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change notes for tag match prerequisites #731

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Jul 19, 2021
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change notes for tag match prerequisites #731

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4 changes: 2 additions & 2 deletions docs-2.0/3.ngql-guide/7.general-query-statements/2.match.md
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Expand Up @@ -95,11 +95,11 @@ nebula> SHOW JOB 122;

用户可以在一对括号中使用自定义变量来表示模式中的点。例如`(v)`。

### 匹配Tag
### 匹配 Tag

!!! Note

Tag的索引和属性的索引不同。如果Tag的某个属性有索引，但是Tag本身没有索引，用户无法基于该Tag执行`MATCH`语句。
匹配 Tag 的前提是 Tag 本身有索引或者 Tag 的某个属性有索引，否则，用户无法基于该 Tag 执行 `MATCH` 语句。

用户可以在点的右侧用`:<tag_name>`表示模式中的Tag。

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