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Posted to issues@spark.apache.org by "Wenchen Fan (Jira)" <ji...@apache.org> on 2022/05/30 06:40:00 UTC
[jira] [Resolved] (SPARK-37523) Support optimize skewed partitions in Distribution and Ordering if numPartitions is not specified
[ https://issues.apache.org/jira/browse/SPARK-37523?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wenchen Fan resolved SPARK-37523.
---------------------------------
Fix Version/s: 3.4.0
Resolution: Fixed
Issue resolved by pull request 36644
[https://github.com/apache/spark/pull/36644]
> Support optimize skewed partitions in Distribution and Ordering if numPartitions is not specified
> -------------------------------------------------------------------------------------------------
>
> Key: SPARK-37523
> URL: https://issues.apache.org/jira/browse/SPARK-37523
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.2.1, 3.3.0
> Reporter: Huaxin Gao
> Assignee: Huaxin Gao
> Priority: Major
> Fix For: 3.4.0
>
>
> When doing repartition in distribution and sort, if data source requests for a specific number of partitions, we should not optimize repartition. However, if data source does not request for a specific number of partitions, Spark should optimize repartition and split the skewed partitions if necessary.
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