Re: pgsql: Revert online data checksum transitions - Mailing list pgsql-hackers

From Daniel Gustafsson
Subject Re: pgsql: Revert online data checksum transitions
Date
Msg-id C8AD0CF7-1B98-4AC2-B0F3-EC6702C81482@yesql.se
Whole thread
In response to Re: pgsql: Revert online data checksum transitions  (Aleksander Alekseev <aleksander@tigerdata.com>)
Responses Re: pgsql: Revert online data checksum transitions
List pgsql-hackers
> On 16 Sep 2026, at 14:32, Aleksander Alekseev <aleksander@tigerdata.com> wrote:

>>> We should remove data_page_checksum_version from the pg_control_checkpoint
>>> entry in pg_proc.dat and reduce proargmodes from 20 output columns to 19?
>>
>> Ugh, I thought I had tested everything but clearly missed this one. Will fix immediately when back from lunch.
>
> I noticed that the revert was applied to REL_19_STABLE but not the
> master branch. Just wanted to make sure that's the plan.

That's indeed the plan.  The remaining issue that a user can, under the right
set of circumstances, get a false positive page verification in an orphaned
file failure during base backup.  The warning is harmless for data integrity,
but is non-trivial for the user to resolve since we don't provide any tools for
dealing with orphaned files.  Fixing this in master will reduce churn.

--
Daniel Gustafsson




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