A boolean that defaults to false, indicating whether an error
should be raised when a SPARQL query selects variables that
are not mentioned in the query body.
A boolean that defaults to false, indicating whether an error
should be raised when a SPARQL query selects variables that
are not mentioned in the query body.
A query planner for SPARQL that processes queries without doing
any reordering of clauses or optimization, useful if the user
knows the best order for processing the query.