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From "Wei Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-11714) Turn off hybrid grace hash join for cross product join
Date Fri, 25 Sep 2015 18:54:06 GMT

     [ https://issues.apache.org/jira/browse/HIVE-11714?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Wei Zheng updated HIVE-11714:
-----------------------------
    Attachment: HIVE-11714.3.patch

Fixed golden file mismatches

> Turn off hybrid grace hash join for cross product join
> ------------------------------------------------------
>
>                 Key: HIVE-11714
>                 URL: https://issues.apache.org/jira/browse/HIVE-11714
>             Project: Hive
>          Issue Type: Bug
>          Components: Hive
>    Affects Versions: 1.2.0
>            Reporter: Wei Zheng
>            Assignee: Wei Zheng
>         Attachments: HIVE-11714.1.patch, HIVE-11714.2.patch, HIVE-11714.3.patch
>
>
> Current partitioning calculation is solely based on hash value of the key. For cross
product join where keys are empty, all the rows will be put into partition 0. This falls back
to the regular mapjoin behavior where we only have one hashtable.



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