: Follow up question: what if it is a string instead of number? While you can : use [387 TO *] to find out all number that is bigger than 387, how do you : find specific set of "string"?
range queries should also work on strings, but i think the more general solution to your problem is that you should index an additional field that contains the total number of values in your multivalued field, and then use the count as a constraint as well... +field_name:(385 386) +field_name_count:2 -Hoss
