DROP TABLE IF EXISTS t;
SET SESSION TOKUDB_DISABLE_SLOW_ALTER=ON;
CREATE TABLE t (a VARCHAR(100), b VARCHAR(100)) ENGINE=Tokudb;
INSERT INTO t VALUES ('hi','there'),('you','people');
SELECT * FROM t;
a	b
hi	there
you	people
ALTER TABLE t CHANGE COLUMN a a VARCHAR(101);
SHOW CREATE TABLE t;
Table	Create Table
t	CREATE TABLE `t` (
  `a` varchar(101) DEFAULT NULL,
  `b` varchar(100) DEFAULT NULL
) ENGINE=TokuDB DEFAULT CHARSET=latin1
ALTER TABLE t CHANGE COLUMN a a VARCHAR(200);
SHOW CREATE TABLE t;
Table	Create Table
t	CREATE TABLE `t` (
  `a` varchar(200) DEFAULT NULL,
  `b` varchar(100) DEFAULT NULL
) ENGINE=TokuDB DEFAULT CHARSET=latin1
SELECT * FROM t;
a	b
hi	there
you	people
DROP TABLE t;
CREATE TABLE t (i INT, a VARCHAR(100), b VARCHAR(100)) ENGINE=Tokudb;
INSERT INTO t VALUES (1, 'hi','there'),(2, 'you','people');
SELECT * FROM t;
i	a	b
1	hi	there
2	you	people
ALTER TABLE t CHANGE COLUMN a a VARCHAR(101);
SHOW CREATE TABLE t;
Table	Create Table
t	CREATE TABLE `t` (
  `i` int(11) DEFAULT NULL,
  `a` varchar(101) DEFAULT NULL,
  `b` varchar(100) DEFAULT NULL
) ENGINE=TokuDB DEFAULT CHARSET=latin1
ALTER TABLE t CHANGE COLUMN a a VARCHAR(200);
SHOW CREATE TABLE t;
Table	Create Table
t	CREATE TABLE `t` (
  `i` int(11) DEFAULT NULL,
  `a` varchar(200) DEFAULT NULL,
  `b` varchar(100) DEFAULT NULL
) ENGINE=TokuDB DEFAULT CHARSET=latin1
SELECT * FROM t;
i	a	b
1	hi	there
2	you	people
DROP TABLE t;