Tom Lane <tgl@sss.pgh.pa.us> writes:
> Alvaro Herrera <alvherre@dcc.uchile.cl> writes:
> > On Fri, Apr 01, 2005 at 10:14:07PM -0500, Paul Tillotson wrote:
> >> ...
>
> > Well, at that point you need to take a lock in order to be able to
> > manage locks. Managing not to step on your own feet in that scenario
> > is complex, to say the least, if not downright impossible.
>
> I looked at Paul's first message and thought "nah, that won't work
> because ... because ... hmm ... hmmm ..."
For what it's worth, this would be very similar to how Oracle handles such
locks. In that case there's a fixed amount of space per page reserved in
advance for storing locks.
Actually I think it's a bit more complicated. But that's the idea.
--
greg
