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CommentResponse:AD-1
Draft reply to: AD-1
Alexander,
Thank you for your comments on BINDINGS.
The working group has reworked what was previously BINDINGS with a new VALUES clause that can be used for inline data at any point in the graph pattern where a pattern group element can be given. The details are in the editors' working draft [1] and the grammar.
The syntax is a little different from BINDINGS to make the one variable/several variables cases a little clearer as this is the emerging use for VALUES, not it's original motivation from federated query.
so:
SELECT * { VALUES ?x { :x1 :x2 } ?x rdfs:label ?label . }
SELECT * WHERE { VALUES (?dayIDCheck ?dayName) { (0 "Sunday"@en) (1 "Monday"@en) (2 "Tuesday"@en) (3 "Wednesday"@en) (4 "Thursday"@en) (5 "Friday"@en) (6 "Saturday"@en) } BIND (0 AS ?dayID) FILTER (?dayIDCheck = ?dayID) }
VALUES can be used where BINDINGSs was allowed but also multiple VALUES clauses are allowed within the graph pattern and will cause a join of each table of inline data with the query pattern matching. VALUES clauses are allowed on sub-queries.
We would be grateful if you would acknowledge that your comments have been answered by sending a reply to this mailing list.
Andy, on behalf of the SPARQL WG.
[1] http://www.w3.org/2009/sparql/docs/query-1.1/rq25.xml#inline-data