How to use Spring Data Mongo distinct method with query and limit












0















Looking at the following code:



mongoOps.getCollection("FooBar")
.distinct("_id", query(where("foo").is("bar")).limit(10).getQueryObject());


I would expect this to return only the first 10 distinct _ids of collection FooBar.
But unfortunately, running this against a Collection having more than 10 documents matching the criteria, it returns all of them ignoring the limit(10) specified here.



_id is an ObjectId.



How can I achieve this?
Is it a bug in Spring Data?



I'm already aware how I can achieve this using an aggregate but I'm trying to simplify the code if possible since using an aggregate takes many more lines of code.



FYI: I'm using Spring Data Mongodb 1.10.10 and unfortunately, updating is currently not an option.










share|improve this question



























    0















    Looking at the following code:



    mongoOps.getCollection("FooBar")
    .distinct("_id", query(where("foo").is("bar")).limit(10).getQueryObject());


    I would expect this to return only the first 10 distinct _ids of collection FooBar.
    But unfortunately, running this against a Collection having more than 10 documents matching the criteria, it returns all of them ignoring the limit(10) specified here.



    _id is an ObjectId.



    How can I achieve this?
    Is it a bug in Spring Data?



    I'm already aware how I can achieve this using an aggregate but I'm trying to simplify the code if possible since using an aggregate takes many more lines of code.



    FYI: I'm using Spring Data Mongodb 1.10.10 and unfortunately, updating is currently not an option.










    share|improve this question

























      0












      0








      0








      Looking at the following code:



      mongoOps.getCollection("FooBar")
      .distinct("_id", query(where("foo").is("bar")).limit(10).getQueryObject());


      I would expect this to return only the first 10 distinct _ids of collection FooBar.
      But unfortunately, running this against a Collection having more than 10 documents matching the criteria, it returns all of them ignoring the limit(10) specified here.



      _id is an ObjectId.



      How can I achieve this?
      Is it a bug in Spring Data?



      I'm already aware how I can achieve this using an aggregate but I'm trying to simplify the code if possible since using an aggregate takes many more lines of code.



      FYI: I'm using Spring Data Mongodb 1.10.10 and unfortunately, updating is currently not an option.










      share|improve this question














      Looking at the following code:



      mongoOps.getCollection("FooBar")
      .distinct("_id", query(where("foo").is("bar")).limit(10).getQueryObject());


      I would expect this to return only the first 10 distinct _ids of collection FooBar.
      But unfortunately, running this against a Collection having more than 10 documents matching the criteria, it returns all of them ignoring the limit(10) specified here.



      _id is an ObjectId.



      How can I achieve this?
      Is it a bug in Spring Data?



      I'm already aware how I can achieve this using an aggregate but I'm trying to simplify the code if possible since using an aggregate takes many more lines of code.



      FYI: I'm using Spring Data Mongodb 1.10.10 and unfortunately, updating is currently not an option.







      java mongodb spring-data






      share|improve this question













      share|improve this question











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      share|improve this question










      asked Nov 28 '18 at 0:21









      Jeep87cJeep87c

      369522




      369522
























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