geocouch with 3rd dimension

[Matthew <de...@rhus.winterroot.net>]

Greetings!

What's the usual way to handle spatial queries where you also want to filter results by an additional dimension?  geocouch is only 2d, so is doing so in a the spatial list function the only option?  Since this means touching every record in the result set, are there any performance implications?

Thanks,
Matthew

Re: geocouch with 3rd dimension

[Simon Metson <si...@cloudant.com>]

You could use couchdb-lucene to do an N dimensional query. Filtering stuff out in a list is generally not very efficient because the result isn't cached for subsequent queries, and if your filter is sparse you may find queries are slow as you do a lot of work before being able to respond to the client. 
Cheers
Simon


On Saturday, 2 June 2012 at 00:47, Matthew wrote:

> Greetings!
> 
> What's the usual way to handle spatial queries where you also want to filter results by an additional dimension? geocouch is only 2d, so is doing so in a the spatial list function the only option? Since this means touching every record in the result set, are there any performance implications?
> 
> Thanks,
> Matthew
> 
>