import datetime import uuid from sqlalchemy import Column, DateTime, Text from sqlalchemy.dialects.postgresql import UUID from app.db import Base class RetrievalInfo(Base): __tablename__ = "retrieval_info" id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4, nullable=False, index=True) host_id = Column(UUID(as_uuid=True), nullable=False) retrieve_info = Column(Text, default="", nullable=True) created_at = Column(DateTime, default=datetime.datetime.now)