[Proposal] Return nested field directly in alias

[shinneider]

Hello, i have a new proposal, allow to return a value of nested field in an alias

it`s a very good if you have a lot of nested fields and a client only need a field inside.
example:

Data:

{
   "id": 1,
   "nested_one": {
     "id": 1,
     "nested_two": {
         "id": 1
      }
   }
}

Today: query={nested1: nested_one{id, nested2: nested_two{id}}} return

{
  "nested1": {
     "id": 1,
     "nested2": {
         "id": 1
      }
   }
}

Proposal query={nested1: nested_one__id, nested2: nested_one__nested_two__id} or maybe a dotted version query={nested1: nested_one.id, nested2: nested_one.nested_two.id} and return

{
  "nested1": 1
  "nested2": 1
}