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https://issues.apache.org/jira/browse/SPARK-28002?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun resolved SPARK-28002.
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Resolution: Fixed
Fix Version/s: 3.0.0
Issue resolved by pull request 24842
[https://github.com/apache/spark/pull/24842]
> Support WITH clause column aliases
> ----------------------------------
>
> Key: SPARK-28002
> URL: https://issues.apache.org/jira/browse/SPARK-28002
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Peter Toth
> Assignee: Peter Toth
> Priority: Major
> Fix For: 3.0.0
>
>
> PostgreSQL supports column aliasing in a CTE so this is valid query:
> {noformat}
> WITH t(x) AS (SELECT 1)
> SELECT * FROM t WHERE x = 1{noformat}
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