Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1iVn7t-0003ll-2b for pgsql-hackers@arkaria.postgresql.org; Sat, 16 Nov 2019 01:43:49 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1iVn7r-0006lN-Ry for pgsql-hackers@arkaria.postgresql.org; Sat, 16 Nov 2019 01:43:47 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1iVn7r-0006lG-HR for pgsql-hackers@lists.postgresql.org; Sat, 16 Nov 2019 01:43:47 +0000 Received: from mail-pl1-x636.google.com ([2607:f8b0:4864:20::636]) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1iVn7o-0007zB-Q6 for pgsql-hackers@lists.postgresql.org; Sat, 16 Nov 2019 01:43:46 +0000 Received: by mail-pl1-x636.google.com with SMTP id w7so5868310plz.12 for ; Fri, 15 Nov 2019 17:43:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=XEj1BKSEkJ1fRmSV3FRMMBXaGRnXY6mXzqWquqFWP6g=; b=uwtk7hS1AKhW+z9b1LJcBM0V7TCXKABvpihqA4h7jzwSkt0y7A4HXY47vun4UCUquP ZEERKr+O7gyFy35PjHMCOQpdBTBM54jWTnfFK1RBUYjBVg/f/6bfJJHx7ZZ6TL57BXC6 zfAMprs6dG0Slm3Utp+xq57Rzjg+kELwuTSF+wDNAbief6R3oReC6JsK/pphegRQpv7/ 9zfczvb3L89AlF/gN3smeWSTKkTWIc9fK53Ww9dFKSkyYwYxqfAmTIFSkh4oS+XeVpQ2 XZJYUusSpE499Zk5cjYiZKpRPMg/tPTkjRVktwUp543iTS4Tu4wgnx4aUxxs9kbgeOR/ cVTw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=XEj1BKSEkJ1fRmSV3FRMMBXaGRnXY6mXzqWquqFWP6g=; b=k2FXlfxUXEcXow+a29iPrSbebqcl1DdCvBRz97XysKjMXV8R1Oyk7Z3qNtsL4BtOm2 K13JydScOxqnpVNDr98WeN+0vULeThx6Yu3k+4gZ9OY0pi542Euz0ddR73kkfPDKWxLa 5Gxue6LFOiZdwM9f9qIhp+KZsESp8KbbILpeT1aaG2Qa9pNhAJdYLeIuZX5UxSXxbM/B kxxCwnVh/34BOUBXRrjKLbKPXpjnimlCtK7ykKClHVXGx+c8zYgAc7ylD9ed7J86AGoG Tu7vyp/sRu9LZyAz8ciKA3Eb8pdD7quAewsMJmkbe6H2x3KiOSzC5O4TUir8aix/62hd MOjw== X-Gm-Message-State: APjAAAWarb4MewQMAc3dXM9Bm6K9v9NKB7CqGUOrHKibcy21VanWg78w vlno1p5t1HZ7rGQ3fTsoTbWMsrqk X-Google-Smtp-Source: APXvYqx3CGx3rjeqb2gwxI5H4KY10zgwOGz2dpYgfpVY5hDmLb/o/qD5uL3x5TTAF7z5wsyyknED5A== X-Received: by 2002:a17:90a:bc48:: with SMTP id t8mr21691180pjv.131.1573868621475; Fri, 15 Nov 2019 17:43:41 -0800 (PST) Received: from [192.168.0.17] (24-113-193-150.wavecable.com. [24.113.193.150]) by smtp.gmail.com with ESMTPSA id e8sm3602713pgj.80.2019.11.15.17.43.40 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 15 Nov 2019 17:43:40 -0800 (PST) Subject: Re: [HACKERS] [WIP] Effective storage of duplicates in B-tree index. To: Peter Geoghegan , Robert Haas Cc: Anastasia Lubennikova , PostgreSQL Hackers References: <55E4051B.7020209@postgrespro.ru> From: Mark Dilger Message-ID: Date: Fri, 15 Nov 2019 17:43:39 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk On 11/13/19 11:51 AM, Peter Geoghegan wrote: > Can you suggest an alternative? Dupression -- Mark Dilger