With John Hall we wrote a blog post about moving a table from postgres to a parquet file using duckdb.
There are a lot of conversations — understandably — on the use of Apache Parquet, Apache Arrow and DuckDB. […] Let’s see an example of how they can be used to convert a table in a PostgresSQL database to a parquet file:
You can find the post on CORI’s Map and data analytics team blog.