polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- fix: Upsample to return group values in group_by
- `read_parquet` and `scan_parquet` with multiple files and `missing_columns="insert"` fails depending on file order
- `pl.field` changed wildcard behavior between versions 1.31.0 and 1.32.0
- fix(python): Type of register_io_source supports pyarrow Schema
- Inconsistent default behavior for rolling between Python and Rust APIs
- Panic when writing dataframe with nested structs to delta
- `list.head(-n)` / `arr.head(-n)` return incorrect result
- feat(python): Allow `CredentialProviderAWS` auto-init with `request_payer` in storage_options
- `to_arrow()` PanicException on specific colum names
- Remove lazy stuff from `from_epoch` docstring
- Docs
- Rust not yet supported