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 1v13cG-00483K-Dj for pgsql-general@arkaria.postgresql.org; Tue, 23 Sep 2025 14:03:36 +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 1v13cD-005vW6-QH for pgsql-general@arkaria.postgresql.org; Tue, 23 Sep 2025 14:03:33 +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 1v13cD-005vVx-ET for pgsql-general@lists.postgresql.org; Tue, 23 Sep 2025 14:03:33 +0000 Received: from cloud.gatewaynet.com ([185.90.37.94]) by magus.postgresql.org with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1v13c9-002Nyp-0l for pgsql-general@lists.postgresql.org; Tue, 23 Sep 2025 14:03:32 +0000 Message-ID: Date: Tue, 23 Sep 2025 15:03:27 +0100 MIME-Version: 1.0 Subject: Re: Quick questions about postgres name? To: pgsql-general@lists.postgresql.org References: <40e1228d-eb4b-5741-4ee3-eaba23831a84@gushi.org> <3017587.1758601023@sss.pgh.pa.us> Content-Language: en-US From: Achilleas Mantzios In-Reply-To: <3017587.1758601023@sss.pgh.pa.us> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk On 9/23/25 05:17, Tom Lane wrote: > "Dan Mahoney (Gushi)" writes: >> It makes mention of the original professor who spearheaded the project >> under a DARPA grant, but it would probably do well to know where the name >> came from. > You should read Joe Hellerstein's recollections [1]. But tl;dr: the > origin of the name is the old INGRES database system; Postgres was > then named Post-inGres. There are also some references to PostQUEL > referring to the ancient QUEL (QUEry Language) project [2]. I remember back in school (circa 1987) in the course of data structures, the topic of tree traversal using the 3 recursive methods : pre-order, in-order and post-order was quite popular back then, in this spirit, indeed, Postgres sounds like the next step of Ingres, but this is my sole impression ! > > regards, tom lane > > [1] https://arxiv.org/pdf/1901.01973 > [2] https://en.wikipedia.org/wiki/QUEL_query_languages > > regards, tom lane > >