[postgis-users] Unknown geometry type: 12 - MultiSurface

Mike Toews mwtoews at gmail.com
Sun Apr 23 19:31:54 PDT 2017

The list of functions that are supported for polyhedral surface
geometries are documented for PostGIS 2.2 here:

So, for instance, try replacing ST_Intersects with ST_3DIntersects,
and your example should work.

Many of the functions were written before curve support, which is why
you may see a generic-looking "unknown geometry type" error.

On 22 April 2017 at 06:59, James Klassen <klassen.js at gmail.com> wrote:
> I have been getting "ERROR: Unknown geometry type: 12 - MultiSurface" on
> some operations since importing a File GeoDatabase containing curved
> geometries into PostGIS using a recent OGR (2.2.0dev trunk at 37918).  Using
> ST_CurveToLine(geom) instead or the original curved geometry is a work
> around, but it would be desirable to directly use the original geometry if
> possible.  Is this the expected behavior?
> I am running PostgreSQL 9.5.5/PostGIS 2.2.2 from
> http://apt.postgresql.org/pub/repos/apt/ on Ubuntu 12.04.
> It is unclear to me from the documentation if Curved geometries are
> generally supported or only with a few specific functions.  I have found
> some references to "Unknown geometry type" errors from long ago that
> reference closed tickets against PostGIS 1.x and a Stack Exchange question
> "Smallworld > FME > PostGIS > QGIS" that seems similar but different.

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