[postgis-tickets] [PostGIS] #2143: [raster] Width and Height column of raster_columns view may need changing

[PostGIS]

#2143: [raster] Width and Height column of raster_columns view may need changing
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 Reporter:  dustymugs    |       Owner:  dustymugs    
     Type:  enhancement  |      Status:  new          
 Priority:  medium       |   Milestone:  PostGIS 2.1.0
Component:  raster       |     Version:  trunk        
 Keywords:               |  
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Comment(by dustymugs):

 After more thinking, the width and height constraints should be kept
 simple.  Using something like the example provided is no longer just a
 width constraint but rather a two part constraint, a width AND whether or
 not the tile is part of a coverage.

 {{{
 ALTER TABLE schemaname.tablename ADD CONSTRAINT enforce_width_tablename
 CHECK (st_width(rast) = width AND (st_upperleft(x) !=
 st_rastertoworldcoordx(rasterizedextent, st_width(rasterrisedextent) - 1,
 1)))
 }}}

 Ensuring that a tile is part of a coverage should be a separate
 constraint.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2143#comment:6>
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