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https://issues.apache.org/jira/browse/SPARK-6817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14591984#comment-14591984
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Aleksander Eskilson commented on SPARK-6817:
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It looks like this issue also relates to SPARK-3947. One commenter mentions
expansion of the existing SparkSQL API to support UDAFs for the GroupedData
object as well as DataFrames. Will the scope of this bug also include SparkRs'
GroupedData implementation?
> DataFrame UDFs in R
> -------------------
>
> Key: SPARK-6817
> URL: https://issues.apache.org/jira/browse/SPARK-6817
> Project: Spark
> Issue Type: New Feature
> Components: SparkR, SQL
> Reporter: Shivaram Venkataraman
>
> This depends on some internal interface of Spark SQL, should be done after
> merging into Spark.
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