title: Best Practices ON DELETE CASCADE MySQL
body: <p>I have a MySQL(innoDB) database that is growing and it's necessary to define a cleaning strategy for old rows.</p>
  <p>My first purpose was set FK with <code>ON DELETE CASCADE</code> option but I don't know if that suppose any performance issue...</p>
  <p>Any suggestion? Which are the best practices for cleaning old data?</p>