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  1. Core Server
  2. SERVER-99634

Empty arrays can not be estimated: "encountered unimplemented case where index bounds tightness are non-exact"

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    • Type: Icon: Bug Bug
    • Resolution: Unresolved
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: None
    • Component/s: None
    • Query Optimization
    • ALL 

      Enterprise bar> db.foo.find({a:[]});
MongoServerError[HistogramCEFailure]: encountered unimplemented case where index bounds tightness are non-exact: ['a']: [undefined, undefined], [[], []]

      The histogram appears to contain a dedicated field for that specific situation:

            emptyArrayCount: Long('1'),

            Assignee:
            Unassigned Unassigned
            Reporter:
            philip.stoev@mongodb.com Philip Stoev
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              Created:
              Updated: