| From: | Tomas Vondra <tomas(at)vondra(dot)me> |
|---|---|
| To: | Daniel Gustafsson <daniel(at)yesql(dot)se> |
| Cc: | Andres Freund <andres(at)anarazel(dot)de>, Bernd Helmle <mailings(at)oopsware(dot)de>, Michael Paquier <michael(at)paquier(dot)xyz>, Michael Banck <mbanck(at)gmx(dot)net>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: Changing the state of data checksums in a running cluster |
| Date: | 2026-03-15 22:59:04 |
| Message-ID: | d05fdb0e-d17e-49ba-b474-546c4493313b@vondra.me |
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| Lists: | pgsql-hackers |
On 3/15/26 23:47, Tomas Vondra wrote:
> On 3/12/26 00:56, Daniel Gustafsson wrote:
>> ...
>>
>> * The change to XLOG_CHECKPOINT_REDO to move the wal_level into a proper record
>> structure should be pulled out as a 0001 patch as it's an cleanup that has
>> value on its own.
>
> Makes sense, but it's going to be harder because since d774072f0040 all
> 4 bits in XLR_INFO are used.
>
Correction. This is not a problem for the XLOG_CHECKPOINT_REDO patch,
but for adding XLOG_CHECKSUMS. I guess we'll need a second xlog rmgr.
regards
--
Tomas Vondra
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