title: Realm how to make a query for items that have the size of an array bigger than 0?
body: <p>I checked the documentation, and I know how to access objects from within objects, like:</p>
  
  <pre><code>RealmResults&lt;User&gt; r1 = realm.where(User.class)
                           .equalTo("dogs.name", "Fluffy")
                           .equalTo("dogs.color", "Brown")
                           .findAll();
  </code></pre>
  
  <p>But if I have in my User.class a realmlist: dogs, how can I check if it has items?</p>
  
  <pre><code>RealmResults&lt;User&gt; r1 = realm.where(User.class)
                           .equalTo("dogs.size", 0)
                           .findAll();
  </code></pre>