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 1tsK5S-000kib-Ud for pgsql-general@arkaria.postgresql.org; Wed, 12 Mar 2025 11:17:22 +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 1tsK5R-002qBt-MB for pgsql-general@arkaria.postgresql.org; Wed, 12 Mar 2025 11:17:21 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1tsK5R-002qBk-Ar for pgsql-general@lists.postgresql.org; Wed, 12 Mar 2025 11:17:21 +0000 Received: from smtp84.ord1d.emailsrvr.com ([184.106.54.84]) by magus.postgresql.org with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1tsK5N-002Qfc-21 for pgsql-general@lists.postgresql.org; Wed, 12 Mar 2025 11:17:20 +0000 X-Auth-ID: xof@thebuild.com Received: by smtp19.relay.ord1d.emailsrvr.com (Authenticated sender: xof-AT-thebuild.com) with ESMTPSA id C0BA460148; Wed, 12 Mar 2025 07:17:15 -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: Moving from Linux to Linux? From: Christophe Pettus In-Reply-To: <1DA96F05-D9BF-4D68-80D3-3F3F99691C8D@gmail.com> Date: Wed, 12 Mar 2025 11:16:43 +0000 Cc: Ron Johnson , Pgsql-General List Content-Transfer-Encoding: quoted-printable Message-Id: <7FC835F0-FE59-45B3-8866-83E8549191D7@thebuild.com> References: <6E6059F6-E5A1-4A8D-8A5E-A41B921BBE67@gmail.com> <1DA96F05-D9BF-4D68-80D3-3F3F99691C8D@gmail.com> To: Paul Foerster X-Mailer: Apple Mail (2.3776.700.51.11.1) X-Classification-ID: caa5effd-d72f-4a2c-8a44-90894c77a6cf-1-1 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk > On Mar 12, 2025, at 11:01, Paul Foerster = wrote: > DDL during logical replication unfortunately is a show-stopper. You *can* apply DDL while logical replication is going on, as long as = you do so in a disciplined way. This generally means applying it to the = subscriber before you apply it to the publisher, and making sure that = any columns added to a table are either NULLable or have defaults.