What does the term “fully scoped” refer to in Looker?

The term "fully scoped" in Looker refers to field names that are complete with all necessary prefixes. This means that when you refer to a field, you include its relevant path, including the model, view, and field name, ensuring that Looker can uniquely identify that field within the entire data model. This practice is essential for avoiding ambiguity, especially in complex projects with multiple models and views, where fields may share similar names.

For instance, instead of simply referencing a field by its name alone, using a fully scoped reference like model.view.field_name makes it clear exactly which field you are talking about, regardless of the context in which it is used. This is particularly useful in LookML when combining fields from different views or models, as it ensures that you’re pulling the right data without confusion.

Other options, while they address the components of field definitions or scope, do not capture the complete notion of what it means for a field name to be "fully scoped."