Thank you, David.
I believe the field doesn't need to be multivalued.
Can you give me some idea how much query-time performance gain
we can expect by switching to LatLonType from Solr-2155?

On 11/06/2013 09:56 AM, Smiley, David W. wrote:
Hi Kuro,

I don't know of any benchmarks featuring distance-sort performance.

Presumably you are using SOLR-2155 because you have multi-valued spatial
fields?  If so, LatLonType is not an option.  SOLR-2155 sorting
performance is *probably* about the same as the equivalent in Solr 4 RPT.
If you actually do have single valued spatial to sort on, then definitely
don't use SOLR-2155 or RPT for that, use LatLonType.  It's surely faster
but I haven't measured it.

The best multi-valued distance sort option for Solr 4 is currently this:
https://issues.apache.org/jira/browse/SOLR-5170


~ David

On 11/5/13 1:36 PM, "T. Kuro Kurosaka" <k...@healthline.com> wrote:

Are there any performance comparison results available comparing various
methods
to sort result by distance (not just filtering) on Solr 3 and 4?

We are using Solr 3.5 with Solr-2155 patch. I am particularly interested
in learning
performance difference among Solr 3 LatLongType, Solr-2155 GeoHash,
Solr 4 implementation of GeoHash and Solr 4's
SpatialRecursivePrefixTreeFieldType
(location_rpt).

I see comparison of Solr 3 LatLongType vs Solr-2155
3.6.2-work/example/solr/conf/
but it is 2 years old.

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T. "Kuro" Kurosaka € Senior Software Engineer
Healthline Networks, Inc. € Connect to Better Health
www.healthline.com



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