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https://issues.apache.org/jira/browse/SPARK-52925?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-52925.
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Fix Version/s: 4.1.0
Resolution: Fixed
Issue resolved by pull request 51619
[https://github.com/apache/spark/pull/51619]
> Return correct error message for anchor self references in rCTEs
> ----------------------------------------------------------------
>
> Key: SPARK-52925
> URL: https://issues.apache.org/jira/browse/SPARK-52925
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 4.1.0
> Reporter: Pavle Martinović
> Assignee: Pavle Martinović
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.1.0
>
>
> Catch case when there is a self reference in the anchor, and return an error
> message that this is an illegal rCTE.
> Currently the cases where rCTEs are self referenced inside the anchor return
> unhelpful messages which happen due to the fact that the recursive CTE isn't
> defined at the time.
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