SQLAlchemy filter_by json列

from sqlalchemy import create_engine, Column, Integer, String
from sqlalchemy.dialects.postgresql import JSON
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker

# 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)
    data = Column(JSON)

# 过滤JSON列
results = session.query(MyTable).filter_by(data={'key': 'value'}).all()

# 打印查询结果
for result in results:
    print(result.id, result.data)

# 关闭数据库连接
session.close()