You may find easy to write parquet from one tool and read into duckdb, but it isn't always that simple. There are multiple variants of parquet, and they are no

You may find easy to write parquet from one tool and read into duckdb, but it isn't always that simple. There are multiple variants of parquet, and they are not always compatible. I have to be careful which features of parquet I use when writing from spark (which uses a Java implementation of parquet), because I have a colleague who uses matlab (which uses parquetcpp).