polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- DataFrame.group_by.GroupBy.head(n: int) should support negative ints
- .transpose() to object dtype
- feat(python): Added List dtype support with all subtypes for `from_repr` functionality
- Getting `ComputeError: buffer's length is too small in mmap` when concatenating 100s of parquet files
- Quadratic scaling in expression depth when collecting expressions
- Add Append Functionality for Streaming Data in LazyFrames
- aggregate function that operates on vector(array of numeric) data
- pl.sum_horizontal handles nulls differently from .add()
- sink_parquet should delete incomplete file if operation fails
- Issue in interchange protocol for chunked validity buffer
- Docs
- Rust not yet supported