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

PostGIS trac at osgeo.org
Mon Feb 14 05:26:03 PST 2011


#830: ST_UnaryUnion
-------------------------+--------------------------------------------------
 Reporter:  strk         |       Owner:  strk         
     Type:  enhancement  |      Status:  new          
 Priority:  medium       |   Milestone:  PostGIS 2.0.0
Component:  postgis      |     Version:               
 Keywords:               |  
-------------------------+--------------------------------------------------
 The function accepts any GEOS-convertible geometry and applies an unary
 union on it. This functionality currently requires unioning anything with
 the empty set as ST_Union contains a short-circuit refusing to do self-
 union.

 The union is optimized for the polygonal part of collections (which is
 currently impossible to get with the ST_Union aggregate).

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/830>
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