Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mHtok-00021u-CS for pgsql-performance@arkaria.postgresql.org; Sun, 22 Aug 2021 20:11:42 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1mHtoh-00058y-Ge for pgsql-performance@arkaria.postgresql.org; Sun, 22 Aug 2021 20:11:39 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mHtoh-000573-8N for pgsql-performance@lists.postgresql.org; Sun, 22 Aug 2021 20:11:39 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by magus.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mHtoa-0002es-8C for pgsql-performance@postgresql.org; Sun, 22 Aug 2021 20:11:38 +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 17MKBPNN038108; Sun, 22 Aug 2021 16:11:25 -0400 From: Tom Lane To: "ldh@laurent-hasson.com" cc: Justin Pryzby , Ranier Vilela , "pgsql-performance@postgresql.org" Subject: Re: Big Performance drop of Exceptions in UDFs between V11.2 and 13.4 In-reply-to: References: <2092859.1629558281@sss.pgh.pa.us> <2136207.1629569846@sss.pgh.pa.us> <20210821191950.GW10479@telsasoft.com> <20210821221729.GY10479@telsasoft.com> <20210822154758.GZ10479@telsasoft.com> <30496.1629654632@sss.pgh.pa.us> <35729.1629660223@sss.pgh.pa.us> Comments: In-reply-to "ldh@laurent-hasson.com" message dated "Sun, 22 Aug 2021 19:31:54 -0000" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <38106.1629663085.1@sss.pgh.pa.us> Content-Transfer-Encoding: quoted-printable Date: Sun, 22 Aug 2021 16:11:25 -0400 Message-ID: <38107.1629663085@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk "ldh@laurent-hasson.com" writes: > I do have a Linux install of 13.3, and things work beautifully, so this = is definitely a Windows thing here that started in V12. It's good to have a box around it, but that's still a pretty large box :-(. I'm hoping that one of our Windows-using developers will see if they can reproduce this, and if so, try to bisect where it started. Not sure how to make further progress without that. regards, tom lane