> I think your experience might be due to -- what it sounds like -- parsing the entire CSV into memory first (CREATE TABLE) and then processing after. That is n

> I think your experience might be due to -- what it sounds like -- parsing the entire CSV into memory first (CREATE TABLE) and then processing after. That is not an apples-to-apples original discussion was about CSV vs parquet "reader" part, so this is exactly apple to apple testing, easy to benchmark and I stand my ground. What you are doing downstream, it is another question which is not possible to discuss because no code for your logic is available. > I've seen your comments bashing Parquet in DuckDB multiple times, and I think you might be doing something wrong. like running one command from DuckDB doc. Also, I am not "bashing", I just state that CSV reader is faster.