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 1kVzbn-0005JL-Jj for pgsql-hackers@arkaria.postgresql.org; Fri, 23 Oct 2020 16:08:03 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.92) (envelope-from ) id 1kVzbm-0006WU-J5 for pgsql-hackers@arkaria.postgresql.org; Fri, 23 Oct 2020 16:08:02 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kVzbm-0006WL-CR for pgsql-hackers@lists.postgresql.org; Fri, 23 Oct 2020 16:08:02 +0000 Received: from sss.pgh.pa.us ([66.207.139.130]) by makus.postgresql.org with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kVzbk-0007Hx-Cm for pgsql-hackers@postgresql.org; Fri, 23 Oct 2020 16:08:01 +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 09NG7qOr207790; Fri, 23 Oct 2020 12:07:53 -0400 From: Tom Lane To: John Naylor cc: Michael Paquier , Kyotaro Horiguchi , pgsql-hackers , Daniel Verite Subject: Re: speed up unicode decomposition and recomposition In-reply-to: References: <20201015002523.GA2305@paquier.xyz> <3648966.1602731188@sss.pgh.pa.us> <20201015.143047.941890614281076696.horikyota.ntt@gmail.com> <20201016033208.GC1581@paquier.xyz> <20201022043418.GI1475@paquier.xyz> <20201023021124.GN1475@paquier.xyz> Comments: In-reply-to John Naylor message dated "Fri, 23 Oct 2020 05:54:26 -0400" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <207788.1603469272.1@sss.pgh.pa.us> Content-Transfer-Encoding: quoted-printable Date: Fri, 23 Oct 2020 12:07:52 -0400 Message-ID: <207789.1603469272@sss.pgh.pa.us> List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk I chanced to do an --enable-coverage test run today, and I got this weird message during "make coverage-html": genhtml: WARNING: function data mismatch at /home/postgres/pgsql/src/commo= n/unicode_norm.c:102 I've never seen anything like that before. I suppose it means that something about 783f0cc64 is a bit fishy, but I don't know what. The emitted coverage report looks fairly normal anyway. It says unicode_norm.c has zero test coverage, which is very possibly correct since I wasn't running in UTF8 encoding, but I'm not entirely sure of that either. This is with RHEL8's lcov-1.13-4.el8 package. I suppose the first question is does anybody else see that? regards, tom lane