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  1. Core Server
  2. SERVER-38695

Make QuerySolutionNode subclasses for projection fast-paths

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    • Icon: Improvement Improvement
    • Resolution: Fixed
    • Icon: Major - P3 Major - P3
    • 4.1.8
    • None
    • Querying
    • None
    • Fully Compatible
    • Query 2019-01-14, Query 2019-01-28, Query 2019-02-11

    Description

      In SERVER-37831 find projection execution has been separated into three classes: one with the full implementation and two with different fast paths. We should create corresponding QuerySolutionNode subclasses because we want a one-to-one correspondence between PlanStages subclesses and these. Intuitively we want the planner to have direct knowledge of which implementation it is choosing.

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            jacob.evans@mongodb.com Jacob Evans
            jacob.evans@mongodb.com Jacob Evans
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