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From Chris Atkinson <>
Subject Solr GeoHash Field (Solr 4.5)
Date Thu, 29 May 2014 08:18:37 GMT

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

I'm running Solr 4.5. I've seen this..
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

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
> The main feature is
> multi-valued field support.

 Does this mean that there isn't any way to use GeoHash with my version of

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).


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