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 ) id 1pKLG5-000385-EB for pgsql-hackers@arkaria.postgresql.org; Tue, 24 Jan 2023 15:30:49 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1pKLG3-0003xL-Rf for pgsql-hackers@arkaria.postgresql.org; Tue, 24 Jan 2023 15:30:47 +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 ) id 1pKLG3-0003x6-Iz for pgsql-hackers@lists.postgresql.org; Tue, 24 Jan 2023 15:30:47 +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 ) id 1pKLG0-0007HU-50 for pgsql-hackers@lists.postgresql.org; Tue, 24 Jan 2023 15:30:45 +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 30OFUgOq2242599; Tue, 24 Jan 2023 10:30:43 -0500 From: Tom Lane To: Hans Buschmann cc: "pgsql-hackers@lists.postgresql.org" Subject: Re: Making Vars outer-join aware In-reply-to: <8c3a9f69b5d44373bdd35e640e59305c@nidsa.net> References: <8c3a9f69b5d44373bdd35e640e59305c@nidsa.net> Comments: In-reply-to Hans Buschmann message dated "Tue, 24 Jan 2023 10:11:00 +0000" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <2242597.1674574242.1@sss.pgh.pa.us> Content-Transfer-Encoding: quoted-printable Date: Tue, 24 Jan 2023 10:30:42 -0500 Message-ID: <2242598.1674574242@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk Hans Buschmann writes: > I just noticed your new efforts in this area. > I wanted to recurr to my old thread [1] considering constant propagation= of quals. > [1] https://www.postgresql.org/message-id/1571413123735.26467@nidsa.net Yeah, this patch series is not yet quite up to the point of improving that. That area is indeed the very next thing I want to work on, and I did spend some effort on it last month, but I ran out of time to get it working. Maybe we'll have something there for v17. regards, tom lane