[postgis-tickets] [PostGIS] #2534: st_distance is returning incorrect results for large geographies

[PostGIS]

#2534: st_distance is returning incorrect results for large geographies
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 Reporter:  samuelb                 |       Owner:  pramsey      
     Type:  defect                  |      Status:  new          
 Priority:  medium                  |   Milestone:  PostGIS 2.1.1
Component:  postgis                 |     Version:  2.0.x        
 Keywords:  st_distance, geography  |  
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Comment(by samuelb):

 For the same polygon I also noticed that 0 is returned when a point is
 near the edge but on the outside of the polygon

 e.g.
 SELECT st_distance(st_geographyfromtext('POINT(-21.4 -21.4)'),
 st_geographyfromtext('POLYGON((-20 -20,-20 60,90 60,90 -20,-20 -20))'))

 SELECT st_distance(st_geographyfromtext('POINT(-21.4 61.8)'),
 st_geographyfromtext('POLYGON((-20 -20,-20 60,90 60,90 -20,-20 -20))'))

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2534#comment:2>
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