ALTER TABLE signals.feature
    DROP CONSTRAINT IF EXISTS feature_heading_null_check,
    DROP CONSTRAINT IF EXISTS feature_pos_null_check,
    ADD COLUMN assignment_id bigint REFERENCES ugc.assignment(assignment_id),
    ADD COLUMN user_id text,
    ADD COLUMN gdpr_deleted boolean,
    ADD COLUMN show_authorship boolean,
    ADD COLUMN deleted_by_user boolean,
    ADD COLUMN walk_object_id bigint REFERENCES signals.walk_object(id);

ALTER TABLE rides.queued_photo_id
    DROP CONSTRAINT IF EXISTS queued_photo_id_photo_id_fkey;
