v0.8.10-nightly

What's Changed

Exciting New Features ✨

• feat(function-v2): implement is_null and is_not_null by @JasonLi-cn in #7282
• feat(meta-service): admin api: /v1/ctrl/trigger_snapshot let the leader send a snapshot to every follower by @drmingdrmer in #7298
• feat(storage): add topn pruner by @sundy-li in #7302
• feat(planner): Push limit down further by @TCeason in #7273
• feat(planner): Implement cost-based optimization by @leiysky in #7187

Thoughtful Bug Fix 🔧

• fix(planner): Fix case sensitivity of USING clause by @leiysky in #7304
• fix(planner): Validate duplicated column name when creating table by @leiysky in #7307

Full Changelog: v0.8.9-nightly...v0.8.10-nightly