Yurii Rashkovskii <yra...@gmail.com> writes: > I would like to suggest a patch against master (although it may be worth > backporting it) that makes it possible to listen on any unused port.
I think this is a bad idea, mainly because this: > Instead, with this patch, one can specify `port` as `0` (the "wildcard" > port) and retrieve the assigned port from postmaster.pid is a horrid way to find out what was picked, and yet there could be no other. Our existing design for this sort of thing is to let the testing framework choose the port, and I don't really see what's wrong with that approach. Yes, I know it's theoretically subject to race conditions, but that hasn't seemed to be a problem in practice. It's especially not a problem given that modern testing practice tends to not open any TCP port at all, just a Unix socket in a test-private directory, so that port conflicts are a non-issue. regards, tom lane