--source include/big_test.inc

--disable_warnings
drop procedure if exists sp1;
--enable_warnings

#
#-- 2. Adding (one millionth) one million times should be the same as
#-- adding 1. So a stored procedure with many iterations will show if
#-- small errors accumulate.
#

delimiter //;
#
CREATE PROCEDURE sp1()
BEGIN 
  DECLARE v1, v2, v3, v4 DECIMAL(28,12);
  DECLARE v3_2, v4_2 DECIMAL(28, 12);
  DECLARE counter INT;

  SET v1 = 1;
  SET v2 = 2;
  SET v3 = 1000000000000;
  SET v4 = 2000000000000;
  SET counter = 0;
  
  WHILE counter < 100000 DO
   SET v1 = v1 + 0.000000000001;
   SET v2 = v2 - 0.000000000001;
   SET v3 = v3 + 1;
   SET v4 = v4 - 1;
   SET counter = counter + 1; 
  END WHILE;

  SET v3_2 = v3 * 0.000000000001;
  SET v4_2 = v4 * 0.000000000001;

  SELECT v1, v2, v3, v3_2, v4, v4_2;
END//
#
call sp1()//
#-- should return 
#   -- v1=1.0000001
#   -- v2=1.999999900000
#   -- v3=1.0000001
#   -- v4=1.999999900000
#
delimiter ;//
#
drop procedure sp1;