Method connect

compatibility/pg/java/PGTest.java:12–20

(String ip, int port, String user, String password)

        private List<Test> tests = new LinkedList<>();

        public void connect(String ip, int port, String user, String password) {
            try {
                String url = "jdbc:postgresql://" + ip + ":" + port + "/postgres";
                conn = DriverManager.getConnection(url, user, password);
                st = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
            } catch (SQLException e) {
                throw new RuntimeException(e);
            }
        }

        public void disconnect() {
            try {