select * from data where sn='ds0' and pq='temp' order by id desc limit 4
idsntspqvaluesystemts
29378692 ds0 temp 19.10 1576443933 Sun 15 12 2019 22:05:33
29378680 ds0 temp 19.10 1576443911 Sun 15 12 2019 22:05:11
29378668 ds0 temp 19.10 1576443890 Sun 15 12 2019 22:04:50
29378646 ds0 temp 19.10 1576443868 Sun 15 12 2019 22:04:28

Sun Dec 15 22:05:57 2019 by walley