Ahhh... i figured there might something out there... thanks Andrea. I
am definitely not tied to hints. I'll explore the UniqueVisitor approach
and report back. Thanks folks!
On Wed, Apr 24, 2013 at 8:34 AM, Andrea Aime
<[email protected]>wrote:
> On Tue, Apr 23, 2013 at 10:40 PM, Justin Deoliveira
> <[email protected]>wrote:
>
>> Hi all,
>>
>> Recently a client of ours forwarded along an initial patch that added
>> support for a query hint to do "distinct" queries. In this context
>> "distinct" implies the same semantics as the "distinct" keyword as
>> supported by most relational databases. The end use case of which is to
>> make GeoServer WMS capabilities generation more efficient with regard to
>> dimensions, and calculating the distinct values of a time / elevation /
>> custom dimension.
>>
>
> Wondering, what about the UniqueVisitor, isn't that already running
> distinct?
> I'd like to understand how what you're proposing is different,
> and whether maybe it could be served by another visitor that gets
> recognized by the JDBC.
> Not that hints is wrong, but I'm wondering if we can get the result with
> something that we already have, or with something very similar to what we
> already have.
>
> Cheers
> Andrea
>
>
> --
> ==
> GeoServer training in Milan, 6th & 7th June 2013! Visit
> http://geoserver.geo-solutions.it for more information.
> ==
>
> Ing. Andrea Aime
> @geowolf
> Technical Lead
>
> GeoSolutions S.A.S.
> Via Poggio alle Viti 1187
> 55054 Massarosa (LU)
> Italy
> phone: +39 0584 962313
> fax: +39 0584 1660272
> mob: +39 339 8844549
>
> http://www.geo-solutions.it
> http://twitter.com/geosolutions_it
>
> -------------------------------------------------------
>
--
Justin Deoliveira
OpenGeo - http://opengeo.org
Enterprise support for open source geospatial.
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