// isIndexedMetaV2 returns non-nil result if metadata is indexed.
// Returns 3x nil if not XLV2 or not indexed.
// If indexed and unable to parse an error will be returned.
func isIndexedMetaV2(buf []byte) (meta xlMetaBuf, data xlMetaInlineData, err error) {
	buf, major, minor, err := checkXL2V1(buf)
	if err != nil || major != 1 || minor < 3 {
		return nil, nil, nil
	}
	meta, buf, err = msgp.ReadBytesZC(buf)
	if err != nil {