polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- pl.len() high memory usage
- C FFI bindings
- Add `saturate_numerical` to `pl.Expr.cast`
- 【Rust】Broken Source Code Link for the is_in Method in Documentation
- Inconsistent behavior when adding a column to an empty dataframe
- cannot assign datetime value
- Aggregations on all-null sequences: option for null-output
- Sorting Guaranteed for `LazyFrame.top_k`
- sink_parquet and write_parquet differ in compression handling
- Difference in line end detecting between polars and pandas in rigged CSV
- Docs
- Rust not yet supported