docs: private void fillTrackerFromXML()
      {
          for (VoltXMLElement e : m_schema.children) {
              if (e.name.equals("table")) {
                  String tableName = e.attributes.get("name");
                  String partitionCol = e.attributes.get("partitioncolumn");
                  String export = e.attributes.get("export");
                  String drTable = e.attributes.get("drTable");
                  String migrateTarget = e.attributes.get("migrateExport");
                  export = StringUtil.isEmpty(export) ? migrateTarget : export;
                  final boolean isStream = (e.attributes.get("stream") != null);
                  if (partitionCol != null) {
                      m_tracker.addPartition(tableName, partitionCol);
                  }
                  else {
                      m_tracker.removePartition(tableName);
                  }
                  if (!StringUtil.isEmpty(export)) {
                      m_tracker.addExportedTable(tableName, export, isStream);
                  } else {
                      m_tracker.removeExportedTable(tableName, isStream);
                  }
                  if (drTable != null) {
                      m_tracker.addDRedTable(tableName, drTable);
                  }
              }
          }
      }