SET DEFAULT_STORAGE_ENGINE = 'tokudb';
DROP TABLE IF EXISTS t1;
create table t1 (
c1 int not null auto_increment primary key, c2 varchar(128) not null , c3 int, unique index unique_c2 (c2)
) engine=tokudb collate=latin1_general_ci;
insert into t1 (c1,c2) values (1,'THIS IS A TEST');
select c2 from t1;
c2
THIS IS A TEST
select * from t1;
c1	c2	c3
1	THIS IS A TEST	NULL
update t1 set c2 = 'this is a test' where c1 = 1;
select c2 from t1;
c2
this is a test
select * from t1;
c1	c2	c3
1	this is a test	NULL
insert into t1 (c1,c2) values(2,'ttt');
update t1 set c2 = 'ttt' where c1 = 1;
ERROR 23000: Duplicate entry 'ttt' for key 'unique_c2'
DROP TABLE t1;
