I'd like to do something like this on the fly:
select * from index where (fld1 < 4) and (fld2 == "a") or ( (fld3 < "b") and (fld3 > "d"))
where I'm given the names of the fields and the values.
I think I've got to use QueryFilters in some way but can't find any examples.
Can someone me out?