polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- `StructArray::new` panics instead of returning `Err`
- feat!: Preserve height when DataFrame/LazyFrame.drop() removes all columns
- parquet scan/reads fail over HTTP for small files hosted with miniserve
- Undo blanket ignore for deprecation warnings in Python doctests
- Flag that disables pre-filtered parquet decode is unnecessarily strict
- feat: Improve plan-time row estimates for multi-file parquet scans
- feat(python!): Remove `allow_missing_columns` from `scan_parquet`
- fix(rust): Drop non-output columns from streaming equi and semi/anti joins
- feat!: Respect file column order when schema is given for `scan_csv()`
- docs(python): Note the NaN ordering footgun for median / quantile
- Docs
- Rust not yet supported