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 1mvUSI-0002x4-Er for pgsql-hackers@arkaria.postgresql.org; Fri, 10 Dec 2021 01:12:10 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1mvUSH-0002rP-8w for pgsql-hackers@arkaria.postgresql.org; Fri, 10 Dec 2021 01:12:09 +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 1mvUSG-0002rG-Vk for pgsql-hackers@lists.postgresql.org; Fri, 10 Dec 2021 01:12:08 +0000 Received: from smtp-fw-80006.amazon.com ([99.78.197.217]) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mvUSA-0006DP-Cd for pgsql-hackers@lists.postgresql.org; Fri, 10 Dec 2021 01:12:08 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1639098723; x=1670634723; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-id:content-transfer-encoding: mime-version; bh=4MtpbreXyfI1bVnhtEaKz/eGPVOGqu1ReK1yqkpWUDA=; b=ulnJVc9WOD5WAm88tMjMwps0LeHMgj55lZVU7ToXrodJKDvTMkkQGbZY 1acG3Lppe5ZlLjxRN6zy2CN3VCZ5aOkr7Uf0V/omuE59PsxSyHGaeyTvP qZC+wvwooYYT3cPb9nXZKbz22E835Z+sEcCVpXZUV7KwtvDTnk2Wob8No w=; X-IronPort-AV: E=Sophos;i="5.88,194,1635206400"; d="scan'208";a="47474098" Received: from pdx4-co-svc-p1-lb2-vlan3.amazon.com (HELO email-inbound-relay-iad-1d-8ac79c09.us-east-1.amazon.com) ([10.25.36.214]) by smtp-border-fw-80006.pdx80.corp.amazon.com with ESMTP; 10 Dec 2021 01:12:00 +0000 Received: from EX13MTAUWB001.ant.amazon.com (iad12-ws-svc-p26-lb9-vlan3.iad.amazon.com [10.40.163.38]) by email-inbound-relay-iad-1d-8ac79c09.us-east-1.amazon.com (Postfix) with ESMTPS id 48EDA8150A; Fri, 10 Dec 2021 01:11:58 +0000 (UTC) Received: from EX13D03UWC003.ant.amazon.com (10.43.162.79) by EX13MTAUWB001.ant.amazon.com (10.43.161.249) with Microsoft SMTP Server (TLS) id 15.0.1497.26; Fri, 10 Dec 2021 01:11:57 +0000 Received: from EX13D03UWC004.ant.amazon.com (10.43.162.49) by EX13D03UWC003.ant.amazon.com (10.43.162.79) with Microsoft SMTP Server (TLS) id 15.0.1497.26; Fri, 10 Dec 2021 01:11:57 +0000 Received: from EX13D03UWC004.ant.amazon.com ([10.43.162.49]) by EX13D03UWC004.ant.amazon.com ([10.43.162.49]) with mapi id 15.00.1497.026; Fri, 10 Dec 2021 01:11:57 +0000 From: "Bossart, Nathan" To: Peter Geoghegan , John Naylor CC: Andres Freund , PostgreSQL Hackers Subject: Re: do only critical work during single-user vacuum? Thread-Topic: do only critical work during single-user vacuum? Thread-Index: AQHX7WLtjgiCktmTKEyxmizT05CPCQ== Date: Fri, 10 Dec 2021 01:11:57 +0000 Message-ID: <0544901A-0FC5-46B5-801B-F30AC0B81A19@amazon.com> References: <3F7FD826-36EF-4991-AB37-81675AFEBF54@amazon.com> In-Reply-To: <3F7FD826-36EF-4991-AB37-81675AFEBF54@amazon.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.43.162.57] Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk T24gMTIvOS8yMSwgNTowNiBQTSwgIkJvc3NhcnQsIE5hdGhhbiIgPGJvc3NhcnRuQGFtYXpvbi5j b20+IHdyb3RlOg0KPiBPbiAxMi85LzIxLCA0OjM2IFBNLCAiUGV0ZXIgR2VvZ2hlZ2FuIiA8cGdA Ym93dC5pZT4gd3JvdGU6DQo+PiBXZSBjb3VsZCB0aGVuIGFwcGx5IHRoaXMgY3JpdGVyaWEgaW4g bmV3IGNvZGUgdGhhdCBpbXBsZW1lbnRzIHRoaXMNCj4+ICJiaWcgcmVkIGJ1dHRvbiIgKG1heWJl IHRoaXMgaXMgYSBuZXcgb3B0aW9uIGZvciB0aGUgcG9zdGdyZXMNCj4+IGV4ZWN1dGFibGUsIGEg bGl0dGxlIGxpa2UgLS1zaW5nbGU/KS4gU29tZXRoaW5nIHRoYXQncyByZWFzb25hYmx5DQo+PiB0 YXJnZXRlZCwgYW5kIGRlYWQgc2ltcGxlIHRvIHVzZS4NCj4NCj4gKzENCg0KQXMgQW5kcmVzIG5v dGVkLCBzdWNoIGEgZmVhdHVyZSBtaWdodCBiZSB1c2VmdWwgZHVyaW5nIG5vcm1hbA0Kb3BlcmF0 aW9uLCB0b28uICBQZXJoYXBzIHRoZSB2YWN1dW1kYiAtLW1pbi14aWQtYWdlIHN0dWZmIHNob3Vs ZCBiZQ0KbW92ZWQgdG8gYSBuZXcgVkFDVVVNIG9wdGlvbi4NCg0KTmF0aGFuDQoNCg==