考虑 SQLAlchemy 中的以下声明性用户模型:
class User(Base):
id = Column(Integer, primary_key=True)
username = Column(String(50), unique=True)
email = Column(String(1024), unique=True)
points = Column(Integer, default=0)
achievements = relationship('Achievement',
secondary=achievement_association_table,
backref='users')
reviews = relationship('Review', backref='author', lazy='dynamic')
moderated = Column(Boolean, default=True)
当我执行 aSELECT * FROM user
时,我注意到查询没有返回我的所有列,并且只显示了“current_user”列,我只能推测这是使用 Flask-Login 的结果。
进行查询User.query.all()
导致以下 SQL:
SELECT "user".created AS user_created, "user".modified AS user_modified, "user".id AS user_id, "user".username AS user_username, "user".email AS user_email, "user".points AS user_points, "user".moderated AS user_moderated
谁能帮我理解为什么这个表是双引号的?我的其他(类似定义的)声明性模型都没有表现出这种行为。
提前致谢!