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Posted to issues@spark.apache.org by "Huaxin Gao (Jira)" <ji...@apache.org> on 2021/12/02 19:37:00 UTC

[jira] [Created] (SPARK-37523) Support optimize skewed partitions in Distribution and Ordering if numPartitions is not specified

Huaxin Gao created SPARK-37523:
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             Summary: 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: 3.3.0
            Reporter: Huaxin Gao


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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