polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- perf: Factor shared conjuncts out of OR-of-ANDs predicates
- Support hf://buckets/... URIs for reads (scan_* / read_*)
- feat(rust): Expose `IRFunctionExpr::DynamicPred` in the python visitor
- chore(python): Split `_expand_selector_dicts` into multiple functions so return type is simple and accurate
- Chained streaming AsOf joins break sortedness
- 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
- test: add regression test for integer bins with strict_cast
- Docs
- Rust not yet supported