On Mon, Nov 25, 2013 at 02:52:37PM +0100, franco base wrote: > Infact : > ST_srid(geom) ---- give 3003 > ST_srid ((ST_DumpPoints(geom)).geom) ---give 0 Sounds like a bug. Could you please file it on http://trac.osgeo.org/postgis ? Account is created here: http://www.osgeo.org/osgeo_userid/ Thanks in advance ! --strk;