polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Polars dropping empty columns in `read_xlsx`
- refactor(rust): Use defunctionalization in polars-core scalar.rs in order to reduce code duplication
- Allow using `.map_elements(fn_which_returns_a_2_tuple, return_dtype=pl.Struct(...))`
- `concat` + `sink_parquet` creates corrupt file instead of raising `ShapeError`
- `polars.scan_delta(..).filter(..).collect()` fails for some datasets
- Panic when requesting row encoding after clearing string cache
- Decimal operations on Series are inconsistent with those in the expression API
- Pyarrow lazyframes not collected properly in latest version
- join_asof with strategy="nearest" joins large negative values incorrectly when -inf is present.
- Support glob paths in read_excel
- Docs
- Rust not yet supported