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https://issues.apache.org/jira/browse/FLINK-21881?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17306030#comment-17306030
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gonglinglei commented on FLINK-21881:
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Hello, I'd like to know if anyone is already on it? We have faced performance
issue in our job, and this improvement will help it a lot. If no one on it yet,
we'd like to contribute.
> Support local global optimization for window aggregation
> --------------------------------------------------------
>
> Key: FLINK-21881
> URL: https://issues.apache.org/jira/browse/FLINK-21881
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / Planner
> Reporter: Jark Wu
> Priority: Major
>
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