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Posted to commits@beam.apache.org by "Kenneth Knowles (JIRA)" <ji...@apache.org> on 2018/07/02 21:59:00 UTC

[jira] [Created] (BEAM-4720) Boundedness and Unboundedness as a trait of a Rel so we know during planning

Kenneth Knowles created BEAM-4720:
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             Summary: Boundedness and Unboundedness as a trait of a Rel so we know during planning
                 Key: BEAM-4720
                 URL: https://issues.apache.org/jira/browse/BEAM-4720
             Project: Beam
          Issue Type: New Feature
          Components: dsl-sql
            Reporter: Kenneth Knowles


Currently we do not know the boundedness or unboundedness of a collection until after planning is complete, so it cannot influence the plan. Instead, BeamJoinRel makes post-planning decisions about what sort of join to implement. We should move this into the planning phase. I think Calcite traits are the intended way to do this.



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