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RE: Test without data?

From: Polleres, Axel <axel.polleres@siemens.com>
Date: Mon, 19 Nov 2012 17:35:03 +0100
To: "andy.seaborne@epimorphics.com" <andy.seaborne@epimorphics.com>, "public-rdf-dawg@w3.org" <public-rdf-dawg@w3.org>
Message-ID: <9DA51FFE5E84464082D7A089342DEEE801581329D3B2@ATVIES9917WMSX.ww300.siemens.net>
(taken away from the comments list for clarification/discussion)

I was thinking a bit more on how we could proceed with .
Last Telco I understood we had more or less agreement that we don't
want to touch the approved tests (as for this might affect PR).

Suggestion: Can we - instead - solve this by making an editorial change
to our test case README
  http://www.w3.org/2009/sparql/docs/tests/README.html

adding a subsection on tests with FROM clauses that clarifies:


"For all test cases with FROM/FROM NAMED clauses we expect the respective graphs
Comprising the dataset to be loaded from the IRIs of the FROM/FROM NAMED clauses
(where relative IRIs are supposed to have the directory of the query IRI as base IRI)."


...or alike, and - optionally -name constructwhere04 as a particular example

Admittedly, I don't like the explanation in parentheses, so if someone
has a better wording for that, suggestions welcome.

Best,
Axel


> -----Original Message-----
> From: Andy Seaborne [mailto:andy.seaborne@epimorphics.com]
> Sent: Donnerstag, 25. Oktober 2012 12:40
> To: public-rdf-dawg-comments@w3.org
> Subject: Re: Test without data?
>
>
>
> On 23/10/12 08:09, Jan Wielemaker wrote:
> > Hi Andy,
> >
> > On 10/22/2012 10:35 PM, Andy Seaborne wrote:
> >>
> >>
> >> On 22/10/12 14:41, Jan Wielemaker wrote:
> >>> Hi,
> >>>
> >>> I'm looking into the SPARQL 1.1 test "constructwhere04 - CONSTRUCT
> >>> WHERE". This refers to data from <data.ttl>, but the manifest does
> >>> not tell us to load that file. Am I missing something (so far I
> always had)?
> >>>
> >>>      Thanks --- Jan
> >>>
> >>
> >> The query itself has a FROM clause:
> >
> > Yes, I've seen that. However, I consider FROM to be the name of a
> > graph, not an instruction to load a graph from a URI. We have the
> > update part for that. Most other tests involving FROM or USING seem
> to
> > load the graph explicitly using a data statement in the test
> manifest.
> > Could we have that here too?
>
> To quote SPARQL 1.0:
>
> [[
> Each FROM clause contains an IRI that indicates a graph to be used to
> form the default graph.
> ]]
>
> that might mean load - sometime systems do other things - but it means
> that the graph is placed into the dataset to be queried.  Load is a
> common way of doing that.  It's not naming the graph; GRAPH is used to
> name and access the data.
>
>       Andy
>
> >
> >      Thanks --- Jan
> >
> >> -----------------
> >> PREFIX : <http://example.org/>
> >>
> >> CONSTRUCT
> >> FROM <data.ttl>
> >> WHERE { ?s ?p ?o }
> >> -----------------
> >> so the query loads the data that way.
> >>
> >>      Andy
> >>
> >>
> >>
> >

Received on Monday, 19 November 2012 16:35:35 GMT

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