Uploaded image for project: 'Documentation'
  1. Documentation
  2. DOCS-2793

Document that sharded clusters don't support covered queries

    • Type: Icon: Bug Bug
    • Resolution: Done
    • Priority: Icon: Major - P3 Major - P3
    • v1.3.1
    • Affects Version/s: None
    • Component/s: manual
    • Labels:
      None

      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)

            Assignee:
            sam.kleinman Sam Kleinman (Inactive)
            Reporter:
            rassi J Rassi
            Votes:
            0 Vote for this issue
            Watchers:
            2 Start watching this issue

              Created:
              Updated:
              Resolved:
              10 years, 1 week ago