[postgis-tickets] [PostGIS] #3422: test_lwgeom_split fails on various architectures

[PostGIS]

#3422: test_lwgeom_split fails on various architectures
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  Reporter:  sebastic  |      Owner:  pramsey
      Type:  defect    |     Status:  reopened
  Priority:  medium    |  Milestone:  PostGIS 2.2.2
 Component:  postgis   |    Version:  2.2.x
Resolution:            |   Keywords:
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Changes (by strk):

 * status:  closed => reopened
 * resolution:  fixed =>


Comment:

 The tests _are_ related. Robustness issues in lwgeom_split were found to
 be the cause for corrupting topology, so rather than hiding the failure in
 the C library, we should keep it exposed and try to fix it instead.

 The correct solution would be to keep the split point as a vertex, rather
 than re-projecting it, when found to be already ON the segment.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3422#comment:13>
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