polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- perf: Chunk-aware morsel splitting on single-file IO sink
- Collecting a lazy query with `engine="streaming"` fails when using an `update` and semi join
- fix: Correct Arrow FFI export of sliced struct arrays with nulls
- CSE sporadically ignores IEJoin
- Soundness: unchecked integer overflow in polars-arrow allows UB in safe Rust code
- Incompatible types in latest polars-plan and polars-core crate
- fix(rust): Fix soundness violations in `polars-arrow` integer overflow checks
- Arrow Pycapsule __arrow_array__ conversion priority over __arrow_c_stream__
- `ValueError` when using `rows_by_key` on all the columns of a dataframe
- Add `how="horizontal_extend"` to `pl.concat`, and deprecate `strict` parameter
- Docs
- Rust not yet supported