what's going on...

Hello!

I was trying to create a function:

CREATE FUNCTION analizuj_pomiary() RETURNS bool AS '
DECLARE pomiary RECORD;
BEGIN
     FOR pomiary IN SELECT * FROM brewan_pomiar LOOP

       IF substr(pomiary.datetime,1,10)=to_char(now(),'mm/dd/yyyy')
       THEN
          INSERT INTO TESTOWA
          VALUES (
         analizuj_flow(
         pomiary.ipRouter,
         pomiary.source_ip,
         pomiary.dest_ip,
         pomiary.bytes,
         pomiary.datetime)
         );
       END IF;

     END LOOP;
 RETURN true;
END; ' LANGUAGE 'plpgsql';

... and I received an error:

ERROR:  parser: parse error at or near "mm"

What's going on? What does it mean?

-----
Łukasz Feldman, Konsultant
Zespol Konsultantow ds. Systemów Zarzadzania Sieciami i Systemami
Telekomunikacyjnymi;
ATM S.A., ul. Grochowska 21a, 04-186 Warszawa, POLAND
tel  (+48 22) 5156332, fax (+48 22) 5156146, mobile (+48) 607 167 634 ,
http://www.atm.com.pl