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  1. Core Server
  2. SERVER-73619

[CQF] Keep multikeyness info for disabled indexes

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    • Icon: Improvement Improvement
    • Resolution: Fixed
    • Icon: Major - P3 Major - P3
    • 7.1.0-rc0
    • None
    • None
    • Query Optimization
    • Fully Compatible
    • QO 2023-05-15

    Description

      Currently when we hint a given index or a collection scan, we disable all other indexes, including their multikeyness info. We should in theory still be able to make use of the multikeyness info to simplify paths even if we never pick the index.

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            misha.tyulenev@mongodb.com Misha Tyulenev
            svilen.mihaylov@mongodb.com Svilen Mihaylov (Inactive)
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              Updated:
              Resolved: