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From "david.w.smiley@gmail.com" <david.w.smi...@gmail.com>
Subject Re: Solr GeoHash Field (Solr 4.5)
Date Thu, 29 May 2014 16:50:51 GMT
On IRC you said you found out the answers before I came along.  For
everyone else’s benefit:

* Solr’s “documentation” is essentially the “Solr Reference Guide”. Only
look at the wiki as a secondary source.

* See “location_rpt” in the example schema.xml which supports multi-valued
spatial data.  It’s the evolution of SOLR-2155.

* For clustering, see: http://wiki.apache.org/solr/SpatialClustering

~ David Smiley
Freelance Apache Lucene/Solr Search Consultant/Developer
http://www.linkedin.com/in/davidwsmiley


On Thu, May 29, 2014 at 4:18 AM, Chris Atkinson <chrisacky@gmail.com> wrote:

> Hi,
>
> I've been reading up a lot on what David has written about GeoHash fields
> and would like to use them.
>
> I'm trying to create a nice way to display cluster counts of geo points on
> a google map. It's naturally not going to be possible to send 40k marker
> information over the wire to cluster... so figured GeoHash would be
> perfect.
>
> I'm running Solr 4.5. I've seen this..
> https://github.com/dsmiley/SOLR-2155
> Would this be what I use? It looks like it's really old, and I noticed that
> there is now a "solr.GeoHash" core field...
>
> However, if I check the documentation at this page
> https://wiki.apache.org/solr/SpatialSearchDev
>
> Solr includes a the field type "solr.GeoHashField" but it unfortunately
> > doesn't realize any of the intrinsic properties of the geohash to its
> > advantage. *You shouldn't use it.* Instead, check out
> > http://wiki.apache.org/solr/SpatialSearch#SOLR-2155. The main feature is
> > multi-valued field support.
>
>  Does this mean that there isn't any way to use GeoHash with my version of
> Solr?
>
> Should I just implement a multi value field andadd all of the multi value
> fields myself?
>
> (Also, can you confirm that for doing clustering, I'm on the right track
> for using GeoHash. I don't need anything perfect. I just want to be able to
> break up the markers into groups).
>
> Thanks
>

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