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  1. Core Server
  2. SERVER-97623

Take into account unique constraint in CE estimation

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    • Type: Icon: Task Task
    • Resolution: Unresolved
    • Priority: Icon: Major - P3 Major - P3
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    • Query Optimization

      If an index has a "unique" constraint, any estimate of a point interval over this index should be 1.0. There is no need to use any CE method. This estimate will be of type "Metadata".

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            Unassigned Unassigned
            Reporter:
            timour.katchaounov@mongodb.com Timour Katchaounov
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              Created:
              Updated: