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Q about 05-algae-graphs

From: Seaborne, Andy <andy.seaborne@hp.com>
Date: Wed, 01 Jun 2005 17:00:15 +0100
Message-ID: <429DDB8F.7080507@hp.com>
To: RDF Data Access Working Group <public-rdf-dawg@w3.org>

Looking at http://www.w3.org/2005/05/05-algae-graphs/

It says:

       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:

       FROM NAMED foo:graph1
      WHERE { GRAPH foo:graph1 { ?s ?p ?o }  }

which is the same query needed if the named graphs aren't merged.

Received on Wednesday, 1 June 2005 16:03:41 UTC

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