I am trying to get my head around what causes catalog corruption. I have posted before with regard to recovering from corruptions (if that is what indeed happened to me), and was given much help. Does anyone know why a database catalog will get corrupted? As I mentioned previously, my db involves considerable use of temporary tables created by php-psql connections. Other than that, I don't know of too much that is "odd" about my use (misuse) of the database. Thanks, r.b. Robert W. Burgholzer Surface Water Modeler Office of Water Supply and Planning Virginia Department of Environmental Quality rwburgholzer@xxxxxxxxxxxxxxxx 804-698-4405 Open Source Modeling Tools: http://sourceforge.net/projects/npsource/ -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin