Centralize the COLLSCAN direction hinting mechanism

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    • Type: Improvement
    • Resolution: Unresolved
    • Priority: Major - P3
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    • Affects Version/s: None
    • Component/s: None
    • Query Optimization
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      Currently there are three means of forcing the desired direction scattered throughout the codebase:

      • $natural cursor hints - which uses the request object itself to determine the scan direction.
      • $natural query settings hints - which populate PlannerParameters::collscanDirection.
      • PlannerParameters::TraversalPreference - an internal hint used by timeseries to avoid blocking sorts.

              Assignee:
              Unassigned
              Reporter:
              Catalin Sumanaru
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                Created:
                Updated: