You completely lost me at the sum types part. Humanity needs sum types... so that we can generate offensively denormalized RDBMS schemas? Echos of OOP-mania. H

You completely lost me at the sum types part. Humanity needs sum types... so that we can generate offensively denormalized RDBMS schemas? Echos of OOP-mania. However, I strongly agree about "pointless portability". 'Django' would be perfect if it just focused on Postgres. Cut the call stack in half and add more power+perf. Point SQLite users to SQLAlchemy, and forget about the others.