from sqlalchemy import Column, Text, BigInteger, TIMESTAMP, VARCHAR from sqlalchemy.orm import declarative_base Base = declarative_base() class KeywordWithContent(Base): __tablename__ = "keyword_with_content" id = Column(BigInteger, primary_key=True, autoincrement=True, comment="主键id") keyword_id = Column(BigInteger, nullable=False, comment="关键词id") content_id = Column(BigInteger, nullable=False, comment="内容id") create_time = Column(TIMESTAMP, nullable=False, server_default="CURRENT_TIMESTAMP", comment="创建时间")