polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Write a memory usage test for read_avro partial column reads
- Python Polars expression `shuffle` does not seem to respect `polars.set_random_seed`
- ColumnNotFoundError on concat of LazyFrames; works fine if collected first
- Obfuscate/censor AccessKey in lazy serialize by default (have parameter to leave in the clear).
- polars failed to import after install version newer than 0.20.16
- Support for uint256/int256
- Hive partition ranges
- Add pl.Expr.clear()
- Add filenames to parquet reading exceptions
- Writing Parquet to JSON when row_oriented=True
- Docs
- Rust not yet supported