code: private boolean isGeoColumn(String columnName, List<String> tableNames, boolean debugPrint) {
          List<String> geoColumnTypes = Arrays.asList("GEOGRAPHY", "GEOGRAPHY_POINT");
          return isColumnType(geoColumnTypes, columnName, tableNames, debugPrint);
      }
docs: Returns true if the <i>columnName</i> is a Geospatial column type, i.e.,
  a GEOGRAPHY_POINT (point) or GEOGRAPHY (polygon) column, or equivalents
  in a comparison, non-VoltDB database; false otherwise.