Neo4j Cypher: control order of MATCH based on input array?

Question

I'm writing a query that iterates over some set of nodes:

MATCH (foo:Bar)
WHERE foo.id IN {ids}

Is there any way for me to specify/require/ensure that the matched nodes be in the same order as the input ids array?

As an analogy, with Neo4j 1.x, this was the behavior with native ID lookups:

START foo=node({ids})

For trivial cases, I can always re-order the results on the client myself. In this particular case, my query does some additional processing, and I want to make sure the nodes get processed in the right order.

Here's a console example to experiment with:

http://console.neo4j.org/r/l5oouj

Thanks!

Answer 1

UNWIND to the rescue!

UNWIND {ids} AS id
MATCH (foo:Bar {id: id})

http://console.neo4j.org/r/vit7c8