polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- fix(python): Instantiate series from pandas ExtensionArray (#22757)
- Allow resampling along arbitrary schedules
- Add `df.write_iceberg(table, mode="upsert")` feature (or maybe `df.upsert_iceberg()`)
- Stipulate in typing that one of partition_by, order_by must be non-None
- Parsing Duration from String: str.strptime(), str.to_duration()
- Set engine affinity takes precedence over collect argument, and raises panic exception with pl.scan_pyarrow_dataset.
- New list function: `list.arg_where`
- Allow `hist` to work with `pl.Date` and `pl.Datetime`
- Option for word-level restriction when using `find_many`, `replace_many`, and `extract_many`
- docs(python): Add rolling chained expression example
- Docs
- Rust not yet supported