What's Changed

Thoughtful Bug Fix 🔧

• fix(mysql): set UNSIGNED_FLAG for unsigned integer columns by @TCeason in https://github.com/databendlabs/databend/pull/19400
• fix: upgrade raft-log: use pread to prevent race condition in concurrent chunk reads by @drmingdrmer in https://github.com/databendlabs/databend/pull/19401

Full Changelog: https://github.com/databendlabs/databend/compare/v1.2.877-nightly...v1.2.878-nightly