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From Brian Sam-Bodden <bsbod...@integrallis.com>
Subject Re: Using Cassandra for geospacial search
Date Mon, 26 Jan 2015 18:42:46 GMT
I did an little experiment with a Geohash/Geocells
https://github.com/integrallis/geomodel (a poor port of a Python Geohash
librairy) and using Cassandra in a demo using public schools data here
https://github.com/integrallis/geomodel-cassandra-demo

My conclusions is that you can use the Geohash natural lexicographic
ordering with Cassandra partition keys to do range queries and also
simulate radius searches, but to make it work I had to do some goofy amount
of data replication. I'll go back to it and refactor when I have time to
see if I can improve the whole thing.

Adding a regular search engine into the equation might help, I was also
thinking of using C* Triggers to do the data replication needed for the
searchers.

Cheers,
Brian
http://integrallis.cm

On Mon, Jan 26, 2015 at 11:27 AM, SEGALIS Morgan <msegalis@gmail.com> wrote:

> The news I guess would be to have it for free. I do not use commercial
> versions. I wasn't aware of it though.
>
> Le lundi 26 janvier 2015, Robert Coli <rcoli@eventbrite.com> a écrit :
>
> On Mon, Jan 26, 2015 at 9:29 AM, SEGALIS Morgan <msegalis@gmail.com>
>> wrote:
>>
>>> That's actually GREAT news !! + Solr will give a lot of feature to
>>> Cassandra !
>>>
>>> But while waiting for this huge feature (and wanted for a lot of users I
>>> guess)
>>>
>>
>> What's the "news" here?
>>
>> Datastax commercial edition of Cassandra has had support for SOLR
>> integration for some time. But only in the commercial version.
>>
>> =Rob
>>
>>
>
>
> --
> Morgan SEGALIS
>
>

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