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https://issues.apache.org/jira/browse/FLINK-17137?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17195486#comment-17195486
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Benchao Li commented on FLINK-17137:
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[~tartarus] Yes, it is. however, we want to support both local-global
optimization and mini-batch at the same time.
> Support mini batch for WindowOperator in blink planner
> ------------------------------------------------------
>
> Key: FLINK-17137
> URL: https://issues.apache.org/jira/browse/FLINK-17137
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / Planner, Table SQL / Runtime
> Reporter: Benchao Li
> Priority: Major
>
> Currently only regular aggregate and deduplicate support mini batch.
> WindowOperator is a very frequently used operator in Flink, it's very helpful
> to support mini batch for it.
> Design document:
> https://docs.google.com/document/d/1GYlrg8dkYcw5fuq1HptdA3lygXrS_VRbnI8NXoEtZCg/edit?usp=sharing
> cc [~jark]
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