[GitHub] hequn8128 commented on a change in pull request #7235: [FLINK-10976] [table] Add support for aggregate to table API

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hequn8128 commented on a change in pull request #7235: [FLINK-10976] [table] Add support for aggregate to table API
URL: https://github.com/apache/flink/pull/7235#discussion_r240877554
 
 

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 File path: docs/dev/table/tableApi.md
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 @@ -1682,6 +1682,36 @@ The `OverWindow` defines a range of rows over which aggregates are computed. `Ov
 
 {% top %}
 
+### Aggregate
+
+Aggregate performs an aggregate operation with an aggregate function. You have to close the
+"aggregate" with a select statement. The output will be flattened if the output type is a
 
 Review comment:
   Add a sentence that can't use an aggregate function in the select statement as it has been checked in the select. 

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