[postgis-devel] [PostGIS] #2007: topogeo_addlinestring: behaviour depends on query order (error - geometry intersects edge)

[PostGIS]

#2007: topogeo_addlinestring: behaviour depends on query order (error - geometry
intersects edge)
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 Reporter:  amartin            |       Owner:  strk         
     Type:  defect             |      Status:  new          
 Priority:  medium             |   Milestone:  PostGIS 2.0.2
Component:  topology           |     Version:  2.0.x        
 Keywords:  linestring, order  |  
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Comment(by strk):

 The fact that query order affects result is not a bug, but a well known
 behavior.
 Incremental construction of the topology tries to keep the elements which
 were inserted before as immutable as possible, while is more liberal about
 modifying (snapping, for instance) the items inserted later.

 The "geometry intersects edge", on the other hand, is a bug.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2007#comment:1>
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