[postgis-devel] collect()

[strk at refractions.net]

On Mon, Sep 27, 2004 at 08:57:59AM -0700, Paul Ramsey wrote:
> Erm, that is a change in semantics that might cause some pain in the 
> downline of dependant programs... what's the rationale?

I've read on this mailing list that some programs use
nested geometries with known semantics (asGML thread).
LWGEOM supports nested collection construction from WKT/WKB
but sometimes transparently flatten them (GEOS output, collect()).
Allowing user to decide this seems a good thing.

--strk;

> 
> strk at refractions.net wrote:
> 
> >Current (OLD) collect() function flatten geometries.
> >Should NEW collect() also do this or instead have a
> >flatten(the_geom) taking care of this ?
> >(I opt for the second)
> >--strk;
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