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https://issues.apache.org/jira/browse/SPARK-29499?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17021560#comment-17021560
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Xingbo Jiang commented on SPARK-29499:
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[~dongjoon] Yes, this is master only, since it's a new API we don't need to
backport.
> Add mapPartitionsWithIndex for RDDBarrier
> -----------------------------------------
>
> Key: SPARK-29499
> URL: https://issues.apache.org/jira/browse/SPARK-29499
> Project: Spark
> Issue Type: Bug
> Components: PySpark, Spark Core
> Affects Versions: 2.4.4
> Reporter: Xianyang Liu
> Assignee: Xianyang Liu
> Priority: Major
> Fix For: 3.0.0
>
>
> There is only one method in `RDDBarrier`. We often use the partition index as
> a label for the current partition. We need to get the index from
> `TaskContext` index in the method of `mapPartitions` which is not convenient.
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