# Tiflash Core Feature: Consistent Read (Continue...)


![left](./student-guide/diagram/30-consistent-read-01-04.png)

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At the time of T3, in order to satisfy the client's read, TiFlash went to TiKV to confirm the current sequence number (raft log index) of the raft log, and obtained the raft log with key = 1 as 125 and key = 999. The index value of 31 is as follows: