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RE: example in current cand. rec....

From: Seaborne, Andy <andy.seaborne@hp.com>
Date: Mon, 9 Jul 2007 11:41:20 +0100
Message-ID: <86FE9B2B91ADD04095335314BE6906E801474BCC@sdcexc04.emea.cpqcorp.net>
To: <axel@polleres.net>
Cc: <public-rdf-dawg-comments@w3.org>


-------- Original Message --------
> From: Axel Polleres <mailto:axel.polleres@deri.org>
> Date: 9 July 2007 11:23
> 
> Seaborne, Andy wrote:
> > 
> > 
> > -------- Original Message --------
> >  > From: Axel Polleres <>
> >  > Date: 5 July 2007 14:35
> >  >
> >  > referring to the examples in Section 12.2.2 of  >
> > http://www.w3.org/TR/2007/CR-rdf-sparql-query-20070614/  >
> >  > 2 issues:
> >  >
> >  > 1) What happened here?
> >  > ---------
> >  > Example: group consisting of a basic graph pattern and an
optional
> >  graph  > pattern: > { ?s :p1 ?v1 OPTIONAL {?s :p2 ?v2 } }  >
> >  LeftJoin( >      Join(Z, BGP(?s :p1 ?v1)),
> >  >      Join(Z, BGP(?s :p1 ?v1)) ),
> 
> What I meant by copy-paste-error was why here (and also in the second
> example below) the first pattern is repeated twice, not that there are
> two forms of he algebra. ie. this should be:  
> 
>      LeftJoin(
>           Join(Z, BGP(?s :p1 ?v1)),
>           Join(Z, BGP(?s :p2 ?v2)) ),
> 
> instead... right?

OK - I see now.  It will be corrected.

	Thanks
	Andy

> axel@polleres.net  url: http://www.polleres.net/
Received on Monday, 9 July 2007 10:41:36 GMT

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