polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Pytest xdist bulk tests ignore POLARS_MAX_THREADS environment variable
- `Expr` has `{top, bottom}_k_by` but Series does not
- Unexpected error on `unnest` of horizontal expression for LazyFrame
- `Expr.diff` should accept a scalar `IntoExpr` for the second argument
- Panic when calling `corr` with unequal length inputs
- Unexpected type casting when using OR operator `|` between columns - OR is not commutative
- Chaining `.list.eval`, `.value_counts` and `.struct.unnest` causes nondeterministic output
- feat: Allow setting default time unit in config
- `Expr.rolling_*_by` exist but these method are not on `Series`
- fix: Rewrite unroll of overlapping groups to mitigate out of range index panic
- Docs
- Rust not yet supported