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https://issues.apache.org/jira/browse/SPARK-54799?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-54799.
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Fix Version/s: 4.2.0
Resolution: Fixed
Issue resolved by pull request 53564
[https://github.com/apache/spark/pull/53564]
> Refactor UnpivotCoercion
> ------------------------
>
> Key: SPARK-54799
> URL: https://issues.apache.org/jira/browse/SPARK-54799
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 4.1.0
> Reporter: Mihailo Aleksic
> Assignee: Mihailo Aleksic
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.2.0
>
>
> In this issue I propose to refactor `UnpivotCoercion` to make it reusable in
> the single-pass resolver. In addition to this change, we add timezone to the
> Cast in the rule in place to avoid traversing the tree later in the
> single-pass and thus make it slower.
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