v0.6.32-nightly

What's Changed

Bug Fixes

• ISSUE-3828 MySQL Driver Compalibility (#3830) by @TCeason

Build/Testing/CI

• Add test case for pr-3830 (#3846) by @TCeason

Improvement

• dal2: Polish CallbackReader implement (#3842) by @Xuanwo
• Refactor: remove unused field in StateMachine struct (#3843) by @lichuang
• [metasrv] refine transaction impl (#3837) by @ariesdevil
• Range filter support multi-column expression (#3835) by @zhyass

Others

• Add test case for pr-3830 (#3846) by @TCeason
• dal2: Polish CallbackReader implement (#3842) by @Xuanwo
• Refactor: remove unused field in StateMachine struct (#3843) by @lichuang
• ISSUE-3828 MySQL Driver Compalibility (#3830) by @TCeason
• Fix typo (#3839) by @junli1026