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 1iade9-0004XA-KM for pgsql-performance@arkaria.postgresql.org; Fri, 29 Nov 2019 10:37:09 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1iade7-0007Gb-M3 for pgsql-performance@arkaria.postgresql.org; Fri, 29 Nov 2019 10:37:07 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1iade7-0007GT-9l for pgsql-performance@lists.postgresql.org; Fri, 29 Nov 2019 10:37:07 +0000 Received: from mout.kundenserver.de ([212.227.17.10]) by makus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.92) (envelope-from ) id 1iade4-0001iC-2E for pgsql-performance@lists.postgresql.org; Fri, 29 Nov 2019 10:37:05 +0000 Received: from [10.8.0.75] ([185.40.248.10]) by mrelayeu.kundenserver.de (mreue109 [212.227.15.145]) with ESMTPSA (Nemesis) id 1MPooP-1iOBIn3lFD-00MvCK for ; Fri, 29 Nov 2019 11:36:58 +0100 Subject: Re: Considerable performance downgrade of v11 and 12 on Windows To: pgsql-performance@lists.postgresql.org References: From: Thomas Kellerer Message-ID: <1d19c0ec-a551-67ee-5f15-ff72bf7e7b40@gmx.net> Date: Fri, 29 Nov 2019 11:36:56 +0100 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.23) Gecko/20090812 Thunderbird/2.0.0.23 Mnenhy/0.7.6.666 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: de-DE Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:7LqPDnPqWiuYHVh86RqjERka9THLlFaWdi33jZy9ISFukbc94Tr 35wBi30X2rStwKg+PVNj+0RLdcjlt2E7fIsKL9GKrTViotcXmjTOSCyOvnzAx68/INqJivO q2yRy92j5rxCLBrkkBV5XXEHCxnjxx74mrtlMX2xXGnGnt6wPLcJchk+mRTQhL/AzpbDWci 81EmP9gWvOwjMApM0QVjA== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:g1xk4NCE/Xo=:+J6vOxLGCK2ScWLTn60iXi JPYHEhXNpDoOCGAxIO41jSfFpMEklIISFiT6BOejnhPplP5J3hfVI8+BOLP04HQkGCqJtEdYn P5z97qCSpObTHX4clKv1AOzlEK4RuTkTXOWeOMJHs9/uCCy8/FrJgEeIn0ws7N9EdwJeUhmUE 8JeyNe6Ig/gGI1ubcZVjbOzGuhZ6xAj1tISgW7St6dVQqhFTaxmCL8W8EE8Uoz/9KyMgL5p3i X4WfPeZEMV9BNHUevblYwzvGESxIhtNuYa8FbcNpsMJGot9IkqUQn0fgL7L5c9Ppzz+ygJBkC w6U30avgQ2xvbBjOoqKNaPTGXKfTIdlV/WtSzLYbKdPfjWlMsMn0X5jSq4ugVFoqIoL/fYFz5 77nEpNsYNmpuhT8BUsPb/BTqj6O/fxiamtMKhEapkomJDmFhu7zEhhdiF6CLWV5IIOkyZkhQj lyGDxmF/YXst/KTNKLSmJDuI9roK8tfDMd4s/f3fXuELH2f+a0NOlMboB3G/q1ovrlHNryhHR sUG6yk+9XUTY6Omwip2tBGUuKKkpZHZ1Tdr++sYVyYCyUHNL9qR0JwPdgz+zl0zQGoAHcei3R vFLkz42ABTIUQK9h0hxXVD8IAhP9WMGJKJ+1qm+Irrhq/bc1GNBFx5z+qg0VYcjHiZaE7gin2 5NOPpvN1k+8B5zfKVx6O3tUexDVYhHXIPjpFZTZsYQoZUgUUvXRFetQDXo86D5KjvctuNDcIB EG9sTFsVjOYIyUoHEwrLIcrzAtiEIPy0roSdbNxiSPnu7sexCqByguDl6/XqAvQYATvOfmdnD 80HBUE/fGcidrkj2mrWIq8h3QJY+1CSIVP4BxRo7/L538PE+U6O5p4dtsxTxJvSANwzxY0hfP XGvk3hs1vHO2baTQjvPvwVtipc1JEbzl+1ww9syEI= List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk Eugene Podshivalov schrieb am 29.11.2019 um 11:04: > Imported ways data from a file and added a primary key. > > SET synchronous_commit TO OFF; > COPY ways FROM 'E:\ways.txt'; > ... > COPY ways FROM PROGRAM 'cmd /c "type E:\ways.txt"'; Those two commands are not doing the same thing - the piping through the TYPE command is most probably eating all the performance