Use DuckDB to convert parquet to JSON

[stefanzweig]

https://github.com/simonw/til/blob/e203f8d24f741da27516179cb0e19e1d8f2aa8b3/duckdb/parquet-to-json.md

here

% head -n 3 train.json 

I wonder why my head result is only the lines without the objects format? My duckdb is the windows v0.6.1 919cad22e8

Any suggestion? Thank you!