Hi, On 2024-06-17 19:51:45 +0200, Daniel Gustafsson wrote: > > On 17 Jun 2024, at 19:44, Andres Freund <and...@anarazel.de> wrote: > > >> Let's bring that to Erica's patch for allowing a list of curves. > > > > I'm kinda wondering if we ought to do something about this in the > > backbranches. Forcing unnecessary roundtrips onto everyone for the next five > > years due to an oversight on our part isn't great. Once you're not local, > > the > > roundtrip does measurably increase the "time to first query". > > I don't disagree, but wouldn't it be the type of behavioural change which we > typically try to avoid in backbranches?
Yea, it's not great. Not sure what the right thing is here. > Changing the default of the ecdh GUC would perhaps be doable? I was wondering whether we could change the default so that it accepts both x25519 and secp256r1. Unfortunately that seems to requires changing what we use to set the parameter... > (assuming that's a working solution to avoid the roundtrip). It is. > Amending the documentation is the one thing we certainly can do but 99.9% of > affected users won't know they are affected so won't look for that section. Yea. It's also possible that some other bindings changed their default to match ours... Greetings, Andres Freund
