title: Solr facet interval
body: <p>I have a solr 4.50 installation and want to show a interval facet.
  I read the docs here: </p>
  
  <p><a href="https://wiki.apache.org/solr/SimpleFacetParameters#Interval_Faceting" rel="nofollow">https://wiki.apache.org/solr/SimpleFacetParameters#Interval_Faceting</a></p>
  
  <p>and added exactly the same field, "price". I can get all sorts of faceting, except interval:</p>
  
  <pre><code>...&amp;facet=true&amp;facet.interval=price&amp;f.price.facet.interval.set=(10,100]
  </code></pre>
  
  <p>Yet, I don't get anything related to intervals:</p>
  
  <pre><code>  "facet_counts": {
      "facet_queries": {},
      "facet_fields": {},
      "facet_dates": {},
      "facet_ranges": {}
    }
  </code></pre>
  
  <p>Also, except the above documentation link, I didn't find anything related to interval faceting. </p>
  
  <p>Can somebody give me a working example?</p>