I recently encountered a problem loading a few hundred CSV files, which contained mismatched schemas due to a handful of “extra” columns. This turned out to be not an easy problem for Polars to solve, in all its Rust glory. That made me curious: how does DuckDB handle mismatched schemas of CSV files? Of course, […] The post DuckDB … Merge Mismatched CSV Schemas. (also testing Polars) appeared first on Confessions of a Data Guy.
