W3C home > Mailing lists > Public > w3c-rdfcore-wg@w3.org > June 2002

Re: datatypes message - draft 2

From: Patrick Stickler <patrick.stickler@nokia.com>
Date: Fri, 28 Jun 2002 11:45:55 +0300
To: Dan Connolly <connolly@w3.org>
CC: ext Brian McBride <bwm@hplb.hpl.hp.com>, RDF Core <w3c-rdfcore-wg@w3.org>
Message-ID: <B941FCF3.1791F%patrick.stickler@nokia.com>

On 2002-06-27 20:46, "ext Dan Connolly" <connolly@w3.org> wrote:

> 
> On Thu, 2002-06-27 at 01:40, Patrick Stickler wrote:
>> 
>> 
>> On 2002-06-26 20:38, "ext Brian McBride" <bwm@hplb.hpl.hp.com> wrote:
>> 
>> 
>> In the introduction, it would be good, I think, to add a comment
>> that the tidy/untidy issue has little to do with implementational
>> efficiency of triples stores,
> 
> not true; see comments from Sergey a long time ago about
> the cost of untidy literals in RDF/database systems.

Sorry, but those were, IMO, sufficiently refuted.

> Sorry I don't have time to find it.
> 
> The swap/cwm implementation would suffer a significant
> efficiency hit if literals weren't tidy.
> 
> http://www.w3.org/2000/10/swap/
> 
> esp in def loadToStore(store, addr):
> 
>   store.storeQuad((store._experience,
>                    store.semantics,
>                    store.intern((SYMBOL, addr)),
>                    store.intern((FORMULA, addr + "#_formula" ))))

Sure, if you didn't fix it. The above treatment of literals
as global constants would simply be wrong, given their untidy
semantics.

Patrick

--
               
Patrick Stickler              Phone: +358 50 483 9453
Senior Research Scientist     Fax:   +358 7180 35409
Nokia Research Center         Email: patrick.stickler@nokia.com
Received on Friday, 28 June 2002 04:41:24 EDT

This archive was generated by hypermail pre-2.1.9 : Wednesday, 3 September 2003 09:49:27 EDT