Jan Kowalski <jk@xxxxxxxxxxxxx> writes: > I've strange problem with Pyramid application working with postgresql > over psycopg2. > After some period of operation, my application insert new row to one of > tables with the message: > ERROR: permission denied for relation ... > After restart of application, it starts to work properly again. Couple of possible ideas: * something in your app sometimes issues SET ROLE or SET SESSION AUTHORIZATION. * you're using a connection pooler and it sometimes reconnects you to a connection with the wrong user ID. Neither of these seem terribly likely, but whatever it is has to be weird ... regards, tom lane