polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Add new option in rows_by_key to return scalar values
- `scan_delta` from S3 returns 400 Bad Request when using Polars 1.14.0, works fine in 1.13.0.
- Allow `pl.Duration` in `write_csv`
- Add modular parquet de-/encryption
- Allow skipping non-matching schema in json_decode
- Should `pl.concat()` accept `Expr` input?
- DataFrame.write_parquet doesn't use RLE_DICTIONARY encoding for nested columns
- List/Array: `sum` operation not supported
- `ComputeError` when reading a CSV with [square brackets] in file path
- pl.concat_list(pl.col("struct_of_structs")) out of memory and crashes
- Docs
- Rust not yet supported