Just to add to this list, I have been using Postgresql to store data for multiple GPS applications handling more than 150-200 vehicles. Some of the tables that I have are running into 20 - 25 million rows at the max, and on average 10 million rows. I am yet to see a problem from the database side, although must admit that I receive data every 10 seconds from the devices. I am sure that optimizing the postgresql.conf files, and using postgis would be of great help down the road. With regards Amitabh -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general