Joshua Kramer <josh@xxxxxxxxxxxxxx> writes: > I am writing a couple of Perl modules that talk to the outside world: one > talks to a database (via DBI), and one talks to a Jabber/XMPP server. I > want to use these from within a Trigger. This is most likely a bad idea for reasons that have nothing to do with security. Consider what happens when the trigger executes and later in the transaction there's an error, causing the whole transaction to roll back. Now the outside world has changed state and your database has not. It's usually better to have an application process that is in charge of monitoring database state and updating external stuff to match. See the archives for many previous discussions of this point. regards, tom lane
