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  1. Beam
  2. BEAM-3171

convert a join into lookup

Details

    • New Feature
    • Status: Resolved
    • P2
    • Resolution: Fixed
    • None
    • 2.3.0
    • dsl-sql

    Description

      We use BeamSQL to run streaming jobs mostly, and add a join_as_lookup improvement(internal branch) to cover the streaming-to-batch case(similar as [1]). I could submit a PR as experimental if people are interested.

      The rough solution is, if one source of join node implements BeamSeekableTable and the other is not, then the join node is converted to a fact-lookup operation.

      Ref:
      [1] https://docs.google.com/document/d/1B-XnUwXh64lbswRieckU0BxtygSV58hysqZbpZmk03A/edit?usp=sharing

      xumingming takidau for any comments

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              mingmxu Mingmin Xu
              mingmxu Mingmin Xu
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