backend/app/models/dataset.py

from sqlalchemy import Column, Integer, String, Text
from backend.app.db import Base


class Dataset(Base):
    __tablename__ = "datasets"

    id = Column(String, primary_key=True, index=True)
    name = Column(String, nullable=False)
    file_path = Column(String, nullable=False)
    row_count = Column(Integer, nullable=False)
    column_count = Column(Integer, nullable=False)
    schema_json = Column(Text, nullable=False)
    profile_json = Column(Text, nullable=False)