polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- `.quantile(0.5)` causes incorrect results while using the GPU engine
- `pl.lit()` causes incorrect results while using the GPU engine
- Casting negative number into `Uint8` brings inconsistency between CPU and GPU engine
- `pl.Series` comparison seems too permissive when dtype is `String`
- `pl.col(<column>).is_in(<column>)` brings inconsistency between CPU and GPU engine
- `fill_null` with `pl.Array` dtype doesn't work.
- fix(rust): Hash AnyValue content instead of discriminant in `any_value.rs`
- fix(python): Apply thousands_separator to count/null_count in describe() for non-numeric columns
- `.dt.strftime("%A") brings inconsistency between CPU and GPU engine
- A `ValueError` (`CUDF failure at: invalid format specifier: #`) will occur when using `.str.strptime()` with the `invalid` column and the GPU engine
- Docs
- Rust not yet supported