polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Rework `Config` class/options
- Keep order of categories/strings when converting to dummies
- Unable to melt categorical-type columns with other types
- cannot do arithmetic with series of dtype: Boolean and argument of type: int
- Serializable expressions with Pydantic
- Add streaming support for `group_by` string-aggregation
- Make scan_parquet (and other scan_* methods) report better errors.
- Equivalent to `json_normalize()` from Pandas
- add strict option to replace_time_zone
- Support of vertical fold and scan
- Docs
- Rust not yet supported