<pre>I'm trying to use v.external to access vector data in the postgres/postgis database. I used shp2pgsql to load the data into the database. When I attempt to access this data, in GRASS, using v.external I get the following message:<br>
<br>"Random read is not supported by OGR for this layer"<br><br>I do not think this is a problem with OGR, because I use OGR to access postgres/postgis database, with MapServer and don't have this problem. It may not be doing the same thing a v.external, but it is similar. I can also switch the database from dbg to a merror pg database with GRASS. I'm only having problems accessing vector data in postgres, using v.external. Could it be a problem with the vector data I produce with shp2pgsql? It stores the vector data in a column named the_geom. Possibly it is looking for another column name? I'm not able to specify the column name in the v.external.<br>
<br>Thanks<br>Jim<br><br><br></pre>