pola-rs/polars py-0.17.13

Python Polars 0.17.13

on GitHub

🚀 Performance improvements

• add optimizer passes and change initial order (#8811)
• fused multiply sub / sub multiply (#8799)
• improve parallel work distribution of sort expression ~4x (#8775)
• change default row-group size (#8758)
• elide function calls in AnyValue::eq (#8725)

✨ Enhancements

• add a new time_range utility function (#8776)
• Add hint to use _saturating on overflow (#8805)
• add a "restore_defaults" kwarg to Config init (#8797)
• add lazy time expression (#8785)
• support boolean addition (#8778)
• support SQLContext registration of DataFrames (#8762)
• support automatic SQLContext frame/table registration from local variables (#8749)
• improved detail in several error messages (#8747)
• support frame registration at SQLContext init time, and add an "unregister" method (#8744)
• support repeat for all types (#8741)
• add support for DISTINCT keyword in SQL select clauses (#8740)
• support any day of the week in 'start_by' in groupby_dynamic (#8720)
• add support for USING clause in SQL join operations (#8731)
• add unit tests for extend_constant Expr (#8734)
• add clean multi-frame registration to SQLContext (#8724)
• add support for HAVING clause to SQL GROUP BY operations (#8704)
• improved numpy string interop (#8703)

🐞 Bug fixes

• sort cached window groups (#8813)
• check null data before take (#8812)
• fix broadcasting on integer bitwise (#8798)
• Fix incorrect type hint for arange (#8796)
• correct aggregation of overlapping groups (#8794)
• don't parallelize sort within rayon job (#8774)
• fix deadlock in cache and improve parallelism/work… (#8765)
• check offset before doing owned mutation (#8760)
• don't persist temporary column in disjoint calls to update (#8763)
• validate data on successful deserialization (#8757)
• improve supertype coercion of functions (#8755)
• groupby_dynamic was unnecessarily failing on ambiguous local datetime (#8737)
• ensure count aggregation has proper length when spilling (#8735)
• fix return value of std for single-element sequence with ddof=1 (#8730)
• don't take logical plan during streaming fmt (#8711)
• Don't upcast in round() for f32 when decimal is 0 (#8706)

🛠️ Other improvements

• add entry for lazy time func (#8786)
• add unit tests for extend_constant Expr (#8734)
• add rounding coverage for 32/64 bit floats (#8715)
• Add warning to count methods on null (#8698)

Thank you to all our contributors for making this release possible!
@DeflateAwning, @MarcoGorelli, @alexander-beedie, @mcrumiller, @ritchie46, @stinodego, @uchiiii, @universalmind303 and @zundertj