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 1gzMfH-000720-8H for pgsql-hackers@arkaria.postgresql.org; Thu, 28 Feb 2019 14:28:00 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1gzMfF-00075l-Vr for pgsql-hackers@arkaria.postgresql.org; Thu, 28 Feb 2019 14:27:57 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1gzMfF-00075e-HN for pgsql-hackers@lists.postgresql.org; Thu, 28 Feb 2019 14:27:57 +0000 Received: from mail.postgrespro.ru ([93.174.131.138]) by makus.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1gzMfB-0003jT-VQ for pgsql-hackers@lists.postgresql.org; Thu, 28 Feb 2019 14:27:56 +0000 Received: from localhost (localhost [127.0.0.1]) by mail.postgrespro.ru (Postfix) with ESMTP id E801521CCCCF; Thu, 28 Feb 2019 17:27:51 +0300 (MSK) X-Virus-Scanned: Debian amavisd-new at postgrespro.ru X-Spam-Flag: NO X-Spam-Score: 0 X-Spam-Level: X-Spam-Status: No, score=x tagged_above=-99 required=4 WHITELISTED tests=[] autolearn=unavailable Received: from [192.168.27.191] (gw.postgrespro.ru [93.174.131.141]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) by mail.postgrespro.ru (Postfix) with ESMTPSA id A075321C706C; Thu, 28 Feb 2019 17:27:51 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=postgrespro.ru; s=mail; t=1551364071; bh=iJFUIW7IRF9IGdBeR9sgOg+B9U6/DWeEIABGrEdBmkE=; h=Subject:To:Cc:References:From:Date:In-Reply-To; b=gEtlyQyFDPUuJ6wAPrej0H1183nUAEegsOflkCb7OJheeljp2kJT8XsuZQy1brBry N0Za5LK+SG3vOnlTvQr9xLuqeVuKqtRcHV9K2+EImfLubE1D7mtBm3JIeOU79yPZE5 ok3J1jPWro3mEuGNcCU+byAW7YG3kG/YEDmWn7ws= Subject: Re: Optimze usage of immutable functions as relation To: Tom Lane , Andres Freund Cc: Antonin Houska , Aleksandr Parfenov , a.bykov@postgrespro.ru, pgsql-hackers@lists.postgresql.org References: <402356c32eeb93d4fed01f66d6c7fe2d@postgrespro.ru> <20180906185109.661aaef0@asp437-ThinkPad-L380> <153994199621.10161.17815885396545049364.pgcf@coridan.postgresql.org> <11120.1541686083@localhost> <20190216014332.ifjqaaew4tfvzpnk@alap3.anarazel.de> <12717.1550449225@sss.pgh.pa.us> From: Alexander Kuzmenkov Message-ID: Date: Thu, 28 Feb 2019 17:27:51 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: <12717.1550449225@sss.pgh.pa.us> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk On 2/18/19 03:20, Tom Lane wrote: > The dummy-relation stuff I referred to has now been merged, so there's > really no good reason not to revise the patch along that line. I'll try to post the revised implementation soon. -- Alexander Kuzmenkov Postgres Professional: http://www.postgrespro.com The Russian Postgres Company