Objects

Together, the sequence of links and property navigation creates a path expression. Each path expression denotes a set of objects (if it terminates with a link) or scalars (if it terminates with a property).

A path expression that terminates with a link may be surprising at first:

This is because all objects have an id, which is the only property displayed by default if we do not specify a shape to return. Adding a shape to the query with one or more properties will replace the default id output with the property or properties in the shape:

Note the difference between specifying a shape for an object and a path that simply terminates with a property.

In the query above the title property is used to specify a shape for a query on Content objects (instead of just showing the id), while in the following query only a set of the title property — a set of str scalars — is returned.