[postgis-tickets] [PostGIS] #5268: ST_ShortestLine return invalid linestring when distance of geometries is 0

[PostGIS]

#5268: ST_ShortestLine return invalid linestring when distance of geometries is 0
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  Reporter:  latot    |      Owner:  pramsey
      Type:  defect   |     Status:  new
  Priority:  medium   |  Milestone:  PostGIS 3.4.0
 Component:  postgis  |    Version:  3.3.x
Resolution:           |   Keywords:
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Comment (by mdavis):

 To my mind returning a zero-length LineString makes perfect sense in this
 situation.  So the real problem is whether zero-length LineStrings should
 be invalid.  The Simple Features spec appears to mandate this - but
 perhaps it's not entirely clear, or is simply not well-thought out in
 light of practical usage.
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Ticket URL: <https://trac.osgeo.org/postgis/ticket/5268#comment:5>
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