title: Solr terms component over multiple fields?
body: <p>I am able to receive the most frequently used terms in my index via the terms compontent described here:</p>
  
  <p><a href="http://wiki.apache.org/solr/TermsComponent" rel="nofollow">http://wiki.apache.org/solr/TermsComponent</a></p>
  
  <p>However this only seems to work for exactly one field. 
  I would really like to have this functionality over several fields.</p>
  
  <p>I am aware that I can use an extra field that I fill with all the data when indexing, but I would like to leverage this redundancy if possible.</p>
  
  <p>Is there a possibility to use the termscomponent over several fields?</p>