polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Add rtol and atol arguments to DataFrame.frame_equal
- [DOC] n_unique considers null values
- benchmark(python): Shift polars TPC-H benchmarks to main repo and include in CI
- Add support for adding partitions as columns for parquet (and CSV files)
- Allow streaming when scanning a PyArrow dataset - scan from cloud data lake
- Cannot write to Azure Postgre SQL DB
- Support reading partitioned parquet datasets using `_metadata` files
- Allow for custom optimization rules
- DataFrame.sample() with larger n than height
- CSV with encoding=iso-8859-1 fails
- Docs
- Rust not yet supported