CODEWITHSUNDEEP
graphneo4jcypherneo4j-apoc
Yashvardhan Nanavati
Yashvardhan Nanavati

Reputation: 192

Neo4j: Match APOC path using one node as optional in the specified path

I am using the following neo4j cypher query on my graph:

MATCH (start:N1{id:'xyz'})
CALL apoc.path.expandConfig(start, {sequence:'N1, a>, N2, b>, N3, c>, 
N4', maxLevel:3}) YIELD path
RETURN path
ORDER BY length(path) DESC

Now I want to keep N3 as optional. Like if the link N2-b->N3 is unavailable, it should then check for N2-b->N4 and so on. I know I can do two separate queries and check. But is there a way to keep N3 optional in this query itself?

Thanks in advance!

Upvotes: 0

Views: 177

Answers (1)

InverseFalcon
InverseFalcon

Reputation: 30397

No, this currently isn't possible. If there was a different node to use instead this would work, as you could accept a different label in place of the node (or any node label if you didn't care), but there isn't a way to use the sequences here where the number of nodes/rels in the defined sequence isn't constant.

Upvotes: 1

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