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https://issues.apache.org/jira/browse/FLINK-8690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16457679#comment-16457679
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Rong Rong commented on FLINK-8690:
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Thanks for the suggestion [~fhueske]. I think this is much cleaner than having
2 logical plans since they are suppose to be "logical" LOL.
I created the PR based on your suggestions and it looks pretty darn good
covering all the cases (and potentially it also clears the way to support
distinct group aggregation w/o time window in the future). Please take a look
when you have time :-)
> Update logical rule set to generate FlinkLogicalAggregate explicitly allow
> distinct agg on DataStream
> -----------------------------------------------------------------------------------------------------
>
> Key: FLINK-8690
> URL: https://issues.apache.org/jira/browse/FLINK-8690
> Project: Flink
> Issue Type: Sub-task
> 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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