Kimi WANG

Query optimizer choose to do table scan while index seek is possible

4

## Bug Report Please answer these questions before submitting your issue. Thanks! ### 1. Minimal reproduce step (Required) ##Table tasks and task_results form one to many relations. Our query joins...

Use alternative privilege escalation command to initialize the environment

10

### What problem does this PR solve? The `su` command is used in the `EnvInit` structure to initialize the tidb service account. However, the command is not always allowed in...