Hi David,
Many thanks - that's some great info - if I may pry though - why is the
spatial search of SOLR not as good as PostGIS (as I don't know SOLR much I
don't know what to expect :) ) - I presume it's along the lines of PG has
better spatial indexes (indicies?)?
If so, that pretty much answers my question; that there is very little
point in trying to replace my PG with a SOLR backend for WMS rendering
purposes. Would that be a right assumption?
Thanks again,
Ramo
On 11 March 2015 at 22:31, David Collins <david.8.coll...@gmail.com> wrote:
> Hello, Ramo.
>
> Andre Aime is more expert than me, but I can tell you a few things.
>
> Yes, the spatial data does need to be stored in SOLR as a WKT string.
> SOLR has its own spatial search capability and this capability is utilized
> by the SOLR module.
> If you can get your shapes/points into PostGIS, you should be able to
> create the WKT strings fairly easily -
> http://postgis.refractions.net/documentation/manual-1.4/ST_AsText.html
>
> The performance of the spatial search in SOLR is not as good as in PostGIS
> - as you probably would expect - but it is still quite good.
>
> The main idea of the module is to be able to plot the results of any 'q',
> 'fq' search in a SOLR store - ie. run very powerful text-based searches -
> and then plot the results efficiently - particularly important if your
> search is returning large numbers of results.
>
> Regards,
> David Collins
> Geological Survey of NSW, Australia.
>
>
> On Wed, Mar 11, 2015 at 8:55 PM, Tobias Reinicke <ramot...@gmail.com>
> wrote:
>
>> Hello all,
>>
>> I see that there is a SOLR backend community module available to use,
>> which I find quite interesting and was wondering two things;
>> How does the performance compare between SOLR and say Postgres/gis?
>> How do I load GML into SOLR?
>>
>> I've been looking at
>> https://cwiki.apache.org/confluence/display/solr/Spatial+Search and it
>> says to use WKT - is that really the best way of doing things?
>>
>> Any help would be much appreciated.
>>
>> Regards,
>> Ramo
>>
>>
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