polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Series.quantile returns None with datetime type data
- Infer schema setting dtype to I64 although it exceeded max integer
- Add "row context" (`pl.row`) for horizontal operations (`horizontal` namespace?)
- Rounding for a duration data type
- Add files read/skipped to LazyFrame.profile and file path to verbose output
- Improve horizontal null detection (`df.drop_nulls`, `all_null`_, `any_null`?)
- Add `lsuffix` and `rsuffix` params to `DataFrame.join`
- Polars for vector search (via Lance integration) ?
- 3+D Arrays (nested structs)
- Problem of using `Expr` in ipython
- Docs
- Rust not yet supported