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From: Joe Conway <[email protected]>
To: Jelte Fennema-Nio <[email protected]>
To: Tom Lane <[email protected]>
Cc: Bruce Momjian <[email protected]>
Cc: PostgreSQL-development <[email protected]>
Subject: Re: First draft of PG 17 release notes
Date: Sat, 11 May 2024 10:24:39 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAGECzQQRxCzr5KuoK6LZpsoKPYZwJ4_gtW6de-cikKECqPcsoA@mail.gmail.com>
References: <[email protected]>
	<CAGECzQTz5aUqLEL6daLd2Hu2FXS_LOSh4keDndJ1fwThsb_b5w@mail.gmail.com>
	<[email protected]>
	<[email protected]>
	<CAGECzQQRxCzr5KuoK6LZpsoKPYZwJ4_gtW6de-cikKECqPcsoA@mail.gmail.com>

On 5/11/24 09:57, Jelte Fennema-Nio wrote:
> On Fri, 10 May 2024 at 23:31, Tom Lane <[email protected]> wrote:
>>
>> Bruce Momjian <[email protected]> writes:
>> > I looked at both of these.   In both cases I didn't see why the user
>> > would need to know these changes were made:
>>
>> I agree that the buffering change is not likely interesting, but
>> the fact that you can now control-C out of a psql "\c" command
>> is user-visible.  People might have internalized the fact that
>> it didn't work, or created complicated workarounds.
> 
> The buffering change improved performance up to ~40% in some of the
> benchmarks. The case it improves mostly is COPY of large rows and
> streaming a base backup. That sounds user-visible enough to me to
> warrant an entry imho.

+1

-- 
Joe Conway
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com

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