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https://issues.apache.org/jira/browse/SPARK-3947?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yin Huai updated SPARK-3947:
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Issue Type: Sub-task (was: Improvement)
Parent: SPARK-4366
> Support UDAF
> ------------
>
> Key: SPARK-3947
> URL: https://issues.apache.org/jira/browse/SPARK-3947
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Pei-Lun Lee
> Assignee: Yin Huai
>
> Right now only Hive UDAFs are supported. It would be nice to have UDAF
> similar to UDF through SQLContext.registerFunction.
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