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Posted to issues@flink.apache.org by "Fabian Hueske (JIRA)" <ji...@apache.org> on 2018/05/04 10:07:00 UTC

[jira] [Updated] (FLINK-8690) Support distinct aggregation on group windowed streaming tables.

     [ https://issues.apache.org/jira/browse/FLINK-8690?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Fabian Hueske updated FLINK-8690:
---------------------------------
    Summary: Support distinct aggregation on group windowed streaming tables.  (was: Update logical rule set to generate FlinkLogicalAggregate explicitly allow distinct agg on DataStream)

> Support distinct aggregation on group windowed streaming tables.
> ----------------------------------------------------------------
>
>                 Key: FLINK-8690
>                 URL: https://issues.apache.org/jira/browse/FLINK-8690
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Table API &amp; SQL
>            Reporter: Rong Rong
>            Assignee: Rong Rong
>            Priority: Major
>
> Currently, *FlinkLogicalAggregate / FlinkLogicalWindowAggregate* does not allow distinct aggregate.
> We are proposing to reuse distinct aggregate codegen work designed for *FlinkLogicalOverAggregate*, to support unbounded distinct aggregation on datastream as well.



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