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https://issues.apache.org/jira/browse/SPARK-48465?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-48465.
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Fix Version/s: 4.0.0
Resolution: Fixed
Issue resolved by pull request 46814
[https://github.com/apache/spark/pull/46814]
> Avoid no-op empty relation propagation in AQE
> ---------------------------------------------
>
> Key: SPARK-48465
> URL: https://issues.apache.org/jira/browse/SPARK-48465
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 4.0.0
> Reporter: Ziqi Liu
> Assignee: Ziqi Liu
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
>
> We should avoid no-op empty relation propagation in AQE: if we convert an
> empty QueryStageExec to empty relation, it will further wrapped into a new
> query stage and execute -> produce empty result -> empty relation propagation
> again. This issue is currently not exposed because AQE will try to reuse
> shuffle.
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