sqlite2parquet

sqlite2parquet lets you generate parquet files from a sqlite database. It's available as a library and as a CLI application; they're feature-equivalent, so use whichever is most convenient. See here for some notes on archiving sqlite databases as parquet files. The code is in the public domain.

The CLI application

Install it like this:

$ cargo install sqlite2parquet

The library

If you use the library directly, you'll probably want to remove the CLI-related dependencies, so set default-features = false in your Cargo.toml.