// ErrDuplicatedKey occurs when there is a unique key constraint violation
	ErrDuplicatedKey = errors.New("duplicated key not allowed")
	// ErrForeignKeyViolated occurs when there is a foreign key constraint violation
	ErrForeignKeyViolated = errors.New("violates foreign key constraint")
	// ErrCheckConstraintViolated occurs when there is a check constraint violation
	ErrCheckConstraintViolated = errors.New("violates check constraint")

	}

	switch event.Action {
	case lifecycle.DeleteAllVersionsAction, lifecycle.DelMarkerDeleteAllVersionsAction:
		// Skip if bucket has object locking enabled; To prevent the
		// possibility of violating an object retention on one of the
		// noncurrent versions of this object.
		if lr.LockEnabled {
			return lifecycle.Event{Action: lifecycle.NoneAction}
		}