polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Feature request: Support explicit dtype mapping and type promotion in `pl.scan_parquet` cast_options, and parity for `pl.read_parquet`
- Streaming implementation for grouped AsOf join
- Common subplan elimination is pessimized by filters
- Pivot totals
- `truncate` doesn't work with timedelta expr argument
- Converting a DataFrame/LazyFrame into BSON
- LazyFrame created with SQL cannot be serialized
- Issue running tests locally
- Add `polars-config` crate and use updatable atomics to store configuration
- Improve morsel backpressure in IO sources
- Docs
- Rust not yet supported