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From "Matt McCline (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-9248) Vectorization : Tez Reduce vertex not getting vectorized when GROUP BY is Hash mode
Date Fri, 05 Jun 2015 07:47:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-9248?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Matt McCline updated HIVE-9248:
-------------------------------
    Attachment: HIVE-9248.05.patch

> Vectorization : Tez Reduce vertex not getting vectorized when GROUP BY is Hash mode
> -----------------------------------------------------------------------------------
>
>                 Key: HIVE-9248
>                 URL: https://issues.apache.org/jira/browse/HIVE-9248
>             Project: Hive
>          Issue Type: Bug
>          Components: Tez, Vectorization
>    Affects Versions: 0.14.0
>            Reporter: Matt McCline
>            Assignee: Matt McCline
>            Priority: Critical
>         Attachments: HIVE-9248.01.patch, HIVE-9248.02.patch, HIVE-9248.03.patch, HIVE-9248.04.patch,
HIVE-9248.05.patch
>
>
> Under Tez and Vectorization, ReduceWork not getting vectorized unless it GROUP BY operator
is MergePartial.  Add valid cases where GROUP BY is Hash (and presumably there are downstream
reducers that will do MergePartial).



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