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 1hPver-0006Qa-SJ for pgsql-advocacy@arkaria.postgresql.org; Sun, 12 May 2019 21:05:22 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1hPvdq-0008V9-Kr for pgsql-advocacy@arkaria.postgresql.org; Sun, 12 May 2019 21:04:18 +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 1hPvdq-0008V1-DV for pgsql-advocacy@lists.postgresql.org; Sun, 12 May 2019 21:04:18 +0000 Received: from twelve.baremetal.com ([67.223.102.253]) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hPvdi-00036T-Kh for pgsql-advocacy@lists.postgresql.org; Sun, 12 May 2019 21:04:17 +0000 Received: from Darrens-iMac.local (S01061056117e3190.gv.shawcable.net [24.108.169.135]) by twelve.baremetal.com (8.14.9/8.14.9) with ESMTP id x4CL45mc012293 for ; Sun, 12 May 2019 14:04:06 -0700 Subject: Re: PostgreSQL 12: Feature Highlights To: pgsql-advocacy@lists.postgresql.org References: <830415f7-78ec-ef7b-0f73-0e810ef87f91@postgresql.org> From: Darren Duncan Message-ID: <2d52d5a1-978a-1d9c-a0c5-a9fb086a7648@darrenduncan.net> Date: Sun, 12 May 2019 14:04:06 -0700 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <830415f7-78ec-ef7b-0f73-0e810ef87f91@postgresql.org> 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 2019-05-12 8:28 a.m., Jonathan S. Katz wrote: > 7. Introduction of generated columns that compute and store an > expression as a value on the table It seems to me that one of the things that's valuable about this feature is that one can make as regular visible data any calculated-from-a-row value that is used for indexing purposes rather than that being hidden or not possible. I assume or hope that generated columns can be used in all index types like regular columns right? -- Darren Duncan