[hibernate-dev] [HSEARCH] Geo queries in ElasticSearch

[Emmanuel Bernard]

On Wed 2013-07-03 14:57, Nicolas Helleringer wrote:
> I did not get your point Ales :
> 
> Hibernate Search does support geo queries since 4.2 (early 2013) so
> yes you can know which points are in a certain distance event with big
> number of data.
> 
> The challenge for geo facets is to do this many times (as many times
> as they are defined ranges) as automatically as possible.
> 
> Niko
> 
> 2013/7/3 Ales Justin <ales.justin at gmail.com>:
> > Can you then also easily (aka really fast) know which are those points -- even with really big number of data?
> >
> > On Jul 3, 2013, at 2:14 PM, Emmanuel Bernard <emmanuel at hibernate.org> wrote:
> >
> >> 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 <emmanuel at 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
> >>>> _______________________________________________
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> >>>> hibernate-dev at lists.jboss.org
> >>>> https://lists.jboss.org/mailman/listinfo/hibernate-dev
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