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https://issues.apache.org/jira/browse/SPARK-52060?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-52060.
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Fix Version/s: 4.1.0
Resolution: Fixed
Issue resolved by pull request 50849
[https://github.com/apache/spark/pull/50849]
> Create dedicated OneRowRelationExec node
> ----------------------------------------
>
> Key: SPARK-52060
> URL: https://issues.apache.org/jira/browse/SPARK-52060
> Project: Spark
> Issue Type: Task
> Components: SQL
> Affects Versions: 4.1.0
> Reporter: Richard Chen
> Assignee: Richard Chen
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.1.0
>
>
> creates a new OneRowRelationExec node, which is more or less a copy of the
> RDDScanExec node.
> We want a dedicated node because this helps make it more clear when a one row
> relation, i.e. for patterns like `SELECT version()` is used.
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