select * from data where sn='1' and pq='cputemp' order by id desc limit 4
idsntspqvaluesystemts
29378650 1 cputemp 36.476 1576443868 Sun 15 12 2019 22:04:28
29378641 1 cputemp 37.014 1576443847 Sun 15 12 2019 22:04:07
29378629 1 cputemp 37.552 1576443828 Sun 15 12 2019 22:03:48
29378624 1 cputemp 37.552 1576443826 Sun 15 12 2019 22:03:46

Sun Dec 15 22:04:46 2019 by walley