I have no idea what it would take to truly implement rasters in postgis
but I've been lurking on this whole debate and I have two major
questions:<br>
<br>
1. If you're going to run any useful SQL, your "atomic unit" has got to
be a single "cell", correct? What
are the disk space costs of doing this? I can imagine storing each cell
of 16-bit tiff as a row in my "raster table" would take massive amounts
of disk space and be painfully slow to access. <br>
<br>
2. When selecting a raster what format would it return? There's no
WKT/GML/WKB equivalent in the raster world. You'd have to pick a binary
format but which one? <br>
<br clear="all">Personally I'll just use GDAL (can r/w any number of
raster formats) along with OGR (can read/write postgis) along with
python to script my raster/postgis alogrithms.<br>
<br>-- <br>Matt Perry<br><a href="mailto:perrygeo@gmail.com">
perrygeo@gmail.com</a><br><a href="http://www.perrygeo.net">http://www.perrygeo.net</a>