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 1kmd6p-0006wJ-AR for pgsql-admin@arkaria.postgresql.org; Tue, 08 Dec 2020 13:32:51 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1kmd6o-0003AD-4A for pgsql-admin@arkaria.postgresql.org; Tue, 08 Dec 2020 13:32:50 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kmd6n-0003A6-TF for pgsql-admin@lists.postgresql.org; Tue, 08 Dec 2020 13:32:49 +0000 Received: from mailout.easymail.ca ([64.68.200.34]) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kmd6j-0001EV-Fl for pgsql-admin@lists.postgresql.org; Tue, 08 Dec 2020 13:32:49 +0000 Received: from localhost (localhost [127.0.0.1]) by mailout.easymail.ca (Postfix) with ESMTP id 27C90A3AE3; Tue, 8 Dec 2020 13:32:43 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at emo05-pco.easydns.vpn Received: from mailout.easymail.ca ([127.0.0.1]) by localhost (emo05-pco.easydns.vpn [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 1g03qUKmc6N3; Tue, 8 Dec 2020 13:32:43 +0000 (UTC) Received: from shr-macbook-pro.local (unknown [4.28.96.150]) (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 CCEF2A172C; Tue, 8 Dec 2020 13:32:39 +0000 (UTC) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.120.23.2.4\)) Subject: Re: reindexing db From: Scott Ribe In-Reply-To: <214E5DBC-1F6F-49C1-8B83-9A2EB33E969A@gmail.com> Date: Tue, 8 Dec 2020 06:32:34 -0700 Cc: Ron , pgsql-admin@lists.postgresql.org Content-Transfer-Encoding: quoted-printable Message-Id: <5188016F-8C58-47C6-8A15-913A6C123263@elevated-dev.com> References: <292966DF-135C-4483-81A9-5027FC3C8A82@elevated-dev.com> <214E5DBC-1F6F-49C1-8B83-9A2EB33E969A@gmail.com> To: =?utf-8?Q?Paul_F=C3=B6rster?= X-Mailer: Apple Mail (2.3608.120.23.2.4) List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk > On Dec 7, 2020, at 11:36 PM, Paul F=C3=B6rster = wrote: >=20 > hmm, yes, I agree to *some* point. But also think about possible = changes in glibc and the collation problems corrupting indexes that come = with it. So, you do a reindexdb deliberately to protect yourself against = index corruption because PostgreSQL can't know by itself that it needs = such protection because it doesn't know of any changes in glibc. This is exactly why I'm doing it.=