[postgis-devel] [PostGIS] #259: ST_Distance geography throws an error with empty geographies

[PostGIS]

#259: ST_Distance geography throws an error with empty geographies
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  Reporter:  robe     |       Owner:  pramsey      
      Type:  defect   |      Status:  new          
  Priority:  medium   |   Milestone:  postgis 1.5.0
 Component:  postgis  |     Version:               
Resolution:           |    Keywords:               
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Comment (by pramsey):

 Oh, the semantics of EMPTY, I love you so. So, distance(something, empty)
 == 0 in general? What about distance(empty, empty)? Same? Shouldn't
 distance(something, empty) return NULL? Or (heh, IEEE) NaN?

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/259#comment:1>
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