Re: Offline data checksum changes can cause incorrect checksum state on standbys

> On 7 Sep 2026, at 13:08, Heikki Linnakangas <hlinnaka(at)iki(dot)fi> wrote:

> Let's add a new 'sect2' for this explanation, and move it after the "Online Enabling of Checksums" section. It's currently placed under "Offline Enabling of Checksums", but it actually goes into a lot of details of how *online* checksumming works, but "Online Enabling of Checksums" is covered in the following paragraph. If you read this in order like a novel, it feels weird.
>
> I think these paragraphs could use some copy-editing too. It feels like a pretty deep technical explanation, not very accessible to a DBA. Maybe start with "The primary server and replica can have different checksum states".
>
> (Not new with this patch, but: )
>
> The placement of the states in the state diagram on that page looks bizarre. I know it's auto-generated so not sure there's much we can do about it.. but could we, please? Maybe it'd get more clear if you leave 'initdb' out of the diagram. Or consider some completely different representation.

The attached v14 rewords and reorganizes the docs, and attempts to tidy uo the
state diagram. There are no new code changes in this version.

--
Daniel Gustafsson