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 1uKHp1-000V8Z-RX for pgsql-admin@arkaria.postgresql.org; Wed, 28 May 2025 14:31:59 +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 1uKHp0-000Z11-In for pgsql-admin@arkaria.postgresql.org; Wed, 28 May 2025 14:31:58 +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 1uKHp0-000Z0t-7L for pgsql-admin@lists.postgresql.org; Wed, 28 May 2025 14:31:58 +0000 Received: from mailout.easymail.ca ([64.68.200.34]) by makus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1uKHoy-000ODy-0B for pgsql-admin@lists.postgresql.org; Wed, 28 May 2025 14:31:57 +0000 Received: from localhost (localhost [127.0.0.1]) by mailout.easymail.ca (Postfix) with ESMTP id D3065634D9; Wed, 28 May 2025 14:31:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=elevated-dev.com; s=easymail; t=1748442713; bh=O80wglP+V2mi/s2Gp3+zJ6a/81YoCjnGI8FiCzG1aug=; h=Subject:From:In-Reply-To:Date:Cc:References:To:From; b=4h96eBintnTbaDLrj8HWhSl2FBfbB9N012EIQLiytiMdQNIKTAXmFrGNgDcGT8mL7 /CO3wH2f2rRyzUeR9KPKItj8h+AvA4PUgququIkZneQ3453F0fTjprff0js3cdoekT JcsOquvh347wSdzeaTkTOy9uxI1TRUqXYxCrOVm+rvxDVPSUpnNIHNqJwGoGXfgRjg /NrBSmpRafX6+tWNOterzqGjgsjiLl0UuHj6dPIapEYaDvvQzcS6/MDrro1EqTcWlS mA7gWfp3x8M7koUEVXFuzkNK2BRM+yTZhQNzX7HMfb6vz+Gkjen1QV99f/chZotnNt dKqBkgIMRnesg== X-Virus-Scanned: Debian amavisd-new at emo09-pco.easydns.vpn Received: from mailout.easymail.ca ([127.0.0.1]) by localhost (emo09-pco.easydns.vpn [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id qBwge5l75Tm4; Wed, 28 May 2025 14:31:53 +0000 (UTC) Received: from smtpclient.apple (165.140.184.195.ip.vcn.com [165.140.184.195]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mailout.easymail.ca (Postfix) with ESMTPSA id 5CBF362B40; Wed, 28 May 2025 14:31:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=elevated-dev.com; s=easymail; t=1748442713; bh=O80wglP+V2mi/s2Gp3+zJ6a/81YoCjnGI8FiCzG1aug=; h=Subject:From:In-Reply-To:Date:Cc:References:To:From; b=4h96eBintnTbaDLrj8HWhSl2FBfbB9N012EIQLiytiMdQNIKTAXmFrGNgDcGT8mL7 /CO3wH2f2rRyzUeR9KPKItj8h+AvA4PUgququIkZneQ3453F0fTjprff0js3cdoekT JcsOquvh347wSdzeaTkTOy9uxI1TRUqXYxCrOVm+rvxDVPSUpnNIHNqJwGoGXfgRjg /NrBSmpRafX6+tWNOterzqGjgsjiLl0UuHj6dPIapEYaDvvQzcS6/MDrro1EqTcWlS mA7gWfp3x8M7koUEVXFuzkNK2BRM+yTZhQNzX7HMfb6vz+Gkjen1QV99f/chZotnNt dKqBkgIMRnesg== Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3826.500.181.1.5\)) Subject: Re: Replication Slots. From: Scott Ribe In-Reply-To: Date: Wed, 28 May 2025 08:31:42 -0600 Cc: Pgsql-admin Content-Transfer-Encoding: quoted-printable Message-Id: <589E78A6-CDB4-4844-BEFD-DB8482D6A57A@elevated-dev.com> References: To: Gambhir Singh X-Mailer: Apple Mail (2.3826.500.181.1.5) List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk Depends on version, I think. IIRC cascaded replication like that was = added in fairly recent PG versions. -- Scott Ribe scott_ribe@elevated-dev.com https://www.linkedin.com/in/scottribe/ > On May 28, 2025, at 8:20=E2=80=AFAM, Gambhir Singh = wrote: >=20 > Can we create replication slots on standby and read the changes. App = team using Abnitio Graph to get the changes in db through replication = slots. Currently they are working on primary DB, now they are asking if = they can use standby for the same to offload the primary DB.