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 1mvXig-0002XD-KR for pgsql-hackers@arkaria.postgresql.org; Fri, 10 Dec 2021 04:41:18 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1mvXif-0003b1-2g for pgsql-hackers@arkaria.postgresql.org; Fri, 10 Dec 2021 04:41:17 +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 1mvXie-0003as-Mh for pgsql-hackers@lists.postgresql.org; Fri, 10 Dec 2021 04:41:16 +0000 Received: from smtp-fw-80007.amazon.com ([99.78.197.218]) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mvXia-0007ua-8K for pgsql-hackers@lists.postgresql.org; Fri, 10 Dec 2021 04:41:16 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1639111272; x=1670647272; h=from:to:cc:date:message-id:references:in-reply-to: content-id:content-transfer-encoding:mime-version:subject; bh=BjpHnCyha/5bA6qBKGXJmHHRJHnV0FAqQlV+1OTsTYM=; b=U7bzbg1DltTMjBaKR+OPQ1n85lSajTgwSDLm5clXft+1jGwz7jJh9gsM GKVrTEZ+HQYDr8vZg/1CO7uXuSGT532e+CbSphCpjVpa67chJTii5FrcD O/bfaD914gc0oIN1k66e5bsR3b3urusQ3U927ZCjCZC74KKVR/ogYWrqO 4=; X-IronPort-AV: E=Sophos;i="5.88,194,1635206400"; d="scan'208";a="47505818" Subject: Re: do only critical work during single-user vacuum? Thread-Topic: do only critical work during single-user vacuum? Received: from pdx4-co-svc-p1-lb2-vlan2.amazon.com (HELO email-inbound-relay-pdx-2a-6435a935.us-west-2.amazon.com) ([10.25.36.210]) by smtp-border-fw-80007.pdx80.corp.amazon.com with ESMTP; 10 Dec 2021 04:41:09 +0000 Received: from EX13MTAUWB001.ant.amazon.com (pdx1-ws-svc-p6-lb9-vlan3.pdx.amazon.com [10.236.137.198]) by email-inbound-relay-pdx-2a-6435a935.us-west-2.amazon.com (Postfix) with ESMTPS id 0849142537; Fri, 10 Dec 2021 04:41:09 +0000 (UTC) Received: from EX13D03UWC004.ant.amazon.com (10.43.162.49) by EX13MTAUWB001.ant.amazon.com (10.43.161.207) with Microsoft SMTP Server (TLS) id 15.0.1497.26; Fri, 10 Dec 2021 04:41:07 +0000 Received: from EX13D03UWC004.ant.amazon.com (10.43.162.49) by EX13D03UWC004.ant.amazon.com (10.43.162.49) with Microsoft SMTP Server (TLS) id 15.0.1497.26; Fri, 10 Dec 2021 04:41:07 +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 04:41:07 +0000 From: "Bossart, Nathan" To: Peter Geoghegan CC: John Naylor , Andres Freund , PostgreSQL Hackers Thread-Index: AQHX7WLtjgiCktmTKEyxmizT05CPCawq7viA//+wbwA= Date: Fri, 10 Dec 2021 04:41:07 +0000 Message-ID: References: <3F7FD826-36EF-4991-AB37-81675AFEBF54@amazon.com> <0544901A-0FC5-46B5-801B-F30AC0B81A19@amazon.com> In-Reply-To: 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: [10.43.160.223] Content-Type: text/plain; charset="utf-8" Content-ID: <2C6AC0BAA3F4FC4BA19C87070794C61E@amazon.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk T24gMTIvOS8yMSwgNToyNyBQTSwgIlBldGVyIEdlb2doZWdhbiIgPHBnQGJvd3QuaWU+IHdyb3Rl Og0KPiBJIGltYWdpbmUgdGhhdCB0aGlzIG5ldyBmdW5jdGlvbiAodG8gaGFuZGxlIG1haW50ZW5h bmNlIHRhc2tzIGluIHRoZQ0KPiBldmVudCBvZiBhIHdyYXBhcm91bmQgZW1lcmdlbmN5KSB3b3Vs ZCBvdXRwdXQgaW5mb3JtYXRpb24gYWJvdXQgaXRzDQo+IHByb2dyZXNzLiBGb3IgZXhhbXBsZSwg aXQgd291bGQgbWFrZSBhbiB1cC1mcm9udCBkZWNpc2lvbiBhYm91dCB3aGljaA0KPiB0YWJsZXMg bmVlZGVkIHRvIGJlIHZhY3V1bWVkIGluIG9yZGVyIGZvciB0aGUgY3VycmVudCBEQidzDQo+IGRh dGZyb3plbnhpZCB0byBiZSBzdWZmaWNpZW50bHkgbmV3LCBiZWZvcmUgaXQgc3RhcnRlZCBhbnl0 aGluZyAod2l0aA0KPiBoYW5kbGluZyBmb3IgZWRnZS1jYXNlcyB3aXRoIG1hbnkgdGFibGVzLCBw ZXJoYXBzKS4gSXQgbWlnaHQgYWxzbyBzaG93DQo+IHRoZSBzaXplIG9mIGVhY2ggdGFibGUsIGFu ZCBzaG93IGFub3RoZXIgbGluZSBmb3IgZWFjaCB0YWJsZSB0aGF0IGhhcw0KPiBiZWVuIHByb2Nl c3NlZCBzbyBmYXIsIGFzIGEgcnVkaW1lbnRhcnkgcHJvZ3Jlc3MgaW5kaWNhdG9yLg0KDQpJIGxp a2UgdGhlIGlkZWEgb2YgaGF2aW5nIGEgYnVpbHQtaW4gZnVuY3Rpb24gdGhhdCBkb2VzIHRoZSBi YXJlDQptaW5pbXVtIHRvIHJlc29sdmUgd3JhcGFyb3VuZCBlbWVyZ2VuY2llcywgYW5kIEkgdGhp bmsgcHJvdmlkaW5nIHNvbWUNCnNvcnQgb2Ygc2ltcGxlIHByb2dyZXNzIGluZGljYXRvciAoZXZl biBpZiBydWRpbWVudGFyeSkgd291bGQgYmUgdmVyeQ0KdXNlZnVsLiAgSSBpbWFnaW5lIHRoZSBk ZWNpc2lvbiBsb2dpYyBjb3VsZCBiZSBwcmV0dHkgc2ltcGxlLiAgSWYNCndlJ3JlIG9ubHkgaW50 ZXJlc3RlZCBpbiBnZXR0aW5nIHRoZSBjbHVzdGVyIG91dCBvZiBhIHdyYXBhcm91bmQNCmVtZXJn ZW5jeSwgd2UgY2FuIHByb2JhYmx5IGp1c3QgbG9vayBmb3IgYWxsIHRhYmxlcyB3aXRoIGFuIGFn ZSBvdmVyDQp+MkIuDQoNCk5hdGhhbg0KDQo=