polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Quotation mark in middle of cell causes issues in `read_csv`
- Allow raising on mixed timezones instead of silently coercing in `from_pandas`
- EASY feature for hstack: "first" or "last"
- There is no way to call ufunc with 3 expr + 1 constant
- Error Message Improvement: Combine/Collect multiple Errors
- Allow for non-temporal columns in `by` for `rolling_mean`
- Redesign `cut` and `qcut`
- Allow creating a dataframe with integer categorical values
- read_excel - skip_rows starts counting from first populated cell, not the top of the file
- Read multiple files via glob pattern for `readJSON`
- Docs
- Rust not yet supported