select * from data where sn='1' and pq='cputemp' order by id desc limit 4
idsntspqvaluesystemts
21718779 1 cputemp 47.774 1561534964 Wed 26 06 2019 09:42:44
21718774 1 cputemp 47.774 1561534963 Wed 26 06 2019 09:42:43
21718761 1 cputemp 47.774 1561534944 Wed 26 06 2019 09:42:24
21718755 1 cputemp 47.774 1561534924 Wed 26 06 2019 09:42:04

Wed Jun 26 09:43:06 2019 by walley