DROP TABLE IF EXISTS schedule_times;
CREATE TABLE schedule_times (
name VARCHAR(255),
time TIME NULL,
KEY time_index(time)
) DEFAULT CHARSET=utf8mb4;
INSERT INTO schedule_times VALUES ('midnight', '00:00:00');
INSERT INTO schedule_times VALUES ('null time', NULL);
INSERT INTO schedule_times VALUES ('sunrise', '05:43:10');
SELECT mroonga_command('index_column_diff --table schedule_times#time_index --name index');
mroonga_command('index_column_diff --table schedule_times#time_index --name index')
[]
SELECT * FROM schedule_times WHERE time = '00:00:00';
name	time
midnight	00:00:00
null time	00:00:00
DROP TABLE schedule_times;
