Hi,
On 2019-04-09 23:11:03 -0400, Bruce Momjian wrote:
> Enabling checksums by default will require anyone using pg_upgrade to
> run initdb to disable checksums before running pg_upgrade, for one
> release. We could add checksums for non-link pg_upgrade runs, but we
> don't have code to do that yet, and most people use link anyway.
Hm. We could just have pg_ugprade run pg_checksums --enable/disable,
based on the old cluster, and print a warning on mismatches. Not sure if
that's worth it, but ...
Greetings,
Andres Freund