MINI MINI MANI MO

#
# BUG#21111301 INNODB FTS: ERROR DUPLICATE ENTRY IN FTS_DOC_ID_INDEX ON UPDATE CASCADE
#
CREATE TABLE t1 (
	a	varchar(40),
	KEY	a(a)
) ENGINE=InnoDB;

CREATE TABLE t1_fk (
	a	varchar(40),
        KEY	a(a),
	FULLTEXT KEY (a),
	CONSTRAINT fk FOREIGN KEY (a) REFERENCES t1 (a) ON UPDATE CASCADE
) ENGINE=InnoDB;

INSERT INTO t1 VALUES('mysql');

INSERT INTO t1_fk VALUES('mysql');
INSERT INTO t1_fk VALUES('mysql');

SELECT * FROM t1_fk;
SELECT * FROM t1_fk WHERE MATCH(a) AGAINST('mysql');

UPDATE t1 SET a = 'database' WHERE a = 'mysql';

SELECT * FROM t1_fk;
SELECT * FROM t1_fk WHERE MATCH(a) AGAINST('mysql');
SELECT * FROM t1_fk WHERE MATCH(a) AGAINST('database');

DROP TABLE t1_fk;
DROP TABLE t1;