Having troubles understanding the relationship direction in returned paths.
I have a graph like this
(:START)-[:NEXT]->(:NODE)-[:NEXT]->(:NODE)...
Now I am matching all paths starting from the start node in the direction of :NEXT up to a length of 10, say. Query looks like
MATCH t=((:START)-[:NEXT*..10]->(:NODE))
RETURN t;
I am getting output paths with seemingly mixed up :NEXT directions like
(:START)-[:NEXT]->(:NODE)<-[:NEXT]-(:NODE)-[:NEXT]->(:NODE)<-...
and I can't understand where the alternating directions come from.
EDIT: The graph is just a straight line (with one direction). No cycles, no branch-offs. Please replicate the scenario in the shell with the following:
CREATE (s:START);
MATCH (s:START) MERGE (s)-[:NEXT]->(a:NODE)-[:NEXT]->(b:NODE)-[:NEXT]->(c:NODE)-[:NEXT]->(d:NODE);
MATCH t=((:START)-[:NEXT*..10]->()) return t;
+------------------------------------------------------------------------------+
| t |
+------------------------------------------------------------------------------+
| (:START)-[:NEXT]->(:NODE) |
| (:START)-[:NEXT]->(:NODE)<-[:NEXT]-(:NODE) |
| (:START)-[:NEXT]->(:NODE)<-[:NEXT]-(:NODE)-[:NEXT]->(:NODE) |
| (:START)-[:NEXT]->(:NODE)<-[:NEXT]-(:NODE)-[:NEXT]->(:NODE)<-[:NEXT]-(:NODE) |
+------------------------------------------------------------------------------+
See how in the returned paths, the arrows alternate in direction? That's what is confusing me.