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 `expr.eval(pl.element())`
- fix(python): Support expressions in `DataFrame.unpivot`
- tracker: use faster type checker (pyrefly or ty) in CI
- perf: Streaming `strptime` with `format=None`
- fix(rust): Rebalance deep merge_sorted chains
- `sink_*` raises ColumnNotFoundError for `sort(pl.row_index())` + `head()`
- Add max_depth to LazyFrame.unnest
- feat: Add `max-depth` argument to `unnest`
- fix(python): Make @deprecated work regardless of decorator stacking order
- `DataFrame.unpivot` raises TypeError when given expressions
- Docs
- Rust not yet supported