Support Bucket Filters in Facet Functions

Original link: http://lucene.472066.n3.nabble.com/Facet-Stats-MinCount-How-to-use-mincount-filter-when-use-facet-stats-td4299367.html

we need bucket filters in general (beyond mincount). - Yonik Seeley

We store some events data such as accountId, startTime, endTime, timeSpent and some other searchable fields.

We want to get all acountIds that spend more than xhours between startTime and endTime and some other criteria which are not important here.

We use solr facet function like below.
it's very powerful. The only missing part is that it doesn't minValue and maxValue filter.
http://localhost:8983/solr/events/select?q=*:*&json.facet={
categories:{
type : terms,
field : accountId,
numBuckets: true,
facet:

{ sum : "sum(timeSpent)" // it would be great if we support minValue, maxValue to do filter here }

}
}