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Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2022/06/04 20:01:26 UTC

[GitHub] [beam] damccorm opened a new issue, #20873: Composites that return another transforms output are overridden incorrectly

damccorm opened a new issue, #20873:
URL: https://github.com/apache/beam/issues/20873

   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.
   
   Imported from Jira [BEAM-12228](https://issues.apache.org/jira/browse/BEAM-12228). Original Jira may contain additional context.
   Reported by: kenn.


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