EVOLUTION-MANAGER

Edit File: 1913.result

SET DEFAULT_STORAGE_ENGINE = 'tokudb';
DROP TABLE IF EXISTS foo;
set session unique_checks=off;
create table foo (a int, b int, c int, primary key (a), key(b));
insert into foo values (1,10,100),(2,20,200),(3,30,300),(4,40,400),(5,50,500),(6,60,600);
explain select * from foo;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	foo	ALL	NULL	NULL	NULL	NULL	6	
select * from foo;
a	b	c
1	10	100
2	20	200
3	30	300
4	40	400
5	50	500
6	60	600
explain select b from foo;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	foo	index	NULL	b	5	NULL	6	Using index
select b from foo;
b
10
20
30
40
50
60
replace into foo values (1,1,1);
explain select * from foo;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	foo	ALL	NULL	NULL	NULL	NULL	6	
select * from foo;
a	b	c
1	1	1
2	20	200
3	30	300
4	40	400
5	50	500
6	60	600
explain select b from foo;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	foo	index	NULL	b	5	NULL	6	Using index
select b from foo;
b
1
20
30
40
50
60
set session unique_checks=on;
DROP TABLE foo;