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update docs related to partition table dynamic mode #6542

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Jul 5, 2021
Merged

update docs related to partition table dynamic mode #6542

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bb07fa7
update dynamic mode
qw4990 Jun 28, 2021
f246e7f
fixup
qw4990 Jun 28, 2021
bd3787d
Update system-variables.md
qw4990 Jun 28, 2021
9c1d9ba
Merge branch 'master' into update-dynamic-mode
qw4990 Jul 5, 2021
412d3b2
resolve conflicts
qw4990 Jul 5, 2021
323bd91
resolve conflicts
qw4990 Jul 5, 2021
83c73bb
add missing anchor
TomShawn Jul 5, 2021
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2 changes: 1 addition & 1 deletion experimental-features.md
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Expand Up @@ -24,7 +24,7 @@ aliases: ['/docs-cn/dev/experimental-features-4.0/','/zh/tidb/dev/experimental-f

+ List 分区表 （List Partition）。（v5.0 实验特性）
+ List Column 分区表 （List Column Partition)。（v5.0 实验特性）
+ [分区表动态模式](/partitioned-table.md#动态模式)。（v5.1 实验特性）
+ [分区表动态裁剪模式](/partitioned-table.md#动态裁剪模式)。（v5.1 实验特性）
+ 表达式索引 (Expression Index) 功能。表达式索引也叫函数索引，在创建索引时索引的字段不一定是一个具体的列，也可以是由一个或者多个列计算出来的表达式。对于快速访问那些基于计算结果的表非常有用。详情参阅：[表达式索引](/sql-statements/sql-statement-create-index.md)。（v4.0 实验特性）
+ [生成列](/generated-columns.md#生成列)。
+ [自定义变量](/user-defined-variables.md#用户自定义变量)。
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2 changes: 1 addition & 1 deletion partitioned-table.md
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Expand Up @@ -1284,7 +1284,7 @@ select * from t;
该变量仅作用于建表，已经建表之后再修改该变量无效。详见[系统变量和语法](/system-variables.md#tidb_enable_list_partition-从-v50-版本开始引入)。
### 动态模式
### 动态裁剪模式
> **警告：**
>
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2 changes: 1 addition & 1 deletion releases/release-5.1.0.md
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Expand Up @@ -184,7 +184,7 @@ TiDB 在遥测中新增收集集群请求的运行状态，包括执行情况、
- 支持枚举类型下推到 TiKV ，提升 WHERE 子句中使用枚举类型时的性能 [#23619](https://github.com/pingcap/tidb/issues/23619)
- 优化 Window Function 计算过程，解决了使用 ROW_NUMBER() 对数据分页时 TiDB OOM 的问题 [#23807](https://github.com/pingcap/tidb/issues/23807)
- 优化 UNION ALL 的计算过程，解决了使用 UNION ALL 连接大量 SELECT 语句时 TiDB OOM 的问题 [#21441](https://github.com/pingcap/tidb/issues/21441)
- 优化分区表动态模式，提升其性能和稳定性 [#24150](https://github.com/pingcap/tidb/issues/24150)
- 优化分区表动态裁剪模式，提升其性能和稳定性 [#24150](https://github.com/pingcap/tidb/issues/24150)
- 解决多种情况下出现的 `Region is Unavailable` 问题 [project#62](https://github.com/pingcap/tidb/projects/62)

- 修复频繁调度情况下可能出现的多个 `Region is Unavailable` 问题
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4 changes: 2 additions & 2 deletions system-variables.md
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Expand Up @@ -1094,11 +1094,11 @@ explain select * from t where age=5;

> **警告：**
>
> 目前分区表动态模式为实验特性，不建议在生产环境中使用。
> 目前分区表动态裁剪模式为实验特性，不建议在生产环境中使用。

- 作用域：SESSION | GLOBAL
- 默认值：static
- 这个变量用来设置是否开启分区表动态模式。关于动态模式的详细说明请参阅[分区表动态模式](/partitioned-table.md#动态模式)。
- 这个变量用来设置是否开启分区表动态裁剪模式。关于动态裁剪模式的详细说明请参阅[分区表动态裁剪模式](/partitioned-table.md#动态裁剪模式)。

### `tidb_pprof_sql_cpu` <span class="version-mark">从 v4.0 版本开始引入</span>

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