polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Fix inconsistent `AggregationContext` representation
- demo - force group positions to match `AggState`
- `concat_list` raises `ShapeError` when trying to concatenate `lit` with empty column
- Let `join_asof` check for sortedness when `by` groups are supplied
- Remove `Expr.flatten`
- Large memory usage when scan-collect a parquet with too many partitioning
- Support `CRC64NVME` checksum for S3 storage_options
- Remove total_bytes_len from MutableBinaryViewArray and re-enable test
- Move scalar array representation to a lower-level
- Python's Type-hinting for the future of Polars - "Bad first issue", but I'd love anyway
- Docs
- Rust not yet supported