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qsv is a fast, command-line CSV data toolkit written in Rust that extends the capabilities of xsv. It’s designed to make working with CSV files at scale easy and efficient, offering over 40 powerful subcommands for tasks like querying, sampling, splitting, deduplicating, and more. qsv is ideal for data engineers, analysts, and developers who need high-performance CSV manipulation on the command line.
Features
- High-speed CSV processing using Rust and SIMD
- Supports SQL-like querying with embedded SQLite
- Over 40 commands including sort, join, stats, and dedup
- Smart sampling and schema inference tools
- Works with large datasets and gzipped files
- Optional integration with Python and Polars
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