polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Incorrect results for `over(nulls_last=True)` on multiple `order_by`
- Polars does not close SQLAlchemy connection after `pl.read_database(iter_batches=True)`
- feat: Add `descending` and `nulls_last` options to `merge_sorted` for both in memory and streaming engine
- `register_dataframe_namespace` should provide a typing hook for type checkers
- Add example to write_iceberg
- Consider replacing polars delta scanner with `polars-deltalake` plugin
- Feature Request: First-class Iceberg REST catalog attachment
- Add `rolling_argmax` and `rolling_argmin` expressions
- Document preservation of empty CSV lines
- Expose parquet `FileMetadata` from python `Scan` node for parquet scans
- Docs
- Rust not yet supported