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List:       postgis-users
Subject:    Re: [postgis-users] 3d index in postgis
From:       searchelite <searchelite () gmail ! com>
Date:       2008-08-27 5:03:39
Message-ID: 19174734.post () talk ! nabble ! com
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Kevin Neufeld wrote:
> 
> Indexes in PostGIS are 2D only.  In other words, an gist index on a 3D 
> geometry column will only use the first 2 dimensions of the geometries 
> (equal geometries in 2D, but varying in the 3rd dimension, are treated 
> the same).
> 
> Having said that, you probably can get 3D index support by way of the 
> PostgreSQL module cube.
> http://www.postgresql.org/docs/8.3/static/cube.html
> 

Thanks for the info..I'll try the module first :-)

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