Improve tie-breaking heuristics observability

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    • Type: Task
    • Resolution: Unresolved
    • Priority: Major - P3
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    • Affects Version/s: None
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    • Query Optimization
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    • 3
    • TBD
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      1. Make sure that the final score after applying additional tie breaking heuristics (SPM-3316, SPM-3182) is displayed as "score" in "allPlansExecution" of explain output.
      2. add a boolean flag to explain when these tie breaker heuristics kick in, a sibling boolean to things like maxIndexedOrSolutionsReached (see SERVER-48625)
      3. Make sure that distinct scan tie breaking score is correctly displayed in the log line id 8027500.

              Assignee:
              Unassigned
              Reporter:
              Alexander Ignatyev
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                Created:
                Updated: