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From "Gopal V (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-15588) Vectorization: Defer deallocation of scratch columns in complex VectorExpressions like VectorUDFAdaptor, VectorUDFCoalesce, etc to prevent wrong reuse
Date Fri, 13 Jan 2017 20:54:26 GMT

    [ https://issues.apache.org/jira/browse/HIVE-15588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15822334#comment-15822334
] 

Gopal V commented on HIVE-15588:
--------------------------------

LGTM - +1.

> Vectorization: Defer deallocation of scratch columns in complex VectorExpressions like
VectorUDFAdaptor, VectorUDFCoalesce, etc to prevent wrong reuse
> ------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-15588
>                 URL: https://issues.apache.org/jira/browse/HIVE-15588
>             Project: Hive
>          Issue Type: Bug
>          Components: Hive
>            Reporter: Matt McCline
>            Assignee: Matt McCline
>            Priority: Critical
>         Attachments: HIVE-15588.01.patch, HIVE-15588.02.patch
>
>
> Make sure we don't deallocate a scratch column too quickly and cause result corruption
due to scratch column reuse.



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