Re: Backpatching injection point core facilities to REL_17_STABLE

On Thu, Aug 07, 2025 at 12:53:12PM +0300, Andrey Borodin wrote:
> FWIW both multixact problem [0] and my recent corruption finding [1]
> would benefit a lot from having ability to do injection points down
> to PG 12.
> And while [0] is a bug that is detectable with several pgbenches, I
> have a good sounding proof that [1] can't happen at all and no way
> to detect it without waiting injection point (or similar hand-hacked
> functionality).

Thanks for the input.

It is v18 and HEAD are on par in terms of features, with only
4eca711bc991 and 7b2eb72b1b8c requiring a cherry-pick, so perhaps we
should begin with that, before moving with more cherry-picks down to
v17 as the second step?

Any thoughts from others?  Would it be useful to get that down to the
back-branches?
--
Michael