@Override
    public String getClientInfo(String name) throws SQLException {
        checkOpen();
        if (ClientInfoProperties.APPLICATION_NAME.getKey().equals(name)) {
            return appName;
        } else {
            return null;
        }
    }
Returns configuration for current connection. Changes made to the instance of configuration may have side effects.
Application should avoid making changes to this object until it is documented.
@return - reference to internal instance of JdbcConfiguration
jdbc-v2/src/main/java/com/clickhouse/jdbc/ConnectionImpl.java