polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Handling of large integer literals is wrong when combining integers of different types/dynamic integers
- Error when writing Parquet from scan_csv with encoded files (iso-8859-1 to utf-8)
- Add an error handling mechanism for collect_all
- Integer overflow fencepost errors calculating rolling windows
- When should join_where be considered stable?
- Add a "nearest non-null" interpolation method for polars.Expr.interpolate
- Median doesn't have same precision as min/max in datetime
- read_csv ignores try_parse_dates when pass a wildcast path to it.
- read_csv with s3 glob pattern fails with `TypeError: Object does not have a .read() method.`
- `read_ipc_stream` - Read Multiple DataFrames from File, `use_pyarrow=True` Works, but Default `False` Raises Error
- Docs
- Rust not yet supported