v1.2.645-nightly

What's Changed

Exciting New Features ✨

• feat(query): add date_diff function by @chagelo in #16560

Thoughtful Bug Fix 🔧

• fix(query): fix left outer join wrong result by @Dousir9 in #16601

Build/Testing/CI Infra Changes 🔌

• ci: Add iceberg tpch sqllogictests by @Xuanwo in #16598

Others 📒

• chore(query): improve variable parser by @sundy-li in #16599

New Contributors

• @chagelo made their first contribution in #16560

Full Changelog: v1.2.644-nightly...v1.2.645-nightly