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 1uxAFW-00BVkF-FP for pgsql-hackers@arkaria.postgresql.org; Fri, 12 Sep 2025 20:20:02 +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 1uxAET-003lOk-Sj for pgsql-hackers@arkaria.postgresql.org; Fri, 12 Sep 2025 20:18:58 +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 1uxAET-003lOY-8d for pgsql-hackers@lists.postgresql.org; Fri, 12 Sep 2025 20:18:58 +0000 Received: from mail-pj1-x1035.google.com ([2607:f8b0:4864:20::1035]) by magus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.96) (envelope-from ) id 1uxAEQ-000Tun-03 for pgsql-hackers@postgresql.org; Fri, 12 Sep 2025 20:18:57 +0000 Received: by mail-pj1-x1035.google.com with SMTP id 98e67ed59e1d1-32da88701c7so2437543a91.0 for ; Fri, 12 Sep 2025 13:18:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=leadboat.com; s=google; t=1757708333; x=1758313133; darn=postgresql.org; h=user-agent:in-reply-to:content-disposition:mime-version:references :message-id:subject:cc:to:from:date:from:to:cc:subject:date :message-id:reply-to; bh=Nq6CkuJJCt5bRF9Jrm3KK9lTDsgVMmTnthG2OafcWPw=; b=SmC8VuWk7hfJVJEQt8UWpDFlpifxvu6iG50mVtkYKagk0vUskj9dJyfTkjP9iwCh6d sVZyhw2TM6XVG2ePwLuQc69vjqG85MDuHSxS6eqC/ixG5IKfvhqb0eNTYEQuMwaGEJCS EKCYMgLUd/QZMEp7mhj0Kdn7GMYsXF3IoOV3E= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1757708333; x=1758313133; h=user-agent:in-reply-to:content-disposition:mime-version:references :message-id:subject:cc:to:from:date:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Nq6CkuJJCt5bRF9Jrm3KK9lTDsgVMmTnthG2OafcWPw=; b=FrhIeZw72PWVDXC2bDobJ0lUhRQdakJLwHL7QS1IASL1uIStba6/zqGBL4z9LJYXou ORLWTaawBzFzERg4YYLRqY5GLiD3UhnOIJ5aYlfMAIBdZ3MUmYsarm3gSe38DKsoH8QK mYk93NvOBiRK/oTMqJnWLlSy6vKUrvfMEFbPuqqpcy9fEsf/BqQB+udyjVLEavhPlAiu UpJ2ycHwESoEXmBNgeh46waB0++TxdqqM6M2GIP3D+alSZNqKpGM8WRSMtVzP6WhVdxr YI5TMrr5yBaRTVWYSZ+4W7Edix9mb1vYeblgqpgTsYY5IEgUV0I5sL4tr0WoLMOEKyHX XELA== X-Forwarded-Encrypted: i=1; AJvYcCXQkt+/Ro/dXgp6pQM9sNktvdb7B3HywdBWX7UI8/yAhNDsi8J1hoOWmNOu8reXSzaMUsr+UMFDqb3C4RTh@postgresql.org X-Gm-Message-State: AOJu0YxvcLnPZCovrAxv8Dvdp1xRP2I5T1RBDn6FWldOxNriaml9HcUy TmTvCefMwkZX8SunA01AbnJNxc1MCaTk9wvUfT49KZR4kDzEG/RtwZIjeFV1yLrw4Q== X-Gm-Gg: ASbGnct20fOzGCfyA7BwTFRziosJL0KyIXwQcN8ctNZ/i8Tv9X+wFPMqIx5AbM01iT4 8Ap9LsApvTCKmCf2AlpRVU5Ry7OkKFNGlHsgGHsliUdA1Pe9r5hyuWgZZ0+U5yDJrIgSK6yKqBR ReXd1+7o1EHVkXYxMqZoNvAhgm+QU08gsyXbIjq1iy1o3UnJLU6fewyEg+Tjh4jtuqhtNM78z77 uL7/bBk7CwjOjPwfLPGUwjh4Ta2grj+HptRD1K3uhzYqDS5lo0qIvqjhY4PLPzmr+Gur95BMQ9Q 0tyagf8YKwgQacy1iUaR9/AymEkvvjpMpORdnkPXcIRQ8pymoJvBYuhlgWzi7Vtq+JiNh1PCRyr TWftAkgDDjmHwDUtCYFn3NpxJG6LE7VI9VD/T0JTKwRELprhctoU= X-Google-Smtp-Source: AGHT+IE83yY8QT66AZnVvQ2uQrax0fyGQjoCY2vNpWbm+IoeXskk6ReMvGKz8kQfj+jgVSaGNaBH3w== X-Received: by 2002:a17:90b:2fcc:b0:32b:e3af:3c6c with SMTP id 98e67ed59e1d1-32de4f7dd33mr3922360a91.22.1757708333074; Fri, 12 Sep 2025 13:18:53 -0700 (PDT) Received: from google.com (c-73-15-160-255.hsd1.ca.comcast.net. [73.15.160.255]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-32dd9809e5asm6531917a91.3.2025.09.12.13.18.48 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 12 Sep 2025 13:18:48 -0700 (PDT) Date: Fri, 12 Sep 2025 13:18:47 -0700 From: Noah Misch To: Tom Lane Cc: Smolkin Grigory , pgsql-hackers@postgresql.org Subject: Re: race condition in pg_class Message-ID: <20250912201847.07.nmisch@google.com> References: <20231027214946.79.nmisch@google.com> <1617596.1698446455@sss.pgh.pa.us> <20231027232612.99.nmisch@google.com> <20231102030915.d3.nmisch@google.com> <20240512232923.aa.nmisch@google.com> <1802710.1757608564@sss.pgh.pa.us> <20250911185729.ad.nmisch@google.com> <1826823.1757619287@sss.pgh.pa.us> <20250911224216.4f.nmisch@google.com> <2028243.1757643179@sss.pgh.pa.us> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2028243.1757643179@sss.pgh.pa.us> User-Agent: Mutt/2.2.12 (2023-09-09) List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk On Thu, Sep 11, 2025 at 10:12:59PM -0400, Tom Lane wrote: > Noah Misch writes: > > On Thu, Sep 11, 2025 at 03:34:47PM -0400, Tom Lane wrote: > >> However ... it might still be okay to cram it into v18. Do you have > >> an opinion about that? > > > Feels like something I wouldn't do, but I don't have a concrete reason. > > I'm content with making it master-only. I've pushed the test update to master.