Mailing-List: contact dev-help@hive.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@hive.apache.org
Date: Fri, 9 Nov 2012 16:36:13 +0000 (UTC)
From: "Mark Grover (JIRA)" <jira@apache.org>
To: hive-dev@hadoop.apache.org
Message-ID: <252887599.92322.1352478973146.JavaMail.jiratomcat@arcas>
In-Reply-To: <1858441244.54333.1351746312641.JavaMail.jiratomcat@arcas>
Subject: [jira] [Commented] (HIVE-3647) map-side groupby wrongly due to
 HIVE-3432
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


    [ https://issues.apache.org/jira/browse/HIVE-3647?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13494100#comment-13494100 ] 

Mark Grover commented on HIVE-3647:
-----------------------------------

More comments!
                
> map-side groupby wrongly due to HIVE-3432
> -----------------------------------------
>
>                 Key: HIVE-3647
>                 URL: https://issues.apache.org/jira/browse/HIVE-3647
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>            Reporter: Namit Jain
>            Assignee: Namit Jain
>         Attachments: hive.3647.1.patch, hive.3647.2.patch, hive.3647.3.patch, hive.3647.4.patch, hive.3647.5.patch, hive.3647.6.patch, hive.3647.7.patch
>
>
> There seems to be a bug due to HIVE-3432.
> We are converting the group by to a map side group by after only looking at
> sorting columns. This can give wrong results if the data is sorted and
> bucketed by different columns.
> Add some tests for that scenario, verify and fix any issues.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira