Received: from localhost (unknown [200.46.204.184]) by postgresql.org (Postfix) with ESMTP id 2C8662E2002 for ; Thu, 6 Mar 2008 03:02:05 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.184]) (amavisd-maia, port 10024) with ESMTP id 17106-06 for ; Thu, 6 Mar 2008 03:01:59 -0400 (AST) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.5 Received: from ag-out-0708.google.com (ag-out-0708.google.com [72.14.246.251]) by postgresql.org (Postfix) with ESMTP id 065822E0045 for ; Thu, 6 Mar 2008 03:02:01 -0400 (AST) Received: by ag-out-0708.google.com with SMTP id 23so2971015agd.5 for ; Wed, 05 Mar 2008 23:02:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type; bh=T8quZ9d8ArzlZzV21oEOyUlHLD3aLDVjXyZS09v7GLw=; b=TPDFOCDoNMb/FBVfxDKz4b2ZGCCdMNRoCYcr28zJihP91e+rZ2Ryr42B0vMHx0I7IpCB2jXmghNi6ONkO3V3EpdowfNdYoAaQBl7wXB+fMzipimkAvYlZyQPZy6Is2jmOe8D1oyzhNUSmbMQq5y/jIxOosl9b0zeAkFlpwTUExU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type; b=GD4WJmL8fspRhe6WNNYwpli2rTI6OuYRsj1EsjwwdkA8ptpP9Wmsa2MspJ7ste6LV+itHfSeT6OEkYxlmJ72WlwEnMPLOwZAKH83GAPxMeDbOztkxdwHkil8xA3NgBFdyn9mgIMyV/5FfPFNxjFqToqUArnq1VZoEpa225i3ky4= Received: by 10.100.253.12 with SMTP id a12mr9317019ani.117.1204786921351; Wed, 05 Mar 2008 23:02:01 -0800 (PST) Received: by 10.100.105.20 with HTTP; Wed, 5 Mar 2008 23:02:01 -0800 (PST) Message-ID: Date: Thu, 6 Mar 2008 12:32:01 +0530 From: "sathiya psql" To: pgsql-performance@postgresql.org Subject: oid...any optimizations MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_3610_18818695.1204786921357" X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0.001 tagged_above=0 required=5 tests=HTML_MESSAGE=0.001 X-Spam-Level: X-Archive-Number: 200803/103 X-Sequence-Number: 29057 ------=_Part_3610_18818695.1204786921357 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline i had a table with 50 lakh record... it has a column called oid ( obviously all the tables will have this ), but while doing any operation it is getting slow because of the number of records... if i remove the oid column will i get any benefit, what are all the other default columns created without our knowledge.. ------=_Part_3610_18818695.1204786921357 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline i had a table with 50 lakh record...

it has a column called oid ( obviously all the tables will have this ), but while doing any operation it is getting slow because of the number of records...

if i remove the oid column will i get any benefit, what are all the other default columns created without our knowledge..
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