I'm not talking about all validation, I'm talking about a length constraint on a string (that isn't something like a US state, which should be a two-character f

I'm not talking about all validation, I'm talking about a length constraint on a string (that isn't something like a US state, which should be a two-character field) -- already a pretty uncommon thing. At work, our codebase has 975 instances of a column storing a text value, and the length is material only in a very small handful of those.