Received: from malur.postgresql.org ([217.196.149.56])
	by arkaria.postgresql.org with esmtps  (TLS1.3) tls
 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
	(Exim 4.94.2)
	(envelope-from <pgsql-bugs-owner+archive@lists.postgresql.org>)
	id 1qlfTv-003qMz-AO
	for pgsql-bugs@arkaria.postgresql.org; Thu, 28 Sep 2023 01:06:19 +0000
Received: from localhost ([127.0.0.1] helo=malur.postgresql.org)
	by malur.postgresql.org with esmtp (Exim 4.94.2)
	(envelope-from <pgsql-bugs-owner+archive@lists.postgresql.org>)
	id 1qlfTt-0074sZ-B7
	for pgsql-bugs@arkaria.postgresql.org; Thu, 28 Sep 2023 01:06:17 +0000
Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29])
	by malur.postgresql.org with esmtps  (TLS1.3) tls
 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
	(Exim 4.94.2)
	(envelope-from <tgl@sss.pgh.pa.us>)
	id 1qlfTt-0074sO-2V
	for pgsql-bugs@lists.postgresql.org; Thu, 28 Sep 2023 01:06:17 +0000
Received: from sss.pgh.pa.us ([68.162.161.243])
	by magus.postgresql.org with esmtps  (TLS1.3) tls
 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
	(Exim 4.94.2)
	(envelope-from <tgl@sss.pgh.pa.us>)
	id 1qlfTq-007zcZ-Gy
	for pgsql-bugs@lists.postgresql.org; Thu, 28 Sep 2023 01:06:16 +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 38S16Dgq802120;
	Wed, 27 Sep 2023 21:06:13 -0400
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Bruce Momjian <bruce@momjian.us>
cc: Pete Storer <Pete.Storer@sas.com>,
        "pgsql-bugs@lists.postgresql.org" <pgsql-bugs@lists.postgresql.org>
Subject: Re: FW: Query execution failure
In-reply-to: <ZRTQHKRhSLndfB5z@momjian.us>
References: 
 <BL0PR05MB66282A9070EE621D031C27C7F3CE9@BL0PR05MB6628.namprd05.prod.outlook.com>
 <BL0PR05MB66283C57D72E321591AE4EB1F3CE9@BL0PR05MB6628.namprd05.prod.outlook.com>
 <2957101.1674746628@sss.pgh.pa.us>
 <BL0PR05MB66282D22D96AB745FBBD521FF3CF9@BL0PR05MB6628.namprd05.prod.outlook.com>
 <2961799.1674749201@sss.pgh.pa.us> <Y9fjfNpP7HZh1YX9@momjian.us>
 <ZRTQHKRhSLndfB5z@momjian.us>
Comments: In-reply-to Bruce Momjian <bruce@momjian.us>
	message dated "Wed, 27 Sep 2023 21:00:12 -0400"
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-ID: <802118.1695863173.1@sss.pgh.pa.us>
Date: Wed, 27 Sep 2023 21:06:13 -0400
Message-ID: <802119.1695863173@sss.pgh.pa.us>
List-Id: <pgsql-bugs.lists.postgresql.org>
List-Help: <https://lists.postgresql.org/manage/>
List-Subscribe: <https://lists.postgresql.org/manage/>
List-Post: <mailto:pgsql-bugs@lists.postgresql.org>
List-Owner: <mailto:pgsql-bugs-owner@lists.postgresql.org>
List-Archive: <https://www.postgresql.org/list/pgsql-bugs>
Archived-At: 
 <https://www.postgresql.org/message-id/802119.1695863173%40sss.pgh.pa.us>
Precedence: bulk

Bruce Momjian <bruce@momjian.us> writes:
> The attached patch documents this remote sort order requirement.

That seems like quite a random place to insert the documentation.
I doubt that the requirement applies only to upper paths -- FDWs
are allowed to return sorted paths for base relations too,
comparable to indexscan paths.

			regards, tom lane