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From "Gopal V (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-21294) Vectorization: 1-reducer Shuffle can skip the object hash functions
Date Fri, 01 Mar 2019 18:05:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-21294?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16781938#comment-16781938
] 

Gopal V commented on HIVE-21294:
--------------------------------

[~teddy.choi]: I'm running the same tests, will push if they pass for me on Linux (or file
tickets for those failures)

> Vectorization: 1-reducer Shuffle can skip the object hash functions
> -------------------------------------------------------------------
>
>                 Key: HIVE-21294
>                 URL: https://issues.apache.org/jira/browse/HIVE-21294
>             Project: Hive
>          Issue Type: Bug
>          Components: Vectorization
>            Reporter: Gopal V
>            Assignee: Teddy Choi
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HIVE-21294.2.patch, HIVE-21294.3.patch, HIVE-21294.4.patch
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> VectorReduceSinkObjectHashOperator can skip the object hashing entirely if the reducer
count = 1.



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