: -filterMinutes:[* TO *] should return documents that do not have a value assigned to that field.
correct, but combining a negative filter with another filter can be confusing for people, you can't just use this... fq=filterMinutes:[* TO 50] -filterMinutes:[* TO *] ..because it finds hte set of all things under 50 minutes, and then excludes all things with any minutes at all. you need to compute "the set of all things with no minutes" as a full independent clause in the filter query... fq=filterMinutes:[* TO 50] (*:* -filterMinutes:[* TO *]) If this is a type of query you know you are going to need to do often, you can make it faster by adding a "has_minutes" boolean field and doing... fq=filterMinutes:[* TO 50] has_minutes:false -Hoss
