SELECT field groups

Interesting feature request. The ability to request fields that are grouped in the output.

For example:

$result = $db->mytable->find(array(), array('id', dob', 'name' => array('first' => 'first_name', 'last' => 'last_name')));

dump($result->fetch());

Would output something like:

{
  "id": 1,
  "dob": "1978-12-13",
  "name": {
    "first": "Jamie",
    "last": "Carl"
  }
}