Received: from malur.postgresql.org ([217.196.149.56])
	by arkaria.postgresql.org with esmtps
 (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256)
	(Exim 4.92)
	(envelope-from <pgsql-hackers-owner+archive@lists.postgresql.org>)
	id 1l0Rzz-0001ac-Bp
	for pgsql-hackers@arkaria.postgresql.org; Fri, 15 Jan 2021 16:30:55 +0000
Received: from localhost ([127.0.0.1] helo=malur.postgresql.org)
	by malur.postgresql.org with esmtp (Exim 4.92)
	(envelope-from <pgsql-hackers-owner+archive@lists.postgresql.org>)
	id 1l0Rzy-0003rn-0K
	for pgsql-hackers@arkaria.postgresql.org; Fri, 15 Jan 2021 16:30:54 +0000
Received: from makus.postgresql.org ([2001:4800:3e1:1::229])
	by malur.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256)
	(Exim 4.92)
	(envelope-from <tgl@sss.pgh.pa.us>)
	id 1l0Rzx-0003rg-Pg
	for pgsql-hackers@lists.postgresql.org; Fri, 15 Jan 2021 16:30:53 +0000
Received: from sss.pgh.pa.us ([66.207.139.130])
	by makus.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256)
	(Exim 4.92)
	(envelope-from <tgl@sss.pgh.pa.us>)
	id 1l0Rzv-0000t5-Os
	for pgsql-hackers@postgresql.org; Fri, 15 Jan 2021 16:30:52 +0000
Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1])
	by sss.pgh.pa.us (8.15.2/8.15.2) with ESMTP id 10FGUjms1669725;
	Fri, 15 Jan 2021 11:30:46 -0500
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Sergey Shinderuk <s.shinderuk@postgrespro.ru>
cc: Thomas Munro <thomas.munro@gmail.com>,
        pgsql-hackers <pgsql-hackers@postgresql.org>
Subject: Re: pg_preadv() and pg_pwritev()
In-reply-to: <2dc74e94-5b79-6bf9-e25f-516c916e03b7@postgrespro.ru>
References: 
 <CA+hUKGJA+u-220VONeoREBXJ9P3S94Y7J+kqCnTYmahvZJwM=g@mail.gmail.com>
 <CA+hUKGJ8Ww_fjzUzthdxUF6W3JQ3r=a1hWX7Fcfq9uEndZ_+GQ@mail.gmail.com>
 <CA+hUKGL9XFxM0ZO8ZADYJepSmjywknhnDkKSEttfmn2j9fg0BQ@mail.gmail.com>
 <ed3b8e5d-0da8-6ebd-fd1c-e0ac80a4b204@postgrespro.ru>
 <CA+hUKG+L573j4=XWv6S+r-687Yxn0FyXhtObH9_P-Nu_atL2pQ@mail.gmail.com>
 <448b3cb5-0ba0-6dc5-63c7-789e4eebc40b@postgrespro.ru>
 <1283127.1610554395@sss.pgh.pa.us> <1286060.1610558607@sss.pgh.pa.us>
 <1297389.1610562046@sss.pgh.pa.us> <1341608.1610580122@sss.pgh.pa.us>
 <c2e08e38-e4bd-780d-62df-4a33b537b75e@postgrespro.ru>
 <d90658e6-490e-db57-cd64-98868abe79cd@postgrespro.ru>
 <1410650.1610638974@sss.pgh.pa.us>
 <b2586af5-866f-8290-f068-046fbd1a01b8@postgrespro.ru>
 <1418166.1610647514@sss.pgh.pa.u! s> <1419199.1610649100@sss.pgh.pa.us>
 <1612230.1610662425@sss.pgh.pa.us> <dc9aa033-ad66-d078-ceec-6b5!
 a9de9c401@postgrespro.ru> <1621321.1610675106@sss.pgh.pa.us>
 <2dc74e94-5b79-6bf9-e25f-516c916e03b7@postgrespro.ru>
Comments: In-reply-to Sergey Shinderuk <s.shinderuk@postgrespro.ru>
	message dated "Fri, 15 Jan 2021 05:27:14 +0300"
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-ID: <1669723.1610728245.1@sss.pgh.pa.us>
Date: Fri, 15 Jan 2021 11:30:45 -0500
Message-ID: <1669724.1610728245@sss.pgh.pa.us>
List-Id: <pgsql-hackers.lists.postgresql.org>
List-Help: <https://lists.postgresql.org/manage/>
List-Subscribe: <https://lists.postgresql.org/manage/>
List-Post: <mailto:pgsql-hackers@lists.postgresql.org>
List-Owner: <mailto:pgsql-hackers-owner@lists.postgresql.org>
List-Archive: <https://www.postgresql.org/list/pgsql-hackers>
Precedence: bulk

Sergey Shinderuk <s.shinderuk@postgrespro.ru> writes:
> On 15.01.2021 04:45, Tom Lane wrote:
>> Hence, I propose the attached.  This works as far as I can tell
>> to fix the problem you're seeing.

> Yes, it works fine. Thank you very much.

Great.  Pushed with a little more polishing.

			regards, tom lane