polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- `cum_sum_horizontal` no longer accepts a list of column names
- `pl.from_arrow()` significantly slower with chunked `Table`
- Improve join docs - explain difference between "inner" and "semi" join
- Example in "Getting Started" Page Lacks Hint to Activate Features
- Opaque error message when calling dt accessor methods on string column
- `schema_overrides` argument of `read_excel` requires column to be present in all sheets
- Race conditions in file cache
- Should support reading and writing partitioned Iceberg files
- Add a thousands parameter to read_csv / scan_csv
- write_database does not recognize redshift connector
- Docs
- Rust not yet supported