Received: from localhost (wm.hub.org [200.46.204.128]) by postgresql.org (Postfix) with ESMTP id D81FE9FB367 for ; Fri, 20 Oct 2006 19:19:34 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.128]) (amavisd-new, port 10024) with ESMTP id 26729-04 for ; Fri, 20 Oct 2006 22:19:27 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey- Received: from floppy.pyrenet.fr (news.pyrenet.fr [194.116.145.2]) by postgresql.org (Postfix) with ESMTP id 305D99FB352 for ; Fri, 20 Oct 2006 19:19:26 -0300 (ADT) Received: by floppy.pyrenet.fr (Postfix, from userid 106) id A8D2F30E09; Sat, 21 Oct 2006 00:19:25 +0200 (MET DST) From: "Carlo Stonebanks" X-Newsgroups: pgsql.performance Subject: Is ODBC that slow? Date: Fri, 20 Oct 2006 18:19:42 -0400 Organization: Hub.Org Networking Services Lines: 17 Message-ID: X-Complaints-To: usenet@news.hub.org X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2900.2869 X-RFC2646: Format=Flowed; Original X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2962 To: pgsql-performance@postgresql.org X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0 tagged_above=0 required=5 tests= X-Spam-Level: X-Archive-Number: 200610/440 X-Sequence-Number: 21569 Our Windows-based db server has to integrate with users that work regularily with Access.When attempting to import user's data from Access MDB files to PostgreSQL, we try on eof two things: either import using EMS SQL Manager's Data Import from Access utility, or export from Access to Postgresql via an odbc-based connectionin both cases, the performance is just awful. Performance with Tcl's native postgres driver seems rather fine running from Windows a Windows client, BTW. ODBC is often blamed for this sort of thing - I have the 8.01.02 release dated 2006.01.31. Everything appears to be at its default setting. Is this the reason for the rather depressing performance fromt/to access and can anything be done about it? Carlo