title: How do you search zipcodes using Zend Lucene?
body: <p>I have very simple company index with Zend Lucene using this to create the index:</p>
  
  <pre><code>// store company primary key to identify it in the search results
  $doc-&gt;addField(Zend_Search_Lucene_Field::Keyword('pk', $this-&gt;getId()));
  
  // index company fields
  $doc-&gt;addField(Zend_Search_Lucene_Field::Unstored('zipcode', $this-&gt;getZipcode(), 'utf-8'));
  $doc-&gt;addField(Zend_Search_Lucene_Field::Unstored('name', $this-&gt;getName(), 'utf-8'));
  </code></pre>
  
  <p>I can search on the company name but not the zipcode. Is there a problem with Zend Lucene Search indexing integers? If s/o could shed some light who was experience, please help me out. I can only imagine using Lucene to search by zipcode is pretty common.</p>