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. > > 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. Greetings, Andres Freund
