On Thu, Apr 12, 2012 at 09:00:41PM +0200, Andrea Peri wrote:

> Is this allowed ?

I'm redrawing the schema for simplification.

You ask:
assuming there's a TopoGeometry T1 defined by F1,
is the following editing allowed ?

 +----+----+      +---------+
 |    |    |      |         |
 | F1 e F2 |  =>  |    F1   |
 |    |    |      |         |
 +----+----+      +---------+

No, because doing so would change the shape of T1.

--strk;

  ,------o-. 
  |   __/  |    Delivering high quality PostGIS 2.0 !
  |  / 2.0 |    http://strk.keybit.net - http://vizzuality.com
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