Generate mkobj expressions instead of MkBsonObjStage for PROJECTION_COVERED and PROJECTION_SIMPLE

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    • Type: Improvement
    • Resolution: Won't Do
    • Priority: Major - P3
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    • Affects Version/s: None
    • Component/s: None
    • Query Execution
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      Once SERVER-68970 is complete, the 'generateProjection' will, in a large number of cases, use traverseP + mkobj expressions to evaluate a projection. This method, however, is only called when translating a PROJECTION_DEFAULT.
      This ticket tracks the work to extend the use of mkobj expressions when translating a PROJECTION_SIMPLE and a PROJECTION_COVERED.

      (Also, this task should see whether or not this improves the performance of any workloads that leverage these query solution nodes).

              Assignee:
              [DO NOT USE] Backlog - Query Execution
              Reporter:
              Mihai Andrei
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                Created:
                Updated:
                Resolved: