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https://issues.apache.org/jira/browse/HIVE-2506?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Chang updated HIVE-2506:
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Attachment: HIVE-2506.patch.3
Rebase trunk.
> Get ConstantObjectInspectors working in UDAFs
> ---------------------------------------------
>
> Key: HIVE-2506
> URL: https://issues.apache.org/jira/browse/HIVE-2506
> Project: Hive
> Issue Type: Improvement
> Reporter: Jonathan Chang
> Assignee: Jonathan Chang
> Attachments: HIVE-2506.patch, HIVE-2506.patch.2, HIVE-2506.patch.3
>
>
> ConstantObjectInspectors seem to do the right thing for UDFs, but don't work
> yet for UDAFs, in part of the complex getEvaluator path which converts back
> and forth between TypeInfo and ObjectInspectors. We should add an interface
> so that UDAFs can operate entirely on ObjectInspectors and expose
> constantness to these UDAFs.
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