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 `implode()` to recieve an expression resolving to the target element index in the series/list
- pivot_stable does not support different AggFunc and does not respect AggFunc Expr
- SEGFAULT on enormous `when/then/otherwise` expressions due to stackoverflow
- Cached over/groupby result
- A way to combine multiple expressions held in a python data structure into a single expression
- Rework `Config` class/options
- Keep order of categories/strings when converting to dummies
- Unable to melt categorical-type columns with other types
- cannot do arithmetic with series of dtype: Boolean and argument of type: int
- Serializable expressions with Pydantic
- Docs
- Rust not yet supported