title: Android Firebase Query
body: <p>I have this structure
  <a href="https://i.stack.imgur.com/XI28r.png" rel="noreferrer"><img src="https://i.stack.imgur.com/XI28r.png" alt="enter image description here"></a>
  Now, Im making a query like this:</p>
  
  <pre><code> DatabaseReference myRef = database.getReference("users");
          myRef.equalTo("6991580","ci").addListenerForSingleValueEvent(new ...
  </code></pre>
  
  <p>I was expecting the second node as result.. Then I get:</p>
  
  <blockquote>
    <p>DataSnapshot { key = users, value = null }</p>
  </blockquote>
  
  <p>So, what is wrong with this query? or maybe Im doing something wrong?</p>
  
  <p>Best regards and thanks for reply.</p>