Hi Peter
> On Oct 29, 2023, at 02:43, Peter J. Holzer <hjp-pgsql@hjp.at> wrote:
> I don't think so. AFAIK Replication keeps the data files in sync on a
> bit-for-bit level and turning on checksums changes the data layout.
> Running a cluster where one node has checksums and the other doesn't
> would result in a complete mess.
I agree with the last sentence. This is why I asked if it is safe to enable checksums on a replica, switch over and
thendo it again on the ex primary, i.e. now new replica without doing a reinit.
Cheers
Paul