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  1. Core Server
  2. SERVER-13933

compound index with numeric keys only

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    • Type: Icon: Question Question
    • Resolution: Duplicate
    • Priority: Icon: Minor - P4 Minor - P4
    • None
    • Affects Version/s: 2.4.4, 2.6.1
    • Component/s: Index Maintenance
    • None

      Is there a way to create a compound index in mongo with "numeric" keys? I imagine that mongo is sorting the object I pass it numerically after calling the ensureIndex function, which results in a compound key order of 1,2,3 instead of the desired 1,3,2.

      Thank you for any help you can provide

      > db.test.drop();
true
> db.test.ensureIndex({'1' : 1, '3' : 1, '2' : 1});
{
        "createdCollectionAutomatically" : true,
        "numIndexesBefore" : 1,
        "numIndexesAfter" : 2,
        "ok" : 1
}
> db.test.getIndexes();
[
        {
                "v" : 1,
                "key" : {
                        "_id" : 1
                },
                "name" : "_id_",
                "ns" : "test.test"
        },
        {
                "v" : 1,
                "key" : {
                        "1" : 1,
                        "2" : 1,
                        "3" : 1
                },
                "name" : "1_1_2_1_3_1",
                "ns" : "test.test"
        }
]

            Assignee:
            Unassigned Unassigned
            Reporter:
            nefiga Ben Rotz
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              Created:
              Updated:
              Resolved: