polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Full slice pushdown for io plugins
- `DataFrame(orient='row')` returns 0 rows if first item is empty
- Markdown table output does not have padding on header delimiter row
- pl.element().replace_strict(...) consumes too much memory
- Explicit UDF return types are broken when used with a Binary column
- read_json() doesn't support capturing arbitrary values (objects, arrays) as strings (read_ndjson() works fine)
- feat: Include `region` from `CredentialProviderAWS` in storage update options
- Add `remove()` for Expr
- polars.Config() has unexpected global effects on instantiation & context manager exit
- feat(python): Add truncate mode support for database writes in PyPolars
- Docs
- Rust not yet supported