[postgis-tickets] [PostGIS] #4758: ERROR: XX000: SQL/MM Spatial exception - geometry crosses edge 2, LOCATION: pg_error, lwgeom_pg.c:250

[PostGIS]

#4758: ERROR:  XX000: SQL/MM Spatial exception - geometry crosses edge 2,
LOCATION:  pg_error, lwgeom_pg.c:250
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  Reporter:  laopsahl  |      Owner:  strk
      Type:  defect    |     Status:  assigned
  Priority:  blocker   |  Milestone:  PostGIS 3.1.0
 Component:  topology  |    Version:  3.0.x
Resolution:            |   Keywords:
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Comment (by strk):

 Upon trying to make the patch official I'm even less convinced about the
 patch.
 The thing is that at that point in code we're expecting the input line to
 have been fully noded, but this is NOT the case. This is the problem. I'm
 not even sure the edge should not be touched, in that vertices have more
 importance over lines, because vertices are what you survey, not lines, so
 if a measurement finds a points in a place, that's more likely to exist
 there.
 In the case above, attracting the line to the vertex would make the more
 sense to me. Not an easy task to deal with, as it requires implementing
 merge of edges...

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4758#comment:11>
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