polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Polars scan_parquet_files blocking tokio async main thread
- weights not yet supported on array with null values
- Inconsistent Pivot Options Between Pivot API reference and Pivot User Guide
- `pl.lit(1)` is type `Int32` but `pl.lit([1])` is type `Int64`
- Assigning to a slice of df.columns fails silently
- Add polars parquet dataset abstraction
- `read_csv` does not return columns in the order specified by `columns` parameter
- Rust Polars DF into tuples
- Improve `read_database` error message after type inference error with sqlalchemy
- Add pyarrow.compute's `index_in` support for pl.Series
- Docs
- Rust not yet supported