polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Significant discrepancies in rolling moments calculation when dealing with long enough time-varying data
- Add `is_sorted` to `DataFrame`
- Series.__array_ufunc__ can't handle `UInt` output unless _all_ input have type `UInt`?
- Memory leak when reading CSV files in parallel using rayon
- Tracking Issue for dealing with Unknown datatype
- cell based data types with read_excel
- `pl.Expr.meta.has_multiple_outputs()` is broken on main
- Provide some sort of callback for `LazyFrame` to handle errors when collecting?
- Decimal zeroes are stripped when reading float values as string in read_json
- `scan_delta` returns incorrect datetime unit (us instead of ns) compared to the specified schema
- Docs
- Rust not yet supported