[postgis-devel] [PostGIS] #2024: raster: ST_Union is buggy

PostGIS trac at osgeo.org
Tue Oct 2 21:42:30 PDT 2012

#2024: raster: ST_Union is buggy
 Reporter:  robe     |       Owner:  dustymugs    
     Type:  defect   |      Status:  new          
 Priority:  blocker  |   Milestone:  PostGIS 2.1.0
Component:  raster   |     Version:  trunk        
 Keywords:           |  

Comment(by dustymugs):

 Oh.  Can you try...

 SELECT ST_Union(rast,ARRAY[ROW(1, 'LAST'), ROW(2, 'LAST'), ROW(3,
 FROM test_100_100
 WHERE ST_Intersects(rast,  ST_GeomFromText('LINESTRING(230486.436 886271,
 230486.437 887771)',26986) );

 I noticed that the above is faster than using the ST_AddBand() array

Ticket URL: <http://trac.osgeo.org/postgis/ticket/2024#comment:7>
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