Trigger action lists and host variable lists.

Using IDS 7.22 on AIX 4.2 I have a trigger as follows and this should work as per SQL reference manual. create trigger TRIGGERA insert on shipto referencing new as pst for each row ( execute procedure get_code(pst.city, pst.county, pst.state, pst.post_code, pst.cust_code, pst.ship_to_code) into shipto.code, shipto.county ); I get the following error: 731: Invalid use of column reference in trigger body. I imagine this error is because both trigger action lists and host variable lists use commas as separators. Is there any way to execute a procedure that returns two values from a trigger as the manual suggests?