class Schema {

    public static Pair<Set<KeyspaceTablePair>, Set<KeyspaceTablePair>> difference(Schema first, Schema second) {
        return Pair.of(Sets.difference(first.qualifiedTables, second.qualifiedTables), Sets.difference(second.qualifiedTables, first.qualifiedTables));
    }

    public  Schema(Metadata metadata, JobConfiguration configuration);
    public  Schema(Set<KeyspaceTablePair> qualifiedTables);

}