polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- `infer_schema_length=None` not working as expected in multiple files reading
- Add `Expr.unique_id`
- Add `pl.col().null_if(<condition: pl.Expr) -> pl.Expr` function
- Type Hint for `pl.Series` is `Sequence` but could be better as `Iterable`
- ci: Run Narwhals test suite
- Add new engine to write_excel
- RAM overconsumption on reading thousands of files
- dtype-i128 feature flag now unecessarily required to be enabled even for operations involving small numbers
- RFC: Generalize casts allowed in `match_to_schema`
- feat: Added `remove_by_index` to `list` namespace
- Docs
- Rust not yet supported