对多列的元组使用where进行比较的SQLAlchemy查询

from sqlalchemy import create_engine, Column, Integer, String, and_
from sqlalchemy.orm import sessionmaker
from sqlalchemy.ext.declarative import declarative_base

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

# 创建映射类
Base = declarative_base()

class MyTable(Base):
    __tablename__ = 'my_table'
    id = Column(Integer, primary_key=True)
    column1 = Column(String)
    column2 = Column(String)

# 构建查询条件
condition = and_(MyTable.column1 == 'value1', MyTable.column2 == 'value2')

# 执行查询
results = session.query(MyTable).filter(condition).all()

# 处理查询结果
for result in results:
    print(result.id, result.column1, result.column2)

# 关闭数据库连接
session.close()