On April 17, 2018 6:00:59 PM PDT, Michael Paquier <mich...@paquier.xyz> wrote: >On Tue, Apr 17, 2018 at 12:12:26PM -0700, Andres Freund wrote: >> On 2018-04-17 15:09:18 -0400, Tom Lane wrote: >>> Alvaro Herrera <alvhe...@alvh.no-ip.org> writes: >>>> Andres was working on a radix tree structure to fix this problem, >but >>>> that seems to be abandoned now, and it seems a major undertaking. >> >> I hope to re-ignite work on that later in the v12 cycle. But >> realistically that means it's not going to be mergable for v12. > >Need a push of man-hours for that?
Not sure what you mean? >>>> While I agree that the proposed solution is a wart, it seems much >>>> better than no solution at all. Can we consider Fujii's proposal >as >>>> a temporary measure until we fix shared buffers? I'm +1 on it >>>> myself. >>> >>> Once we've introduced a user-visible reloption it's going to be >>> practically impossible to get rid of it, so I'm -1. >> >> It's not much work to maintain though? And even the brief AEL lock >can >> cause troubles, leaving the scan aside. So I'm like +0.1 or such. > >I would say that if the radix tree patch can make it for the first >commit fest and has reviews, then there would be likely no need for >this >reloption. There's no way it can. Andres -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
