[postgis-tickets] [PostGIS] #4835: ST_Distance returning wrong results near the pole

[PostGIS]

#4835: ST_Distance returning wrong results near the pole
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  Reporter:  matthiasheuser  |      Owner:  pramsey
      Type:  defect          |     Status:  new
  Priority:  high            |  Milestone:  PostGIS 3.1.2
 Component:  postgis         |    Version:  3.1.x
Resolution:                  |   Keywords:
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Comment (by pramsey):

 I fear this is in general going to require a re-write of the core
 geographic routines, as the "solution" is jimmying with the tolerances to
 find particular very very very small dot-products to be zero or not.
 (Changed FP_TOLERANCE to 5e-14 in lwgeodetic.c)

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/4835#comment:1>
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