how to reload a function

I have 2 plpgsql defined functions, say:

create function A(....) returns ... as'
.....
'language 'plpgsql';

create function B(....) returns ... as '
declare
....
begin
select A(..) into myvar from ....
....
end;
'language 'plpgsql';

If I modify function A (drop && re_create), then I have to re_create
function B though no change to function B.

Is there any way (sql stmt) let me re_load function B's defination
without using drop and create??

Thanks.

Jie LIANG

St. Bernard Software

10350 Science Center Drive
Suite 100, San Diego, CA 92121
Office:(858)320-4873

jliang(at)ipinc(dot)com
www.stbernard.com
www.ipinc.com