> OK, it seems ST_Transform is working for me, but I'm a bit confused about the
> "raster_columns" table. The original (pre-transform) raster table is a set of 
> 187
> tiles.  In raster_columns 'scale_x', 'scale_y', 'blocksize_x', 'blocksize_y' 
> are all
> defined, and 'same_alignment'=t.
> Then when I run AddRasterConstraints(output_table, 'rast'), these value are
> either null or f.  Do I need to do anything else to use the reprojected data, 
> like
> re-tile it or something?

What if you display their extents (rast::geometry) in OpenJump or another 
display tool? Do they align properly?

Are the scalex and scaley, just to mention them, identical for every tile?

Pierre
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