polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Allow dynamic EWM settings (window/min_periods)
- Specify which values are not found in replace_strict in exception message
- json_path_match is not handling not equal operator correctly
- `LazyFrame::cross_join` + `concat_list` error
- WASM build fails with "lazy" "streaming" features
- PanicException on exploded DF that contains list of list of numpy vectors.
- StructType ChunkedArray iterates as many times as there are unique entries unnecessarily
- `sink_parquet_cloud` does not report S3 errors
- Inconsistent behavior between slice() as an expression on a column and slice() on a Series/DataFrame
- Support reading, writing Parquet key-value metadata
- Docs
- Rust not yet supported