On Wed, Jul 06, 2011 at 08:35:55PM -0400, Robert Haas wrote:
> On Wed, Jul 6, 2011 at 6:32 PM, Noah Misch <noah@2ndquadrant.com> wrote:
> > While a mere "LOCK bar.x" is sufficient to get a clean cutover with respect to
> > parsing, it fails to invalidate plans. To really cover all bases, you need
> > some no-op action that invalidates "bar.x". For actual practical use, I'd
> > recommend something like:
> >
> > BEGIN;
> > ALTER TABLE bar.x RENAME TO x0;
> > ALTER TABLE bar.x0 RENAME TO x;
> > CREATE TABLE foo.x ...
> > COMMIT;
> >
> > Probably worth making it more intuitive to DTRT here.
>
> Well, what would be really nice is if it just worked.
Yes.
> Care to submit an updated patch?
Attached. I made the counter 64 bits wide, handled the nothing-found case per
your idea, and improved a few comments cosmetically. I have not attempted to
improve the search_path interposition case. We can recommend the workaround
above, and doing better looks like an excursion much larger than the one
represented by this patch.
Thanks,
nm
