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dashboard-statement-list.md:add a note to explain the blue bar and yellow line #6872

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4 changes: 4 additions & 0 deletions dashboard/dashboard-statement-list.md
Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,10 @@ aliases: ['/docs-cn/dev/dashboard/dashboard-statement-list/']

SQL 语句分析页面所展示的所有数据都来自于 TiDB Statement 系统表,参见 [Statement Summary Tables](/statement-summary-tables.md) 文档了解该系统表的详细情况。

> **注意:**
>
> 在 SQL 语句分析页面的 **Mean Latency** 列中,蓝色条表示平均耗时。如果某条 SQL 语句的蓝色条上有黄色的线,黄色线的左右两侧分别代表最近一个收集周期内该 SQL 语句耗时的最小值和最大值。

### 修改列表过滤条件

页面顶部可修改显示的时间范围、按执行 SQL 所在数据库进行过滤,或按 SQL 类型进行过滤,如下所示。默认显示最近一个收集周期(默认最近 30 分钟)内的所有 SQL 语句执行情况。
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