polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Add `LazyFrame.optimize` / `LazyFrame.resolve`
- perf: Add prefetching to OOC
- fix: Preserve scalar arrays in arr.dot dispatch
- feat(python): Add LazyFrame resolver API
- Compressed CSV support undocumented in `scan_csv`, understated in `read_csv`
- Centralize FixedSizeList outer-to-child layout conversion
- feat!: Introduce the `Map` dtype
- perf: Do not materialize equal `ScalarColumn`s in `Column::append`/`extend`
- fix(rust): Centralize FixedSizeList outer-to-child layout arithmetic and fix under-reservation
- Some tests fail on windows with an access violation
- Docs
- Rust not yet supported