Please refer to the file http://aditsu.freeunixhost.com/test.zip
(replace zip with html if you get a referer error). In the "test"
layout I have a portal with records from table tab3, displaying fields
from tab3 and tab2. If you look at the relationships, tab3::ID2 should
be identical to tab2::ID; however, in that portal it is not. For any
record in tab3, only the first record from tab2 is matched. Why is
that?

Adrian