polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Add support for arrow:json type in scan_parquet
- RFC: Allow to obtain file metadata from `sink_parquet`
- RFC: Allow to provide file size hints to `scan_parquet`
- Mixed nested dict breaks on schema_overrides with datetimes
- Inconsistent floating-point sum results based on row order
- Add `finish_callback` to `PartitionBy`
- Expression filter pushdown
- Optimize min/max exprs to first/last_non_null on sorted input
- feat: Allow providing file size hints to parquet reader
- fix(python): Handle bare Decimal dtype in row-oriented DataFrame construction
- Docs
- Rust not yet supported