOIN` statement without any condition (the `WHERE` field) of both sides tables by default; if you set the value to `false`, the server refuses to execute when such a `JOIN` statement appears.
 
+> **Note:**
+>
+> When creating a cluster, **DO NOT** set `cross-join` to false. Otherwise, the cluster will fail to start up.
+
 ### `stats-lease`
 
 - The time interval of reloading statistics, updating the number of table rows, checking whether it is needed to perform the automatic analysis, using feedback to update statistics and loading statistics of columns.