polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Intel Xeon 6515P - RuntimeWarning: Missing required CPU features
- Contains_any cannot run on multiple columns
- Expr.meta.serialize(format='json') does not distinguish float('nan') from float('inf')
- pinning chrono in v0.53 breaks dependency chain
- fix(python): Fix `DataFrame.write_database(..., if_table_exists="append", engine="adbc")` not handling missing tables correctly
- hstack to expand with nulls as concat does
- Inconsistency: `write_database(if_table_exists="append")` auto-creates table with `engine="sqlalchemy"` but fails with `engine="adbc"`
- Add streaming sink support for Hugging Face Storage Buckets
- `scan_parquet` with a query ending with `collect()` triggers an async panic
- Native support for UInt128 literals
- Docs
- Rust not yet supported