Return-Path: Delivered-To: apmail-db-derby-user-archive@www.apache.org Received: (qmail 29113 invoked from network); 24 Aug 2007 08:05:29 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 24 Aug 2007 08:05:29 -0000 Received: (qmail 59076 invoked by uid 500); 24 Aug 2007 08:05:24 -0000 Delivered-To: apmail-db-derby-user-archive@db.apache.org Received: (qmail 59043 invoked by uid 500); 24 Aug 2007 08:05:24 -0000 Mailing-List: contact derby-user-help@db.apache.org; run by ezmlm Precedence: bulk list-help: list-unsubscribe: List-Post: List-Id: Reply-To: "Derby Discussion" Delivered-To: mailing list derby-user@db.apache.org Received: (qmail 59032 invoked by uid 99); 24 Aug 2007 08:05:24 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 24 Aug 2007 01:05:24 -0700 X-ASF-Spam-Status: No, hits=-0.0 required=10.0 tests=SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: local policy) Received: from [192.18.1.36] (HELO gmp-ea-fw-1.sun.com) (192.18.1.36) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 24 Aug 2007 08:05:59 +0000 Received: from d1-emea-10.sun.com ([192.18.2.120]) by gmp-ea-fw-1.sun.com (8.13.6+Sun/8.12.9) with ESMTP id l7O84tH1026405 for ; Fri, 24 Aug 2007 08:04:55 GMT Received: from conversion-daemon.d1-emea-10.sun.com by d1-emea-10.sun.com (Sun Java System Messaging Server 6.2-6.01 (built Apr 3 2006)) id <0JN900J01QD7CW00@d1-emea-10.sun.com> (original mail from Oystein.Grovlen@Sun.COM) for derby-user@db.apache.org; Fri, 24 Aug 2007 09:04:55 +0100 (BST) Received: from [192.168.0.5] ([80.202.27.173]) by d1-emea-10.sun.com (Sun Java System Messaging Server 6.2-6.01 (built Apr 3 2006)) with ESMTPSA id <0JN9006IXQG4SN30@d1-emea-10.sun.com> for derby-user@db.apache.org; Fri, 24 Aug 2007 09:04:53 +0100 (BST) Date: Fri, 24 Aug 2007 10:04:52 +0200 From: =?ISO-8859-1?Q?=D8ystein_Gr=F8vlen?= Subject: Re: [ANNOUNCE] Apache Derby 10.3.1.4 released In-reply-to: <46CDEA08.3060200@sun.com> Sender: Oystein.Grovlen@Sun.COM To: Derby Discussion Message-id: <46CE9124.1050103@sun.com> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 8BIT References: <46BCC4A9.7070403@sun.com> <9f40b500708171234w385c1e2bw3e600344b1d112da@mail.gmail.com> <46CA2C83.7060000@sun.com> <46CA807F.5070407@sun.com> <46CDEA08.3060200@sun.com> User-Agent: Thunderbird 2.0.0.6 (Windows/20070728) X-Virus-Checked: Checked by ClamAV on apache.org Rahul Dwivedi wrote: > Are there any plans for implementing such a feature where lob locators > are stored in tables and LOB are stored some where else, or such similar > functionality to enhance performance with multiple lobs in single table. > I do not think that anyone has so far indicated that they have any plans for this. However, I would very much like to understand better what you are requesting. If I understand you correctly, your main objective is that if LOBs are stored outside the table, a table scan will be much quicker. Is that what you are thinking of? Others have asked for locators in order to save space if two columns are referring the same LOB. That raises the question of what should happen if a LOB is updated (e.g., through JDBC by Blob.setBytes). Should that update be reflected by all columns referring the Blob, or just the column being updated. -- �ystein