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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Bruce Momjian <bruce@momjian.us>
Cc: Pete Storer <Pete.Storer@sas.com>
Cc: pgsql-bugs@lists.postgresql.org <pgsql-bugs@lists.postgresql.org>
Subject: Re: FW: Query execution failure
Date: Wed, 27 Sep 2023 21:06:13 -0400
Message-ID: <802119.1695863173@sss.pgh.pa.us> (raw)
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>

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





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