[jira] [Created] (FLINK-5315) Support distinct aggregations in table api

[Kurt Young (JIRA)]

Kurt Young created FLINK-5315:
---------------------------------

             Summary: Support distinct aggregations in table api
                 Key: FLINK-5315
                 URL: https://issues.apache.org/jira/browse/FLINK-5315
             Project: Flink
          Issue Type: New Feature
          Components: Table API & SQL
            Reporter: Kurt Young


Such as 
{code}
t.select("count(distinct a), sum(b)")
{code}
or 
{code}
t.select('a.count.distinct), 'b.sum)
{code}




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