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  1. Documentation
  2. DOCS-2793

Document that sharded clusters don't support covered queries

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Details

    • Bug
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • v1.3.1
    • manual
    • None
    • 4
    • true

    Description

      Add to limitations of sharded clusters: queries against sharded collections will never be covered.

      (This is because mongod always checks whether it owns the chunk that the document is in before returning it as part of a query, and that process always does fetch of the document from disk)

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              sam.kleinman Sam Kleinman (Inactive)
              rassi J Rassi
              Jonathan Dahl Jonathan Dahl
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              Dates

                Created:
                Updated:
                Resolved:
                8 years, 32 weeks, 3 days ago