[postgis-devel] [PostGIS] #830: ST_UnaryUnion

[PostGIS]

#830: ST_UnaryUnion
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 Reporter:  strk         |       Owner:  strk         
     Type:  enhancement  |      Status:  new          
 Priority:  medium       |   Milestone:  PostGIS 2.0.0
Component:  postgis      |     Version:               
 Keywords:               |  
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Comment(by strk):

 Oh, about the equivalence between UnaryUnion(collect(g)) and Union(g):
 when the input is an invalid MultiPolygon there's no equivalence.
 UnaryUnion returns it dissolved while Union returns it untouched. This was
 one of the reason to implement this in the first place.

 See also ticket #101 for an old discussion about it.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/830#comment:3>
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