DROP INDEX IF EXISTS queue_tickets_reissued_from_idx;

ALTER TABLE queue_tickets
    DROP CONSTRAINT IF EXISTS queue_tickets_reissued_from_once_unique,
    DROP CONSTRAINT IF EXISTS queue_tickets_reissued_from_not_self_check,
    DROP CONSTRAINT IF EXISTS queue_tickets_reissued_from_project_fk,
    DROP COLUMN IF EXISTS reissued_from_ticket_id;