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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-3432) perform a map-only group by if grouping key matches the sorting properties of the table
Date Mon, 28 Mar 2016 09:06:25 GMT

     [ https://issues.apache.org/jira/browse/HIVE-3432?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lefty Leverenz updated HIVE-3432:
---------------------------------
    Labels:   (was: TODOC10)

> perform a map-only group by if grouping key matches the sorting properties of the table
> ---------------------------------------------------------------------------------------
>
>                 Key: HIVE-3432
>                 URL: https://issues.apache.org/jira/browse/HIVE-3432
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Namit Jain
>            Assignee: Namit Jain
>             Fix For: 0.10.0
>
>         Attachments: hive.3432.1.patch, hive.3432.2.patch, hive.3432.3.patch, hive.3432.4.patch,
hive.3432.5.patch, hive.3432.6.patch, hive.3432.7.patch, hive.3432.8.patch
>
>
> There should be an option to use bucketizedinputformat and use map-only group by. There
would be no need to perform a map-side aggregation.



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