polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Pivot with multiple columns, null column value causes column named 'null' and can cause duplicated columns
- `write_json` isn't "pretty" even with "pretty=True"
- Add lance as a supported data format to read/write
- Add derive Partial/Eq to PolarsError
- list.get does not work with a null index if the LazyFrame has only a single row
- Creation of empty lists by implosion carries hidden state that alters subsequent behavior
- Confusion with the docs, incompatibility between Rust and Python names,
- `read_json` should be independent of json attribute order
- Support reading from cloud storage in pl.read_excel() via fsspec
- A Type for Fixed-Length Byte Arrays
- Docs
- Rust not yet supported