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https://issues.apache.org/jira/browse/SPARK-16012?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15337669#comment-15337669
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Apache Spark commented on SPARK-16012:
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User 'NarineK' has created a pull request for this issue:
https://github.com/apache/spark/pull/13760
> add gapplyCollect() for SparkDataFrame
> --------------------------------------
>
> Key: SPARK-16012
> URL: https://issues.apache.org/jira/browse/SPARK-16012
> Project: Spark
> Issue Type: Sub-task
> Components: SparkR
> Affects Versions: 1.6.1
> Reporter: Sun Rui
>
> Add a new API method called gapplyCollect() for SparkDataFrame. It does
> gapply on a SparkDataFrame and collect the result back to R. Compared to
> gapply() + collect(), gapplyCollect() offers performance optimization as well
> as programming convenience, as no schema is needed to be provided.
> This is similar to dapplyCollect().
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