From 9533cf3b65ebe2fa93249288bfc7524790fd5d98 Mon Sep 17 00:00:00 2001 From: Xiaozhen Liu Date: Thu, 26 Aug 2021 18:33:10 +0800 Subject: [PATCH] system variables.md: add warning message --- system-variables.md | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/system-variables.md b/system-variables.md index 475db3907540c..02bbbf18121fd 100644 --- a/system-variables.md +++ b/system-variables.md @@ -509,9 +509,13 @@ Constraint checking is always performed in place for pessimistic transactions (d ### tidb_enable_cascades_planner +> **Warning:** +> +> Currently, cascades planner is an experimental feature. It is not recommended that you use it in the production environment. + - Scope: SESSION | GLOBAL - Default value: `OFF` -- This variable is used to control whether to enable the cascades planner, which is currently considered experimental. +- This variable is used to control whether to enable the cascades planner. ### tidb_enable_chunk_rpc New in v4.0 @@ -548,6 +552,10 @@ Constraint checking is always performed in place for pessimistic transactions (d ### tidb_enable_fast_analyze +> **Warning:** +> +> Currently, `Fast Analyze` is an experimental feature. It is not recommended that you use it in the production environment. + - Scope: SESSION | GLOBAL - Default value: `OFF` - This variable is used to set whether to enable the statistics `Fast Analyze` feature.