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https://issues.apache.org/jira/browse/BEAM-12228?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17369921#comment-17369921
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Beam JIRA Bot commented on BEAM-12228:
--------------------------------------
This issue is P2 but has been unassigned without any comment for 60 days so it
has been labeled "stale-P2". If this issue is still affecting you, we care!
Please comment and remove the label. Otherwise, in 14 days the issue will be
moved to P3.
Please see https://beam.apache.org/contribute/jira-priorities/ for a detailed
explanation of what these priorities mean.
> Composites that return another transforms output are overridden incorrectly
> ---------------------------------------------------------------------------
>
> Key: BEAM-12228
> URL: https://issues.apache.org/jira/browse/BEAM-12228
> Project: Beam
> Issue Type: Bug
> Components: runner-core
> Reporter: Kenneth Knowles
> Priority: P2
> Labels: stale-P2
>
> The TransformHierarchy considers any transform that returns another
> transform's output to be a "composite". A.K.A. not a primitive. A primitive
> produces its own output.
> But a composite that returns its input and _also_ feeds that input to an
> internal transform is rewired incorrectly. Because the output is replaced
> with the original, causing the internal PCollection to be incorrect.
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