Greetings, * Robert Haas (robertmh...@gmail.com) wrote: > On Thu, Oct 7, 2021 at 12:26 PM Andres Freund <and...@anarazel.de> wrote: > > We rely on it today, e.g. for the control file. > > I think that's the only place, though. We can't rely on it for data > files because base backups don't go through shared buffers, so reads > and writes can get torn in memory and not just on sector boundaries.
There was a recent discussion with Munro, as I recall, that actually points out how we probably shouldn't be relying on that even for the control file and proposed having multiple control files (something which I generally agree with as a good idea), particularly due to SSD technology, as I recall. Thanks, Stephen
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