polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- fix: Pass every input of an anonymous aggregation to its streaming reduction
- fix: Support several inputs to anonymous aggregations in the in-memory engine
- Support subquery outer aliasing for JOIN ... IN statements
- `read_csv` ignores file source column in `schema_overrides`
- fix: Correct schema for integer literal divided by `Float16`/`Float32`
- feat: Support correlated IN and EXISTS that read both inputs of a SQL join in ON
- fix: Refine `register_catalog` for `IF EXISTS`, re-registration and scopes
- fix: Restore Arrow reads in `read_database` for newer database drivers
- Strict construction of `List(Float64)` fails on whole numbers
- Support subquery outer aliases in JOINs with a LIMIT statement
- Docs
- Rust not yet supported