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: Disallow rolling functions negative weights
- fix: Treat scalar columns as having no chunk layout
- refactor: Unify the three column-resolution helpers
- perf: when loading DataFrame from iterable, chunk_size can be determined more optimally
- feat: Keep distinct count after group-by/distrinct
- fix(python): Parameterize PyArrow conversion types with `Any`
- SQL: ORDER BY on an ungrouped QUANTILE_CONT or QUANTILE_DISC aggregate returns one row per input row instead of a single row.
- feat(python): Add `connection_options` parameter to `read_database_uri`
- fix: Prevent datetime overflow
- Add linear regression aggregation functions (regr_slope, regr_intercept, regr_r2, regr_count)
- Docs
- Rust not yet supported