v0.8.2-nightly

What's Changed

Exciting New Features ✨

• feat(planner): support settings set sql_dialect by @b41sh in #7175
• feat(planner): support union/union all by @xudong963 in #7160
• feat(query): add function-v2 concat/concat_ws by @sundy-li in #7167

Thoughtful Bug Fix 🔧

• fix(parser): fix parse float with E failed by @b41sh in #7186

Code Refactor 🎉

• refactor(meta): reduce long span info by @drmingdrmer in #7190
• refactor(meta-service): improve join-cluster by @drmingdrmer in #7198

Documentation 📔

• docs: keep only one cloud page by @bohutang in #7195
• docs: query-metrics by @TCeason in #7202

Full Changelog: v0.8.1-nightly...v0.8.2-nightly