[GENERAL] returns setof rec... simple exampe doesn't work

[Gauthier, Dave]

I've googled this one and tried everything (except the correct solution
of course) until tears are starting to flow.  Please help.  Complete
example below.  7.4.13 on suse-64 x86

 

 

 

create table mytable (mystring varchar, myreal real);

insert into mytable (mystring,myreal) values ('abc',1.23);

insert into mytable (mystring,myreal) values ('def',4.56);

 

create type myrec as (mystring varchar, myreal real);

 

create or replace function myfunc() returns setof myrec as '

declare

  crec myrec;

begin

 

  for crec in select * from mytable loop

    return next crec;

  end loop;

    

  return;

end;

' language 'plpgsql';

 

 

stdb=# select myfunc();

ERROR:  set-valued function called in context that cannot accept a set

CONTEXT:  PL/pgSQL function "myfunc" line 6 at return next