DROP TABLE IF EXISTS timer;
CREATE TABLE timer (
id int PRIMARY KEY,
elapsed time,
KEY elapsed_key(elapsed)
);
INSERT INTO timer VALUES (1, "00:00:00");
INSERT INTO timer VALUES (2, "15:11:12");
INSERT INTO timer VALUES (3, "838:59:59");
INSERT INTO timer VALUES (4, "-838:59:59");
SELECT *
FROM timer FORCE INDEX(elapsed_key)
WHERE elapsed = "-838:59:59";
id	elapsed
4	-838:59:59
DROP TABLE timer;
