polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Add a `casefold` method to the `expr.str` attribute
- Add option for n_unique() to ignore None values
- Elementwise check on `join` expressions is too restrictive
- Apply function to rows of dictionaries in `map_rows`
- Eager/Lazy API alignment: LazyGroupBy vs DynamicGroupBy
- pl.from_numpy produces a DataFrame with the wrong values if a schema is given
- fix(python): Raise for incompatible array casting in series construction
- fix(rust): Fix panic when trigger projection push down with anonymous scan
- Let arr.reshape use Expr as inputs instead of just python tuple
- Import and Export Schema Objects to JSON
- Docs
- Rust not yet supported