polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Align min and max of nulls with Python's native min and max
- option to load as 'long' df instead of 'wide' df
- group_by_dynamic function does not work in 0.48.1
- feat: Add `index_of_first_not_null` and `index_of_last_not_null` Expr and Series methods
- C Data interface error: The datatype "Null" doesn't expect buffer at index 0
- `read_csv` Column names containing double quotes (") are not handled correctly during parsing.
- Unity catalog - no storage_location found when scanning tables on Azure Databricks
- Polars SQL does not work on ThreadedMotoServer
- [BUG] Type inference issue: Expr::shift output incompatible with when/then/otherwise (leads to Int128 error)
- Change file extension from `.ipc` to `.arrow` for `sink_ipc(pl.PartitionBy(..))`
- Docs
- Rust not yet supported