The biggest reason to do this in Go is to approximate enums. Now anywhere the `keyword` type is used, it must be one of the ones specified there (or you'd have

The biggest reason to do this in Go is to approximate enums. Now anywhere the `keyword` type is used, it must be one of the ones specified there (or you'd have to cast a string). Yep, it would be a little harder to implement all of the SQL spec in a single post. Maybe over time though.