I think the problem is, that my field is a date field and DA Search always turns my numeric selection into a date selction.
AND (age >= "1970-01-01 01:00:00") AND (age <= "1970-01-01 01:00:00")
but ist must be
AND (age >= "0") AND (age <= "100")
when I force it to use my field as a numeric selection there will be an error.
and it cuts my query.