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Ashutosh Chauhan commented on HIVE-2340: ---------------------------------------- [~navis] I played with HIVE-2206 over last couple of days and I think your work is complimentary and useful because there are several cases which this patch is already optimizing which HIVE-2206 doesn't currently. For e.g., order-by followed by groupby, RS followed by GBY, JOIN-GROUPBY, RS-RS, GBY-GBY. This covers a lot of ground, so I suggest we move forward with this. > optimize orderby followed by a groupby > -------------------------------------- > > Key: HIVE-2340 > URL: https://issues.apache.org/jira/browse/HIVE-2340 > Project: Hive > Issue Type: Sub-task > Components: Query Processor > Reporter: Navis > Assignee: Navis > Priority: Minor > Labels: perfomance > Attachments: ASF.LICENSE.NOT.GRANTED--HIVE-2340.D1209.1.patch, > ASF.LICENSE.NOT.GRANTED--HIVE-2340.D1209.2.patch, > ASF.LICENSE.NOT.GRANTED--HIVE-2340.D1209.3.patch, > ASF.LICENSE.NOT.GRANTED--HIVE-2340.D1209.4.patch, > ASF.LICENSE.NOT.GRANTED--HIVE-2340.D1209.5.patch, HIVE-2340.1.patch.txt > > > Before implementing optimizer for JOIN-GBY, try to implement RS-GBY > optimizer(cluster-by following group-by). -- 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