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Posted to issues@beam.apache.org by "Kyle Weaver (Jira)" <ji...@apache.org> on 2022/01/13 20:34:00 UTC

[jira] [Created] (BEAM-13658) Support projection pushdown after beginning of pipeline.

Kyle Weaver created BEAM-13658:
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             Summary: Support projection pushdown after beginning of pipeline.
                 Key: BEAM-13658
                 URL: https://issues.apache.org/jira/browse/BEAM-13658
             Project: Beam
          Issue Type: New Feature
          Components: sdk-java-core
            Reporter: Kyle Weaver


The first iteration of projection pushdown will only support pushdown on transforms at the beginning of the pipeline.

This is due to difficulties using PTransformOverrideFactory - it requires getting the transform's input as an argument, and there's currently no way to do this generically.

For more on projection pushdown, see BEAM-12976.



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