polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- suggest add some sql syntax supports
- feat: Support include_file_paths in read_csv
- Print names and dtypes of hidden columns.
- map_elements doesn't retain the datetime's timezone
- Add add_filename to pl.read_csv (and read operations others)
- Make round-tripping dates and datetimes consistent between CSV, JSON and NDJSON files
- Incorporate pyarrow-stubs
- Use Parquet Statistics such as `min` and `max` to handle more complex predicates.
- scan_parquet is slow to scan over parquet dataset with many rows
- dtype mismatch when converting Struct column to DataFrame from dictionary
- Docs
- Rust not yet supported