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https://issues.apache.org/jira/browse/FLINK-32622?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17745118#comment-17745118
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Benchao Li commented on FLINK-32622:
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+1 for this
> Do not add mini-batch assigner operator if it is useless
> --------------------------------------------------------
>
> Key: FLINK-32622
> URL: https://issues.apache.org/jira/browse/FLINK-32622
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / Planner
> Affects Versions: 1.19.0
> Reporter: Fang Yong
> Priority: Major
>
> Currently if user config mini-batch for their sql jobs, flink will always add
> mini-batch assigner operator in job plan even there's no agg/join operators
> in the job. Mini-batch operator will generate useless event and cause
> performance issue for them. If the mini-batch is useless for the specific
> jobs, flink should not add mini-batch assigner even when users turn on
> mini-batch mechanism.
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