- From: Steve Harris <steve.harris@garlik.com>
- Date: Fri, 8 Jan 2010 11:09:29 +0000
- To: Paul Gearon <gearon@ieee.org>
- Cc: Andy Seaborne <andy.seaborne@talis.com>, SPARQL Working Group <public-rdf-dawg@w3.org>
On 7 Jan 2010, at 21:06, Paul Gearon wrote: > >> Some related issues in update are about adding triples into an >> empty graph >> vs a non-existent graph (does it automatically get created?) > > I'd rather not. If this is needed then it can be done with: > CREATE SILENT <uri> > INSERT DATA { GRAPH <uri> { triples } } I have a very strong preference for not requiring an explicit CREATE, I've already encountered usecases where this makes things very annoying, e.g. I'd like to: INSERT { GRAPH ?s { ?s ?p ?o } } WHERE { ?s a :Thing . ?s ?p ?o . } 4store would require some work to detect new graph URIs being used, and explicitly create a graph, but I think it's worth it to avoid annoying users. N.B. it's not necessary to detect removing the last triple from a graph, as that doesn't necessarily have to explicitly remove the graph. - Steve -- Steve Harris, CTO, Garlik Limited 2 Sheen Road, Richmond, TW9 1AE, UK +44(0)20 8973 2465 http://www.garlik.com/ Registered in England and Wales 535 7233 VAT # 849 0517 11 Registered office: Thames House, Portsmouth Road, Esher, Surrey, KT10 9AD
Received on Friday, 8 January 2010 11:10:08 UTC