[postgis-users] 3d index in postgis
searchelite
searchelite at gmail.com
Tue Aug 26 22:03:39 PDT 2008
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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