Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

Run the full-stack test: https://github.com/pingcap/tiflash/blob/335b124cab124828aadc318b7355f8390950f032/tests/fullstack-test2/ddl/alter_column_when_pk_is_handle.test, it will fail probability: https://ci.pingcap.net/blue/organizations/jenkins/tiflash-ghpr-integration-tests/detail/tiflash-ghpr-integration-tests/6648/pipeline

2. What did you expect to see? (Required)

Pass the test.

3. What did you see instead (Required)

The test fail,

Data is inconsistent between TiFlash and TiKV, the log shows that TiFlash use default value instead of 0:

The col_6 does not exist in stable:

4. What is your TiFlash version? (Required)

7dff463