[PostGIS] #6129: Missing area with topology.ST_GetFaceGeometry('arstat_2026_overlay_02_348',101383), but alle edges seems to be prensent

PostGIS trac at osgeo.org
Tue Sep 29 06:41:08 PDT 2026


#6129: Missing area with
topology.ST_GetFaceGeometry('arstat_2026_overlay_02_348',101383), but alle
edges seems to be prensent
--------------------------------+---------------------------
  Reporter:  Lars Aksel Opsahl  |      Owner:  strk
      Type:  defect             |     Status:  new
  Priority:  medium             |  Milestone:  PostGIS 3.6.5
 Component:  topology           |    Version:  3.6.x
Resolution:                     |   Keywords:
--------------------------------+---------------------------
Comment (by strk):

 So it turns out the two edges of the topology (part of the outer ring of
 the face which we can't build a geometry) have an interior/interior
 intersection but ValidateTopology isn't able to tell.

 Current ValidateTopology uses ST_Relate to tell if there's an
 interior/interior intersection, but that function is unable to spot this
 case as reported in #6137
-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/6129#comment:23>
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