打印已编译的sqlalchemy查询

from sqlalchemy import create_engine, MetaData, Table, Column, Integer, String
from sqlalchemy.orm import sessionmaker

# 创建数据库引擎和会话
engine = create_engine('数据库连接字符串')
Session = sessionmaker(bind=engine)
session = Session()

# 定义数据表结构
metadata = MetaData()
users = Table('users', metadata,
              Column('id', Integer, primary_key=True),
              Column('name', String),
              Column('age', Integer))

# 编译查询
query = users.select().where(users.c.age > 18)

# 打印已编译的查询
print(query)

# 执行查询
result = session.execute(query)
for row in result:
    print(row)

# 关闭会话
session.close()