plpgsql 函数定义

--Function: dbo.fn_test(integer)

--DROP FUNCTION dbo.fn_test(integer);

CREATE OR REPLACE FUNCTION dbo.fn_test
(
  IN  p_count  integer = 0
)
RETURNS TABLE 
(
  id   integer,
  des  text
)
AS
$$
declare
  i integer; 
  top integer; 
  rec record;
begin
  /* Insert real code here */
  select into rec * from dbo.a_org_type order by id desc limit 1;
  i := rec.id + 1;
  top := i + p_count;
  
  while i < top loop
    insert into dbo.a_org_type(id, des) 
    values(i, 'shang hai ' || i);
    i:= i+1;
  end loop;
  
  return query select * from dbo.a_org_type order by id desc limit 10;
end;
$$
LANGUAGE 'plpgsql';

ALTER FUNCTION dbo.fn_test(integer)
  OWNER TO postgres;