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https://issues.apache.org/jira/browse/FLINK-22128?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17765504#comment-17765504
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Yunhong Zheng commented on FLINK-22128:
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Hi, [~lzljs3620320] . Does this issue still need to be done? Could you briefly
introduce the background of this issue? If I need to continue doing, I can take
this tickets. Thanks!
> Window aggregation should have unique keys
> ------------------------------------------
>
> Key: FLINK-22128
> URL: https://issues.apache.org/jira/browse/FLINK-22128
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Planner
> Reporter: Jingsong Lee
> Priority: Not a Priority
> Labels: auto-deprioritized-major, auto-deprioritized-minor,
> auto-unassigned
>
> We should add match method in {{FlinkRelMdUniqueKeys for
> StreamPhysicalWindowAggregate}}
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