polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Combination of `when-then` statement with `over` and `mapping_strategy="join"` runs forever
- Compile error when using code coverage tools
- OOM for lazy sorting data (lazy, streaming, sort)
- Add `weekday` argument to `Expr.dt.replace`
- UnicodeDecodeError: 'charmap' codec can't decode byte 0x98 in position 920533617: character maps to <undefined>
- Casting lazy frame columns cause type mismatch when collecting/writing
- feat: Add mermaid output to `show_graph`
- scan_parquet with allow_missing_columns does not include the missing columns
- Search for an item in a list (or array), part 2
- DuckDB Enum dtype is not preserved
- Docs
- Rust not yet supported