Peter Eisentraut <[email protected]> writes:
> I think the real fix is to have pg_upgrade copy over the statistics.
> They are right there after all, just take them.
Well, it's not "just take them", we need to develop some infrastructure
that will permit coping with cross-version differences in the stats
storage. This isn't insoluble, but it will take some work. We had
a prior discussion that trailed off without much result:
https://www.postgresql.org/message-id/flat/724322880.K8vzik8zPz%40abook
regards, tom lane