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https://issues.apache.org/jira/browse/SPARK-32716?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-32716.
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Resolution: Won't Fix
> Add function mapPartitionsWithInputSplitAndIndex to NewHadoopRDD
> ----------------------------------------------------------------
>
> Key: SPARK-32716
> URL: https://issues.apache.org/jira/browse/SPARK-32716
> Project: Spark
> Issue Type: New Feature
> Components: Spark Core
> Affects Versions: 3.0.0
> Reporter: Patrick Grandjean
> Priority: Major
>
> This is a proposal to add the following function to NewHadoopRDD:
> {code:java}
> def mapPartitionsWithInputSplitAndIndex[U: ClassTag](
> f: (InputSplit, Int, Iterator[(K, V)]) => Iterator[U],
> preservesPartitioning: Boolean = false
> ): RDD[U]
> {code}
> This new function would provide the input split with its partition index.
> Having the partition index may be useful when trying to determine the mapping
> between part-XXXXX files and input splits.
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