with engine.connect() as conn:
        result = conn.execution_options(stream_results=True).execute(
            Customer.__table__.select().limit(n)
        )
        while True:
            chunk = result.fetchmany(10000)
            if not chunk:
                break
            for row in chunk:
                row["id"], row["name"], row["description"]

    with engine.connect() as conn:
        result = conn.execution_options(stream_results=True, arraysize=10000).execute(
            Customer.__table__.select().limit(n)
        )
   for chunk in result:
          for row in chunk:
                row["id"], row["name"], row["description"]