polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- allow for `read_excel` `schema_overrides` to use column *numbers* or positions
- Streaming `is_in` is significantly slow and not parallelized
- Fixed width binary file reader and writer.
- Function to promote row as header
- Proposal for `to_dummies` on `LazyFrames` by adding optional `categories` param
- feat: Add `categories` to `to_dummies`
- RFC: Lazy assertion expressions
- Streaming engine `select` does not raise if lengths don't match
- Add `DataFrame.first()` and `DataFrame.last()`
- `autofit=True` in `write_excel` does not take into account column format
- Docs
- Rust not yet supported