polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- `read_ipc()` fails on an empty table written in v1 format
- Set operations for list[struct]
- Use sortedness/statistics in comparisons
- `x in series` is slow
- Implement `str` namespace functions on categoricals
- 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
- Docs
- Rust not yet supported