migra/docs/comparison.md

| Feature | migra | alembic | django | | - | - | - | - | | Migration files required for DB changes during dev? | No, autosyncs | Yes, required | Yes, required | | Requires schema version number tracking | No version numbers involved | Yes, relies on version numbers | Yes, relies on version numbers | | Must store entire chain of migration files? | No, only need one file with pending changes | Yes, required | Yes, required | | ORMs supported | Supports any ORM or no ORM | SQLAlchemy ORM only | Django ORM only | | Testability | Explicitly tests for matching schema | Doesn't test | Doesn't test | | Needs copy of access to (copy of) current schema to generate migration scripts | Yes | No | No | | Databases supported | PostgreSQL only | Postgres, mysql, various others | Postgres, mysql, various others |