I have the following structure in Firebase.
user
    |- 111
          |-name: 'ABC'
    |- 222
          |-name: 'XYZ'
    |- 333
          |-name: 'AMN'
Now can I write a query in Angular2 in Ionic3 which will only give the users whose name contains letter 'A' or I have to fetch the entire list and filter.
 
    