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https://issues.apache.org/jira/browse/HIVE-24977?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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mahesh kumar behera resolved HIVE-24977.
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Resolution: Duplicate
> Query compilation failing with NPE during reduce sink deduplication
> -------------------------------------------------------------------
>
> Key: HIVE-24977
> URL: https://issues.apache.org/jira/browse/HIVE-24977
> Project: Hive
> Issue Type: Bug
> Reporter: mahesh kumar behera
> Assignee: mahesh kumar behera
> Priority: Major
> Attachments: 24977-failing-query.txt
>
>
> During reduce sink deduplication if some columns from the RS can not be
> backtracked to a
> terminal operator then null is returned. Check for null is present for some
> case and its missing in some cases.
>
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