Neo4j和Cypher语法：匹配节点组/集合中的所有路径

Question

I'm trying to match all the paths (up to a certain length) among a group of nodes. I can successfully do so by issuing the following query:

MATCH (n) WHERE ID(n) IN [1, 2, 3, 4, 5]
MATCH (m) WHERE ID(m) IN [1, 2, 3, 4, 5]
MATCH paths = allShortestPaths((n)-[*..3]-(m))
RETURN paths

I'm satisfied with both the result itself and its speed. What I don't understand is whether there is a way of defining a variable to define the collection [1, 2, 3, 4, 5] just once. Sort of:

x = [1, 2, 3, 4, 5]
MATCH (n) WHERE ID(n) IN x
MATCH (m) WHERE ID(m) IN x
MATCH paths = allShortestPaths((n)-[*..3]-(m))
RETURN paths

Is this possible? I've tried several alternatives (using WITH and AS) but with no luck.

Thanks

Answer 1

Use:

WITH [1, 2, 3, 4, 5] AS x

As in:

WITH [1, 2, 3, 4, 5] AS x
MATCH (n) WHERE ID(n) IN x
MATCH (m) WHERE ID(m) IN x
MATCH paths = allShortestPaths((n)-[*..3]-(m))
RETURN paths

By the way, there seems to be a regression in neo4j-community-2.2.0-M03, which causes an error with the above query. M02 seems to have no problems.