[postgis-tickets] [PostGIS] #4893: Topology Exception on st_intersection

[PostGIS]

#4893: Topology Exception on st_intersection
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  Reporter:  mlt35       |      Owner:  pramsey
      Type:  defect      |     Status:  new
  Priority:  medium      |  Milestone:  PostGIS 3.1.2
 Component:  postgis     |    Version:  3.1.x
Resolution:              |   Keywords:  Geos Error, Topology Exception,
                         |  lwgeom_intersection_prec
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Comment (by mdavis):

 JTS reports the first geometry as invalid, due to the two element polygons
 overlapping.  This is visually obvious (see attached image).

 So the next question is why is this polygon being reported as valid by
 GEOS?

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4893#comment:2>
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