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  1. Calcite
  2. CALCITE-4159

RexSimplify should simplify more always true OR expressions

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.26.0
    • Component/s: None

      Description

      The following filters for a number are always true

      x > 0 or x <= 0 or x is null
      x < 0 or x >= 0 or x is null
      x < 1 or x > 0 or x is null

      where the 1/0 can be replaced by any number where the first is greater than the second

       

      The following filter for a varchar is always true:

      x LIKE '%' OR x is null

      It would be nice if RexSimplify.simplifyOrTerms handled these cases.

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            • Assignee:
              Unassigned
              Reporter:
              swtalbot Steven Talbot

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