Re: Review: SPARQL 1.1 Federated Extensions

  On 01/03/2011 7:31, Axel Polleres wrote:
> Similar to Lee, the definition in 3.2 honestly doesn't make much sense to me.
> What is ep(i) ?
ep(is) is a function that retrieves the graph pointed by the URI i
> you define eval(D(G), ep(i)) as D[i]
what I meant is that the evaluation ep(i) returns a graph (this is what 
I wanted to say here eval(D(G), ep(i)) = D[i]) but indeed I was mistaken.
> ep(i) is not defined, but I assume it shall return a graph?
> but then in the next definition you call
>   eval(D(ep(i)), P_1)
Then, in eval(D(ep(i)), P_1) what I mean is that I evaluate the pattern 
P_1 in the graph returned by ep(i)
> either there's some overloading on the function ep() ongoing here, or I don't understand what's actually going on here. Then you write "if i in dom(ep)" where dom(ep) is not defined.
what I meant here is that i has to be an URI, if it is not, it should 
return the empty set
> For now, I am more leaning towards dropping 3.2 and getting 3.1 straight, following the comments we gave.
I can try to rephrase it, and if you still do not like it I will drop it.


> best,
> Axel
> On 1 Mar 2011, at 10:12, Carlos Buil Aranda wrote:

Received on Tuesday, 1 March 2011 10:53:34 UTC