Add support for PaneInfo descriptor in Python SDK
- Dominant language
- Java
- Stars
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- 2d 2h
- Merged PRs (30d)
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Description
The PaneInfo descriptor allows a user to determine which particular triggering emitted a value. This allows the user to differentiate between speculative (early), on-time (at end of window) and late value emissions coming out of a GroupByKey. We should add support for this feature in the Python SDK.
Imported from Jira [BEAM-3759](https://issues.apache.org/jira/browse/BEAM-3759). Original Jira may contain additional context.
Reported by: ccy.
Contributor guide
Research direction
Begin with the Python SDK's GroupByKey and triggering behavior, then consult the linked BEAM-3759 Jira issue for the missing context. Identify the appropriate SDK entry point and tests for exposing PaneInfo, and cover speculative, on-time, and late emissions so completion is demonstrated for each case.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- stream-processing
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100