# Mvcc (Continue...)

![left](./student-guide/diagram/MVCC04_aa_001_20220511.png)

------------------------------------------------------------
Finally, in Write CF, the pointer is empty, and KEY = 4 is found in Lock CF, indicating that user key = 4 is in a transaction, and in Default CF KEY = 4_150, the next value is KEY = 4_80. Since 80 is before 120, it is the required value. VALUE = Tony.