Clarification on blank nodes in DELETE templates.

http://www.w3.org/2009/sparql/meeting/2010-03-09#resolution_2

[[
RESOLVED: Blank nodes in DELETE templates act as "wild cards", 
effectively as variables bound to all RDF terms; the same blank node 
cannot be used in the WHERE clause and the template, or in multiple 
BGPs, SteveH, dcharbon2, LeeF abstaining
]]


DELETE templates include the form GRAPH ?? { ... } and my question is 
about the ??

Do we allow

DELETE WHERE { GRAPH [] { ?s ?p ?o } }
DELETE WHERE { GRAPH _:a { ?s ?p ?o } }
DELETE { GRAPH [] { ?s ?p ?o } } WHERE { ?s ?p ?o }

(although by scoping _:a can't ever be the same as another _:a?)

 Andy

Received on Thursday, 29 April 2010 21:06:31 UTC