On Thu, Aug 26, 2021 at 03:38:23PM +0200, Daniel Gustafsson wrote: > > On 26 Aug 2021, at 15:09, Bruce Momjian <br...@momjian.us> wrote: > > On Thu, Aug 26, 2021 at 03:24:33PM +0800, Julien Rouhaud wrote: > > >> .. I still think that > >> changing bgworker_should_start_now() is a better option. > > > > I am not sure. We have a lot of pg_upgrade code that turns off things > > like autovacuum and that has worked fine: > > True, but there are also conditionals on IsBinaryUpgrade for starting the > autovacuum launcher in the postmaster, so there is some precedent.
Oh, I was not aware of that. > > Basically, pg_upgrade has avoided any backend changes that could be > > controlled by GUCs and I am not sure we want to start adding such > > changes for just this. > > In principle I think it’s sound to try to avoid backend changes where possible > without sacrificing robustness. Agreed. -- Bruce Momjian <br...@momjian.us> https://momjian.us EDB https://enterprisedb.com If only the physical world exists, free will is an illusion.