[postgis-devel] [PostGIS] #1364: [raster] Make ST_Union a c-implementation and also handle multiple bands

[PostGIS]

#1364: [raster] Make ST_Union a c-implementation and also handle multiple bands
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 Reporter:  robe            |       Owner:  pracine              
     Type:  task            |      Status:  new                  
 Priority:  medium          |   Milestone:  PostGIS Raster Future
Component:  postgis raster  |     Version:  trunk                
 Keywords:                  |  
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Comment(by dustymugs):

 Multiband ST_Union would be nice but we're not going to have significant
 performance gains until I rewrite the C 2-raster MapAlgebra.

 7 permutations without a band parameter?  Does all versions work on all
 bands?

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/1364#comment:2>
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