polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Intermittent failure of AWS test
- Align `cut` and `hist` parameters and struct fields
- Optimize memory usage when sorting
- FrameType raises type error after join
- Make collect_schema_async()
- read_json unable to parse json list of lists, and doesn't respect documented schema arguments
- docs specify outer join will change default coalesce behaviour, but in python I get additional warnings for left join changing behavior
- Improve error messaging when wrong using a wrong schema/dtype
- Add conversion to binary
- docs(python): Add description and example of what happens when ignore_nulls=True on pl.concat_str
- Docs
- Rust not yet supported