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https://issues.apache.org/jira/browse/FLINK-16223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Seth Wiesman closed FLINK-16223.
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Resolution: Not A Problem
> Flat aggregate misuses key group ranges
> ---------------------------------------
>
> Key: FLINK-16223
> URL: https://issues.apache.org/jira/browse/FLINK-16223
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Planner
> Affects Versions: 1.10.0, 1.11.0
> Reporter: Seth Wiesman
> Priority: Major
>
> The implementation of flat aggregate appears to misuse key group ranges. When
> we add a check in AbstractStreamOperator that the current key belongs to the
> key group assigned to that subtask, tests in TableAggregateITCase begin to
> fail.
> This patch can be used to reproduce the issue[1].
> https://github.com/sjwiesman/flink/tree/keygrouprangecheck
> cc [~jincheng] [~hequn8128]
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