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: replace_strict dict order affecting inferred dtype
- replace_strict infers replacement value dtype from dictionary insertion order
- fix(rust): Don't panic in `rolling_*_by` when `by` contains nulls
- Schema mismatch on diagonal concat and reverse with List
- Support comparison of list/struct/array columns
- Opt-in short-circuit evaluation for when/then/otherwise
- Supertype casting in type-coercion pass
- Sorted flag not preserved by PyDataFrame
- `StructArray::new` panics instead of returning `Err`
- parquet scan/reads fail over HTTP for small files hosted with miniserve
- Docs
- Rust not yet supported