Re: [PERFORM] insert performance for win32

On Fri, Nov 04, 2005 at 01:01:20PM -0500, Tom Lane wrote:
> "Merlin Moncure" <merlin(dot)moncure(at)rcsonline(dot)com> 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.

Ouch. In light of this, are we *sure* what we've got a is a candidate
for release?

Cheers,
D
--
David Fetter david(at)fetter(dot)org http://fetter.org/
phone: +1 510 893 6100 mobile: +1 415 235 3778

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