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https://issues.apache.org/jira/browse/BEAM-7692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16878864#comment-16878864
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SAILOKESH DIVI commented on BEAM-7692:
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Beam user mail thread
[https://lists.apache.org/thread.html/5c10b7edf982ef63d1d1d70545e3fe2716d00628ff5c2a7854383413@%3Cuser.beam.apache.org%3E]
> Create a transform to assign an index when reading data from built in I/O
> transforms
> ------------------------------------------------------------------------------------
>
> Key: BEAM-7692
> URL: https://issues.apache.org/jira/browse/BEAM-7692
> Project: Beam
> Issue Type: New Feature
> Components: io-ideas
> Affects Versions: 2.13.0
> Reporter: SAILOKESH DIVI
> Priority: Major
> Labels: beam
>
> As a beam user
> when using any of the existing beams I/O transforms
> I would like to add an index to each line read as part of the transform.
>
> As spark has zipWithIndex to assign an index when reading files with the beam
> being abstraction layer for may runners. I would expect this feature should
> be added to beam
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