This function is called to enable (start) RDF Publication.
SQL> DB.DBA.RDF_REPL_START();
RDF_REPL_GRAPH_INS()
RDF_RDF_REPL_GRAPH_DEL()
sub_schedule()
repl_disconnect()
repl_grant()
repl_new_log()
repl_pub_add()
repl_pub_init_image()
repl_pub_remove()
repl_publish()
repl_revoke()
repl_sched_init()
repl_server()
repl_server_rename()
repl_stat()
repl_status()
repl_subscribe()
repl_sync()
repl_sync_all()
repl_text()
repl_this_server()
repl_unpublish()
repl_unsubscribe()