polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- LazyFrame: ColumnNotFoundError when .with_columns() reassigns an existing column and adds a new expression before .group_by().agg()
- feat!: Disallow var/std on during plan resolution
- refactor: Remove `POLARS_AUTO_STREAMING` in favor of using `POLARS_FORCE_STREAMING`
- Remove existing files when overwriting partitioned Parquet
- Make join_where non-experimental
- slow optimization speed for long with_columns chains
- perf: Short-circuit any/all/has_nulls streaming reductions (#27586)
- Maturin build error: unknown refstorage format
- Fail to compile without the `parquet` feature
- Make `read_avro` unstable
- Docs
- Rust not yet supported