I saw a presentation from Heroku where they discussed using a similar paradigm, and they ran into trouble once they hit a couple thousand databases. If memory serves, this was on an older version of PostgreSQL and may not be relevant with 9.0 (or even 8.4?), but you may want to try to track down one of their developers (maybe through their mailing lists or forums?) and check. --- Maciek Sakrejda | System Architect | Truviso 1065 E. Hillsdale Blvd., Suite 215 Foster City, CA 94404 (650) 242-3500 Main www.truviso.com -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance