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Re: Q about 05-algae-graphs

From: Eric Prud'hommeaux <eric@w3.org>
Date: Thu, 2 Jun 2005 01:25:14 -0400
To: "Seaborne, Andy" <andy.seaborne@hp.com>
Cc: RDF Data Access Working Group <public-rdf-dawg@w3.org>
Message-ID: <20050602052514.GA4845@w3.org>
On Wed, Jun 01, 2005 at 05:00:15PM +0100, Seaborne, Andy wrote:
> 
> Looking at http://www.w3.org/2005/05/05-algae-graphs/
> 
> It says:
> 
> """
> SELECT ?o
>       FROM NAMED foo:graph1
>      WHERE { ?s ?p ?o }
> 
> turns into an Algae query:
> 
> ask ( ?s ?p ?o {%ATTRIB = foo:graph1} )
> select (?o)
> """
> 
> 
> Sorry - I don't get it.  The preceeding text says:
> 
> """
> if the database merges queries [I think that's meant to be "graphs"] and 
> turn
> those into constraints on the fourth column
> """
> 
> I expected a constraint on the fourth column:
> 
> SELECT ?o
>       FROM NAMED foo:graph1
>      WHERE { GRAPH foo:graph1 { ?s ?p ?o }  }
> 
> which is the same query needed if the named graphs aren't merged.

tx
fixed in 1.6
-- 
-eric

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Received on Thursday, 2 June 2005 05:25:19 GMT

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