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 ) id 1u3TYy-00GOdF-7B for pgsql-general@arkaria.postgresql.org; Sat, 12 Apr 2025 05:37:56 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.94.2) (envelope-from ) id 1u3TYw-001gXM-5l for pgsql-general@arkaria.postgresql.org; Sat, 12 Apr 2025 05:37:54 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1u3TYv-001gWh-Oy for pgsql-general@lists.postgresql.org; Sat, 12 Apr 2025 05:37:54 +0000 Received: from smtp88.iad3b.emailsrvr.com ([146.20.161.88]) by makus.postgresql.org with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1u3TYu-004QLJ-1B for pgsql-general@postgresql.org; Sat, 12 Apr 2025 05:37:53 +0000 X-Auth-ID: xof@thebuild.com Received: by smtp12.relay.iad3b.emailsrvr.com (Authenticated sender: xof-AT-thebuild.com) with ESMTPSA id 07921C014D; Sat, 12 Apr 2025 01:37:50 -0400 (EDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3776.700.51.11.1\)) Subject: Re: To take backup of Postgresql Database without large objects From: Christophe Pettus In-Reply-To: <312140824.825355.1744436092713@mail.yahoo.com> Date: Fri, 11 Apr 2025 22:37:19 -0700 Cc: "David G. Johnston" , Pgsql-general , Adrian Klaver Content-Transfer-Encoding: quoted-printable Message-Id: <92A90844-8669-477C-90E9-41D619814D8C@thebuild.com> References: <1477036526.178965.1744376140698.ref@mail.yahoo.com> <1477036526.178965.1744376140698@mail.yahoo.com> <40a86c92-5fc9-447d-969e-2a61cc98629c@aklaver.com> <1494046583.828048.1744434369825@mail.yahoo.com> <312140824.825355.1744436092713@mail.yahoo.com> To: "sivapostgres@yahoo.com" X-Mailer: Apple Mail (2.3776.700.51.11.1) X-Classification-ID: 80b88151-e2c6-422d-97cc-c5463746b391-1-1 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk > On Apr 11, 2025, at 22:34, sivapostgres@yahoo.com wrote: > Then I've misunderstood large objects. Is there document to explain = large objects? =20 Large objects are a relatively old and now little-used feature of = PostgreSQL that predates the bytea type: https://www.postgresql.org/docs/current/largeobjects.html As was mentioned, you cannot exclude individual columns with pg_dump; = you have to exclude the entire table.=