pola-rs/polars py-1.33.1 on GitHub

🚀 Performance improvements

Use specialized decoding for all predicates for Parquet dictionary encoding (#24403)
Allocate only for read items when reading Parquet with predicate (#24401)
Don't aggregate groups for strict cast if original len (#24381)
Allocate only for read items when reading Parquet with predicate (#24324)

Correct sink_ipc overload for compression (#24398)
Enable all integer dtypes for by parameter in join_asof (#24384)
Fix Group-By + filter aggregation performs subsequent operations on all data instead of only filtered data (#24373)
Wrap deprecated top-level imports in TYPE_CHECKING (#24340)
Fix incorrect output ordering for row-separable exprs (#24354)
Fix Series.__arrow_c_stream__ for Decimal and other logical types (#24120)
Match output type to engine for Struct arithmetic (#23805)
Make mmap use MAP_PRIVATE rather than MAP_SHARED (#24343)
Fix cloud iceberg scan DATASET_PROVIDER_VTABLE error (#24338)
Don't throw away type information for NumPy numeric values when using lit() (#24229)
Incorrect logic in negative streaming slice (#24326)
Ensure read_database_uri with ADBC works as expected with DuckDB URIs (#24097)
Do not error on non-list Sequence for columns parameter in read_excel (#23967)

Document newly added is_pure parameter for register_io_source (#24311)
Create a module docstring for the public polars module (#24332)
Update to Polars Cloud user guide (#24187)
Update distributed page (#24323)
Add a note and example about exporting unformatted Excel sheet data (#24145)
Add detail about server-side cursor behaviour for SQLAlchemy in the "iter_batches" parameter of read_database (#24094)
Add Polars security policy (#24314)