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From: Michael Banck <[email protected]>
To: Ron Johnson <[email protected]>
Cc: Pgsql-admin <[email protected]>
Subject: Re: About asynchronous I/O
Date: Tue, 23 Jun 2026 16:19:57 +0200
Message-ID: <[email protected];lightning.p46.dedyn.io> (raw)
In-Reply-To: <CANzqJaBKR6YdqWLE85wZiE2EC5sw8xRoVj+9=Lhn+zF2ukSqFA@mail.gmail.com>
References: <CALAkhNX_6OttLJa7X+0wA7vx+wVCUMHjNcgg+2fjw=_Z3CXTKg@mail.gmail.com>
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On Tue, Jun 23, 2026 at 10:05:42AM -0400, Ron Johnson wrote:
> On Tue, Jun 23, 2026 at 9:59 AM Scott Ribe <[email protected]>
> wrote:
> > On Jun 23, 2026, at 7:04 AM, JOHN WIENCEK <[email protected]> wrote:
> > > Can your application assume the risk of lost transactions in the event
> > of a database crash?
> >
> > Pretty sure that's not a risk here...
> 
> Because WAL writing is sync io?

That, and because AIO is read-only in Postgres so far (including in the
upcoming PG19).


Michael

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