Wraps the space-joined clauses in a where { … } block: the graph pattern a select or ask query
matches against, and the source a deleet or insert update draws its solutions from. Empty clauses,
such as those produced by nil, are dropped first; when none survives, the result is the empty fragment via
nil, which callers must guard against where a body is required.
Generates a SPARQL
WHEREclause.Wraps the space-joined clauses in a
where { … }block: the graph pattern a select or ask query matches against, and the source a deleet or insert update draws its solutions from. Empty clauses, such as those produced by nil, are dropped first; when none survives, the result is the empty fragment via nil, which callers must guard against where a body is required.