>> My question is, is it possible to run >> multiple combination of search queries to just get only result count "in a >> single trip" without using "facet.query"? >> > > No. AFAIK.
Yes, you're true. I just tried googling on this and I'm finding that a requirement similar to mine is being filed under "New Feature" towards v4.0 in JIRA. A RequestHandler to run multiple queries in a batch https://issues.apache.org/jira/browse/SOLR-1093 Alternatively, I'm also finding that "Field Collapsing/Result Grouping" is another feature in Solr which is analogous to Facet Querying, but for grouping. But, in my case, I think "Arbitrary Query Faceting" is the right choice to go with.