| From: | Stephen Frost <sfrost(at)snowman(dot)net> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Bruce Momjian <bruce(at)momjian(dot)us>, Andres Freund <andres(at)anarazel(dot)de>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Antonin Houska <ah(at)cybertec(dot)at>, Ants Aasma <ants(at)cybertec(dot)at>, Sasasu <i(at)sasa(dot)su> |
| Subject: | Re: storing an explicit nonce |
| Date: | 2021-10-07 18:45:03 |
| Message-ID: | 20211007184502.GI20998@tamriel.snowman.net |
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| Lists: | pgsql-hackers |
Greetings,
* Robert Haas (robertmhaas(at)gmail(dot)com) wrote:
> On Thu, Oct 7, 2021 at 12:56 PM Bruce Momjian <bruce(at)momjian(dot)us> wrote:
> > Uh, do backups get torn and later used?
>
> Yep. That's why base backup mode forces full_page_writes on
> temporarily even if it's off in general.
Right, so this shouldn't be an issue as any such torn pages will have
an FPI in the WAL that will be replayed as part of restoring that
backup.
Thanks,
Stephen
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