Re: [Virtuoso-users] Maybe problems with named graphs

Hello Alexandre, > But I still don't understand the meaning of "the dataset includes an > empty graph for the default graph". > > What does that mean for you ? The default graph is always part of context of SPARQL processor. That is union of all graphs specified in FROM, (or something implementa

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Re: [Virtuoso-users] Maybe problems with named graphs

> We've had a chat about this internally and there is a little bug here. You > shouldn't have "anything" where you currently have "everything" :-) This is > a subtle SPARQL spec oversight on our part. > Thank you, I'm relieved now :) Alexandre.

Re: [Virtuoso-users] Maybe problems with named graphs

Alexandre Bertails wrote: "If there is no |FROM| clause, but there is one or more |FROM NAMED| clauses, then the dataset includes an empty graph for the default graph." Is this the expected (not "excepted", sorry) behaviour ? In a nutshell, yes :-) FRO

Re: [Virtuoso-users] Maybe problems with named graphs

> "If there is no |FROM| clause, but there is one or more |FROM NAMED| >> clauses, then the dataset includes an empty graph for the default graph." >> >> Is this the expected (not "excepted", sorry) behaviour ? >> > > In a nutshell, yes :-) > > FROM NAMED does not implicitly negate the existence of

Re: [Virtuoso-users] Maybe problems with named graphs

Alexandre Bertails wrote: Hi everybody, First, let me write here an extract form : "If there is no |FROM| clause, but there is one or more |FROM NAMED| clauses, then the dataset includes an empty graph for the default graph." Now, le

[Virtuoso-users] Maybe problems with named graphs

Hi everybody, First, let me write here an extract form < http://www.w3.org/TR/rdf-sparql-query/#specifyingDataset> : "If there is no FROM clause, but there is one or more FROM NAMED clauses, then the dataset includes an empty graph for the default graph." Now, let me introduce my problem with a s

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