FAIK, There are no columns per se. But in the past I've just used UTM values for each lat lon and just do basic numeric operators >, < to search within a bounding geographic region. Add them as numeric fields though. Easy.
There is new support for spatial searching, however I'm not sure how it compares to what I described, which works great. Probably does some automatic conversions or something. Check the wiki. On Sat, 2010-04-17 at 18:39 -0700, Dennis Gearon wrote: > How does solr/lucene do geometric distances? > > Does it use a GEOS point datum, or two columns one for latitude, one for > longitude? > > > Dennis Gearon > > Signature Warning > ---------------- > EARTH has a Right To Life, > otherwise we all die. > > Read 'Hot, Flat, and Crowded' > Laugh at http://www.yert.com/film.php