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 1vAqsR-006aKj-KL for pgsql-general@arkaria.postgresql.org; Mon, 20 Oct 2025 14:28:46 +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 1vAqsP-0010JS-Ib for pgsql-general@arkaria.postgresql.org; Mon, 20 Oct 2025 14:28:44 +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 1vAqpm-000usE-E7 for pgsql-general@lists.postgresql.org; Mon, 20 Oct 2025 14:26:01 +0000 Received: from mail.appl-ecosys.com ([50.126.108.78]) by magus.postgresql.org with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vAqpj-003FBe-1D for pgsql-general@lists.postgresql.org; Mon, 20 Oct 2025 14:26:01 +0000 Received: from salmo.appl-ecosys.com (salmo.appl-ecosys.com [192.168.55.1]) by mail.appl-ecosys.com (Postfix) with ESMTP id C650B2A14D6 for ; Mon, 20 Oct 2025 07:25:56 -0700 (PDT) Date: Mon, 20 Oct 2025 07:25:56 -0700 (PDT) From: Rich Shepard To: pgsql-general@lists.postgresql.org Subject: Re: Arrays vs separate tables In-Reply-To: Message-ID: <9555eb-681c-3d89-4af4-b0c68d476db2@appl-ecosys.com> References: <162e5330-861c-ecc7-45c1-aaa1aff26c88@appl-ecosys.com> <95de5a9b-4dd8-2f7-6e12-98c3d72c52@appl-ecosys.com> <712b8b5c-15d2-e284-a0c0-6263415250c3@appl-ecosys.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8BIT List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk On Mon, 20 Oct 2025, Michał Kłeczek wrote: > How do you make sure a phone number is not shared by two (or more) > customers? Michal, If it's the company's main telephone number then it's shared by all employees with phones on their desks. If it's a direct number then it connects to only a single phone. Either way it doesn't matter to me. When the person I call is at their desk my call will either be transferred by the receptionist or directly ring their phone. Rewgards, Rich