[chore] Fix compilation errors reported by clang

[adonis0147]

Search before asking

• I had searched in the issues and found no similar issues.

Version

master

What's Wrong?

Failed to build the codebase by clang

What You Expected?

Build the codebase by clang successfully.

How to Reproduce?

export DORIS_TOOLCHAIN=clang
./build.sh --be --clean

Anything Else?

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct