select count(temperature), sum(temperature), avg(temperature) from db.devices where devgroup<10 interval(1m);
select count(temperature), sum(temperature), avg(temperature) from db.devices where devgroup<20 interval(1m);
select count(temperature), sum(temperature), avg(temperature) from db.devices where devgroup<30 interval(1m);
select count(temperature), sum(temperature), avg(temperature) from db.devices where devgroup<40 interval(1m);
select count(temperature), sum(temperature), avg(temperature) from db.devices where devgroup<50 interval(1m);
select count(temperature), sum(temperature), avg(temperature) from db.devices where devgroup<60 interval(1m);
select count(temperature), sum(temperature), avg(temperature) from db.devices where devgroup<70 interval(1m);
select count(temperature), sum(temperature), avg(temperature) from db.devices where devgroup<80 interval(1m);
select count(temperature), sum(temperature), avg(temperature) from db.devices where devgroup<90 interval(1m);
select count(temperature), sum(temperature), avg(temperature) from db.devices interval(1m);