polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Support hf://buckets/... URIs for reads (scan_* / read_*)
- fix(rust): Validate input dtypes in collect_schema for unsupported operations
- Store sorted state at the DataFrame level to allow multiple sort columns
- Add optimization rules around `len()` and `null_count()` comparing to 0
- Add short-circuiting behavior to streaming engine reductions
- fix(python,rust): Reject non-numeric inputs to hist() with a clear error
- fix(python): Preserve numeric format for `write_excel` count totals on temporal columns
- Add Rust backend for Expr.has_nulls()
- collect_schema() returns types inconsistent with collect()
- Missing index_column from rolling in expression.meta.root_names since polars==1.36.0
- Docs
- Rust not yet supported