title: How can I retrieve data with queryEqualToValue in auto id child. Firebase-iOS
body: <p>As my question. I can't retrieve data from firebase when I try to use "queryEqualToValue" with auto id key.</p>
  
  <pre><code>self.ref.child(..my child..).queryOrderByChild("name").queryEqualToValue("my name")
  </code></pre>
  
  <p>auto child id above child "name".</p>
  
  <p>Edit: for my json tree</p>
  
  <ul>
  <li>Students
  
  <ul>
  <li>(auto id)
  
  <ul>
  <li>name
  
  <ul>
  <li>first name</li>
  <li>nick name</li>
  </ul></li>
  </ul></li>
  </ul></li>
  </ul>
  
  <p>My real data doesn't like this but this's for example structure.
  I really want to check equal to "first name".</p>
  
  <p>Here's my code</p>
  
  <pre><code>let ref = FIRDatabase.database().reference()
  ref.child("Students").queryOrderedByChild("name").queryEqualToValue("Jason bourne").observeEventType(.Value, withBlock: { snapshot in 
     print("value : " + snapshot.value)
  }
  </code></pre>