polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- ComputeError: could not append value when creating Polars DataFrame
- Allow remapping of hive partitioning columns (or physical parquet columns) before they're unified.
- add option for `to_dummies` to respect nulls
- `.mean_horizontal()` does not work with `pl.datetime` (but `.mean()` does)
- Native `delta` reader and writer using delta-kernel-rs
- Change `dt.week()` to be more consistent with `dt.year()` (Gregorian Year)
- Aliasing Columns Names in Map_Element () with Dataclass Fields
- Allow passing custom HTTP headers
- fix: Enforce a Series' capacity on map_elements
- Custom HTTP headers in pl.scan_parquet()
- Docs
- Rust not yet supported