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add warning messages
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Liuxiaozhen12 authored and ti-chi-bot committed Sep 1, 2021
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Expand Up @@ -311,6 +311,10 @@ SET GLOBAL tidb_distsql_scan_concurrency = 10;

### `tidb_enable_cascades_planner`

> **警告:**
>
> 目前 cascades planner 为实验特性,不建议在生产环境中使用。

- 作用域:SESSION | GLOBAL
- 默认值:0
- 这个变量用于控制是否开启 cascades planner。
Expand All @@ -323,6 +327,10 @@ SET GLOBAL tidb_distsql_scan_concurrency = 10;

### `tidb_enable_fast_analyze`

> **警告:**
>
> 目前快速分析功能为实验特性,不建议在生产环境中使用。

- 作用域:SESSION | GLOBAL
- 默认值:0
- 这个变量用来控制是否启用统计信息快速分析功能。默认值 0 表示不开启。
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