[postgis-devel] [PostGIS] #2083: ST_RemEdgeModFace performance review

PostGIS trac at osgeo.org
Tue Nov 6 00:33:57 PST 2012

#2083: ST_RemEdgeModFace performance review
 Reporter:  strk         |       Owner:  strk         
     Type:  enhancement  |      Status:  new          
 Priority:  medium       |   Milestone:  PostGIS 2.1.0
Component:  topology     |     Version:  2.0.x        
 Keywords:               |  

Comment(by strk):

 Supporting changes to higher TopoGeometry objects would require a more
 complex set of parameters because there are different things you may want
 to do. In particular, assuming there are only two non-overlapping
 TopoGeometry objects separated by the edge you're about to remove you may
 want to either destroy one of the two TopoGeom and make the other take the
 whole space (which one, in that case?) or you may want both TopoGeoms to
 take the whole space , or you may want to destroy both.

 This ticket is for improving the performance, if you have ideas on
 semantic changes it is better to discuss them elsewhere.

 I do feel the limit imposed by TopoGeometries, but I consider it a
 safeguard. What's really needed now, IMHO, are easy TopoGeometry editing
 function (addElement/dropElement).

Ticket URL: <http://trac.osgeo.org/postgis/ticket/2083#comment:3>
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