polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- docs: Mention `make` and `cmake` for Windows
- Copy logic-plan from one LazyFrame to another LazyFrame?
- Support converting to NumPy masked arrays
- scan_pyarrow_dataset not filtering on partitions
- Filters not being pushed down to pyarrow dataset
- Quadratic scaling in expression depth when collecting expressions
- Add support for HDFS to `scan_parquet`
- `pl.Datetime` `time_zone` parameter has no type or value check
- group_by_dynamic with offset computes wrong window starts when a DST time change happens just before the 1st window
- `selectors` should support slicing columns
- Docs
- Rust not yet supported