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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HIVE-12290) Native Vector ReduceSink
Date Sun, 01 Nov 2015 05:18:27 GMT

    [ https://issues.apache.org/jira/browse/HIVE-12290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14984272#comment-14984272
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Lefty Leverenz edited comment on HIVE-12290 at 11/1/15 5:18 AM:
----------------------------------------------------------------

[~mmccline], an extra file snuck into the commit:  HiveConf.java.orig (not in patch 6).


was (Author: lefty@hortonworks.com):
[~mmccline], an extra file snuck into the commit:  hiveconf.java.orig (not in patch 6).

> 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
>              Labels: TODOC2.0
>             Fix For: 2.0.0
>
>         Attachments: HIVE-12290.01.patch, HIVE-12290.02.patch, HIVE-12290.03.patch, HIVE-12290.04.patch,
HIVE-12290.05.patch, HIVE-12290.06.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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