[postgis-users] integrated EMPTY GeometryCollections to postgis (in CVS)

[Frank Warmerdam]

David Blasby wrote:
> MULTIPOINT(EMPTY)
> MULTILINESTRING(EMPTY)
> MULTIPOLYGON(EMPTY)
> GEOMETRYCOLLECTION(EMPTY)
> 
> These are [almost] fully integrated into PostGIS now.
> + WKT in/out
> + WKB in/out
> + GEOS conversion in/out
> + Indexable
> + collect()
> 
> There are a few "weird" cases I need to look at before they're fully 
> integrated.
> 
> These were added for compliance with the OGC spec.

Dave,

I hadn't heard of this before.  Where would I find this documented?  (which
simple features spec)  Is there anything special about empty WKB collections?

I would like to incorporate proper support for this in OGR.

Best regards,

-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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