print ====> select count(*),first(tagtype),last(tagtype),avg(tagtype),sum(tagtype),min(tagtype),max(tagtype),leastsquares(tagtype, 1, 1) from (select * from dev_001 where ts <'2020-05-20 0:0:0') session(ts,1d)
#print ====> select count(*),first(tagtype),last(tagtype),avg(tagtype),sum(tagtype),min(tagtype),max(tagtype),leastsquares(tagtype, 1, 1) from (select * from dev_001 where ts <'2020-05-20 0:0:0') session(ts,1d)
#sql select count(*),first(tagtype),last(tagtype),avg(tagtype),sum(tagtype),min(tagtype),max(tagtype),leastsquares(tagtype, 1, 1) from (select * from dev_001 where ts <'2020-05-20 0:0:0') session(ts,1d)