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Re: rdf dataset parameters in protocol for sparql update

From: Lee Feigenbaum <lee@thefigtrees.net>
Date: Sun, 21 Aug 2011 00:33:49 -0400
Message-ID: <4E508AAD.90807@thefigtrees.net>
To: Lee Feigenbaum <lee@thefigtrees.net>
CC: SPARQL Working Group <public-rdf-dawg@w3.org>
If there are no questions or comments, I'd like to propose on Tuesday 
that we resolve this question as per the below email.

So please let me know what you think!


On 8/15/2011 10:11 PM, Lee Feigenbaum wrote:
> 1/ The parameters are called using-graph-uri and using-named-graph-uri
> 2/ If at least one value for one of the parameters is present, then the
> protocol parameters fully define the RDF dataset that is used for the
> query pattern matching (WHERE clause) of all operations in the update
> request. That is, they fully replace all USING and USING NAMED clauses
> in the request's operations.
> A third way of stating this: the semantics of including at least one of
> using-graph-uri and using-named-graph-uri is the equivalent of doing the
> following:
> A) Remove all USING clauses from the request.
> B) Remove all USING NAMED clauses from the request.
> C) For each using-graph-uri=u in the protocol request
> For each INSERT/DELETE/INSERT DELETE operation in the request
> Add "USING u" to the operation
> D) For each using-named-graph-uri=u in the protocol request
> For each INSERT/DELETE/INSERT DELETE operation in the request
> Add "USING NAMED u" to the operation
> Protocol says nothing further about the semantics of these parameters --
> everything else is based on the semantics already given for USING and
> USING NAMED in SPARQL 1.1 Update. This includes things like whether
> "USING x" mentioned repeatedly in an update request refers to a mutable
> graph or a graph as retrieved from the Web; this includes things like
> the interaction between these parameters and WITH.
> Our options at this point:
> + Discuss any questions
> + Consider any alternative proposals
> + Consider dropping these parameters altogether
> + Consider adopting this proposal
> Lee
Received on Sunday, 21 August 2011 04:34:35 UTC

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