polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Polars parquet writer much slower than pyarrow parquet writer
- Function fold panics with struct with Boolean field
- Multiple identical sorts not elided by optimizer
- polars failed to import after install version newer than 0.20.16
- Support for uint256/int256
- Hive partition ranges
- Spurious test failure in `polars-lazy` tests
- Hive partitioning tracking issue
- fix(rust,python): Handle NamedTuples in any_value
- Proposal: Re-design `columns`, `new_columns`, `schema`, `dtypes` in `read_csv`
- Docs
- Rust not yet supported