triggers problems whit function

Ma. Cristina Peña C. <mpena@xxxxxxxxxxxxxx> · Wed, 22 Oct 2008 15:01:10 -0500

I want to use a function in to a trigger 

This is my

CREATE FUNCTION
"subradio"(integer) RETURNS integer AS 'select cast(count
(claveubica) as integer ) from asradios where ubicacion =0;' LANGUAGE 'sql';

And my ttrigger is 

CREATE TRIGGER validaradios
AFTER DELETE ON subestacion FOR EACH ROW EXECUTE PROCEDURE subradio(0);

But I got an error 

ERROR:  CreateTrigger:
function subradio() does not exist

What can I do??

Ing. María Cristina Peña C.

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