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https://issues.apache.org/jira/browse/HIVE-15588?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matt McCline updated HIVE-15588:
--------------------------------
    Status: Patch Available  (was: In Progress)

> 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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