On Sat, Nov 12, 2022 at 12:28 AM Imseih (AWS), Sami <sims...@amazon.com> wrote: > > > Yeah, it's a little inconsistent. > > Yes, this should be corrected by calling the failsafe > inside the parallel vacuum loops and handling the case by exiting > the loop and parallel vacuum if failsafe kicks in.
I agree it's better to be consistent but I think we cannot simply call lazy_check_wraparound_failsafe() inside the parallel vacuum loops. IIUC the failsafe is heap (or lazyvacuum ) specific, whereas parallel vacuum is a common infrastructure to do index vacuum in parallel. We should not break this design. For example, we would need to have a callback for index scan loop so that the caller (i.e. lazy vacuum) can do its work. Regards, -- Masahiko Sawada Amazon Web Services: https://aws.amazon.com
