On Thu, Jul 20, 2017 at 8:27 AM, Fabrízio de Royes Mello <fabriziome...@gmail.com> wrote: > I'm not sure your real needs but doesn't it material for improve Event > Triggers???
I've thought about that, too. One problem is what to do if the user hits ^C while the event trigger procedure is running. If you respond to that by killing the event trigger and letting the user issue commands, then the event trigger can't be used for security or auditing purposes because the user might prevent it from doing whatever it's intended to do with a well-timed interrupt. If you ignore ^C or make it turn into FATAL, then a poorly-crafted trigger can lock users out of the database. Maybe that's OK. We could say "well, if you lock yourself out of the database with your logon trigger, you get to shut down the database and restart in single user mode to recover". A hook, as proposed here, is a lot simpler and lacks these concerns. Installing code in C into the database is intrinsically risky anywhere, and not any moreso here than elsewhere. But it's also less accessible to the average user. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers