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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2018/07/07 23:12:00 UTC

[jira] [Assigned] (SPARK-24759) No reordering keys for broadcast hash join

     [ https://issues.apache.org/jira/browse/SPARK-24759?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-24759:
------------------------------------

    Assignee: Apache Spark  (was: Xiao Li)

> No reordering keys for broadcast hash join
> ------------------------------------------
>
>                 Key: SPARK-24759
>                 URL: https://issues.apache.org/jira/browse/SPARK-24759
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.4.0
>            Reporter: Xiao Li
>            Assignee: Apache Spark
>            Priority: Major
>
> As the implementation of the broadcast hash join is independent of the input hash partitioning, reordering keys is not necessary. Thus, we solve this issue by simply removing the broadcast hash join from the reordering rule in EnsureRequirements.



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