Питання
📝 **Питання:** Чому асинхронні сеанси SQLAlchemy забороняють неявне завантаження зв’язків?
📋 Виберіть правильну відповідь.
💡 **Підказка:** Перечитайте наведену вище теорію, якщо не впевнені.
A Async sessions are measurably slower than sync sessions because every attribute access goes through an awaitable wrapper, and lazy loading would multiply that overhead across every relationship traversal during request handling B Implicit lazy loading triggers a hidden DB roundtrip on attribute access C It's a known SQLAlchemy bug — lazy loading was never properly implemented in the async path and the maintainers chose to disable it rather than ship a half-working feature in the public stable API surface today D Postgres doesn't allow more than one in-flight query per connection, and lazy loading would issue a query while another was already pending — async sessions enforce this Postgres-level constraint to avoid that exact problem class