zb0001--
		field, err = dc.ReadMapKeyPtr()
		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		switch msgp.UnsafeString(field) {
		case "OlderThan":
			err = z.OlderThan.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "OlderThan")
				return
			}
		case "CreatedBefore":
			if dc.IsNil() {
				err = dc.ReadNil()
				if err != nil {
					err = msgp.WrapError(err, "CreatedBefore")

		case "NewerThan":
			z.NewerThan, err = dc.ReadDuration()
			if err != nil {
				err = msgp.WrapError(err, "NewerThan")
				return
			}
		case "OlderThan":
			z.OlderThan, err = dc.ReadDuration()
			if err != nil {
				err = msgp.WrapError(err, "OlderThan")
				return
			}
		case "CreatedAfter":
			z.CreatedAfter, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "CreatedAfter")

// BatchKeyRotateFilter holds all the filters currently supported for batch replication
type BatchKeyRotateFilter struct {
	NewerThan     time.Duration `yaml:"newerThan,omitempty" json:"newerThan"`
	OlderThan     time.Duration `yaml:"olderThan,omitempty" json:"olderThan"`
	CreatedAfter  time.Time     `yaml:"createdAfter,omitempty" json:"createdAfter"`
	CreatedBefore time.Time     `yaml:"createdBefore,omitempty" json:"createdBefore"`

		case "NewerThan":
			err = z.NewerThan.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "NewerThan")
				return
			}
		case "OlderThan":
			err = z.OlderThan.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "OlderThan")
				return
			}
		case "CreatedAfter":
			z.CreatedAfter, err = dc.ReadTime()
			if err != nil {
				err = msgp.WrapError(err, "CreatedAfter")

	isStorageClassOnly := len(r.Flags.Filter.Metadata) == 1 && strings.EqualFold(r.Flags.Filter.Metadata[0].Key, xhttp.AmzStorageClass)

	skip := func(oi ObjectInfo) (ok bool) {
		if r.Flags.Filter.OlderThan > 0 && time.Since(oi.ModTime) < r.Flags.Filter.OlderThan.D() {
			// skip all objects that are newer than specified older duration
			return true
		}

		if r.Flags.Filter.NewerThan > 0 && time.Since(oi.ModTime) >= r.Flags.Filter.NewerThan.D() {