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From "Matt McCline (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-12290) Native Vector ReduceSink
Date Fri, 30 Oct 2015 22:47:27 GMT

     [ https://issues.apache.org/jira/browse/HIVE-12290?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Matt McCline updated HIVE-12290:
--------------------------------
    Attachment: HIVE-12290.03.patch

> Native Vector ReduceSink
> ------------------------
>
>                 Key: HIVE-12290
>                 URL: https://issues.apache.org/jira/browse/HIVE-12290
>             Project: Hive
>          Issue Type: Improvement
>          Components: Hive
>            Reporter: Matt McCline
>            Assignee: Matt McCline
>            Priority: Critical
>         Attachments: HIVE-12290.01.patch, HIVE-12290.02.patch, HIVE-12290.03.patch
>
>
> Currently, VectorReduceSinkOperator is a pass-thru to ReduceSinkOperator, so we incur
object inspector costs.
> Native vectorization will not use object inspectors and allocate memory up front that
will be reused for each batch.



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