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https://issues.apache.org/jira/browse/HIVE-11082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14650586#comment-14650586
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Xuefu Zhang commented on HIVE-11082:
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Merged to master and cherry-picked to branch-1.
> Support multi edge between nodes in SparkPlan[Spark Branch]
> -----------------------------------------------------------
>
> Key: HIVE-11082
> URL: https://issues.apache.org/jira/browse/HIVE-11082
> Project: Hive
> Issue Type: Sub-task
> Components: Spark
> Reporter: Chengxiang Li
> Assignee: Chengxiang Li
> Fix For: spark-branch, 1.3.0, 2.0.0
>
> Attachments: HIVE-11082.1-spark.patch, HIVE-11082.2-spark.patch,
> HIVE-11082.3-spark.patch
>
>
> For Dynamic RDD caching optimization, we found SparkPlan::connect throw
> exception while we try to combine 2 works with same child, support multi edge
> between nodes in SparkPlan would help to enable dynamic RDD caching in more
> use cases, like self join and self union.
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