[jira] [Assigned] (HIVE-8412) Make reduce side join work for all join queries [Spark Branch]

["Brock Noland (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-8412?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Brock Noland reassigned HIVE-8412:
----------------------------------

    Assignee: Xuefu Zhang

> Make reduce side join work for all join queries [Spark Branch]
> --------------------------------------------------------------
>
>                 Key: HIVE-8412
>                 URL: https://issues.apache.org/jira/browse/HIVE-8412
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Spark
>            Reporter: Xuefu Zhang
>            Assignee: Xuefu Zhang
>              Labels: Spark-M2
>             Fix For: spark-branch
>
>         Attachments: HIVE-8412.1-spark.patch
>
>
> Regardless all these join related optimizations such as map join, bucket join, skewed join, etc, reduce side join is the fallback. That means, if a join query wasn't taken care of by any of the optimization, it should work with reduce side join (might in a less optimal fashion).
> It's found that this isn't case at the moment. For instance, auto_sortmerge_join_1.q failed to execute on Spark.



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