polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Coalesce equality expressions in `join_where()`?
- `scan_csv` with multiple files uses all-str schema if one file is empty
- dt.truncate doesnt work with expr argument on empty dataframe
- polars.exceptions.ColumnNotFoundError when using nested column in GROUP BY
- Add `(missing|extra)_columns` parameter to `DataFrame/LazyFrame` constructors
- `orient=` does not always raise for invalid values
- Unable to enable feature parquet in Cargo.toml
- Add by_function() to Column Selectors for flexible filtering by column name
- `replace` on a struct with 1 field replaces the inner value
- feat(python): Add utility to read and concatenate valid structured files from a path patternFix Enable reading an empty file
- Docs
- Rust not yet supported