pl-pgsql question

Greetings,

I'm writing some stored procedures using pl-pgsql and I need to know how
many tuples were affected by a update/delete/insert command.

Let's suppose my script is like this :

CREATE FUNCTION gerachave(INT4) RETURNS INT4 AS'
DECLARE
CAD ALIAS FOR $1;
BEGIN
novovalor := 0;

UPDATE table1 SET is_ok = 1 WHERE cod_cad = CAD;

INSERT INTO cnfg_gerachave VALUES (<quantity of tuples affected by
UPDATE>);

RETURN CAD;
END;
'
LANGUAGE 'plpgsql';

Is it possible to discovery how many tuples were affected? How can I do it?

Thanks in advance.

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José Vilson de Mello de Farias
Software Engineer

Dígitro Tecnologia Ltda - www.digitro.com.br
APC - Customer Oriented Applications
E-mail: vilson(dot)farias(at)digitro(dot)com(dot)br
Tel.: +55 48 281 7158
ICQ 11866179