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https://issues.apache.org/jira/browse/HIVE-7939?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14119215#comment-14119215
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Chao commented on HIVE-7939:
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Looks like there will be cases where the result will have more than one RDDs.
Need to make {{transform}} work for this case..
> Refactoring GraphTran to make it conform to SparkTran interface. [Spark
> Branch]
> -------------------------------------------------------------------------------
>
> Key: HIVE-7939
> URL: https://issues.apache.org/jira/browse/HIVE-7939
> Project: Hive
> Issue Type: Task
> Components: Spark
> Reporter: Chao
> Assignee: Chao
> Attachments: HIVE-7939.1-spark.patch
>
>
> Currently, {{GraphTran}} uses its own {{execute}} method, which executes the
> operator plan in a DFS fashion, and does something special for union. The
> goal for this JIRA is to do some refactoring and make it conform to the
> {{SparkTran}} interface.
> The initial idea is to use varargs for {{SparkTran::transform}}.
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