[postgis-tickets] [PostGIS] #3823: ST_MinimumBoundingCircle creates invalid geometries

[PostGIS]

#3823: ST_MinimumBoundingCircle creates invalid geometries
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  Reporter:  cswingle  |      Owner:  pramsey
      Type:  defect    |     Status:  new
  Priority:  medium    |  Milestone:  PostGIS 2.3.4
 Component:  postgis   |    Version:  2.3.x
Resolution:            |   Keywords:  ST_MinimumBoundingCircle
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Comment (by dbaston):

 Very helpful, thanks.  The computed radius of NaN is pretty suspect!

 This behavior isn't related to the dependent libraries, but it could
 conceivably vary from machine to machine based on the compiler used, etc.

 I'm guessing this has something to do with a the small number of
 coordinates and presence of a duplicate coordinate.

 As a workaround, I'm almost certain you'll see correct values if you wrap
 your inputs in {{{ST_UnaryUnion}}}.

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3823#comment:4>
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