MonsterChenzhuo commented on a change in pull request #17789:
URL: https://github.com/apache/flink/pull/17789#discussion_r753661683
##########
File path: docs/data/sql_functions_zh.yml
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@@ -765,10 +764,9 @@ json:
- sql: JSON_STRING(value)
table: jsonString(value)
description: |
- Serializes a value into JSON.
+ 将值序列化为JSON。
- This function returns a JSON string containing the serialized value. If
the value is `NULL`,
- the function returns `NULL`.
+ 这个函数返回一个包含序列化值的JSON字符串。如果值为 `NULL`，函数返回 `NULL`。
Review comment:
```suggestion
此函数返回一个包含序列化值的JSON字符串。如果值为 `NULL`，函数返回 `NULL`。
```
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