docs: private String translateSchema(String schemaName) throws SQLException {
  
          if (useSchemaDefault && schemaName != null
                  && schemaName.length() == 0) {
              ResultSet rs = executeSelect("SYSTEM_SCHEMAS", "IS_DEFAULT=TRUE");
  
              if (rs.next()) {
                  return rs.getString(1);
              }
  
              return schemaName;
          }
  
          return schemaName;
      }