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  1. Core Server
  2. SERVER-7745

Add option to indexes to create counted b-tree for improved count() performance

    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Won't Fix
    • Affects Version/s: 2.3.0
    • Fix Version/s: None
    • Component/s: Indexing
    • Backwards Compatibility:
      Fully Compatible

      Description

      It would be very useful to allow us to mark an index as counted (uses a counted b-tree rather than the current approach). This would result in larger indexes but would dramatically improve count() performance in most cases.

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