I didn't say it was impossible but there are specific situations in which it's very difficult. What I was unable to resolve was getting DuckDB to statically link with httpfs and I'm not the only one [1].

So being more specific, I don't know how I could get a static build of DuckDB to work with Parquet and httpfs (i.e. query S3) working in an app store environment. It was a day's work to get Arrow CPP to call back into Swift for the transport layer.

However I do now see that DuckDB recently provided an extension point for providing your own transport layer, so my point might well be moot for that reason [2].

[1] https://github.com/duckdb/duckdb/issues/16190 [2] https://github.com/duckdb/duckdb/pull/17464