How to query an array of objects to match any of the provided values?

Working with Data
13

Yes it will

Now it makes more sense than

So the answer should make more sense too.

Documents in collection

{ "_id" : 0 ,
  "entries" :  [
    { "name" : 2 , "age" : 3 } ,
    { "name" : 4 , "age" : 5 } ,
    { "name" : 6 , "age" : 7 }
  ]
} 

{ "_id" : 1 ,
  "entries" :  [
    { "name" : 2 , "age" : 5 } ,
    { "name" : 4 , "age" : 3 }
  ]
}

The following query will find all documents.

{ "entries.name" : 2 , "entries.age" : 3 }

However this one, will only find _id:0 because it is specified in the query.

{ "_id" : 0 , "entries.name" : 2 , "entries.age" : 3 }

The next one will only find _id:0. It does not find _id:1 because name:2 and age:3 is not both true for the same element.

{ "entries" : { "$elemMatch" : { "name" : 2 , "age" : 3 } }

In all cases, all elements of entries are sent in the result. To restrict the element of entries that are sent you need to use

or

I think both only project the first element that matches. The only way I know to project more element will be to use $filter within an aggregation pipeline.