-- B10保存已由S02确认的引文拒绝；不覆盖原回合，也不重置纠正次数。
CREATE TABLE evaluation.muse_comparison_rejection (
    unit_id uuid NOT NULL REFERENCES evaluation.muse_evaluation_unit(unit_id),
    sequence smallint NOT NULL CHECK(sequence BETWEEN 1 AND 3),
    task_id uuid NOT NULL REFERENCES evaluation.muse_task(task_id),
    attempt_id uuid NOT NULL REFERENCES evaluation.muse_attempt(attempt_id),
    call_id text NOT NULL UNIQUE,
    user_input_hash text NOT NULL CHECK(user_input_hash ~ '^[0-9a-f]{64}$'),
    output jsonb NOT NULL,
    failure_code text NOT NULL CHECK(failure_code IN ('PAIRWISE_QUOTE_NOT_FOUND','PAIRWISE_NOT_EXECUTED')),
    previous_hash text CHECK(previous_hash ~ '^[0-9a-f]{64}$'),
    record_hash text NOT NULL CHECK(record_hash ~ '^[0-9a-f]{64}$'),
    created_at timestamptz NOT NULL DEFAULT clock_timestamp(),
    PRIMARY KEY(unit_id, sequence)
);
CREATE TRIGGER comparison_rejection_guard BEFORE UPDATE OR DELETE ON evaluation.muse_comparison_rejection
FOR EACH ROW EXECUTE FUNCTION public.muse_guard_literary_history();