| From: | Daniel Gustafsson <daniel(at)yesql(dot)se> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>, Marko Kreen <markokr(at)gmail(dot)com>, Adrian Klaver <adrian(dot)klaver(at)gmail(dot)com>, Peter Eisentraut <peter_e(at)gmx(dot)net>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi> |
| Subject: | Re: ecdh support causes unnecessary roundtrips |
| Date: | 2024-06-17 17:51:45 |
| Message-ID: | 14936A43-8443-4D17-8805-CD12FF66247F@yesql.se |
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| Lists: | pgsql-hackers |
> On 17 Jun 2024, at 19:44, Andres Freund <andres(at)anarazel(dot)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? Changing the default of the ecdh GUC
would perhaps be doable? (assuming that's a working solution to avoid the
roundtrip). 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.
--
Daniel Gustafsson
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