problem with RECORD in a stored procedure

HI,

I have a strange problem with regard to the RECORD type. IN plpgsql language it 
doesn't seem to recognise the data type. Does anybody have any idea why? I've 
included a sample function and the terminal output to show what I mean. I've 
also included what should have gone into table orla.

Any help would be appreciated in sorting out this frustrating problem.

Shane

CREATE FUNCTION sinead() RETURNS integer AS 'DECLARE    a integer :=0;    b RECORD;     BEGIN    FOR b IN SELECT
MIN(total)from results LOOP        INSERT INTO orla(total) VALUES(b);    END LOOP;        RETURN a;        END;
 
' LANGUAGE 'plpgsql';

-------------------------------------------------------------------------

ballina=# select sinead();
ERROR:  Attribute 'b' not found

--------------------------------------------------------------------------
ballina=# select MIN(total) from results;min 
-----  2
(1 row)

---------------------------------------------------------------------------