SET STORAGE_ENGINE = 'tokudb';
DROP TABLE IF EXISTS foo;
create table foo (a int, b int, c int, clustering key (a))engine=tokudb;
insert into foo values (1,1,1),(1,2,2),(1,3,3),(2,1,4),(2,2,5),(2,3,6),(3,1,7),(3,2,8);
explain select * From foo where a = 2;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	foo	ref	a	a	5	const	NULL;	Using where
select * From foo where a = 2;
a	b	c
2	1	4
2	2	5
2	3	6
DROP TABLE foo;