[postgis-devel] [PostGIS] #806: Optimize Geometry(TopoGeometry) for polygons

[PostGIS]

#806: Optimize Geometry(TopoGeometry) for polygons
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 Reporter:  strk         |       Owner:  strk         
     Type:  enhancement  |      Status:  new          
 Priority:  medium       |   Milestone:  PostGIS 2.0.0
Component:  topology     |     Version:  trunk        
 Keywords:               |  
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 Current TopoGeometry::Geometry cast makes an ST_Union of the geometry
 obtained with each face. Instead, it could apply the BuildArea directly on
 the set of edges referencing all the faces composing the TopoGeometry.

 In addition to skip the union and passing everything to BuildArea we'd
 have another advantage in that we could skip edges having one of the
 TopoGeometry faces on _both_ sides as those edges would dissolve in the
 output anyway.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/806>
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