polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- read_json errors when parsing NaN
- `LazyFrame.filter` fails to parse non-`Sequence` iterables
- `InvalidOperationError` when using fill_null after `.list.sum()` on bool list
- ColumnNotFoundError when doing group by on a column projection (function on column)
- Panic when using `Series.clear` on nested Object types
- parquet file created by .sink_parquet got Invalid thrift: protocol error
- docs: Overview of available SQL functions
- Stack Overflow (?) crash when using `all_horizontal`
- Allow for right-open cumulative operations
- Filters not being pushed down to pyarrow dataset
- Docs
- Rust not yet supported