At Mon, 30 Oct 2023 03:36:41 +0000, "Zhijie Hou (Fujitsu)" <houzj.f...@fujitsu.com> wrote in > Thanks for the diff and I think the approach basically works. > > One notable behavior of this approach it will reject the GUC setting even if > there > are no slots on old cluster or user set the value to a big enough value which > doesn't cause invalidation. The behavior doesn't look bad to me but just > mention it > for reference.
Indeed. pg_upgrade anyway sets the variable to -1 irrespective of the slot's existence, and I see no justification for allowing users to forcibly change it. regards. -- Kyotaro Horiguchi NTT Open Source Software Center