PL/pgSQL, RETURN NEXT, ORDER

Hi,

When I call a PL/pgSQL function that looks roughly like the following:

...
FOR x IN SELECT ... ORDER BY ... LOOPRETURN NEXT x;
END LOOP;
RETURN;
END;

Is the order of the rows guaranteed to be preserved?

Thanks.

-- 
Markus Bertheau <twanger@bluetwanger.de>