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https://issues.apache.org/jira/browse/BEAM-91?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17138008#comment-17138008
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Luke Cwik commented on BEAM-91:
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1) Not really, there has been zero real progress on this. No one that I know
it's actively working on it as there have not been any dev@ mailing list
discussions. This would likely take a team of people familiar with beam to get
this off the ground.
4) Get together enough interest to start working on this. Without enough buy in
from people who are willing to do the work it won't go anywhere.
5) Add additional stuff to the apis is preferable to breaking users but it
really depends on a case by case basis.
> Retractions
> -----------
>
> Key: BEAM-91
> URL: https://issues.apache.org/jira/browse/BEAM-91
> Project: Beam
> Issue Type: New Feature
> Components: beam-model
> Reporter: Tyler Akidau
> Priority: P2
> Labels: stale-P2
> Original Estimate: 672h
> Remaining Estimate: 672h
>
> We still haven't added retractions to Beam, even though they're a core part
> of the model. We should document all the necessary aspects (uncombine,
> reverting DoFn output with DoOvers, sink integration, source-level
> retractions, etc), and then implement them.
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