[BEAM-91] Retractions

• Type: New Feature
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: beam-model
• Assignee: Unassigned
• Reporter: Tyler Akidau
• Created: 03/Mar/16 05:12
• Updated: 11/Aug/17 20:34

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.