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Posted to issues@hive.apache.org by "zgl (JIRA)" <ji...@apache.org> on 2018/02/03 10:29:02 UTC

[jira] [Assigned] (HIVE-2340) optimize orderby followed by a groupby

     [ https://issues.apache.org/jira/browse/HIVE-2340?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

zgl reassigned HIVE-2340:
-------------------------

    Assignee: zgl  (was: Navis)

> 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: zgl
>            Priority: Minor
>              Labels: perfomance
>             Fix For: 0.11.0
>
>         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, HIVE-2340.12.patch, HIVE-2340.13.patch, HIVE-2340.14.patch, HIVE-2340.14.rebased_and_schema_clone.patch, HIVE-2340.15.patch, HIVE-2340.D1209.10.patch, HIVE-2340.D1209.11.patch, HIVE-2340.D1209.12.patch, HIVE-2340.D1209.13.patch, HIVE-2340.D1209.14.patch, HIVE-2340.D1209.15.patch, HIVE-2340.D1209.6.patch, HIVE-2340.D1209.7.patch, HIVE-2340.D1209.8.patch, HIVE-2340.D1209.9.patch, testclidriver.txt
>
>
> Before implementing optimizer for JOIN-GBY, try to implement RS-GBY optimizer(cluster-by following group-by).



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