[einpoklum]

Note that:

* The comparison used a single, simple, query: filter, group by, and sum.

* The comparison does not include repeated multiple queries (similar or dissimilar).

* A moderate amount of data is used.

This is certainly relevant and important, but it's not an extensive comparison.

[arjenpdevries]

(All the possible extensions you mention would be beneficial for the solution using DUCKDB.)