import java.sql.*;

public class dbmdrsmd {

	public static void main(String args[]) throws Exception {
		Class.forName("org.postgresql.Driver");
		Connection conn = DriverManager.getConnection("jdbc:postgresql://localhost:5750/jurka","jurka","");
		DatabaseMetaData dbmd = conn.getMetaData();
		ResultSet rs = dbmd.getColumns("","%","%","%");
		ResultSetMetaData rsmd = rs.getMetaData();
		for (int i=1; i<=rsmd.getColumnCount(); i++) {
			System.out.println(i+" = "+rsmd.getColumnName(i));
		}
		rs.close();
		conn.close();
	}
}