[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):

 Actually, I see that even using ST_Union(<something>, <empty>) is short-
 circuited, so it currently takes extraction of one point on the first
 geometry to compute a unary union.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/830#comment:1>
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