So would my best bet be to simply get ALL of my users uuids and ages, then throw away all of those that do not meet the required test?And in fact this is also what a traditional database does when you need table scan. And this will happen if you have not prepared an index on that column. ( The only reason why it works in most systems is that the amount of data is relative low )
Was this to much offtopic :) ? ./Morten