polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- rust-analyzer not resolving `col` and other `Expr`
- Expose the logical plan AST or some method that would allow you to programatically inspect the computation graph
- LazyFrame.explain should have the same (verbose) output in python as it has in rust
- Confusing behaviour with `.over`
- `cut` / `qcut`: `left_closed` bug and inconsistencies
- list.take by another column on dataframe with no rows casts to list[null]
- Performance hit on Hybrid CPU architectures?
- Create missing combinations of variables (like `tidyr::complete()` in R)
- Add support for Apache ORC format
- Memory allocation fails for flattening lists in streaming lazy pipeline
- Docs
- Rust not yet supported