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https://issues.apache.org/jira/browse/SPARK-54075?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun reassigned SPARK-54075:
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Assignee: Mihailo Aleksic
> Make ResolvedCollation evaluable
> --------------------------------
>
> Key: SPARK-54075
> URL: https://issues.apache.org/jira/browse/SPARK-54075
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 4.1.0
> Reporter: Mihailo Aleksic
> Assignee: Mihailo Aleksic
> Priority: Major
> Labels: pull-request-available
>
> In this PR I propose to make ResolvedCollation evaluable. By making
> ResolvedCollation evaluable, it can now pass the canEvaluateWithinJoin check,
> allowing the optimizer to use efficient hash joins for queries with inline
> COLLATE in join conditions (before this change we would fallback to
> BroadcastNestedLoopJoin).
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