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https://issues.apache.org/jira/browse/SPARK-50228?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Max Gekk resolved SPARK-50228.
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Resolution: Fixed
Issue resolved by pull request 48759
[https://github.com/apache/spark/pull/48759]
> Move the RewriteCollationJoin rule to FinishAnalysis
> ----------------------------------------------------
>
> Key: SPARK-50228
> URL: https://issues.apache.org/jira/browse/SPARK-50228
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 4.0.0
> Reporter: Max Gekk
> Assignee: Max Gekk
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
>
> Such conversions should be NOT considered as an optimization, but it is
> needed for correctness. So, we cannot run the substitutions as an
> optimization rule, it should be applied before any.
> We could modify RewriteCollationJoin and take into account DPP, but we might
> miss something else. Fxing ALL results of optimizations in
> RewriteCollationJoin introduces some dependencies.
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