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  1. Calcite
  2. CALCITE-5392

Support Snapshot in RelMdExpressionLineage

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 1.33.0
    • core

    Description

       For example:

      select productid from products_temporal
      for system_time as of TIMESTAMP '2022-11-19 00:00:00' 
      

      The `productid` expression lineage is null because `RelMdExpressionLineage` does not implement the corresponding method.

       

      We can implement method that for SNAPSHOT like other RelNode.

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              jiajunbernoulli Jiajun Xie
              jiajunbernoulli Jiajun Xie
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