set term ^;
create or alter function fn_test
returns bigint
AS
declare id_selected bigint = null;
begin
  if (id_selected is null ) then return 1;
  else return 2;
end
^
set term ;^
commit;

set term ^;
create or alter procedure sp_test returns(x bigint)
AS
declare id_selected bigint = null;
begin
  if (id_selected is null ) then x=1;
  else  x=2;
  suspend;
end
^
set term ;^
commit;

Wrong numeric type.
Dynamic SQL Error.
SQL error code = -842.
Precision must be from 1 to 18.