polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Rounding error for `round_sig_figs` on `Float64`
- `pl.cum_sum_horizontal(...).struct.unnest()` errors with `StructFieldNotFoundError: literal`
- Future direction for Decimal, embracing fixed point?
- enh: add `closed` argument to `business_day_count`
- `.join()` fails with `streaming=True` if table has a struct column
- SQL ORDER BY Fails on list[f64]
- Creating a DataFrame from Pydantic models fails if there is missing data/Nones
- deadlock when reading parquet one disk
- Decimal division fails
- `fill_null(pl.lit([]))` on data with enforced schema but no entries makes `to_arrow()` panic
- Docs
- Rust not yet supported