Did something like this, wich seems to be working (at least for me :-) ):
In my example the lowest level of nodes is "vC". Let's say it is the LOG of
actions taken by the users, so it is a link-like node between user accounts
and sites. (This is not the real use-case, but that one is not public).
And it has the most elements.
select max(in('eCD').Field_Of_vD), vC.Field_1, vC.Field_2 from (select
expand(in(eCD)) from vD) group by vC.Field_A, vC.field_B
In my example there is only 1 item attached as IN(class of vB) and
OUT(class of vD) attached to vC.
One can argue that vertice vC should be an edge, but there are more class
of nodes linked to vC.
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