Only question - does this require an alembic upgrade script?

What if your prod DB has values longer than the newly-enforced limits?

(other than that, it seems fine..)

Only question - does this require an alembic upgrade script?

So we are changing from a large text field to a large varchar, so DB side this
doesn't need any changes, it's not something that sqlalchemy will check, it's
something that is (db) server-side

What if your prod DB has values longer than the newly-enforced limits?

Since we do not change anything in prod and I am fairly sure that sqlalchemy
relies on the DB to behave correctly or barf when needed, this shouldn't be a
problem either.

:+1: then.