title: Mysql "drop function if exists" fails with code 1305
body: <p>When I try to execute the code bellow I get <code>mysql</code> error 1305:</p>
  
  <pre><code>DROP FUNCTION IF EXISTS myFunction;
  </code></pre>
  
  <p>It only fails when function does not exist. But why? Isn't that the cleanup step before you re-create functions?</p>