fieldSelector := fields.Set{"ownerReferences.name": crObject.ObjectMeta.Name, "ownerReferences.uid": string(crObject.ObjectMeta.UID)}.AsSelector()
fieldSelector.String()
allStatefulSets := &v1beta1.StatefulSetList{}
err := r.client.List(
    ctx,
    &client.ListOptions{
        Namespace:     exStatefulSet.Namespace,
        LabelSelector: labels.Everything(),
        FieldSelector: fieldSelector,
    },
    allStatefulSets)