ecpg: HOW TO READ RECORD ??

["Roger Moloney" <ramoloney(at)hotmail(dot)com>]

Hi,

We use ecpg (embedded sql) and plpgsql (postgres functions).

I'm having trouble trying to get embedded SQL to read the result of a 
plpgsql function which returns RECORD or SETOF RECORD.

Does anyone have an example of this ?  I don't see it in the ecpg source 
examples or in the ecpg manual.

/* following is an example of plpgsql to illustrate the data being returned 
*/

/* type defined for the record that the function will return to avoid using 
column list */
create type tp_GetPerson as (
 person_name    char(40),
 person_age      smallint
);

/* this function returns zero or more tp_GetPerson records */
create function p_GetPersonByDept (pperson_dept integer)
 returns SETOF tp_GetPerson as
$$
declare
 v_record tp_GetPerson%ROWTYPE;
begin
 for v_record in
   select person_name, person_age from person where person_dept = 
pperson_dept
 loop
    return next v_record;
 end loop;
 return;
end
$$
language 'plpgsql';

WHAT SHOULD THE ECPG PROGRAM LOOK LIKE THAT CAN  READ THE DATA RETURNED ?

thanks,
RML

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