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

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    • Type: Bug
    • Resolution: Unresolved
    • Priority: Major - P3
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    • Affects Version/s: None
    • Component/s: None
    • Query Optimization
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    • 3
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      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
              Reporter:
              Philip Stoev
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                Created:
                Updated: