Run the RDF-DB garbage collector until no garbage is left and all
tables are fully optimized. Under normal operation a seperate thread
with identifier __rdf_GC performs garbage collection as long as
it is considered `useful'.
Using rdf_gc/0 should only be needed to ensure a fully clean
database for analysis purposes such as leak detection.
Tag confusing pages with doc-needs-help|Tags are associated to your profile if you are logged in