title: Pattern replacement syntax
body: <p>The documentation grafana on the use with InfluxDb (<a href="http://docs.grafana.org/features/datasources/influxdb/#alias-patterns" rel="nofollow noreferrer">Using InfluxDB in Grafana</a>), it is mentioned the possibility to use as alias pattern:</p>
  
  <blockquote>
    <p>You can also use [[tag_hostname]] pattern replacement syntax</p>
  </blockquote>
  
  <p><a href="https://i.stack.imgur.com/cLLrM.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/cLLrM.png" alt="enter image description here"></a></p>
  
  <p>How it works ?</p>