@Override
    public int getNetworkTimeout() throws SQLException {
        //TODO: Should this be supported?
        if (!config.isIgnoreUnsupportedRequests()) {
            throw new SQLFeatureNotSupportedException("getNetworkTimeout not supported", ExceptionUtils.SQL_STATE_FEATURE_NOT_SUPPORTED);
        }

        return -1;
    }
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