groupOptions.setVersion(sumVersions);
priorFile = null;
if (priorSet != null) {
String rootUuid = group.getRoot().getUuid().toString();
for (FileDescriptorProto file : priorSet.getFileList()) {
DescriptorProto firstMessage = file.getMessageType(0);
MessageOptions options = firstMessage.getOptions();
if ((options != null) &&
(options.hasExtension(TableOptions.fdbsql))) {
TableOptions tableOptions = options.getExtension(TableOptions.fdbsql);
if (tableOptions.getUuid().equals(rootUuid)) {
priorFile = file;