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From "Yi Zhou (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-5791) [Spark SQL] show poor performance when multiple table do join operation
Date Fri, 06 Mar 2015 04:14:38 GMT

    [ https://issues.apache.org/jira/browse/SPARK-5791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14349929#comment-14349929
] 

Yi Zhou commented on SPARK-5791:
--------------------------------

[~yhuai] Currently all of input tables are ORC file format. We used CDH5.3.0 Spark-1.2 when
testing such query.

> [Spark SQL] show poor performance when multiple table do join operation
> -----------------------------------------------------------------------
>
>                 Key: SPARK-5791
>                 URL: https://issues.apache.org/jira/browse/SPARK-5791
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 1.2.0
>            Reporter: Yi Zhou
>         Attachments: Physcial_Plan_Hive.txt, Physcial_Plan_SparkSQL_Updated.txt, Physical_Plan.txt
>
>
> Spark SQL shows poor performance when multiple tables do join operation



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