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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
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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
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50
60
set session unique_checks=on;
DROP TABLE foo;
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