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 1uezej-000h3M-Ij for pgsql-docs@arkaria.postgresql.org; Thu, 24 Jul 2025 17:22:58 +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 1uezei-009KUV-MV for pgsql-docs@arkaria.postgresql.org; Thu, 24 Jul 2025 17:22:56 +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 1uecM3-003IEj-Lx for pgsql-docs@lists.postgresql.org; Wed, 23 Jul 2025 16:30:07 +0000 Received: from mahout.postgresql.org ([2001:4800:3e1:1::227]) by makus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1uecM1-000Phq-27 for pgsql-docs@lists.postgresql.org; Wed, 23 Jul 2025 16:30:06 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=postgresql.org; s=20171124; h=Message-ID:Date:Reply-To:Cc:From:To:Subject: MIME-Version:Content-Type:Sender:Content-Transfer-Encoding:Content-ID: Content-Description:In-Reply-To:References; bh=kzzV9PdIEoDDsV6Z3lqoFmqD1hQ+SRKDiXQK9aFtShs=; b=ySCZ3/OuiwEHYApDOb4gCy7PfX n3BomzrRtHKUJtJ7zBPGPDODT+8oo01xsDggBfgG+c+FVY4iXcglCaY5qZWLL1bQ/mhGtwrqFmhGw 0lE3mMZSixrVjecpCLvt3q1ZqAGOvuca5Z1DMlC193FbMcTd+DlOMG1m3YVXm/Tx3YmKQgFfHLrul sHrXXBosyWKHU4Fjr+2JZXT+IngcVNzq3XKuU2hC9lDVPrF206w/wvCRPpiFAqO7EALVKcVDICjyS yx+tkhbYshh3KUYXI6jUrJXQINwpT3w7ZzdBQOlMPa07edAv9XrrSvryLhoL0WM10B/OF6AYIYs86 3BFf3lEA==; Received: from wrigleys.postgresql.org ([2a02:16a8:dc51::60]) by mahout.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1uecLz-0013NH-JK for pgsql-docs@lists.postgresql.org; Wed, 23 Jul 2025 16:30:05 +0000 Received: from localhost ([127.0.0.1] helo=wrigleys.postgresql.org) by wrigleys.postgresql.org with esmtp (Exim 4.96) (envelope-from ) id 1uecLz-001kD3-15 for pgsql-docs@lists.postgresql.org; Wed, 23 Jul 2025 16:30:03 +0000 Content-Type: multipart/mixed; boundary="===============3842476118809560668==" MIME-Version: 1.0 Subject: Clarification on the column order of UNION, INTERSECT, and EXCEPT To: pgsql-docs@lists.postgresql.org From: PG Doc comments form Cc: ruud@chorus.one Reply-To: ruud@chorus.one, pgsql-docs@lists.postgresql.org Date: Wed, 23 Jul 2025 16:29:16 +0000 Message-ID: <175328815637.785.8823107219955913007@wrigleys.postgresql.org> X-Auto-Response-Suppress: All Auto-Submitted: auto-generated List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --===============3842476118809560668== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 VGhlIGZvbGxvd2luZyBkb2N1bWVudGF0aW9uIGNvbW1lbnQgaGFzIGJlZW4gbG9nZ2VkIG9uIHRo ZSB3ZWJzaXRlOgoKUGFnZTogaHR0cHM6Ly93d3cucG9zdGdyZXNxbC5vcmcvZG9jcy8xNy9xdWVy aWVzLXVuaW9uLmh0bWwKRGVzY3JpcHRpb246CgpXaGVuIGNvbWJpbmluZyBxdWVyaWVzIHdpdGgg VU5JT04sIElOVEVSU0VDVCwgb3IgRVhDRVBULCBjb2x1bW5zIGFyZSBtYXRjaGVkCmluIHRoZSBv cmRlciBpbiB3aGljaCB0aGV5IG9jY3VyLCBhbmQgbm90IGJ5IGNvbHVtbiBuYW1lLiBUaGlzIGNh biBiZQp1bmV4cGVjdGVkLCBhbmQgSSB0aGluayBpdCB3b3VsZCBiZSBoZWxwZnVsIHRvIGNhbGwg aXQgb3V0IGV4cGxpY2l0bHkgaW4gdGhlCmRvY3VtZW50YXRpb24uCgpDb25zaWRlciB0aGUgZm9s bG93aW5nIHF1ZXJ5OgoKICAgIGNyZWF0ZSB0YWJsZSB3aWRnZXRzICh4IHRleHQsIHkgdGV4dCk7 CiAgICBpbnNlcnQgaW50byB3aWRnZXRzICh4LCB5KSB2YWx1ZXMgKCd4JywgJ3knKTsKICAgIChz ZWxlY3QgeCwgeSBmcm9tIHdpZGdldHMpIHVuaW9uIGFsbCAoc2VsZWN0IHksIHggZnJvbSB3aWRn ZXRzKTsKCk9uIFBvc3RnZXMgMTcuNSwgdGhpcyByZXR1cm5zOgoKICAgIHggeQogICAg4pSAIOKU gAogICAgeCB5CiAgICB5IHgKCk5vdGUgdGhhdCBpdCByZXR1cm5zIGEgdmFsdWUgJ3knIGZvciBj b2x1bW4gJ3gnLCBkZXNwaXRlIGNvbHVtbiB4IG9ubHkKY29udGFpbmluZyB0aGUgdmFsdWUgJ3gn LiBUaGlzIHJlc3VsdCBtYWtlcyBzZW5zZSBpZiB5b3UgdGhpbmsgb2Ygcm93cyBhcwphbm9ueW1v dXMgdHVwbGVzIChvcmRlcmVkIGxpc3RzIG9mIHZhbHVlcyksIGJ1dCBpdCBjYW4gYmUgc3VycHJp c2luZyB3aGVuCnlvdSBleHBlY3Qgcm93cyB0byBiZWhhdmUgbGlrZSBzdHJ1Y3RzL2RpY3Rpb25h cmllcyB3aXRoIG5hbWVkIGZpZWxkcy4KClRoaXMgYmVoYXZpb3IgY2FuIGJlIGVzcGVjaWFsbHkg dHJpY2t5IHdoZW4gY29sdW1ucyB4IGFuZCB5IGhhdmUgdGhlIHNhbWUKZGF0YSB0eXBlLCBzdWNo IHRoYXQgY29uZnVzaW5nIHRoZW0gZG9lcyBub3QgdHJpZ2dlciBhbiBlcnJvci4gSW4gcGFydGlj dWxhcgp3aGVuIHRoZSB2YWx1ZXMgYXJlIHNpbWlsYXIgKGUuZy4gbnVtZXJpYyBkYXRhIGluIHRo ZSBzYW1lIHJhbmdlKSwgaXQgbWF5Cm5vdCBiZSBvYnZpb3VzIGZyb20gdGhlIHJlc3VsdCB0aGF0 IGRhdGEgZnJvbSBkaWZmZXJlbnQgY29sdW1ucyBnb3QgbWl4ZWQKdXAuCgpJIHJlYWQgdGhlIGRv Y3VtZW50YXRpb24gYXQKCiAtIGh0dHBzOi8vd3d3LnBvc3RncmVzcWwub3JnL2RvY3MvMTcvcXVl cmllcy11bmlvbi5odG1sCiAtIGh0dHBzOi8vd3d3LnBvc3RncmVzcWwub3JnL2RvY3MvMTcvdHlw ZWNvbnYtdW5pb24tY2FzZS5odG1sCiAtIGh0dHBzOi8vd3d3LnBvc3RncmVzcWwub3JnL2RvY3Mv MTcvc3FsLXNlbGVjdC5odG1sI1NRTC1VTklPTgoKVGhlc2UgcGFnZXMgbWVudGlvbiB0aGF0IHRo ZSBvcGVyYW5kcyBuZWVkIHRvIGJlIGNvbXBhdGlibGUsIGUuZy4g4oCYSW4gb3JkZXIKdG8gY2Fs Y3VsYXRlIHRoZSB1bmlvbiwgaW50ZXJzZWN0aW9uLCBvciBkaWZmZXJlbmNlIG9mIHR3byBxdWVy aWVzLCB0aGUgdHdvCnF1ZXJpZXMgbXVzdCBiZSDigJx1bmlvbiBjb21wYXRpYmxl4oCdLCB3aGlj aCBtZWFucyB0aGF0IHRoZXkgcmV0dXJuIHRoZSBzYW1lCm51bWJlciBvZiBjb2x1bW5zIGFuZCB0 aGUgY29ycmVzcG9uZGluZyBjb2x1bW5zIGhhdmUgY29tcGF0aWJsZSBkYXRhIHR5cGVzLAphcyBk ZXNjcmliZWQgaW4gU2VjdGlvbiAxMC41LuKAmSBhbmQg4oCYb3BlcmFuZHMgb2YgdGhlIFVOSU9O IG11c3QgcHJvZHVjZSB0aGUKc2FtZSBudW1iZXIgb2YgY29sdW1ucywgYW5kIGNvcnJlc3BvbmRp bmcgY29sdW1ucyBtdXN0IGJlIG9mIGNvbXBhdGlibGUgZGF0YQp0eXBlc+KAmS4gSXQgZG9lcyBu b3QgZXhwbGljaXRseSBzdGF0ZSB0aGF0IOKAnGNvcnJlc3BvbmRpbmcgY29sdW1uc+KAnSBtZWFu cwrigJxjb3JyZXNwb25kaW5nIGJ5IGluZGV44oCdLCBhbmQgbm90IOKAnGNvcnJlc3BvbmRpbmcg YnkgbmFtZeKAnS4gSSB0aGluayBpdCB3b3VsZApiZSBoZWxwZnVsIHRvIGNsYXJpZnkgdGhhdCwg YW5kIG1heWJlIGV2ZW4gd2FybiBhYm91dCBpdC4KCktpbmQgcmVnYXJkcywKUnV1ZAo= --===============3842476118809560668==--