will also
        cause <CODE
CLASS="FUNCTION"
>xpath_exists()</CODE
> to return true, not false,
        for such expressions.
       </P
></LI
><LI
><P
>        Improve <ACRONYM
CLASS="ACRONYM"
>XML</ACRONYM
> error handling to be more robust
        (Florian Pflug)
       </P
></LI
></UL
></DIV
><DIV
CLASS="SECT3"
><H3
CLASS="SECT3"
><A
NAME="AEN116741"
>E.8.3.7. Functions</A
></H3
><P
></P
><UL
><LI
><P
>        Allow non-superusers to use <A
HREF="functions-admin.html#FUNCTIONS-ADMIN-SIGNAL"
><CODE
CLA