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From: Alexander Lakhin <exclusion@gmail.com>
To: Andrei Lepikhov <a.lepikhov@postgrespro.ru>
To: Alexander Korotkov <aekorotkov@gmail.com>
Cc: Gregory Stark (as CFM) <stark.cfm@gmail.com>
Cc: Michał Kłeczek <michal@kleczek.org>
Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Cc: Richard Guo <guofenglinux@gmail.com>
Subject: Re: Removing unneeded self joins
Date: Fri, 29 Dec 2023 14:00:01 +0300
Message-ID: <336c748b-4ffe-5915-3d3c-ece6d19e021c@gmail.com> (raw)
In-Reply-To: <0c5f461f-e26f-4fd9-9700-91b0e9c38fd6@postgrespro.ru>
References: <64486b0b-0404-e39e-322d-0801154901f3@postgrespro.ru>
	<CAPpHfdt9G3EU+vXuqexhweEQoMF-acPUUFuB6hV2Kg0gCy7AjA@mail.gmail.com>
	<ebe66358-428c-439f-85dd-da72c9b2b0c2@postgrespro.ru>
	<CAPpHfdt-0kVV7O==aJEbjY2iGYBu+XBzTHEbPv_6sVNeC7fffQ@mail.gmail.com>
	<48c11b23-9c23-440e-9a3c-020e05196449@postgrespro.ru>
	<CAPpHfdsQkY0Gu7bQ9Ekdyzo_5Xxz74TYKbwmk1on1WAASpxXcQ@mail.gmail.com>
	<8800ccf2-ae82-461c-92a1-d4c0a22f8cf2@postgrespro.ru>
	<CAPpHfdvJ3jBQaJQKrf69K++kXi+Tvzn6TXO-DKXj0KVJjvMebg@mail.gmail.com>
	<1bd80083-a13e-4e9f-a7ce-73c3faab521c@postgrespro.ru>
	<CAPpHfdsz8E085YF2VoJe2+h4YAShsh7p--t3kQfQTntiCy63Xg@mail.gmail.com>
	<922623af-872e-4cdc-9238-129b18bee42d@postgrespro.ru>
	<CAPpHfduoAHTp6O7Q8PDe_w=30v0n_06pGe5M65iR4DYcfaYnRw@mail.gmail.com>
	<107682e0-137a-d0fb-2733-7fc6e9562690@gmail.com>
	<CAPpHfduLxYm4biJrTbjBxTAW6vkxBswuQ2B=gXU+c37QJd6+Ow@mail.gmail.com>
	<a89f480f-8143-0965-f22d-0a892777f501@gmail.com>
	<0c5f461f-e26f-4fd9-9700-91b0e9c38fd6@postgrespro.ru>

Hi Andrei,

29.12.2023 12:58, Andrei Lepikhov wrote:
> Thanks for the report!
> The problem is with the resultRelation field. We forget to replace the relid here.
> Could you check your issue with the patch in the attachment? Does it resolve this case?
>

Yes, with the patch applied I see no error.
Thank you!

Best regards,
Alexander





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