2026-01-09

What's Changed

• Add multi-column user-defined aggregate functions to close #1966
• Add SEPARATOR clauses and fix ORDER BY for GROUP_CONCAT to close #2413
• Improve UNION to support parenthesised SELECT and ORDER BY to close #2414
• Fix aggregate functions (COUNT/MAX/MIN) for PARTITION BY to close #2408
• Fix CSV importer to respect column-type to close #1181
• Fix GROUP BY with aliased expressions to close #1968
• Fix UNION ALL across NOT IN clause to close #1146
• Make CLOSE a context-aware keyword to close #2248
• Make OPEN a context-aware keyword to close #2224

New Contributors

• Thank you to @ericmort who made their first contribution that closed both #2224 and #2248

Full Changelog: v4.16.0...v4.17.0