# MVCC - Cont'd

![`smart`](MVCC04_aa_002_20220511.png)

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Finally, the pointer points to null in Write CF, and KEY = 4 is found in Lock CF, indicating that user key = 4 is in a transaction.

If you find KEY = 4_150 in Default CF, the next value is KEY = 4_80. Since 80 is before 120, this is the value you need, VALUE = Tony.