polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- feat: Allow `group_by()` without key exprs
- chore(python): DataFrame constructor types: pl.DataFrame & Mapping[str, Null]
- chore(python): Add None & Dataframe to FrameInitTypes
- Severe drop in compression ratio when writing columns of long JSON blobs to Parquet since 1.37.0
- Improve NDArray1D, add NDArray2D
- NotImplementedError when using scan_iceberg with `is_in([])` filter
- pl.from_epoch overflows on UInt32 input since 1.39.0
- fix(rust): Optimized `process_where` for push filters in sql
- fix(python): Address a potential 32bit overflow in `from_epoch` scaling
- fix: Skip extension types for min/max in describe
- Docs
- Rust not yet supported