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


![left](./student-guide/diagram/30-consistent-read-01-06.png)
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At the T4 moment, TiFlash waited until the raft log index of key = 999 was 31, and confirmed that the value of key = 999 must have been copied, so it read the value 7 of key = 999, as shown in the figure