I mean polars is great, but there's nothing fundamentally impossible about polars providing similar performance to DuckDB, polars is written in rust, and really a lazy dataframe just provides an alternative frontend (sql being another frontend).
There's nothing in the architecture that would make it so that performance in one OLAP engine is fundamentally impossible to achieve in another.
There's nothing in the architecture that would make it so that performance in one OLAP engine is fundamentally impossible to achieve in another.