> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > No spinlock. I was going to just grab a snapshot as it existed. If it
> > changes while I am grabbing it, I just try again.
>
> Unless, of course, you follow a now-dangling pointer and cause a backend
> crash. But even without that, how do you know whether you grabbed a
> self-consistent snapshot or not?
Not sure, yet...
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