polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Calling pl.DataFrame with orient='row' on np.ndarray returns object or null
- polars df.write_database with progress
- Add `weekday` argument to `Expr.dt.replace`
- Conversion between numpy datetime64[D] and pl.Series is broken for 2 or more dimensional arrays
- UnicodeDecodeError: 'charmap' codec can't decode byte 0x98 in position 920533617: character maps to <undefined>
- Casting lazy frame columns cause type mismatch when collecting/writing
- Sink operations fail with to_datetime(strict=False) since 1.17
- feat: Add mermaid output to `show_graph`
- scan_parquet with allow_missing_columns does not include the missing columns
- Add pub method to the BatchedParquetReader to read row group directly
- Docs
- Rust not yet supported