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Posted to issues@spark.apache.org by "Wan Kun (Jira)" <ji...@apache.org> on 2023/10/19 08:45:00 UTC

[jira] [Updated] (SPARK-45607) Collapse repartitions with project

     [ https://issues.apache.org/jira/browse/SPARK-45607?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wan Kun updated SPARK-45607:
----------------------------
    Summary: Collapse repartitions with project  (was: Collapse repartition with project)

> Collapse repartitions with project
> ----------------------------------
>
>                 Key: SPARK-45607
>                 URL: https://issues.apache.org/jira/browse/SPARK-45607
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 4.0.0
>            Reporter: Wan Kun
>            Priority: Major
>
> We can collapse two repartition operators with a project between them.
> For example:
> df.repartition($"a").select($"a", $"b", $"a" + $"b").repartition($"b")
> is same to
> df.select($"a", $"b", $"a" + $"b").repartition($"b")



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