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  1. Hive
  2. HIVE-17039 Implement optimization rewritings that rely on database SQL constraints
  3. HIVE-17042

Expose NOT NULL constraint in optimizer so constant folding can take advantage of it

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    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 3.0.0
    • None
    • Logical Optimizer
    • None

    Description

      We need to set the type to be not nullable for those columns.

      Among others, it would be useful to simplify IS NOT NULL, NVL, and COALESCE predicates.

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          is duplicated by

          Sub-task - The sub-task of the issue HIVE-17043 Remove non unique columns from group by keys if not referenced later

          • Major - Major loss of function.
          • Closed

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              Unassigned Unassigned
              jcamacho Jesús Camacho Rodríguez
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                Created:
                Updated:
                Resolved: