title: MYSQL Match AGAINST
body: <p>I have table called 'business' with 13,000,000 records so far.
  I want to search in this table on lowerTitle and phone fields.
  If I'm using:</p>
  
  <pre><code>SELECT * FROM business WHERE MATCH (lowerTitle) AGAINST (`blabla` IN BOOLEAN MODE);
  </code></pre>
  
  <p>It's working fast, Now I want to search also in <code>phone</code> field using:</p>
  
  <pre><code>SELECT * FROM business WHERE MATCH (lowerTitle,phone) AGAINST (`blabla` IN BOOLEAN MODE);
  </code></pre>
  
  <p>for some reason, it's working very slow, someone can assist here?</p>
  
  <p>Thank you very much.</p>