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Editorial Team
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Asked: 2026-06-02T11:23:36+00:00

Mongo finding items through sub-object { _id : ObjectId(4f93aaddaca610f76b000000), count : NumberLong(2), items :

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Mongo finding items through sub-object

 { "_id" : ObjectId("4f93aaddaca610f76b000000"),
   "count" : NumberLong(2),
   "items" : [
            {"count" : NumberLong(1),
             "options":{ "1":"track","2" : "track" } },

            {"count":NumberLong(2),
             "options":{"1":"as","2" : "sadf" } }
             ]
 }

How to sort the things in the sub-objects like limit the items list per request

result i expect is this

 { "_id" : ObjectId("4f93aaddaca610f76b000000"),
   "count" : NumberLong(2),
   "items" : [
            {"count" : NumberLong(1),
             "options":{ "1":"track","2" : "track" } },
             ]
 }
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1 Answer

  1. Editorial Team

    No, you can’t do that. Querying embedded arrays is pretty limited now. Some day we’ll have virtual collections (SERVER-142) and we’ll be able to do sort , skip, limit and all other usual things. But right now we have these options:

    • Fetch whole subarray and process it in the application;

    • Move items to their own collection (reference instead of embedding);

    • Use Aggregation Framework (not yet released);

    • Give up the idea.

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