polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Trying to create array of dates fails - SQL interface
- Empty dataframe with "cross-row" operation contaminates sum and product
- Some functions do not accept arbitrary expressions. Should it be part of an API?
- Polars `dot` is significantly slower than `cov`
- Expr.str.replace does not work on Categorical anymore
- Error shrink_dtype() used into rolling() or group_by() functions
- scan_csv does not work with IO[bytes]
- Getting different result after same operations on dataframe and column
- pl.DataFrame(...).write_csv(StringIO()) broken
- Support additional join types with join_where
- Docs
- Rust not yet supported