if (needsSort) {
tableSequence = new ArrayList<String>();
Logger.info("Retrieving and sorting tables. This may take a while, please be patient.");
// get sorted tables
final SQLMetaData meta = new SQLMetaDataBuilder().getMetaData(session, tableSet.iterator());
final DependencyResolver dr = new DependencyResolver(meta.getTables());
resolverResult = dr.sortTables();
final Collection<Table> tabs = resolverResult.getTables();
final Iterator<Table> it = tabs.iterator();
while (it.hasNext()) {
tableSequence.add(it.next().getName());