On 31/08/12 16:53, Rob Vesse wrote:
Well actually the use case that prompted this debate and my interpretation
is actually one of the DAWG 1.1 tests so it may turn out that the test is
actually wrongly defined currently.
The test in question is delete/delete-using-02.ru which is as follows:
ah ...
PREFIX : <http://example.org/>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
DELETE
{
?s ?p ?o .
}
USING <http://example.org/g3>
WHERE
{
GRAPH <http://example.org/g2>
{
:a foaf:knows ?s .
?s ?p ?o
}
}
So if your interpretation is correct (and I will assume it is) then this
update should have no effect because the WHERE clause should yield no
results, yet the manifest points to expected results which suggest we
should be deleting data. The Update spec says USING and USING NAMED
behave exactly the same as FROM and FROM NAMED so this test seems at odd
with that statement.
Is this test just plain incorrect?
yes.
http://lists.w3.org/Archives/Public/public-rdf-dawg/2012JulSep/0135.html
and I'm not the only one.
If this test is incorrect (which I'm beginning to suspect it is) we can do
away with the debate and take your interpretation of the spec to be
correct which makes life a whole lot easier for us because currently we
implement your interpretation of the spec and not having to change our
implementation is easier. (Of course I then have to go fix dotNetRDF
because I originally implemented your interpretation and later changed it
because of a debate with another developer over this same test)
Cheers,
Rob
