polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Left join after is_in is faster than normal left join
- Add padding method to List datatype
- Add a trimmed mean
- Unique value count in df.describe()
- False positive of PolarsInefficientApplyWarning on apply(str)
- Rust example for parquet is not running
- object dtype not supported in Series.iter
- Polars blocks when running async functions in Dash
- More readable LazyFrame errors
- Support debugger breakpoints in pl.map and pl.apply functions
- Docs
- Rust not yet supported