Re: pg_upgrade stores an invalid datminmxid/relminmxid when the old cluster's newest multixact is 0xFFFFFFFF

[Zsolt Parragi]

Hello

I agree that this seems to be another corner case, but about the commit message:

> servers before v19 skip 0 only when the next multixid is assigned.

It doesn't seem to be 19 specific to me?