polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- fix: Validate null placement in `is_sorted()` fast path
- bug: scan_table fails for Unity Catalog tables with encoded partition paths (double-encoding/404)
- `parquet` feature pulls in `reqwest`/`object_store`/`tokio` unexpectedly
- Inconsistent behaviour between Expr.str.json_decode and read_ndjson when reading floats as integers
- 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
- 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"`
- Docs
- Rust not yet supported