From 8260fc4e9227e221896d968225124f5394616bba 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 714601972c126..c387eea34726a 100644 --- a/system-variables.md +++ b/system-variables.md @@ -513,9 +513,13 @@ 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 @@ -552,6 +556,10 @@ 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.