[ntonozzi]

I really like the extension pattern. I wish more of the tables at my company used it.

Another huge benefit that we're realizing as we move some of our heaviest tables to this pattern is that it makes it really easy to index a core set of fields in Elasticsearch, along with a tag to associate it with a particular domain model. This has drastically cut down on our search-specific denormlization and let us avoid expensive index schema updates.