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Saikiran Gosikonda
Saikiran Gosikonda

Reputation: 1035

How the search works in neo4j?

If we want to find a person details using the personName in neo4j, we need go through all the nodes that are with label person. But in relational database we can do it just by going to the person table and finds the record. So, how this searching works in neo4j? I mean

1) Is it first finds all the nodes with label person and than searches in those nodes to match with the personName

OR

2) Searches every node on the way it encounters, than if the label is person than checks for personName. If not matches than goes to another node and so on..

Upvotes: 2

Views: 89

Answers (1)

Stefan Armbruster
Stefan Armbruster

Reputation: 39915

If there is a schema index on label :Person and property personName (CREATE INDEX ON :Person(personName)) the following cypher statement will be a done by a simple index lookup:

MATCH (n:Person{personName:'John'}) RETURN n

If the index does not exist, Neo4j will iterate over all nodes having the Person label and filter them by their property (which is somehow comparable to a full table scan in relational world).

Upvotes: 5

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