I've been getting some strange results with a Neo4j database I made (version 2.1.0-M01). I have a graph with the following relationship:
Node[211854]{name : "dst"} <-[:hasrel]- Node[211823]{name : "src"}
I've confirmed this relationship using the following query:
START m=node(211854) MATCH (m)<-[r]-(n) RETURN m,r,n;
which returns a one row result, as expected:
| m | r | n
| Node[211854] | :hasrel[225081] | Node[211823]
The following query returns nothing, however:
START n=node(211823) MATCH (m)<-[r]-(n) RETURN m,r,n
Any thoughts on what might be happening? I've run these queries with and without indexes on the name properties for the nodes.
EDIT: Fixed typo with initial node number. EDIT2: I rebuilt the server and both queries return the results I expect. Perhaps the error was corruption in the first database?
Using the node id's is not such a good idea, you can use the properties on your node to query them.
For example:
MATCH (m)<-[r]-(n {name: "src"}) RETURN m,r,n;
Does that query return what you expected?
You have to invert the relationship-direction. As you are looking for incoming relationships for your node 211823, this is not one of them. It's an outgoing relationship.
Please also update your database to the current version: 2.1.2 http://neo4j.org/download
START n=node(211823) MATCH (m)-[r]->(n) RETURN m,r,n
Perhaps you should give your nodes and relationships more descriptive names, so you spot easier when you inverted a domain concept.
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