Release Python Polars 1.14.0 · pola-rs/polars

🚀 Performance improvements

Increase default async thread count for low core count systems (#19829)
Move row group decode off async thread for local streaming parquet scan (#19828)
Support use of Duration in to_string, ergonomic/perf improvement, tz-aware Datetime bugfix (#19697)

Raise informative error on Unknown unnest (#19830)
Support DataFrame init from raw SQLAlchemy rows (#19820)
Support use of Duration in to_string, ergonomic/perf improvement, tz-aware Datetime bugfix (#19697)
Add an is_literal method to expression meta namespace (#19773)
A different approach to warning users of fork() issues with Polars (#19197)

Fix read_database(…,iter_batches=True) type annotations (#19832)
Validate subnodes in validate IR (#19831)
Raise if merge non-global categoricals in unpivot (#19826)
Type hints for window_size incorrectly included timedelta in some rolling functions (#19827)
Don't panic if column not found (#19824)
Fix gather of Scalar null + idx w/ validity (#19823)
Replace _kwargs in collect method (#19618)
Fix object chunked gather (#19811)
Fix filter scalar nulls (#19786)
Replace spaces with   to support showing multiple spaces in HTML repr (#19783)
Altair tooltip was being incorrectly applied to plots which did not accept it (#19789)
Respect schema_overrides in batched csv reader (#19755)
Fix scanning google cloud with service account credentials file (#19782)
Release the GIL in Python APIs, part 2 of 2 (#19762)
Fix incorrect filter after right-join on LazyFrame (#19775)
Fix incorrect lazy schema for explode on array columns (#19776)
Fixed typo in file lazy.py (#19769)