title: Updating Solr configuration to search on all fields
body: <p>Can anyone advise me on how to search Solr on all fields?</p>
  
  <p>This is my current requestHandler called "search" and using solr.SearchHandler.</p>
  
  <pre><code>&lt;requestHandler name="search" class="solr.SearchHandler" default="true"&gt;
    &lt;!-- default values for query parameters can be specified, these
           will be overridden by parameters in the request
      --&gt;
     &lt;lst name="defaults"&gt;
      &lt;str name="echoParams"&gt;explicit&lt;/str&gt;
      &lt;int name="rows"&gt;10&lt;/int&gt;
     &lt;/lst&gt;
  &lt;/requestHandler&gt;
  </code></pre>
  
  <p>It appears that I can search on all <em>textual</em> fields, however I need to search on a field called 's_number' and this is an integer. </p>
  
  <p>Do I need to use DisMax to allow for searching on <em>all</em> fields?</p>
  
  <p>Also, do I need to adjust the defaultSearchField in schema.xml? It is currently:</p>
  
  <pre><code>&lt;defaultSearchField&gt;text&lt;/defaultSearchField&gt;
  </code></pre>