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https://issues.apache.org/jira/browse/BEAM-2939?focusedWorklogId=234587&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-234587
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ASF GitHub Bot logged work on BEAM-2939:
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Author: ASF GitHub Bot
Created on: 29/Apr/19 15:46
Start Date: 29/Apr/19 15:46
Worklog Time Spent: 10m
Work Description: lukecwik commented on issue #8412: [BEAM-2939] Support
SDF expansion in the Flink runner.
URL: https://github.com/apache/beam/pull/8412#issuecomment-487633174
For 1) we already know whether an SDF is bounded or not in the model
pipeline based upon whether any of its output [PCollections are bounded or
not](https://github.com/apache/beam/blob/2b111c46c5a928e1d47e2b51e26d36ca206f0089/model/pipeline/src/main/proto/beam_runner_api.proto#L348)
and in the Java SDK we explicitly require uses to annotate SDFs with whether
they are unbounded or not using
[@UnboundedPerElement](https://github.com/apache/beam/blob/2b111c46c5a928e1d47e2b51e26d36ca206f0089/sdks/java/core/src/main/java/org/apache/beam/sdk/transforms/DoFn.java#L600).
Should the Python SDK also add an annotation similar to the Java SDK?
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Issue Time Tracking
-------------------
Worklog Id: (was: 234587)
Time Spent: 18.5h (was: 18h 20m)
> Fn API SDF support
> ------------------
>
> Key: BEAM-2939
> URL: https://issues.apache.org/jira/browse/BEAM-2939
> Project: Beam
> Issue Type: Improvement
> Components: beam-model
> Reporter: Henning Rohde
> Assignee: Luke Cwik
> Priority: Major
> Labels: portability, triaged
> Time Spent: 18.5h
> Remaining Estimate: 0h
>
> The Fn API should support streaming SDF. Detailed design TBD.
> Once design is ready, expand subtasks similarly to BEAM-2822.
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