I used this filter for date.
[Ls_DATe]>=(CASE (_day_of_week(current_date,1))
WHEN 1 THEN _add_days(current_date,1)
WHEN 2 THEN _add_days(current_date,-2)
WHEN 3 THEN _add_days(current_date,-3)
WHEN 4 THEN _add_days(current_date,-4)
WHEN 5 THEN _add_days(current_date,-5)
WHEN 6 THEN...