Hi, On 2022-11-14 15:07:05 -0800, Peter Geoghegan wrote: > I'd really like to know if the scary HOT chain freezing scenario is > possible, for the very obvious reason. Have you tried to write a test > case for that?
I tried. Unfortunately, even if the bug exists, we currently don't have the infrastructure to write isolationtester tests for it. There's just too many points where we'd need to wait where I don't know of ways to wait with isolationtester. I'm quite certain that it's possible to end up freezing an earlier row versions in a hot chain in < 14, I got there with careful gdb orchestration. Of course possible I screwed something up, given I did it once, interactively. Not sure if trying to fix it is worth the risk of backpatching all the necessary changes to switch to the retry approach. Greetings, Andres Freund
