polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Can't pickle dataframe with nested dataframes
- Intra-doc links in the Python API documentation
- Reading with multiple row groups is MUCH faster than reading the same file with one row group
- Unexpected Behavior of Diagonal Concatenation on Struct Fields
- GCP Workload Identity Federation not working with polars
- `categorical` documentation, especially for `DataType::Enum`, inaccessible
- Allow to drop `None` values in `rows_by_key`
- Unclear error messages when using unsupported types in DataFrame and Series operators
- DataFrame and Series addition coerces non-String columns to String
- need ways to compute expression on a subset of rows
- Docs
- Rust not yet supported