match p = (n)-[:LinkTo*1..]->(m) WHERE SIZE ( (m)-[:LinkTo]->() ) = 0

return p, length(p) order by length(p) desc limit 10

or

match (n),(m)

with n, m where id(n) < id(m)

match p = shortestPath( (n)-[:LinkTo*1..]->(m) )

return p, length(p) order by length(p) desc limit 10



On Sun, Jan 22, 2017 at 11:06 AM, Krishna Mahi <[email protected]>
wrote:

> I have been trying hard to find out longest path in a complex network. I
> have been through many questions in StackOverflow and Internet, but none
> could help me. I have written a CQL as
>
> start n=node(*)
> match p = (n)-[:LinkTo*1..]->(m)
> with n,MAX(length(p)) as L
> match p = (n)-[:LinkTo*1..]->(m)
> where length(p) = L
> return p,L
>
>
> I don't get any solution. Neo4J would keep running for the answer, and I
> also tried executing it in Neo4J Cloud Hosting. I didn't any solution even
> there, but got an error "Error undefined-undefined" I am in dire need of a
> solution. The result for this answer will help me complete my project. So,
> anyone please help me in correcting the query.
>
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