title: How to Clear Magento's Caching of its DB Schema?
body: <p>I'm developing a Magento extension that introduces a new table to the DB. Whenever I release a new version of the extension that makes modifications to the table schema, I find that users are forced to manually click the "Flush Cache Storage" button under System > Cache Management. </p>
  
  <p>I'd like to have my extension automatically clear the cache upon being installed. I know how to do the same thing as the button programmatically but I'd prefer not to, because this deletes the entire Magento cache folder and impacts negatively on performance. </p>
  
  <p>Might anyone know how to write code that will clear the caching of my table's schema and do so as specifically as possible - leaving unrelated cached data unharmed?</p>
  
  <p>Update: I've found the file containing my table's schema cache here: <code>/var/cache/mage-f/mage---d07_DB_PDO_MYSQL_DDL_&lt;table_name&gt;_1d</code> . Now how do I target it in code? :)</p>