polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- ScanCastOptions for Long<>Datetime Conversion
- Separator for pivot columns when multiple values passed to 'on'
- Push filters beneath joins in SQL query plans (like LazyFrame API)
- Add option to overwrite/raise in write_/sink_parquet
- PartitionBy with custom file provider overwrites files if provided paths not unique
- marker
- Add *args, **kwargs to LazyFrame.pipe_with_schema
- feat(python): Support partitioned tables in sink_iceberg
- `DataFrame.to_numpy(order='c')` is slower than `np.ascontiguousarray`
- `pivot` panic regression with `fill_null` as an `aggregate_function=`
- Docs
- Rust not yet supported