ORDER BY question - Mailing list pgsql-sql

Hi,

For example I have a table like this

ID    Name
1    A
1    B
2    C
2    D

And I have a Query like this:
SELECT * FROM table ORDER BY ID.

Would my result always give me the same order or is there may be a possible
different result?

For example?

1    B
1    A
2    D
2    C