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https://issues.apache.org/jira/browse/HIVE-9952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14360829#comment-14360829
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Sergey Shelukhin commented on HIVE-9952:
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+1
> fix NPE in CorrelationUtilities
> -------------------------------
>
> Key: HIVE-9952
> URL: https://issues.apache.org/jira/browse/HIVE-9952
> Project: Hive
> Issue Type: Bug
> Components: Logical Optimizer
> Reporter: Alexander Pivovarov
> Assignee: Alexander Pivovarov
> Priority: Minor
> Attachments: HIVE-9952.1.patch
>
>
> CorrelationUtilities.isNullOperator will throw NPE if operator is null
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