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https://issues.apache.org/jira/browse/SPARK-49839?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chao Sun resolved SPARK-49839.
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Fix Version/s: 4.0.0
Resolution: Fixed
Issue resolved by pull request 48303
[https://github.com/apache/spark/pull/48303]
> SPJ: Skip shuffles if possible for sorts
> ----------------------------------------
>
> Key: SPARK-49839
> URL: https://issues.apache.org/jira/browse/SPARK-49839
> Project: Spark
> Issue Type: New Feature
> Components: SQL
> Affects Versions: 4.0.0
> Reporter: Szehon Ho
> Assignee: Szehon Ho
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
>
> It may be possible to use the same logic as SPJ (for joins), to skip shuffles
> for ORDER BY or other sort operations, if we are sorting on partition columns.
> Today all data is shuffled even if we have all the partition values and can
> return them in sorted order.
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