- From: Seaborne, Andy <andy.seaborne@hp.com>
- Date: Mon, 9 Jul 2007 11:41:20 +0100
- 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 UTC