- From: Pat Hayes <phayes@ihmc.us>
- Date: Thu, 1 Jul 2010 22:14:07 -0500
- To: Steve Harris <steve.harris@garlik.com>
- Cc: Hugh Glaser <hg@ecs.soton.ac.uk>, Ross Singer <rossfsinger@gmail.com>, Robert Sanderson <azaroth42@gmail.com>, Linked Data community <public-lod@w3.org>, Semantic Web <semantic-web@w3.org>
On Jul 1, 2010, at 5:34 AM, Steve Harris wrote: > On 2010-07-01, at 03:20, Hugh Glaser wrote: >> In fact, a question I would like to ask, but suspect that noone who >> can >> answer it is still reading this thread ( :-) ): >> For those who implement RDF stores, do you have to do something >> special to >> reject RDF that has literals as subject? > > In my defence, I'm not reading this thread, but someone pointed me > at it :) > > Yes, and no. The engine will reject any literals in the subject > position, the index can't represent that. It's a source of > significant optimisations, and we would have to do a /lot/ of > engineering work to allow them. > > To be brief: I don't care if there are usecases for literals in the > subject position. It you could rewind time 10 years I might like > them in there, but we've invested millions of pounds in engineering > RDF stores conforming to RDF 2004. I can't, and won't throw that > work away for some relatively obscure benefits. > That is fine. Nobody mandates that your (or anyone else's) software must be able to handle all cases of RDF. But to impose an irrational limitation on a standard just because someone has spent a lot of money is a very bad way to make progress, IMO. Although, I believe that there are still people using COBOL, so you may have a point. Pat Hayes > - Steve > > -- > Steve Harris, Garlik Limited > 1-3 Halford Road, Richmond, TW10 6AW, UK > +44 20 8439 8203 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 > > > ------------------------------------------------------------ IHMC (850)434 8903 or (650)494 3973 40 South Alcaniz St. (850)202 4416 office Pensacola (850)202 4440 fax FL 32502 (850)291 0667 mobile phayesAT-SIGNihmc.us http://www.ihmc.us/users/phayes
Received on Friday, 2 July 2010 03:17:20 UTC