[postgis-tickets] [PostGIS] #2172: Attempt to add antarctica main body twice fails second time

[PostGIS]

#2172: Attempt to add antarctica main body twice fails second time
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 Reporter:  strk      |       Owner:  strk         
     Type:  defect    |      Status:  new          
 Priority:  medium    |   Milestone:  PostGIS 2.0.3
Component:  topology  |     Version:  2.0.x        
 Keywords:            |  
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Comment(by strk):

 In other words, assuming your closed linestring is put in a table called
 "offending" and a field called "geom", the following query returns FALSE:
 {{{
 select st_equals(
   geom,
   st_union(
     st_geometryn(st_split(geom, st_pointn(geom,745)), 1),
     st_geometryn(st_split(geom, st_pointn(geom,745)), 2)
   )
 ) from offending;
 }}}

 Note that we are passing a vertex point to ST_Split !

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2172#comment:3>
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