In order to measure a Cypher query performance, we will have to look at the Cypher query planner, which details the operations performed under the hood. In this section, we introduce the notions to learn how to access the Cypher execution plan. We will also deal with some good practices to avoid the worst operations in terms of performance, before concluding with a well-known example.
Cypher query planner
As you would do with SQL, you can check the Cypher query planner to understand what happens under the hood and how to improve your query. Two options are possible:
- EXPLAIN: If you do not want the query to be run, EXPLAIN won't make any changes to your graph.
- PROFILE: This will actually run the query and alter your graph, together with measuring performance.
In the rest of this chapter, we will use a dataset released by Facebook in 2012 for a recruiting competition hosted by Kaggle. The dataset can be downloaded here: https...
