walterddr commented on a change in pull request #6521: [FLINK-5315][table]
Adding support for distinct operation for table API on DataStream
URL: https://github.com/apache/flink/pull/6521#discussion_r214386228
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File path: docs/dev/table/udfs.md
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@@ -650,6 +650,36 @@ tEnv.sqlQuery("SELECT user, wAvg(points, level) AS
avgPoints FROM userScores GRO
</div>
</div>
+User-defined aggregation function can be used with `distinct` modifiers. To
calculate the aggregate results only for distinct values, simply add the
distinct modifier towards the aggregation function.
Review comment:
Done. yes I agree.
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