- From: Paul Cotton <pcotton@microsoft.com>
- Date: Wed, 10 Jul 2002 19:50:00 -0400
- To: "Tim Bray" <tbray@textuality.com>, <www-tag@w3.org>
I support this request. /paulc Chair, XML Query WG and TAG member Paul Cotton, Microsoft Canada 17 Eleanor Drive, Nepean, Ontario K2E 6A3 Tel: (613) 225-5445 Fax: (425) 936-7329 <mailto:pcotton@microsoft.com> > -----Original Message----- > From: Tim Bray [mailto:tbray@textuality.com] > Sent: Wednesday, July 10, 2002 5:49 PM > To: www-tag@w3.org > Subject: I'd like to un-raise augmentedInfoset-22 > > > On the basis of further investigation, I don't believe that there is an > architectural issue here. My raising of the issue was based on an > erroneous impression that XQuery has a normative dependency on the PSVI, > which is not the case. Should a situation arise in which W3C or other > work does develop normative dependencies on the PSVI, it may be the case > that we want to consider the architectural implications. But for now, I > don't think it should be taking up space on our (crowded) agenda. > > -Tim > > PS: The relationship between XQuery and the PSVI is as follows: XQuery > sections 1 and 2.1.2 make it clear that the information required to > implement XQuery is that contained in the XQuery Data Model, which could > be constructed using the PSVI as input. It further notes (especially in > 2.1.2) that a Data Model instance "might also be synthesized directly > from a relational database, or constructed in some other way... XQuery > is defined in terms of operations on the Data Model, but it does not > place any constraints on how the input Data Model instance is > constructed". > > The data model does include types identified by qname, and uses XSchema > terminology to describe this, but as noted above, such qnames could be > generated in a variety of ways. > > The XQuery Data Model draft provides instructions for how one might > construct the XQuery data model using the PSVI as input, which seems > quite sensible and useful. But the syntax and semantics of XQuery, as > seen by implementors, have no normative dependency on the PSVI.
Received on Wednesday, 10 July 2002 19:50:35 UTC