polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- `DataFrame.remove()` with multiple arguments could be misleading.
- Additional join validation options
- polars-plan as an internal dep is broken
- Include source file line numbers when reading CSVs with `read_csv`, `scan_csv`
- Extend `merge_sorted` to support multiple keys
- Replace strict does not work with a Series that contains lists
- Don't buffer in multiplexer if lhs writes and rhs can directly execute.
- feat(rust): Allow for multiple `descending` and `nulls_last` for `order_by` in `over`
- Remove `retries` argument from scan and read functions
- Remove `no_optimizations` argument from `LazyFrame.map_batches`
- Docs
- Rust not yet supported