select * from data where sn='1' and pq='gputemp' order by id desc limit 4
idsntspqvaluesystemts
29378639 1 gputemp 37.0 1576443847 Sun 15 12 2019 22:04:07
29378627 1 gputemp 37.0 1576443828 Sun 15 12 2019 22:03:48
29378622 1 gputemp 37.0 1576443826 Sun 15 12 2019 22:03:46
29378610 1 gputemp 37.6 1576443807 Sun 15 12 2019 22:03:27

Sun Dec 15 22:04:20 2019 by walley