[jira] [Updated] (SPARK-35725) Support repartition expand partitions

["XiDuo You (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-35725?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

XiDuo You updated SPARK-35725:
------------------------------
        Parent: SPARK-33828
    Issue Type: Sub-task  (was: Improvement)

> Support repartition expand partitions
> -------------------------------------
>
>                 Key: SPARK-35725
>                 URL: https://issues.apache.org/jira/browse/SPARK-35725
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 3.2.0
>            Reporter: XiDuo You
>            Priority: Major
>
> Currently, we don't support expand partition dynamically in AQE which is not friendly for some data skew job.
> Let's say if we have a simple query:
> {code:java}
> SELECT * FROM table DISTRIBUTE BY col
> {code}
> The column of `col` is skewed, then some shuffle partitions would handle too much data than others.
> If we haven't inroduced extra shuffle, we can optimize this case by expanding partitions in AQE.



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