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https://issues.apache.org/jira/browse/BEAM-7692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17123339#comment-17123339
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SAILOKESH DIVI edited comment on BEAM-7692 at 6/2/20, 4:37 AM:
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This feature will be very helpful to assign index when reading data so that we 
can validate them for statistics


was (Author: saidivi):
This feature will be very helpful to assign index when reading data

> 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, io-java-text
>    Affects Versions: 2.13.0
>            Reporter: SAILOKESH DIVI
>            Priority: P2
>              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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