Why does the populate query to MongoDB not return the entire array of data?

Question

NoSQL

Node.js application, mongoose library. When querying the database using populate, an incomplete array is returned (the first 26 records, instead of 42) . If you make the same query without populate, everything is fine Data structure in the database:
User.findById(id).populate({ path: "couriers" });

{
"_id":"5baa987cea3ee11f688e5b45",
"chatId":"",
"client":"5baa97ba2e70e016889c7b21",
"remoteId":"6d325910",
"name":"Test",
"pinCode":"1",
"createdAt":"2018-09-25T20:20:12.641Z",
"__v":0
}

What is the problem?

Answer 1

How to populate (join) two collections in Mongoose?