[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
----------------------------+-----------------------------------------------
 Reporter:  robe            |       Owner:  pracine              
     Type:  task            |      Status:  new                  
 Priority:  medium          |   Milestone:  PostGIS Raster Future
Component:  postgis raster  |     Version:  trunk                
 Keywords:                  |  
----------------------------+-----------------------------------------------

Comment(by robe):

 Actually we should probably think about how the ST_Union interface will
 change when we introduce multiband support since if a lot of people start
 using a particular construct, we can't just pull it out.

 I would have liked ST_Union(rast) to just union bands in parallel like I
 have above or an argument to denote that is the behavior you want with an
 array of numbers like ST_Band.  Perhabs something like a

 ST_Union(rast raster,band_nums integer[])

 But Pierre has 7 ST_Union aggregate permutations already none of which
 take a band number.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/1364#comment:1>
PostGIS <http://trac.osgeo.org/postgis/>
The PostGIS Trac is used for bug, enhancement & task tracking, a user and developer wiki, and a view into the subversion code repository of PostGIS project.