I want to query a vertex in OrientDB graph database to get the second level
vertices, keeping the in between vertex id.
The relationship would be represented as such:
User <--edge--> User <--edge--> User
(1) (2) (3)
For User 1, I want to get all User 3 (distance of 2 edges), but I want to
keep as a result all User 2 rids. The direction isn't important (will use
both() method to traverse)
An example:
#10:1 <--edge--> #10:2
#10:1 <--edge--> #10:3
#10:2 <--edge--> #10:4
#10:2 <--edge--> #10:5
#10:3 <--edge--> #10:6
For the example above, the query for #10:1 should return: (don't know how
to represent this any better, but the query should return the object from
the class User AND the rid from the intermediate User)
User(#10:4), #10:2
User(#10:5), #10:2
User(#10:6), #10:3
The query to find the vertices from the second level would look like: select
expend(both('edge').both('edge')) from #10:2 (of course the query can be
optimized with set function and other conditions in case of inter-relations
of the output users). To this output, I would like to see an additional
field (property / column, whatever you want to call it) where I can see the
in between vertex of this kind of relationship.
Hope somebody can help me with this, tell me if you need more information,
or if you did not understand something. Thank you.
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