@Override
  public String getSchema() throws SQLException {
    if (getSqlDialect().equals(Constant.TABLE_DIALECT)) {
      return getDatabase();
    }
    throw new SQLException("Does not support getSchema");
  }
ConnectionTimeout and SocketTimeout. Unit: ms. If not set, default value 0 will be used, which
means that there's no timeout in the client side.
iotdb-client/jdbc/src/main/java/org/apache/iotdb/jdbc/IoTDBConnection.java