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https://issues.apache.org/jira/browse/SPARK-51259?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-51259.
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Fix Version/s: 4.1.0
Resolution: Fixed
Issue resolved by pull request 50009
[https://github.com/apache/spark/pull/50009]
> Refactor and improve performance for natural and using join keys computation
> ----------------------------------------------------------------------------
>
> Key: SPARK-51259
> URL: https://issues.apache.org/jira/browse/SPARK-51259
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 4.0.0
> Reporter: Mihailo Timotic
> Assignee: Mihailo Timotic
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.1.0
>
>
> Refactor natural and using join key computation to a separate component so
> that it can be reused in single-pass resolver. Additionally, improve
> performance of key lookup by using an {{AttributeSet}} instead of linear
> lookups.
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