Re: Should we update the random_page_cost default value?

From: Tomas Vondra <tomas(at)vondra(dot)me>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: Andres Freund <andres(at)anarazel(dot)de>, Greg Sabino Mullane <htamfids(at)gmail(dot)com>, Robert Treat <rob(at)xzilla(dot)net>, Bruce Momjian <bruce(at)momjian(dot)us>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: Should we update the random_page_cost default value?
Date: 2025-10-09 15:33:19
Message-ID: d7c17688-40af-4e2a-9407-d8ab1f0553fd@vondra.me
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On 10/9/25 17:03, Robert Haas wrote:
> On Thu, Oct 9, 2025 at 10:47 AM Tomas Vondra <tomas(at)vondra(dot)me> wrote:
>> I agree with this. But isn't this a mostly orthogonal problem? I mean,
>> shouldn't we do both (or try to)?
>>
>> Also, if users complain about A and not about B, does that mean B is not
>> an issue?
>>
>> Isn't ignoring "B" a bit like that? Of course, maybe B really is not
>> worth worrying about. Or maybe this is not the right approach to address
>> it, I don't know.
>
> I'm just telling you what I think. I'm not purporting to have all of
> the right answers.
>

Neither do I, of course. We're mostly brainstorming here, I think. I
hope none of what I wrote came out as harsh, it wasn't meant that way.

regards

--
Tomas Vondra

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