polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- `ComputeError` when reading a CSV with [square brackets] in file path
- pl.concat_list(pl.col("struct_of_structs")) out of memory and crashes
- Creating a DataFrame from Pydantic models fails if there is missing data/Nones
- `fill_null(pl.lit([]))` on data with enforced schema but no entries makes `to_arrow()` panic
- Columns names with a dot (`.`) do not plot correctly with the new Altair plotting backend
- Repeated sampling for Bootstraping
- Implement ewm_std_by, ewm_var_by
- `pl.read_ipc` is up to 10x slower when not using pyarrow
- Feature request: Add `collect()` to `DataFrame`
- Improve error message when trying to pass numbers (int, float) as schema column names
- Docs
- Rust not yet supported