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Posted to issues@beam.apache.org by "Kenneth Knowles (Jira)" <ji...@apache.org> on 2021/04/26 19:46:00 UTC

[jira] [Updated] (BEAM-12228) Composites that return another transforms output are overridden incorrectly

     [ https://issues.apache.org/jira/browse/BEAM-12228?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kenneth Knowles updated BEAM-12228:
-----------------------------------
    Status: Open  (was: Triage Needed)

> 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
>
> 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 own output 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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