polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Literal type is not inferred in constructor
- Implement alternate version of `median` that preserves data type
- If I pass weights to rolling_var, the actual ddof will be 0 no matter what ddof I passed
- Inconsistent behavior of `with_columns` + `lit` on empty frames
- Support writing Parquet `distinct_count` statistics for all types
- Stream processing support (in the style of flink/risingwave/arroyo/etc.)
- Implement coverage mark tests for critical performance paths
- docs(python): Clarify explanation and examples for `.eq_missing`
- Implement rolling functions for dtypes Int16, Int8, Boolean
- Odd formatting when a search in the docs contains part of the word "Examples"
- Docs
- Rust not yet supported