Bug Report

Please answer these questions before submitting your issue. Thanks!

[2021-08-20T05:32:29.054Z] PASS: db_integration_test.go:1352: testIntegrationSuite6.TestCreateTableTooLarge	7.878s

1. Minimal reproduce step (Required)

in ci https://ci.pingcap.net/blue/organizations/jenkins/tidb_ghpr_check_2/detail/tidb_ghpr_check_2/27726/pipeline

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

3. What did you see instead (Required)

4. What is your TiDB version? (Required)