polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- LazyFrame check for both `unique` and `with_row_index`
- [QST/DOC]: Join key matching semantics for expression keys
- Incorrect `PolarsInefficientMapWarning` for string containment with `in`
- String to datetime conversion with custom format
- pl.scan_pyarrow_dataset drops timezone information
- feat(python): Allow vertical aggregation functions to accept `Expr`
- Projection pushdown not working for AnonymousScan when filtering on calculated column
- Literal type is not inferred in constructor
- Implement alternate version of `median` that preserves data type
- If I pass weights to rolling_var, the actual ddof will be 0 no matter what ddof I passed
- Docs
- Rust not yet supported