says that <code>mod_sql_passwd</code> should use the
    <code>HASH()</code> function and then the <code>ENCODE()</code> function
    on the salt data before using it.  If no salt is used, this option is
    silently ignored.  Thus:
<pre>
  <i>data</i> = ENCODE(HASH(<i>salt</i>)) + <i>password</i>
</pre>
    which assuming hex and MD5, means:
<pre>
  <i>data</i> = hex(MD5(<i>salt</i>)) + <i>password</i>
</pre>
  </li>
</ul>

<p>
Of course, these various options can be combined:
<pre>
  SQLPasswordOptions Ha