Joan,

The ST_HillShade function does not support tiled coverage...

Depending on how big is your coverage (how many pixels by how many pixels) you 
could import it non tiled and then use ST_Tile to tile in the DB. 

ST_Tile is not part of PostGIS 2.0. You will find it here:

http://trac.osgeo.org/postgis/browser/trunk/raster/scripts/plpgsql/st_tile.sql

Pierre

> -----Original Message-----
> From: postgis-users-boun...@postgis.refractions.net [mailto:postgis-users-
> boun...@postgis.refractions.net] On Behalf Of Joan
> Sent: Thursday, May 31, 2012 11:53 AM
> To: PostGIS Users Discussion
> Subject: [postgis-users] spaces between tiles
> 
> Hi guys,
> 
> I have just run the st_hillshade function. A row of pixels around the 
> resulting
> raster are missing, causing spaces between tiles.
> 
> What could be the problem?
> 
> Regards
> 
> Joan
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