How to do RangeQuery on a Computed Value of a Field?

Hi All, I was looking for a way to do a range query on 2 numeric field of my index. The tricky part is, I don't directly use the numeric field but I have to use it on a computation formula to satisfy my criteria. Hope this helps to explain my scenario: pointX--> latitude X input by user.

Lucene and KFS (Kosmos Filesystem)

Hi, Has anyone tried running Lucene (indexing+searching) on top of KFS ( http://kosmosfs.sourceforge.net/ )? From reading about KFS it makes me think it would not be great for searching for the same reason HDFS is not the best place to keep your searchable Lucene indices, but maybe somebody ha