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https://issues.apache.org/jira/browse/HIVE-496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12710975#action_12710975
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Prasad Chakka commented on HIVE-496:
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UDFDateAdd and UDFDateDiff also can throw similar NullPointerExceptions if the
arguments to evaluate() are NULL. Can you verify that all UDFs have a
protection against invalid arguments?
> UDFDate fails on null
> ---------------------
>
> Key: HIVE-496
> URL: https://issues.apache.org/jira/browse/HIVE-496
> Project: Hadoop Hive
> Issue Type: Bug
> Reporter: Zheng Shao
> Assignee: Zheng Shao
> Attachments: HIVE-496.1.patch, HIVE-496.2.patch
>
>
> UDFDate will output null pointer exception if called with null.
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