Blogs›ScyllaDB›cqlsh Rewrite in Rust
This post details the development of cqlsh-rs, a ground-up rewrite of the Python cqlsh in Rust. The primary motivations were to address the packaging nightmare associated with Python dependencies and to improve the reliability and performance of the COPY TO/FROM feature. The rewrite aims to provide a static binary with zero runtime dependencies, simplifying deployment and maintenance. It also focuses on resolving long-standing bugs and performance issues in the bulk data import/export functionality.
6/2/2026
Introduces cqlsh-rs, a new Rust implementation of the cqlsh interactive CQL shell. Addresses packaging issues of the Python version by creating a static binary with no runtime dependencies. Overhauls the COPY TO/FROM feature to improve reliability and performance, addressing existing bugs and complexity.