Hello, I have to perform range queries agains a date field. It is a TrieDateField, and I'm already using it for sorting. Hence, there will be already en entry in the FieldCache for it. According to:
http://www.lucidimagination.com/blog/2009/07/06/ranges-over-functions-in-solr-14/ frange queries are typically faster than normal range queries when there are many terms between the endpoints (though it could be slower, if there's less than a 5% of terms between the endpoints). The cost of this speedup is the memory associated with a FieldCache entry for the field. In my case, there's no additional memory overhead, as there's already such entry. It also states that TrieRange queries have the best space/speed tradeoff. Now my doubt is: if I have no memory overhead, then I only care about relative speed between frange and trie. The good speed/space tradeoff of trie is not the measure I need in this case, but just a comparison at pure speed level. Does anybody know if there's data about this? Any clue on whether to choose frange or trie in this case? Thanks, Juan
