polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Generalization of limit pushdown into slice pushdown and into simple filter pushdown
- Allow defining the comparison operators of foreign types against `pl.Expr`
- `sink_iceberg(create_if_not_exists=True)` does not create a missing namespace; Polars has no Iceberg namespace API
- fix(python): Accept column names in list.gather type annotation
- fix(python): Treat zero-dimensional NumPy arrays as scalars
- Native `scan_iceberg` ignores `schema.name-mapping.default`: files without field IDs fail.
- Memory budget ignores the memory limit of a nested cgroup (e.g. SLURM, systemd)
- Windows: access violation in bundled mimalloc 3.3.2 (`_mi_subproc` null `tld`), fixed upstream in mimalloc 3.4.1
- docs(rust): Add Rust examples for list expressions user guide
- SQL: CREATE TABLE in an Iceberg catalog
- Docs
- Rust not yet supported