technical/rank20/long_hld
select date, comd, long_hld from rank20 
long_hld last_date is 2025-04-21 00:00:00+08:00
technical/rank20/long_chg
select date, comd, long_chg from rank20 
long_chg last_date is 2025-04-21 00:00:00+08:00
technical/rank20/short_hld
select date, comd, short_hld from rank20 
short_hld last_date is 2025-04-21 00:00:00+08:00
technical/rank20/short_chg
select date, comd, short_chg from rank20 
short_chg last_date is 2025-04-21 00:00:00+08:00
technical/rank20/vol
select date, comd, vol from rank20 
vol last_date is 2025-04-21 00:00:00+08:00
technical/rank20/vol_chg
select date, comd, vol_chg from rank20 
vol_chg last_date is 2025-04-21 00:00:00+08:00