[jira] [Created] (FLINK-3475) DISTINCT aggregate function support

[Chengxiang Li (JIRA)]

Chengxiang Li created FLINK-3475:
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             Summary: DISTINCT aggregate function support
                 Key: FLINK-3475
                 URL: https://issues.apache.org/jira/browse/FLINK-3475
             Project: Flink
          Issue Type: Sub-task
          Components: Table API
            Reporter: Chengxiang Li


DISTINCT aggregate function may be able to reuse the aggregate function instead 
of separate implementation, and let Flink runtime take care of duplicate 
records.



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