wutiangan commented on a change in pull request #3345:
URL: https://github.com/apache/incubator-doris/pull/3345#discussion_r412283557
##########
File path:
docs/documentation/cn/sql-reference/sql-functions/string-functions/right.md
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@@ -24,7 +24,7 @@ under the License.
`VARCHAR right(VARCHAR str)`
-它返回具有指定长度的字符串的右边部分
+它返回具有指定长度的字符串的右边部分, 度的单位为utf8字符
Review comment:
```suggestion
它返回具有指定长度的字符串的右边部分, 长度的单位为utf8字符
```
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