Chapter 4. Returning Structured Data

In the previous chapter, we saw functions that return single values. These functions return either a "scalar," simple type such as an integer, text, or data; or a more complex type, similar to a row in the database table. In this chapter, we will expand these concepts and show you how to return your data to the client in more powerful ways.

We will also examine the following topics:

Let's start with a simple example and then add more features and variants as we go.