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 1skGpO-009JbZ-2O for pgsql-committers@arkaria.postgresql.org; Sat, 31 Aug 2024 05:39:14 +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 1skGoO-000YRr-6A for pgsql-committers@arkaria.postgresql.org; Sat, 31 Aug 2024 05:38:12 +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 1skGoN-000YRe-UO for pgsql-committers@lists.postgresql.org; Sat, 31 Aug 2024 05:38:12 +0000 Received: from mahout.postgresql.org ([2001:4800:3e1:1::227]) by magus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1skGoJ-002MMV-ID for pgsql-committers@lists.postgresql.org; Sat, 31 Aug 2024 05:38:11 +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=3KjQpjVXKptYjoqMBRaByp/A3YKRXRvmOnS6isEXCNY=; b=AIeAhMwGKXrLw7iA8Juxe4mfpi T6TCfE9n63zG3BAhNpAraRCFWbN0Bd1Y8+snoTXGmLI++SOWShYoxRxrTy47czGu+CUvvnbWe0+TZ y/Vta+REqdlNXz6PhiGOIZ+YnSsHMf1TLEpJZvpvt0SScE3GGKB/dVDzWz9B8LPYBgKw9dAmvgSz9 ZgzzKVpZyMM0iCoR+aBGd/2G+GwMmJE7WJkLd0FaKaspFL2Sn8xM9asGXhCJfWSdVc2KjFOu4vpMW /IQuFsopGZg1IxeiZEYJ+51vWqfuVYP0lsk7e3We3ttd1rpxco5mLe+iWJRlNXnMWK7HNSySKI4qb lX9SdfIQ==; 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 1skGoJ-007YuK-2b for pgsql-committers@lists.postgresql.org; Sat, 31 Aug 2024 05:38:07 +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 1skGoJ-002EFP-4n for pgsql-committers@lists.postgresql.org; Sat, 31 Aug 2024 05:38:07 +0000 Content-Type: multipart/mixed; boundary="===============6667425533269318186==" 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 05:38:07 +0000 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --===============6667425533269318186== 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 CgpCcmFuY2gKLS0tLS0tClJFTF8xN19TVEFCTEUKCkRldGFpbHMKLS0tLS0tLQpodHRwczovL2dp dC5wb3N0Z3Jlc3FsLm9yZy9wZy9jb21taXRkaWZmLzNlZDM2ODM2MThjYjZhOWIxMGRjNTI5Nzc1 MWZhOGI3ZmU3ZTM2ZTEKCk1vZGlmaWVkIEZpbGVzCi0tLS0tLS0tLS0tLS0tCnNyYy9iYWNrZW5k L3N0b3JhZ2UvYWlvL3JlYWRfc3RyZWFtLmMgfCA4MSArKysrKysrKysrLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLQoxIGZpbGUgY2hhbmdlZCwgMjMgaW5zZXJ0aW9ucygrKSwgNTggZGVsZXRpb25z KC0pCgo= --===============6667425533269318186==--