Graph Data Processing with Cypher

7

Working with Lists and Maps

We have worked with lists and maps in earlier chapters in various queries. But we have not discussed how lists and maps can make Cypher queries more powerful. They are first-class types in Cypher, like string and integer, and can make it easy to build complex queries. This chapter discusses how we can handle both lists and maps as input and output. We will discuss how we can prepare lists from data, iterate lists to process data, handle nested maps, and return map projections.

The following aspects will be covered in this chapter:

• Working with lists
• Working with maps

We will be covering lists first. We will discuss in detail how lists work in Cypher and explore various ways we can manipulate and work with lists, ...