id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
428	Add ST_IsValid for PolyhedralSurface	colivier	colivier	"
Need to check:
- At least 4 faces
- Faces must all be connected
- All points from a same face must be coplanar
- Resulting volume is closed
- No self intersection
- Points Orientation

No GEOS related in implementation"	enhancement	new	medium	PostGIS Future	postgis	trunk		PolyhedralSurface 3D IsValid