Re: [Entailment] D-entailment (and upwards) issue? from Andy Seaborne on 2010-05-11 (public-rdf-dawg@w3.org from April to June 2010)

From: Andy Seaborne <andy.seaborne@talis.com>
Date: Tue, 11 May 2010 11:37:26 +0100
To: Axel Polleres <axel.polleres@deri.org>
CC: SPARQL Working Group <public-rdf-dawg@w3.org>
Message-ID: <4BE93366.60905@talis.com>

On 11/05/2010 9:31 AM, Axel Polleres wrote:
> Ah, phew, that solves the issue for numerics, and for "=" with custom datatypes
> this issue can be solved by Operator Extensibility (Section 11.3.1) right?

Yes.  SPARQL requires support for the XSD cases of numbers, dateTimes, 
strings and boolean.  XSD F&O provides a large body of work to reuse.

By popular demand, ARQ adds xsd:time, Gregorian dates, and xsd durations 
(much of the real work and details like parsing and range checking is 
actually done by Xerces/J).  And Roman numerals for testing the 
extension mechanisms.

	Andy

Received on Tuesday, 11 May 2010 10:38:03 UTC