[postgis-devel] [PostGIS] #526: Define alias ST_Perimeter (for geography ST_Length)

[PostGIS]

#526: Define alias ST_Perimeter (for geography ST_Length)
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 Reporter:  robe     |       Owner:  pramsey      
     Type:  defect   |      Status:  new          
 Priority:  medium   |   Milestone:  PostGIS 2.0.0
Component:  postgis  |     Version:  trunk        
 Keywords:           |  
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 Okay this inconsistency I mentioned in #266 is irking me a bit.  Can we
 PLEASE have an ST_Perimeter alias for geography tha tmaps to ST_Length.  I
 know ST_Length returns the perimeter for a geography polygon but who is
 supposed to remember that?

 Right now our geometry ST_Length returns 0 for polygon and people need to
 use ST_Perimeter.  For geography you have to use ST_Length for both
 polygon and line strings.  We could probably allow people to use ST_Length
 for geometry polygon if they want to as that is less of a breaking change
 than removing that feature in ST_Length geography.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/526>
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