> "Merlin Moncure" <merlin.moncure@xxxxxxxxxxxxx> writes: > > Nailed it. > > > problem is in mainloop.c -> setup_cancel_handler. Apparently you can > > have multiple handlers and windows keeps track of them all, even if they > > do the same thing. Keeping track of so many system handles would > > naturally slow the whole process down. > > Yipes. So we really want to do that only once. > > AFAICS it is appropriate to move the sigsetjmp and setup_cancel_handler > calls in front of the per-line loop inside MainLoop --- can anyone see > a reason not to? hm. mainloop is re-entrant, right? That means each \i would reset the handler...what is downside to keeping global flag? > I'm inclined to treat this as an outright bug, not just a minor certainly... > performance issue, because it implies that a sufficiently long psql > script would probably crash a Windows machine. actually, it's worse than that, it's more of a dos on the whole system, as windows will eventually stop granting handles, but there is a good chance of side effects on other applications. Merlin
