Re: usage of fourth quad element

On 12/7/15 12:55 PM, Gregg Kellogg wrote:
> On Dec 7, 2015, at 8:31 AM, Ruben Verborgh <ruben.verborgh@ugent.be> wrote:
>> > 
>> > Dear all,
>> > 
>> > The Representation Task Force is working hard
>> > on a spec for low-level RDF interfaces.
>> > For this, we need your input!
>> > 
>> > How do you use the fourth element of a quad?
>> > In other words, quads have one more field
>> > in addition to subject/predicate/object of triples,
>> > so what are your use cases for it?
> RDF.rb has changed from using "context" to "graph_name" for the 4th position. This is online with the usage to store the "name" in a name/graph pair within an RDF Dataset. It can hold a URI, BNode, or Variable.
>
> Gregg
>
+1

It provides a hint to an RDF store/dbms in regards to internal document
identifier (a/k/a named graph in SPARQL).

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Received on Monday, 7 December 2015 22:57:49 UTC