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https://issues.apache.org/jira/browse/SPARK-35442?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun reassigned SPARK-35442:
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Assignee: XiDuo You
> Support propagate empty relation through aggregate
> --------------------------------------------------
>
> Key: SPARK-35442
> URL: https://issues.apache.org/jira/browse/SPARK-35442
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.2.0
> Reporter: XiDuo You
> Assignee: XiDuo You
> Priority: Minor
> Fix For: 3.3.0
>
>
> The Aggregate in AQE is different with others, the `LogicalQueryStage` looks
> like `LogicalQueryStage(Aggregate, BaseAggregate)`. We should handle this
> case specially.
> Logically, if the Aggregate grouping expression is not empty, we can
> eliminate it safely.
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