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Posted to dev@hive.apache.org by "Navis (Updated) (JIRA)" <ji...@apache.org> on 2011/12/02 09:35:40 UTC
[jira] [Updated] (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 ]
Navis updated HIVE-2340:
------------------------
Attachment: HIVE-2340.1.patch.txt
> 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
> Priority: Minor
> Attachments: HIVE-2340.1.patch.txt
>
>
> Before implementing optimizer for JOIN-GBY, try to implement RS-GBY optimizer(cluster-by following group-by).
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