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 1vAqlN-006ZA0-4q for pgsql-general@arkaria.postgresql.org; Mon, 20 Oct 2025 14:21:28 +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 1vAqlL-000o6e-T1 for pgsql-general@arkaria.postgresql.org; Mon, 20 Oct 2025 14:21:26 +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 1vAqlL-000o6W-I4 for pgsql-general@lists.postgresql.org; Mon, 20 Oct 2025 14:21:26 +0000 Received: from mail-ej1-x634.google.com ([2a00:1450:4864:20::634]) by magus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.96) (envelope-from ) id 1vAqlI-003F90-0k for pgsql-general@lists.postgresql.org; Mon, 20 Oct 2025 14:21:26 +0000 Received: by mail-ej1-x634.google.com with SMTP id a640c23a62f3a-b4c89df6145so725549366b.3 for ; Mon, 20 Oct 2025 07:21:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kleczek.org; s=google; t=1760970083; x=1761574883; darn=lists.postgresql.org; h=to:references:message-id:content-transfer-encoding:cc:date :in-reply-to:from:subject:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=677C2hgvtSDCZCRH2UbNLfP2KKEQ+lIf3KTIoQ2OiF4=; b=bGU0lPpfUELpZFNi6hiqI+Pxa7CkQssVTPGLyASthOcjK8rxdFyPkIIBXMK+PH5t1R kjIg/V+QIf0Kd/RGRI1iJTit2N2GP2IktMdzrr/5Q1oj4UfwbHycOoGCW+EdZxYuydzq V53elNfufAl2e7M1G6asPDLqqAOnygO3XknVY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1760970083; x=1761574883; h=to:references:message-id:content-transfer-encoding:cc:date :in-reply-to:from:subject:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=677C2hgvtSDCZCRH2UbNLfP2KKEQ+lIf3KTIoQ2OiF4=; b=XELdB5X1h+apLklwQNQPphBnzTUfqpZzlNanxqutwxTh9w2T072dFJswNjKaVdkSMg 9rP729ge2STrFoGW+04rbFvrOCY4ahnprg8xFyE3tdpA5Cy+tb0f5ks6cgPBojcW6Yna M5HtzPULd/MpQhlGaiVLGEHN7slf6246k2dsU5SLWKJ/kMA8ojgFGagx+Fpx5vMOhAc2 XWyayJRHYKGQxZAASFmKRx5pyBpsGAgDzsSTYWPDRy04BRRh88qxm/arq34XgSlcYKXA KcEf7ziAAnxVH/Vo4SbH9CZ6thP4E5owhL/Y4N9s5q+jllG/DRsRqNNVSAW4DJ9Sh/+4 mVhQ== X-Gm-Message-State: AOJu0YwVCgWswUVyEaS2iQSb++R5Uw5zmF0iPHTDuns2b5q1NHyTsrAN ZrGo4P4nl/aTsxFh70lPGkGqP1IPM/TIMz8LrTVF/HJ6NWB//BZscKgVsOAvwFmLR9BT7lKXTFe BhBHf X-Gm-Gg: ASbGncvgrJ2ihPXSnw+5vQA8cyBazw6aGzJ/q3SyEaj5p1OD4DU5L4CPA5PTCJygtYM gGaGsQYprqQIJHoP9PCIMWy+9EAPk06Z2/EP9U09732oevmAWg1Q/ncfsy42xIWwlgQ086Lwo/H IcjxS6lv7v/ro7J1h9w/PMGh6zRJvs61jzsQx1RFaGIb6L0Hk15UcmlTS0S0LcB2GESK8JkOBss PDvBje8Ias3AMFuJN62+kpmVaZkY2cGf0ElHqfrRqkaoMn6jdhlh0frnzDUU0nkVd0b/X5lBvdC 5qOEy2HyVUdf9bpck1PAMKkqR9+vHBod/hBwxhQeI/eWmTC0QgYalXiLs4desJB0yy5e50WD1QP kjBLFM9OTv/VsaPyh0SlDwRldhh8i687qK/5h1VV/Bgo2kuPTS99zPb+kJGl2j5V3ONkSt5Wtck aMFZqhWLCinNjzifRrH/pQ0kh9cWI= X-Google-Smtp-Source: AGHT+IECwpyvfuUt5+0U6vxYnlqWZBupTjSy9vDcTWgZCremkvFT17yzXnYZTOGosixOXpST+3h1uA== X-Received: by 2002:a17:907:fd17:b0:b3f:fcc7:6ed8 with SMTP id a640c23a62f3a-b6473842e79mr1421160666b.29.1760970082741; Mon, 20 Oct 2025 07:21:22 -0700 (PDT) Received: from smtpclient.apple (b15.kleczek.org. [185.20.172.182]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b65e83959f0sm800197266b.25.2025.10.20.07.21.20 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 20 Oct 2025 07:21:21 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3826.700.81\)) Subject: Re: Arrays vs separate tables From: =?utf-8?Q?Micha=C5=82_K=C5=82eczek?= In-Reply-To: <712b8b5c-15d2-e284-a0c0-6263415250c3@appl-ecosys.com> Date: Mon, 20 Oct 2025 16:21:09 +0200 Cc: pgsql-general@lists.postgresql.org Content-Transfer-Encoding: quoted-printable Message-Id: 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> To: Rich Shepard X-Mailer: Apple Mail (2.3826.700.81) List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk > On 20 Oct 2025, at 16:07, Rich Shepard = wrote: >=20 > On Mon, 20 Oct 2025, Micha=C5=82 K=C5=82eczek wrote: >=20 >> There is also another concern - do you want to make sure phone = numbers are >> not shared? >=20 > Michal, >=20 > Shared with whom? Sorry, I wasn=E2=80=99t clear. How do you make sure a phone number is not shared by two (or more) = customers? =E2=80=94 Michal