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 4.96) (envelope-from ) id 1vfWct-002Wcg-1f for pgsql-hackers@arkaria.postgresql.org; Tue, 13 Jan 2026 05:07:32 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.96) (envelope-from ) id 1vfWcq-002tf6-2Y for pgsql-hackers@arkaria.postgresql.org; Tue, 13 Jan 2026 05:07:29 +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 4.96) (envelope-from ) id 1vfWcq-002tey-1Y for pgsql-hackers@lists.postgresql.org; Tue, 13 Jan 2026 05:07:28 +0000 Received: from mail-qt1-x844.google.com ([2607:f8b0:4864:20::844]) by magus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.96) (envelope-from ) id 1vfWco-0009k4-1b for pgsql-hackers@lists.postgresql.org; Tue, 13 Jan 2026 05:07:28 +0000 Received: by mail-qt1-x844.google.com with SMTP id d75a77b69052e-4ee13dc0c52so62134511cf.2 for ; Mon, 12 Jan 2026 21:07:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1768280844; x=1768885644; darn=lists.postgresql.org; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=TVbAo3hOYkeLoAeU8yZ2j9pT6ZIUP5v+2RDxkrnkS3I=; b=ce5gDWkNc7k+giytPe+I7E0H7TwZYVXTuxfqx9OZW+Zwd7NCWStrZIwI5brRMGpM5L lCBhj0AixafQ9qAcHUGsVgItnzn4NZwQo/257+UcjK7RXb0D+mewx4/N//b+T5sWt6Oh xs1qLPI4fSDRTONJeekHOZetpN0WdUZdjWvmqTlyQc9ItOnL0+cvEtjP7WiTBq9HFuJU yZaQ/MWppY0DfwffIxukVQdvyDAoxew5vFSPoEVTQtzQzqDgPBJMIAHFHJDPG81Lk/Lq x7gnYrdBrNm7/WVMaNL6JAXBxEWtTkeTIqqkHfr4jVMsensmjlBl5XglGu6KhguSRpDA Znyw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1768280844; x=1768885644; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=TVbAo3hOYkeLoAeU8yZ2j9pT6ZIUP5v+2RDxkrnkS3I=; b=vsH2E+VH8dvIxMAA9bWgHOYs6Diz59lkzTlcFJ/0HhZK2A98IGUTNzUX7p41KhOSbN nsYFa+aYQR8nMnV7osgv/Dguy8yUm+jWlWxtjTIlVWz7nIPJJKNoULQPl36wQARE2siw MMizl+xbBOFa2pf2w7Z5QZLDbAj8AzleXZRxoghbhJUFM+OWUx85jJZNN29l1iWkncJK 3ZD4UwBmt5LusiROQsV5K1WurIRomqEv787RwFKXDOGlZ5sOuqCv0L4e5c8+jh+tg4mx uOhjMOIuAj5aK4dE0RW/5RAL7XUffmJvu3YIOMcEFN9wcVcB/MtJJUJ85ZlUuxsUca6K r3BQ== X-Gm-Message-State: AOJu0YxJSPpIiS7ELBbO0gSkCTf0QqcUSDtc0GgwF5lrGTNQ0Uh3Fmic b4yp41bAQWbvFXSDFjpChZy8nlLvbkXmyeIrLDvAmJCgcwkEaZUeSnmYDrzadJ/jV94n44MO9Kb QCzNVYKZvmE9Rk2nVo5lHFP2SfbrVHQc= X-Gm-Gg: AY/fxX5qv46tbCwaVkdAdTV4TY8Nnz5uFaHvqssRaKtXc+550b4F+mvqKLw7WWqvIQe w8CHhxKHWjn+vZd4baTXy9iguBAm7ijHzirGHLfWe6YS6/fc6s6HS5gof/dv5gFVV4Hq81FfHwR GxX9gY/Abtitbo0TQX/420UhnXSNbjfiU48IM4RncIIcprMxgpMWRCwSDcLhpmmg+R3NZTCB6mp JGtN/98NuJvi72+fHRH8OR4Sfh/WZC/7ux8mcicN2sgONn+RjnVSSciyZjbowGrT6GXBTARshEM eHIt4a8noFEYlpRG6Ueo8EISghXxQ0vpqYNtsGObbm4lkRmKB/DNwhUdl8GHTwb9JPzkZhjZupc XfuyUVI8NtvhRxvY= X-Google-Smtp-Source: AGHT+IE0Ccxnjld3Y00CQ+0LlS4BbGxxHYY/Au4ehjxAUgBHKc6EpP+A+tLPXEQ2qsCTyOU8PQB94C3HLBaH2jnCtR0= X-Received: by 2002:ac8:74cc:0:b0:4f1:dc5b:44ab with SMTP id d75a77b69052e-4ffc8310346mr161820881cf.45.1768280844511; Mon, 12 Jan 2026 21:07:24 -0800 (PST) MIME-Version: 1.0 References: <20250911054220.3784-1-root@ip-172-31-36-228.ec2.internal> In-Reply-To: From: John Naylor Date: Tue, 13 Jan 2026 12:07:13 +0700 X-Gm-Features: AZwV_Qgk6GcQ6RAvCzRlHWfghYEoUdb4m2j04N_7dYKhyIFMeSAbzlLQaeeqPJk Message-ID: Subject: Re: Proposal for enabling auto-vectorization for checksum calculations To: Andrew Kim Cc: pgsql-hackers@lists.postgresql.org, Oleg Tselebrovskiy Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk On Tue, Jan 13, 2026 at 8:58=E2=80=AFAM Andrew Kim = wrote: > The removal of the backend-side checksum_backend_lib stanza without an > equivalent dependency path explains the CI breakage clearly, > and your diagnosis makes sense, v10-0003 approach, > splitting the body of checksum_block into a semi-private > implementation header while preserving the externally visible > interface, > that makes sense to me Glad to hear it. > I=E2=80=99m supportive of using v10 as the basis for further discussion a= nd iteration, > cleaning up Meson dependency declarations so generated headers are > properly ordered, > refining the PG_CHECKSUM_INTERNAL usage if needed, Great! It sounds like you've found some issues to address? It's not clear. --=20 John Naylor Amazon Web Services