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--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;
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