- From: Bijan Parsia <bparsia@isr.umd.edu>
- Date: Tue, 19 Apr 2005 12:35:22 -0400
- To: andy.seaborne@hp.com
- Cc: howardk@fatdog.com, RDF Data Access Working Group <public-rdf-dawg@w3.org>
On Apr 19, 2005, at 12:26 PM, Seaborne, Andy wrote: > Howard Katz wrote: >> > Howard, >> > >> > Thanks for this - it is really helpful, especially about the type >> > promotion and subtype substitution. I think I can upgrade to that >> style >> > of execution so I think it is doable. I'd be interested in ptrs >> to how >> > expression evaluation maps to existing technologies like SQL. >> Sorry, I don't have any data points in that department. >> > >> > Do you think this means we need to say what happens to literals of >> type >> > XMLLiteral? >> Yikes, I'd forgotten all about xml literals! Do you really want to go >> there? > > It's only because all the major issues are clear from your email that > I thought of such corner cases. Personally, I have seen little use of > XML literals so I don't have a strong sense of what to do or how > important they are. Though under attack, OWL-S (under my influence) makes extensive use of XMLLiterals. It would be better to be able to use XML Schema complex types, but I don't see how to usefully combine XMLLiterals and further typing of them (except by adding xsi:types to the literals). Cheers, Bijan.
Received on Tuesday, 19 April 2005 16:35:38 UTC