Subject: Re: BUG #17284: Assert failed in SerialAdd() when the
 summarize_serial mode is engaged
To: Thomas Munro <thomas.munro@gmail.com>,
 PostgreSQL mailing lists <pgsql-bugs@lists.postgresql.org>
References: <17284-c878f548184aae1f@postgresql.org>
 <CA+hUKGJO6=XbeGLefwvanfase+FFOkZEriGfjX1PvUBKPeo9Ww@mail.gmail.com>
From: Alexander Lakhin <exclusion@gmail.com>
Message-ID: <8583d198-46f2-57db-c7f5-97d285c0e51f@gmail.com>
Date: Sun, 14 Nov 2021 04:00:00 +0300
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Hello Thomas,
13.11.2021 21:23, Thomas Munro wrote:
> On Sun, Nov 14, 2021 at 1:35 AM PG Bug reporting form
> <noreply@postgresql.org> wrote:
>> It can be easily reproduced on the build made with 'CPPFLAGS="-O0
>> -DTEST_SUMMARIZE_SERIAL"' by the following script (based on the simplified
>> script by Thomas Munro from bug#17116):
> I assume from the separate bug report that this fails even if you
> apply the patches from that other thread?
>
> https://www.postgresql.org/message-id/flat/17116-d6ca217acc180e30%40postgresql.org
Yes, applying patches
v4-0001-Fix-assert-failures-in-parallel-SERIALIZABLE-READ and
v4-0002-Fix-race-in-SERIALIZABLE-READ-ONLY from that thread doesn't
affect this assert (tested on the master branch).

Best regards,
Alexander