DROP TABLE IF EXISTS diaries;
CREATE TABLE diaries (
name VARCHAR(255),
created_at DATETIME(1) NULL,
KEY created_at_index(created_at)
) DEFAULT CHARSET=utf8mb4;
INSERT INTO diaries VALUES ("zero day", "1970-01-01 00:00:00.0");
INSERT INTO diaries VALUES ("null day", NULL);
SELECT mroonga_command("index_column_diff --table diaries#created_at_index --name index");
mroonga_command("index_column_diff --table diaries#created_at_index --name index")
[]
SELECT * FROM diaries WHERE created_at = "1970-01-01 00:00:00.0";
name	created_at
zero day	1970-01-01 00:00:00.0
null day	1970-01-01 00:00:00.0
DROP TABLE diaries;
