polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- pl.repeat does not respect leftmost-argument naming rule
- error[E0599]: no method named `raw_table_mut` found for struct `hashbrown::HashMap` in the current scope
- no skip_rows option for Excel files
- read_parquet() from gcs requires to use "use_pyarrow=True"
- `struct.rename_fields` should have a `strict` parameter that is enabled by default.
- `pl.concat(how='horizontal')` should be `strict` by default
- Series arithmetic silently permits Date<->Numeric operations
- ignore_errors behaviour in read_ndjson
- Avro reader/writer cannot roundtrip chunked structs
- `.str.concat` does not produce DeprecationWarning
- Docs
- Rust not yet supported