title: Query to match content of two fields in Kibana
body: <p>I'm using ElasticSearch with Kibana for visualization. I want to build a query to match two different fields when they have the same content. <br>
  For example:</p>
  
  <blockquote>
    <p>field1: address = google.com <br>field2: hostname = google.com</p>
  </blockquote>
  
  <p>Is ist possible to match two fields without knowing their values?</p>
  
  <p>Thanks!</p>