
DROP TABLE IF EXISTS ft_test; 
CREATE TABLE ft_test(
  copy VARCHAR(255),
  FULLTEXT(copy))
;

INSERT INTO ft_test(copy) VALUES ('test');

SELECT copy,MATCH(copy) AGAINST('test' IN BOOLEAN MODE) rel FROM ft_test;

ALTER TABLE ft_test ADD UNIQUE INDEX ft_test_unq (copy) USING BTREE;

SELECT copy,MATCH(copy) AGAINST('test' IN BOOLEAN MODE) rel FROM ft_test;