# DataFusion Command-line Interface [DataFusion](https://datafusion.apache.org/) is an extensible query execution framework, written in Rust, that uses Apache Arrow as its in-memory format. DataFusion CLI (`datafusion-cli`) is a small command line utility that runs SQL queries using the DataFusion engine. # Frequently Asked Questions ## Where can I find more information? See the [`datafusion-cli` documentation](https://datafusion.apache.org/user-guide/cli/index.html) for further information. ## How do I make my IDE work with `datafusion-cli`? "open" the `datafusion/datafusion-cli` project as its own top level project in my IDE (rather than opening `datafusion`) The reason `datafusion-cli` is not part of the main workspace in [`datafusion Cargo.toml`] file is that `datafusion-cli` is a binary and has a checked in `Cargo.lock` file to ensure reproducible builds. However, the `datafusion` and sub crates are intended for use as libraries and thus do not have a `Cargo.lock` file checked in. [`datafusion cargo.toml`]: https://github.com/apache/datafusion/blob/main/Cargo.toml