Thought-provoking post on refactoring data rather than code https://jreyesr.github.io/posts/data-refactorings/ - does anyone know of a Fowler-style catalog of data refactorings? (Note: not looking for filter, select, group by, and other operations on data, but on equivalent of "extract method" or "introduce base class".)
Refactoring data as if it were code: a case for extending refactoring to static data - jreyesr's blog

In this article we extend the concept of refactorings, as used on source code, to data stored, for example, on YAML or JSON files. As an example, we extend the typical Rename Variable action to renaming a Kubernetes resource. We explore several scenarios that seem like a data-focused variant of code refactorings, why they may be useful. Then, we review some ways in which those data refactorings may be implemented, which tools could support them, and how the user experience may be like.

@gvwilson there are a bunch of tools that automate checking certain kinds of data against schema, and for longer-lived datasets I have defined immutable conditions that are supposed to hold at all times. That kind of approach works pretty nicely in the same vein as TDD but for data