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drop table if exists a,b,c,foo;
create table a (a int auto_increment, primary key (a)) engine=TokuDB;
create table b (a int auto_increment, primary key (a)) engine=TokuDB;
create table c (a int auto_increment, primary key (a)) engine=TokuDB;
insert into a values (),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),();
insert into b values (),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),();
insert into c values (),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),();
create table foo (a int, b int, c int, d int, e int, key(a,b,c)) engine=TokuDB;
insert into foo (a,b,c) select * from a,b,c;
flush status;
show status like '%Handler_read_next%';
Variable_name Value
Handler_read_next 0
explain select * from foo where a between 5 and 6 and c=10;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE foo range a a 5 NULL NA Using where
select * from foo where a between 5 and 6 and c=10;
a b c d e
5 1 10 NULL NULL
5 2 10 NULL NULL
5 3 10 NULL NULL
5 4 10 NULL NULL
5 5 10 NULL NULL
5 6 10 NULL NULL
5 7 10 NULL NULL
5 8 10 NULL NULL
5 9 10 NULL NULL
5 10 10 NULL NULL
5 11 10 NULL NULL
5 12 10 NULL NULL
5 13 10 NULL NULL
5 14 10 NULL NULL
5 15 10 NULL NULL
5 16 10 NULL NULL
5 17 10 NULL NULL
5 18 10 NULL NULL
5 19 10 NULL NULL
5 20 10 NULL NULL
6 1 10 NULL NULL
6 2 10 NULL NULL
6 3 10 NULL NULL
6 4 10 NULL NULL
6 5 10 NULL NULL
6 6 10 NULL NULL
6 7 10 NULL NULL
6 8 10 NULL NULL
6 9 10 NULL NULL
6 10 10 NULL NULL
6 11 10 NULL NULL
6 12 10 NULL NULL
6 13 10 NULL NULL
6 14 10 NULL NULL
6 15 10 NULL NULL
6 16 10 NULL NULL
6 17 10 NULL NULL
6 18 10 NULL NULL
6 19 10 NULL NULL
6 20 10 NULL NULL
show status like '%Handler_read_next%';
Variable_name Value
Handler_read_next 41
flush status;
show status like '%Handler_read_prev%';
Variable_name Value
Handler_read_prev 0
explain select * from foo where a between 5 and 6 and c=10;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE foo range a a 5 NULL NA Using where
select * from foo where a between 5 and 6 and c=10 order by a desc;
a b c d e
6 20 10 NULL NULL
6 19 10 NULL NULL
6 18 10 NULL NULL
6 17 10 NULL NULL
6 16 10 NULL NULL
6 15 10 NULL NULL
6 14 10 NULL NULL
6 13 10 NULL NULL
6 12 10 NULL NULL
6 11 10 NULL NULL
6 10 10 NULL NULL
6 9 10 NULL NULL
6 8 10 NULL NULL
6 7 10 NULL NULL
6 6 10 NULL NULL
6 5 10 NULL NULL
6 4 10 NULL NULL
6 3 10 NULL NULL
6 2 10 NULL NULL
6 1 10 NULL NULL
5 20 10 NULL NULL
5 19 10 NULL NULL
5 18 10 NULL NULL
5 17 10 NULL NULL
5 16 10 NULL NULL
5 15 10 NULL NULL
5 14 10 NULL NULL
5 13 10 NULL NULL
5 12 10 NULL NULL
5 11 10 NULL NULL
5 10 10 NULL NULL
5 9 10 NULL NULL
5 8 10 NULL NULL
5 7 10 NULL NULL
5 6 10 NULL NULL
5 5 10 NULL NULL
5 4 10 NULL NULL
5 3 10 NULL NULL
5 2 10 NULL NULL
5 1 10 NULL NULL
show status like '%Handler_read_prev%';
Variable_name Value
Handler_read_prev 800
flush status;
show status like '%Handler_read_prev%';
Variable_name Value
Handler_read_prev 0
explain select * from foo where a > 19 and c=10;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE foo range a a 5 NULL NA Using where
select * from foo where a > 19 and c=10 order by a desc;
a b c d e
20 20 10 NULL NULL
20 19 10 NULL NULL
20 18 10 NULL NULL
20 17 10 NULL NULL
20 16 10 NULL NULL
20 15 10 NULL NULL
20 14 10 NULL NULL
20 13 10 NULL NULL
20 12 10 NULL NULL
20 11 10 NULL NULL
20 10 10 NULL NULL
20 9 10 NULL NULL
20 8 10 NULL NULL
20 7 10 NULL NULL
20 6 10 NULL NULL
20 5 10 NULL NULL
20 4 10 NULL NULL
20 3 10 NULL NULL
20 2 10 NULL NULL
20 1 10 NULL NULL
show status like '%Handler_read_prev%';
Variable_name Value
Handler_read_prev 400
flush status;
show status like '%Handler_read_next%';
Variable_name Value
Handler_read_next 0
explain select * from foo where a > 19 and c=10;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE foo range a a 5 NULL NA Using where
select * from foo where a > 19 and c=10;
a b c d e
20 1 10 NULL NULL
20 2 10 NULL NULL
20 3 10 NULL NULL
20 4 10 NULL NULL
20 5 10 NULL NULL
20 6 10 NULL NULL
20 7 10 NULL NULL
20 8 10 NULL NULL
20 9 10 NULL NULL
20 10 10 NULL NULL
20 11 10 NULL NULL
20 12 10 NULL NULL
20 13 10 NULL NULL
20 14 10 NULL NULL
20 15 10 NULL NULL
20 16 10 NULL NULL
20 17 10 NULL NULL
20 18 10 NULL NULL
20 19 10 NULL NULL
20 20 10 NULL NULL
show status like '%Handler_read_next%';
Variable_name Value
Handler_read_next 21
drop table foo,a,b,c;
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