I'm using 7.1.1, and your suggestion WORKED!
Thanks for your prompt reply!
Refractions Research will be releasing (open source) "postGIS" very soon
(as soon as its in a releasable state).
It will contain GIS data types (box3d, multi-point3d, multi-polyline3d,
multi-complex-polygon3d) and GIS operations.
Tom Lane wrote:
...
> First question: what Postgres version?
>
> Next question (if PG >= 7.0): did you mark your type conversion routine
> as cachable?