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https://issues.apache.org/jira/browse/HIVE-9744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14343824#comment-14343824
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Jason Dere commented on HIVE-9744:
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+1
> Move common arguments validation and value extraction code to GenericUDF
> ------------------------------------------------------------------------
>
> Key: HIVE-9744
> URL: https://issues.apache.org/jira/browse/HIVE-9744
> Project: Hive
> Issue Type: Improvement
> Components: UDF
> Reporter: Alexander Pivovarov
> Assignee: Alexander Pivovarov
> Priority: Minor
> Attachments: HIVE-9744.1.patch, HIVE-9744.2.patch, HIVE-9744.3.patch,
> HIVE-9744.5.patch
>
>
> most of the UDFs
> - check if arguments are primitive / complex
> - check if arguments are particular type or type_group
> - get converters to read values
> - check if argument is constant
> - extract arguments values
> Probably we should move these common methods to GenericUDF
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