polars
https://github.com/pola-rs/polars
Rust
Dataframes powered by a multithreaded, vectorized query engine, written in Rust
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- Issues
- Enable Rolling aggregation by Duration
- Performance of pl.Series of Float vs List(Float) vs List(List(Float))
- [DOCS]: Clarify what rows are included in rolling calculations when `window_size` is "2d" or `timedlta(days=2)`
- BatchedParquetReader appears to read in the whole file still
- BatchedParquetReader erroneously returns true for is_finished after the first get_batches call
- polars 0.20.10 not compatible with connectorx on python 3.12
- concat failure between Datetime[UTC] column and Datetime column with only nulls
- Add `dtype.scalar` for each dtype, for use in filters/comparisons/literals
- Convert ordered pandas Categoricals and Arrow DictionaryArrays to and from Enums, not Categoricals
- "expected <datatype>, got <datatype>" - use datatype display repr consistently?
- Docs
- Rust not yet supported