replacement

etl_craft.handlers.sql.replacement

Recover rows on non-transactional overwrites and retain original objects during promotion.

cleanup

cleanup(session: Session, name: str) -> None

Cleanup cannot turn a committed replacement into a failed action.

promote

promote(session: Session, candidate: str, *, existing: bool) -> None

Keep the original object until promotion succeeds; restore its definition on failure.

recover_overwrite

recover_overwrite(session: Session) -> Iterator[None]

Keep a durable row copy; restore into the untouched definition when a later write fails.