The goal of fastreg is to take the mess of DST SAS files and convert them into something more modern, faster, and easier to work with. And also to prepare the data for our own work.
Want to review the documentation? See the PDF file in the docs/ folder
by opening the docs/manual.pdf file to check out the documentation.
There are sections on “Saving as Parquet” for the code used to save the
data and for reasons on why we’re using this format as well as
“Importing Parquet” for examples on how to work with this format and how
to use a language (DuckDB SQL) to do your work faster.