Explain for 'distinct' and 'count' doesn't work when database doesn't exist.

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    • Type: Bug
    • Resolution: Unresolved
    • Priority: Major - P3
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    • Affects Version/s: None
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    • Query Optimization
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      let unexistentDb = db.getSiblingDB("unexistentDB");

unexistentDb.runCommand({explain:{distinct:"coll"}}); // throws NamespaceNotFound
unexistentDb.runCommand({explain:{count:"coll"}}); // throws NamespaceNotFound

       

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      let unexistentDb = db.getSiblingDB("unexistentDB"); unexistentDb.runCommand({explain:{distinct:"coll"}}); // throws NamespaceNotFound unexistentDb.runCommand({explain:{count:"coll"}}); // throws NamespaceNotFound  
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    • TBD
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      Right now the explain command works for 'find', 'aggregate' and other commands when the database doesn't exist. However, this is not the case for 'distinct' and 'count', which fail with a NamespaceNotFound.

       

      It would also be good to add a test to check this behavior.

              Assignee:
              Unassigned
              Reporter:
              Silvia Surroca
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                Created:
                Updated: