Method GetRawKey

internal/core/entry.go:309–341

** * decode the key of the entry * 1. in the case of list flag is DataLPushFlag or DataRPushFlag, the key is transformed from seq + user_key to user_key * so we need to decode the key to get the raw key * 2. in the case of sorted set flag is DataZAddFlag, the key is transformed from score + user

()

 * 3. All other cases, the key is the raw key
 */
func (entry *Entry) GetRawKey() ([]byte, error) {
	key := entry.Key

	switch entry.Meta.Ds {
	case DataStructureList:
		if entry.Meta.Flag != DataLPushFlag && entry.Meta.Flag != DataRPushFlag {
			return key, nil
		}

		if len(key) < 8 {
			return key, ErrInvalidKey
		}

		return key[8:], nil
	case DataStructureSortedSet:
		if entry.Meta.Flag != DataZAddFlag {
			return key, nil
		}

		strList := bytes.Split(key, []byte(SeparatorForZSetKey))
		if len(strList) != 2 {
			return key, ErrInvalidKey
		}

		return []byte(strList[0]), nil
	case DataStructureSet:
		return key, nil
	case DataStructureBTree:
		return key, nil
	default:
		return key, ErrDataStructureNotSupported
	}
}