.  Similarly, revoking
   <code class="literal">SELECT</code> from a user might not prevent that user from using
   <code class="literal">SELECT</code> if <code class="literal">PUBLIC</code> or another membership
   role still has <code class="literal">SELECT</code> rights.
  </p><p>
   If <code class="literal">GRANT OPTION FOR</code> is specified, only the grant
   option for the privilege is revoked, not the privilege itself.
   Otherwise, both the privilege and the grant option are revoked.
  </p><p>
   