polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Python's Type-hinting for the future of Polars - "Bad first issue", but I'd love anyway
- `ValueError` when calling `from_arrow` on iterable with empty `pyarrow.Table`
- docs: Doc inconsistency: Text claims an Exception will be raised, but the code example shows a Boolean Series
- bug: AVG OVER WINDOW returns incorrect values
- Panic for `list.agg` with mixed nulls and empty lists
- Categorical multi file parquet scan leads to OOM, low cardinality column seems to not skip row groups, unused categories after .collect()
- replace_strict shouldn't coerce numeric entries into strings
- schema_overrides overrides column order if dict length is the same as column length
- Streaming engine cannot be build for `pyodide`
- fix(python): Fix LazyFrame.__contains__ not issuing PerformanceWarning
- Docs
- Rust not yet supported