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From "Gopal V (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-11659) Make Vectorization use the fast StringExpr everywhere
Date Thu, 27 Aug 2015 00:40:46 GMT

    [ https://issues.apache.org/jira/browse/HIVE-11659?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14715820#comment-14715820
] 

Gopal V commented on HIVE-11659:
--------------------------------

[~mmccline]: quick fix for group-by speed.

> Make Vectorization use the fast StringExpr everywhere
> -----------------------------------------------------
>
>                 Key: HIVE-11659
>                 URL: https://issues.apache.org/jira/browse/HIVE-11659
>             Project: Hive
>          Issue Type: Improvement
>          Components: Vectorization
>    Affects Versions: 1.3.0, 2.0.0
>            Reporter: Gopal V
>            Assignee: Gopal V
>              Labels: Performance
>         Attachments: HIVE-11659.1.patch
>
>
> StringExpr::equals() provides a faster path than the simple ::compare() operator.



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