Replies: 3 comments 1 reply
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Thank you for raising this. There is indeed no way to query the union graph using only SPARQL syntax in Oxigraph at the moment. However, if you add the |
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Hi Thomas, thank you for your quick response! I'll check with Zazuko if the connection to the internal Oxigraph DB can be configured accordingly and will update this reply in case I find a solution. |
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Zazuko has now added a parameter, to that effect, e.g.: See the comment on their GitHub page. |
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My next wish ;-) would be an IRI or URN to refer to the standard default graph, something like
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Hi there, I'm using Oxigraph as part of Zazuko's "SPARQL Notebook" VScode extension. I'd like simple queries like "SELECT * WHERE { ?s ?p ?o }" to run over all graphs, not only the default graph (which is to spec, but can get quite uncomfortable quite quickly). Ideally (in my case), but not essential, that union graph would be a union, not a merge , of all named graphs and the default graph.
I see that some option to this effect has already been added in different places like the CLI and JS interfaces (although I'm not clear about the details, see above). Some graph databases provide keywords that can be used in a FROM clause (although different ones, as this is not yet standardized). Is it possible to add such a query parameter to Oxigraph, or is it already available and I'm just not aware?
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