It seems to me that for each geo facet, you need to execute a query which is fast. So in my example, the query will be executed 4 times. One for the regular query and 3 times with different radius retrieving the count. In other words, you don't really need to compute the distance for each point.
Wouldn't that work? Emmanuel On Wed 2013-07-03 14:21, Nicolas Helleringer wrote: > The difficulty in this is that unlike other facets counts those are to > be dynamically computed. > > The current facet systems (either native Lucene or Hibernate ones) are > using the Lucen Token reverse > indexes performance to compute the facets on queries results that can > be very large. > > This cannot be done here as the distance to the search center is dynamic. > If you have a query with 10k result and you display only the first ten > results as first page and to strengthen > the search you want geo facets then you have to compute distance on > all the 10k results to produce that. > On the performance PoV this will fail. > > Niko > > > 2013/7/3 Emmanuel Bernard <emman...@hibernate.org>: > > I'm more interested in something like > > > > Within 10 kms (23) > > Between 10 and 50 kms (45) > > Above 50 kms (75) > > > > > > On Wed 2013-07-03 11:24, Nicolas Helleringer wrote: > >> Was is demonstrated here has nothing of a facet : these are only > >> aggregates. > >> > >> <quote> > >> GeoDistanceFacet results: > >> ------------------------------------------------------------- > >> Distance from origin: 0.0 > >> Distance to requested: 1000.0 > >> Number of results: 29 > >> Minimum distance: 0.0 > >> Maximum distance: 899.5358131385483 > >> Sum of distances: 17320.209230844222 > >> Mean distance: 597.2485941670421 > >> </quote> > >> > >> I see nothing we cannot do. > >> > >> Niko > >> > >> 2013/7/3 Emmanuel Bernard <emman...@hibernate.org>: > >> > This morning I was reading > >> > http://hashmade.fr/elastic-search-geo-distance-search-with-sorted-and-faceted-results-using-java-native-api/ > >> > And the code https://github.com/jsebrien/elastic-search-tests > >> > > >> > I have to say that we compare quite well in number of lines of code and > >> > readability. Considering that ElasticSearch is considered the easy tool > >> > / API in the search space, I did not expect that. > >> > > >> > We could do better on the facet side, I particular to retrieve the facet > >> > data. > >> > > >> > By the way, they offer a way to facet by spatial distance, Hardy, > >> > Nicolas, how hard would it be to do the same? > >> > > >> > Emmanuel > >> > _______________________________________________ > >> > hibernate-dev mailing list > >> > hibernate-dev@lists.jboss.org > >> > https://lists.jboss.org/mailman/listinfo/hibernate-dev _______________________________________________ hibernate-dev mailing list hibernate-dev@lists.jboss.org https://lists.jboss.org/mailman/listinfo/hibernate-dev
