PMFlow/backend/app/models/ingest_offset.py

25 lines
891 B
Python

"""Ingest offset model for incremental sync checkpoints."""
from __future__ import annotations
from typing import Any, Optional
from sqlalchemy import Integer, VARCHAR, UniqueConstraint
from sqlalchemy.orm import Mapped, mapped_column
from .base import Base
from .types import JSONB
class IngestOffset(Base):
__tablename__ = "ingest_offsets"
__table_args__ = (
UniqueConstraint("tenant_id", "channel", "offset_key", name="uq_ingest_offsets_tenant_channel_key"),
)
id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
channel: Mapped[str] = mapped_column(VARCHAR(32), nullable=False, index=True)
offset_key: Mapped[str] = mapped_column(VARCHAR(128), nullable=False, index=True)
offset_value: Mapped[str] = mapped_column(VARCHAR(255), nullable=False)
payload: Mapped[Optional[Any]] = mapped_column(JSONB, nullable=True)