polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Support named placeholders in `pl.format()`
- `pl.from_dicts` does not raise an error for data not adhering to a schema when strict is True
- Add `header_column` parameter to `df.transpose()`
- Have convert_dtypes() function for dataframes
- Consistency between read_csv and read_excel for duplicated column names
- Allow timedelta of more than 24 hours in group_by_dynamic every parameter
- bug: corrupted parquet output with Categorical
- Significant discrepancies in rolling moments calculation when dealing with long enough time-varying data
- Add `is_sorted` to `DataFrame`
- Series.__array_ufunc__ can't handle `UInt` output unless _all_ input have type `UInt`?
- Docs
- Rust not yet supported