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Date: Thu, 24 Aug 2006 20:07:05 -0700 (PDT)
From: "Bryan Pendleton (JIRA)" <derby-dev@db.apache.org>
To: derby-dev@db.apache.org
Subject: [jira] Updated: (DERBY-688) Enhancements to XML functionality to
 move toward XPath/XQuery support...
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     [ http://issues.apache.org/jira/browse/DERBY-688?page=all ]

Bryan Pendleton updated DERBY-688:
----------------------------------

    Derby Info:   (was: [Patch Available])

Merged the phase7 patch to the 10.2 branch as revision 434583.

Cleared Patch Available. Is it time to mark this issue resolved?

> Enhancements to XML functionality to move toward XPath/XQuery support...
> ------------------------------------------------------------------------
>
>                 Key: DERBY-688
>                 URL: http://issues.apache.org/jira/browse/DERBY-688
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL, JDBC
>            Reporter: A B
>         Assigned To: A B
>            Priority: Minor
>         Attachments: d688_phase1_v1.patch, d688_phase1_v1.stat, d688_phase1_v2.patch, d688_phase1_v3.patch, d688_phase2_v1_code.patch, d688_phase2_v1_tests.patch, d688_phase2_v2_tests.patch, d688_phase2_v3_tests.patch, d688_phase3_v1_code.patch, d688_phase3_v1_tests.patch, d688_phase4_v1.patch, d688_phase4_v2.patch, d688_phase5_v1.patch, d688_phase6_v1.patch, d688_phase7_v1.patch, derbyXMLSpec.html
>
>
> As of DERBY-334, Derby has some very basic support for XML that consists of an XML datatype and three operators (XMLPARSE, XMLSERIALIZE, and XMLEXISTS).  I would like to enhance this existing functionality and, by doing so, help to move Derby incrementally toward a more usable and more complete XPath/XQuery solution (with emphasis on "incrementally").
> I have attached to this issue a document describing the particular changes that I am looking to make.  At a high level, they consist of:
> 1) Making it easier to use the XML operators and datatype from within JDBC (ex. by implicit parsing/serialization of XML values).
> 2) Adding a new operator, XMLQUERY, to allow a user to retrieve the results of an XPath expression (instead of just determining whether or not the expression evaluates to an empty sequence, which is what XMLEXISTS does).
> 3) Making changes to the existing operators to line them up with the SQL/XML 2005 specification, and also to take steps toward my eventual hope of having support for XQuery (as opposed to just XPath) in Derby.
> If anyone has time and interest enough to look at the document and provide feedback, that'd be great...

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