title: unable to drop the foreign key
body: <p>I would like to drop the foreign key in my table but been into this error message</p>
  
  <pre><code>mysql&gt; alter table customers drop foreign key customerid;
  ERROR 1025 (HY000): Error on rename of '.\products\customers' to '.\products\#sql2-7ec-a3' (errno: 152)
  mysql&gt;
  </code></pre>