[postgis-tickets] [PostGIS] #1973: st_concavehull() returns sometimes empty geometry collection

[PostGIS]

#1973: st_concavehull() returns sometimes empty geometry collection
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  Reporter:  tolke       |      Owner:  robe
      Type:  defect      |     Status:  new
  Priority:  medium      |  Milestone:  PostGIS Future
 Component:  postgis     |    Version:  2.0.x
Resolution:              |   Keywords:  concave hull st_concavehull
                         |  points_as_polygon
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Comment (by gde):

 The issue comes from the 1/scale_factor applied to ST_Scale with
 scale_factor integer in the _st_concavehull() function.

 A fix would be to replace scale_factor integer := 1; by scale_factor float
 := 1;

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/1973#comment:4>
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