X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (unknown [200.46.204.144]) by svr1.postgresql.org (Postfix) with ESMTP id 3054552806 for ; Mon, 27 Jun 2005 10:38:03 -0300 (ADT) Received: from svr1.postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 03733-06 for ; Mon, 27 Jun 2005 13:37:57 +0000 (GMT) Received: from svr2.postgresql.org (svr2.postgresql.org [65.19.161.25]) by svr1.postgresql.org (Postfix) with ESMTP id E2B6D52865 for ; Mon, 27 Jun 2005 10:37:56 -0300 (ADT) Received: from nitrogenio.carvalhaes.net (unknown [200.175.206.50]) by svr2.postgresql.org (Postfix) with ESMTP id 89711F0AC6 for ; Mon, 27 Jun 2005 14:34:08 +0100 (BST) Received: from [192.168.0.190] ([192.168.0.190]) (authenticated bits=0) by nitrogenio.carvalhaes.net (8.13.4/8.13.4) with ESMTP id j5RDKvJX030140 for ; Mon, 27 Jun 2005 10:20:58 -0300 Message-ID: <42BFFFF3.2080702@carvalhaes.net> Date: Mon, 27 Jun 2005 10:32:35 -0300 From: grupos User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) X-Accept-Language: en-us, en MIME-Version: 1.0 To: pgsql-performance@postgresql.org Subject: PERFORMANCE ISSUE ODBC x LIBPQ C++ Application Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Triade-MailScanner-Information: Por favor, entre em contato para obter detalhes X-Triade-MailScanner: Found to be clean X-MailScanner-From: grupos@carvalhaes.net X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, hits=0.161 tagged_above=0 required=5 tests=AWL X-Spam-Level: X-Archive-Number: 200506/497 X-Sequence-Number: 13134 Hi ! My company is evaluating to compatibilizate our system (developed in C++) to PostgreSQL. Our programmer made a lot of tests and he informed me that the performance using ODBC is very similar than using libpq, even with a big number of simultaneous connections/queries. Of course that for us is simpler use ODBC because will be easier to maintan as we already support a lot of other databases using ODBC (MySQL, DB2, etc). Someone already had this experience? What are the key benefits using libpq insted of ODBC ? Our application have a heavy load and around 150 concorrent users. Regards, Rodrigo Carvalhaes -- Esta mensagem foi verificada pelo sistema de antivírus e acredita-se estar livre de perigo.