DROP TABLE IF EXISTS items;
CREATE TABLE items (
name VARCHAR(255),
price INT KEY
) ENGINE=Mroonga DEFAULT CHARSET=utf8mb4;
INSERT INTO items VALUES ("hamburger", 200);
INSERT INTO items VALUES ("smile", 0);
INSERT INTO items VALUES ("coke", 100);
SELECT * FROM items;
name	price
smile	0
coke	100
hamburger	200
SELECT * FROM items WHERE price = 0;
name	price
smile	0
SELECT * FROM items WHERE price <= 100;
name	price
smile	0
coke	100
DROP TABLE items;
