pola-rs/polars py-0.17.10

Python Polars 0.17.10

on GitHub

🏆 Highlights

• Out-of-core unique (#8573)

🚀 Performance improvements

• improve OOC sort performance during partition phase (#8590)
• significant speedup for python iteration over Series data (#8501)

✨ Enhancements

• make ooc-sort resilient against chunk_size (#8588)
• Out-of-core unique (#8573)
• Add to_date, to_datetime, to_time to String namespace (#8579)
• enhance parametric strategy retrieval, enable List strategy by default (#8571)
• Add default value for round (#8566)
• don't trigger unreachable code if no dtype is set (#8532)
• Ergonomic inputs for all, any, sum, and cumsum (#8541)
• accept expressions in groupby_dynamic/rolling (#8528)
• add is_nested property to dtypes (#8514)

🐞 Bug fixes

• fix determining of supertype for tz-aware and tz-naive datetimes (#8585)
• correct for nested offsets in json serialization (#8584)
• fix wrong dtype init in streaming groupby (#8574)
• fix edge-case with NamedTuple input that contains unhashable field data (#8578)
• temporarily disable List dtype in parametric tests (#8581)
• fix categorical/string_cache fill_null panic (#8562)
• fix testing asserts for NaN values in Struct data (#8557)
• fix window function contention in binary expression (#8544)
• fix struct pyarrow ffi (#8543)
• don't trigger unreachable code if no dtype is set (#8532)
• fix testing asserts for NaN values in List data (#8537)
• keep sorted info on agg_first and simple singleton… (#8526)
• don't downcast Decimal to Float64 in truediv (#8523)
• unset fast_unique coming from arrow (#8521)
• correct sign-reversed scale on DecimalChunked to Python Decimal conversion (fixes #8423) (#8508)
• Clarify and fix behaviour in pl.min/max (#8509)

🛠️ Other improvements

• warn about changing date_range default from lazy=False to eager=False (#8593)
• Rename internals module to _reexport (#8554)
• change partition strategy (#8561)
• fix testing asserts for NaN values in Struct data (#8557)
• note sortedness of results from groupby ops (#8540)
• better type signature for set_sorted (#8529)
• add test for categorical input that is not fast_unique (#8527)
• Improvements to the Python release workflow (#8121)
• Update docs requirements (#8200)

Thank you to all our contributors for making this release possible!
@MarcoGorelli, @alexander-beedie, @cgevans, @ritchie46, @stinodego and @uchiiii