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Posted to issues@spark.apache.org by "Chao Sun (Jira)" <ji...@apache.org> on 2024/12/15 05:17:00 UTC

[jira] [Assigned] (SPARK-49839) SPJ: Skip shuffles if possible for sorts

     [ https://issues.apache.org/jira/browse/SPARK-49839?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chao Sun reassigned SPARK-49839:
--------------------------------

    Assignee: Szehon Ho

> 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
>
> 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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