polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- feat: Allow `infer_schema_length=0` in `read_json` with explicit schema
- fix(python): Fix `scan_delta(DeltaTable)` with delta-rs string `storage_options`
- polars.read_csv fails after peek
- refactor(python): Use `LazyFrameResolver` API for `scan_delta`
- #28498 feeds fabricated nulls to user code, so a null-free query can fail
- Add `LazyFrame.optimize` / `LazyFrame.resolve`
- Centralize FixedSizeList outer-to-child layout conversion
- fix(rust): Centralize FixedSizeList outer-to-child layout arithmetic and fix under-reservation
- fix(python): Leave stream position at end of stream in `read_ipc_stream`
- Document versioned GPU-engine capability boundaries
- Docs
- Rust not yet supported