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From: Xuneng Zhou <[email protected]>
To: Bertrand Drouvot <[email protected]>
To: Hayato Kuroda (Fujitsu) <[email protected]>
Cc: Alexander Lakhin <[email protected]>
Cc: pgsql-hackers <[email protected]>
Subject: Re: t/035_standby_logical_decoding.pl might fail on attempt to read wrong timeline
Date: Tue, 9 Jun 2026 14:13:54 +0800
Message-ID: <CABPTF7UFHTwukHhKQP7u9S7BuyzXvrqq46ZPPoC+T1A4FAoe2Q@mail.gmail.com> (raw)
In-Reply-To: <aierZPkbtW1OQu8+@bdtpg>
References: <[email protected]>
	<aiP/X1FThlZRCFiN@bdtpg>
	<OS9PR01MB1214908BA67A7811BD6281208F51C2@OS9PR01MB12149.jpnprd01.prod.outlook.com>
	<aiaBtENl7tTf2MM8@bdtpg>
	<TYRPR01MB12156677791D04E4E858F3FCCF51D2@TYRPR01MB12156.jpnprd01.prod.outlook.com>
	<aierZPkbtW1OQu8+@bdtpg>

On Tue, Jun 9, 2026 at 1:57 PM Bertrand Drouvot
<[email protected]> wrote:
>
> Hi Hayato-san,
>
> On Tue, Jun 09, 2026 at 04:04:20AM +0000, Hayato Kuroda (Fujitsu) wrote:
> > Dear Bertrand, Xuneng,
> >
> > Thanks for sharing the reproducer and opinion. I could now understand.
> >
> > While seeing, I felt the same issue can happen even for the streaming case.
> > Please see attached reproducer and possible fix.

Good catch!

> I just had a quick look and I feel that's probably an issue too (good find!).
> I think that your fix should use GetWALInsertionTimeLineIfSet() though (but I
> only did a quick scan on your patch).
>
> > Can you also include that point? Or this thread discusses only for the logical case?
> > If separated, I can take initiative for the streaming part, after the logical decoding
> > case.
>
> I would says it's probably better to keep this thread focusing on Alexander's issue
> (logical decoding). Once this thread is fixed, then I'd suggest to open a dedicated
> thread for the streaming one (mentioning this thread and probably trying to mimic
> its fix as close as possible).
>

+1 for starting a dedicated thread. Please CC me in that thread in
case I miss it.

-- 
Regards,
Xuneng Zhou
HighGo Software Co., Ltd.

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