An explanation of DuckDB 2.0 alpha performance improvements, detailing speed gains in recursive CTEs, VARIANT types, and asynchronous I/O, along with data modeling tips.
- •Recursive CTE processing speed improved by up to 90 times compared to version 1.5.5.
- •The VARIANT type is six times faster than JSON text, and asynchronous I/O on S3 was sped up by 2.4 times.
- •Specific methods for data modeling to achieve speed improvements are explained.