public Date getTestLatestUpdate(String feedID, String param){
		String query = "SELECT max(date) AS date FROM observations WHERE feedid='"+feedID+"'";
		Date result = utils.getCurrentTimeAsDate();
		try {
			Statement stmt = con.createStatement();
			ResultSet rs = stmt.executeQuery(query);
			if (rs.next()) result = rs.getTimestamp("date");
		} catch (SQLException e) {
			logger.warn("Invalid query: "+ query, e);
			e.printStackTrace();
		}
		return result;
	}