polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Memory use regression writing concatenated DataFrames to IPC format
- str.json_path_match returns null on invalid JSON instead of raising an error
- Casting from string to list of enums fails.
- Feature Request: `is_unique` flag for columns
- Improve assert_frame_equal dtype check
- .over() ignores the global random seed
- A `InvalidOperationError` ( `mean` operation not supported for dtype `str`) occurred while using streaming engines
- chore(python): Solve `type: ignore` in _AioDataFrameResult
- DataType.from_python fails for list[Optional[T]]
- chore(python): Bump pytest from 8.3.2 to 9.0.3 in /py-polars
- Docs
- Rust not yet supported