select * from data where sn='max1' and pq='curr' order by id desc limit 4
idsntspqvaluesystemts
6107345 max1 curr 0.605 1505613499 Sun 17 09 2017 03:58:19
6107333 max1 curr 0.565 1505613400 Sun 17 09 2017 03:56:40
6107295 max1 curr 0.529 1505613359 Sun 17 09 2017 03:55:59
6107291 max1 curr 0.458 1505613300 Sun 17 09 2017 03:55:00

Wed Jun 26 09:40:13 2019 by walley