Retractions
Open
beam-model
new feature
P3
- Dominant language
- Java
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Description
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.
Imported from Jira [BEAM-91](https://issues.apache.org/jira/browse/BEAM-91). Original Jira may contain additional context.
Reported by: takidau.
Contributor guide
Research direction
The issue names no files or tests. Start by defining the required retraction behavior for uncombine, reverting DoFn output with DoOvers, sink integration, and source-level retractions; done means those aspects are documented and implemented across Beam.
Written by the indexing model from the issue text.
Assessment
- Domain
- data-engineering, stream-processing
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 20/100