From 292a738ed689e342cfdc12efb8e67d7d5ed31ba1 Mon Sep 17 00:00:00 2001 From: Ti Chi Robot Date: Thu, 25 Nov 2021 13:23:51 +0800 Subject: [PATCH] system variables: correct the description of `tidb_allow_fallback_to_tikv` (#6868) (#6943) --- system-variables.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/system-variables.md b/system-variables.md index 4e8cd44a00dec..75be7c44d349c 100644 --- a/system-variables.md +++ b/system-variables.md @@ -383,7 +383,7 @@ mysql> SELECT * FROM t1; - Scope: SESSION | GLOBAL - Default value: "" -- This variable is used to specify a list of storage engines that might fall back to TiKV. If the execution of a SQL statement fails due to a failure of the specified storage engine in the list, TiDB retries executing this SQL statement with TiKV. This variable can be set to "" or "tiflash". When this variable is set to "tiflash", if the execution of a SQL statement fails due to a failure of TiFlash, TiDB retries executing this SQL statement with TiKV. +- This variable is used to specify a list of storage engines that might fall back to TiKV. If the execution of a SQL statement fails due to a failure of the specified storage engine in the list, TiDB retries executing this SQL statement with TiKV. This variable can be set to "" or "tiflash". When this variable is set to "tiflash", if TiFlash returns a timeout error (error code: ErrTiFlashServerTimeout), TiDB retries executing this SQL statement with TiKV. ### tidb_allow_function_for_expression_index New in v5.2.0