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 1v6F43-001VVa-Eb for pgsql-hackers@arkaria.postgresql.org; Tue, 07 Oct 2025 21:17:43 +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 1v6F41-003uVZ-8a for pgsql-hackers@arkaria.postgresql.org; Tue, 07 Oct 2025 21:17:42 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1v6F40-003uUu-V3 for pgsql-hackers@lists.postgresql.org; Tue, 07 Oct 2025 21:17:41 +0000 Received: from sss.pgh.pa.us ([68.162.161.243]) by makus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1v6F3z-000YcV-0P for pgsql-hackers@postgresql.org; Tue, 07 Oct 2025 21:17:40 +0000 Received: from sss1.sss.pgh.pa.us (localhost [127.0.0.1]) by sss.pgh.pa.us (8.15.2/8.15.2) with ESMTP id 597LHaYC2538964; Tue, 7 Oct 2025 17:17:36 -0400 From: Tom Lane To: "Matheus Alcantara" cc: "Joel Jacobson" , "pgsql-hackers" Subject: Re: Optimize LISTEN/NOTIFY In-reply-to: References: <6899c044-4a82-49be-8117-e6f669765f7e@app.fastmail.com> <165530.1752362320@sss.pgh.pa.us> <02a7cd37-e2fc-4212-8b19-f8c239c95fb8@app.fastmail.com> <96f00bf1-cc9d-4520-9d02-9e14e7767c88@app.fastmail.com> <30c2aa7d-dd6c-4b68-a2e4-f217a1a34acf@app.fastmail.com> <0b4d402a-9ac2-4aa8-acf8-8231dbe579ea@app.fastmail.com> <3095599.1758644879@sss.pgh.pa.us> <0dc6a2cc-5216-4dc1-9dd2-430cafc6095b@app.fastmail.com> <52CC167F-763B-4ECA-B0B4-DAB381816828@gmail.com> <9186C6D0-F7A9-482A-9183-89E530B57E36@gmail.com> <1073593.1759423179@sss.pgh.pa.us> <4bd5e6c4-6fa7-44bb-869d-59a32a331fa8@app.fastmail.com> <2451053.1759855880@sss.pgh.pa.us> Comments: In-reply-to "Matheus Alcantara" message dated "Tue, 07 Oct 2025 18:14:14 -0300" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <2538962.1759871856.1@sss.pgh.pa.us> Date: Tue, 07 Oct 2025 17:17:36 -0400 Message-ID: <2538963.1759871856@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk "Matheus Alcantara" writes: > On Tue Oct 7, 2025 at 1:51 PM -03, Tom Lane wrote: >> Also, I don't think it's the job of this patch to provide test >> coverage for dshash. That should be quite well covered already. > When I was mentioning to test that we can grow the dshash correctly it's > because the v9 patch has a logic to grow the array stored on dshash > entry value that currently is not being cover by the tests. I'm not > saying to test the dshash internal logic which I agree that it's not the > job of this patch. Sorry for being confusing. Ah, yeah, I misunderstood what you meant. I agree that covering that "Grow the array" stanza is a good idea, in fact I said the same thing a little bit ago. regards, tom lane