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 1skGpI-009JaK-PT for pgsql-committers@arkaria.postgresql.org; Sat, 31 Aug 2024 05:39:09 +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 1skGoG-000Xmv-V4 for pgsql-committers@arkaria.postgresql.org; Sat, 31 Aug 2024 05:38:05 +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 1skGoG-000Xkz-Gy for pgsql-committers@lists.postgresql.org; Sat, 31 Aug 2024 05:38:05 +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 4.94.2) (envelope-from ) id 1skGoD-002HrT-OQ for pgsql-committers@lists.postgresql.org; Sat, 31 Aug 2024 05:38:03 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=postgresql.org; s=20171124; h=Date:Message-Id:Subject:To:From:MIME-Version: Content-Type:Sender:Reply-To:Cc:Content-Transfer-Encoding:Content-ID: Content-Description:In-Reply-To:References; bh=HEWKk0ErxLnpgXIo4PDgR7ycy4OxinJznB65JgBtxZY=; b=1XsBB38af4aXEySGl8L+7ADsIX 7TUqs2358EhXf+1Ic2en+OZ2wvybqWOUyh52uwwb0NFXMYnbgKhffOOKTezlUo+BtUPx7Yq+clFjP zQUY4adseUJ3PHzQJR6NF4DxFYaTo5L+s5kATZrbwdGfEaeM38MvPZgsWHi9mrJzthcTEiHtOSOq6 DFPTU3SEB1f+9t1s5dZM8u2KA5x+hvxqQaTOf3cQ2Q35g6APJcqoPf1f0RCpjsw9+kSvU4SuTttwD 5+2HZLiM1iYIYdG3i6KZdu9QMGw5jzhEwWLtW1K023w5lK0Usd2kttmuTdaqGSowNbmQdqR1dKJKt dFiNXLHg==; Received: from gemulon.postgresql.org ([2001:4800:3e1:1::198]) by mahout.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1skGoC-007Ytw-As for pgsql-committers@lists.postgresql.org; Sat, 31 Aug 2024 05:38:00 +0000 Received: from localhost ([127.0.0.1] helo=gemulon.postgresql.org) by gemulon.postgresql.org with esmtp (Exim 4.94.2) (envelope-from ) id 1skGoB-002EEo-Ci for pgsql-committers@lists.postgresql.org; Sat, 31 Aug 2024 05:37:59 +0000 Content-Type: multipart/mixed; boundary="===============0596882708391522215==" MIME-Version: 1.0 From: Thomas Munro To: pgsql-committers@lists.postgresql.org Subject: pgsql: Fix unfairness in all-cached parallel seq scan. X-Auto-Response-Suppress: All Auto-Submitted: auto-generated Message-Id: Date: Sat, 31 Aug 2024 05:37:59 +0000 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --===============0596882708391522215== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Rml4IHVuZmFpcm5lc3MgaW4gYWxsLWNhY2hlZCBwYXJhbGxlbCBzZXEgc2Nhbi4KCkNvbW1pdCBi NWE5YjE4YyBpbnRyb2R1Y2VkIGJsb2NrIHN0cmVhbWluZyBpbmZyYXN0cnVjdHVyZSB3aXRoIGEg c3BlY2lhbApmYXN0IHBhdGggZm9yIGFsbC1jYWNoZWQgc2NhbnMsIGFuZCBjb21taXQgYjdiMGYz ZjIgY29ubmVjdGVkIHRoZQppbmZyYXN0cnVjdHVyZSB1cCB0byBzZXF1ZW50aWFsIHNjYW5zLiAg T25lIG9mIHRoZSBmYXN0IHBhdGgKbWljcm8tb3B0aW1pemF0aW9ucyBoYWQgYW4gdW5pbnRlbmRl ZCBjb25zZXF1ZW5jZTogaXQgaW50ZXJmZXJlZCB3aXRoCnBhcmFsbGVsIHNlcXVlbnRpYWwgc2Nh bidzIGJsb2NrIHJhbmdlIGFsbG9jYXRvciAoZnJvbSBjb21taXQgNTY3ODhkMjEpLAp3aGljaCBo YXMgaXRzIG93biByYW1wLXVwIGFuZCByYW1wLWRvd24gYWxnb3JpdGhtIHdoZW4gaGFuZGluZyBv dXQKZ3JvdXBzIG9mIHBhZ2VzIHRvIHdvcmtlcnMuICBBIHNjYW4gb2YgYW4gYWxsLWNhY2hlZCB0 YWJsZSBjb3VsZCBnaXZlCmV4dHJhIGJsb2NrcyB0byBvbmUgd29ya2VyLCB3aGVuIG90aGVycyBo YWQgZmluaXNoZWQuICBJbiBzb21lIHBsYW5zCihwcm9iYWJseSBhbHJlYWR5IHZlcnkgYmFkIHBs YW5zLCBzdWNoIGFzIHRoZSBvbmUgcmVwb3J0ZWQgYnkKQWxleGFuZGVyKSwgdGhlIHVuZmFpcm5l c3MgY291bGQgYmUgbWFnbmlmaWVkLgoKQW4gaW50ZXJuYWwgYnVmZmVyIG9mIDE2IGJsb2NrIG51 bWJlcnMgaXMgcmVtb3ZlZCwga2VlcGluZyBqdXN0IGEgc2luZ2xlCmJsb2NrIGJ1ZmZlciBmb3Ig dGVjaG5pY2FsIHJlYXNvbnMuCgpCYWNrLXBhdGNoIHRvIDE3LgoKUmVwb3J0ZWQtYnk6IEFsZXhh bmRlciBMYWtoaW4gPGV4Y2x1c2lvbkBnbWFpbC5jb20+CkRpc2N1c3Npb246IGh0dHBzOi8vcG9z dGdyLmVzL20vNjNhNjM2OTAtZGQ5Mi1jODA5LTBiNDctYWYwNTQ1OWU5NWQxJTQwZ21haWwuY29t CgpCcmFuY2gKLS0tLS0tCm1hc3RlcgoKRGV0YWlscwotLS0tLS0tCmh0dHBzOi8vZ2l0LnBvc3Rn cmVzcWwub3JnL3BnL2NvbW1pdGRpZmYvNGVmZmQwODQ0ZGFmNDFhOTYyYzA1MTg4YjcxOWRmNzVj YThjZWQ5MwoKTW9kaWZpZWQgRmlsZXMKLS0tLS0tLS0tLS0tLS0Kc3JjL2JhY2tlbmQvc3RvcmFn ZS9haW8vcmVhZF9zdHJlYW0uYyB8IDgxICsrKysrKysrKystLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tCjEgZmlsZSBjaGFuZ2VkLCAyMyBpbnNlcnRpb25zKCspLCA1OCBkZWxldGlvbnMoLSkKCg== --===============0596882708391522215==--