JDBC and intervals

Hi.

I'm trying to get an interval from a postgresql query.

I was using jdbc for postgresql 7.3.x, and my query was:

ResultSet.executeQuery("SELECT (final_date - initial_date) FROM
some_table") ;

When I did something like this:
System.out.println(resultSet.getObject(1)), , I got the message: "
Error = No class found for interval"

So, I tried upgrating to postgresql 7.4.x, and if I do
System.out.println(resultSet.getObject(1)) , I get : null.

So, is there a way to get an interval from a postgresql query ?, or am I
doing something wrong ??

Thanks for any help.
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Pablo A. Velasquez Rivas
Computer Science Engineer
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