"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? I'm inclined to treat this as an outright bug, not just a minor performance issue, because it implies that a sufficiently long psql script would probably crash a Windows machine. regards, tom lane
