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Update ttl-options.md #1080

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Oct 22, 2021
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Update ttl-options.md #1080

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6 changes: 3 additions & 3 deletions docs-2.0/3.ngql-guide/8.clauses-and-options/ttl-options.md
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Expand Up @@ -10,11 +10,11 @@ TTL（Time To Live）指定属性的存活时间，超时后，该属性就会

- 不能修改带有TTL选项的属性的Schema。

- TTL 和 INDEX 共存问题：
- TTL和INDEX共存问题：

+ 如果已有 INDEX：不能再设置 TTL，即使在没有 INDEX 的属性上设置 TTL 也不行。
+ 如果一个Tag的其中一属性已有INDEX，则不能为其设置TTL，也不能为该Tag的其他属性设置TTL。

+ 如果已有 TTL：可以再添加 INDEX。
+ 如果已有TTL，可以再添加INDEX。

## 属性过期

Expand Down