presto-jdbc/src/main/java/io/prestosql/jdbc/PrestoConnection.java/PrestoConnection/getClientInfo
class PrestoConnection:    @Override
    public Properties getClientInfo()
            throws SQLException
    {
        Properties properties = new Properties();
        for (Map.Entry<String, String> entry : clientInfo.entrySet()) {
            properties.setProperty(entry.getKey(), entry.getValue());
        }
        return properties;
    }