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Published June 16, 2023 | Version py-0.18.3
Software Open

pola-rs/polars: Python Polars 0.18.3

Authors/Creators

  • 1. Quansight
  • 2. @aertslab
  • 3. University of California, Berkeley
  • 4. @coralogix
  • 5. Munin Data ApS
  • 6. @twin-labs
  • 7. Universidad Carlos III(student)
  • 8. @QuantCo
  • 9. @Quantco
  • 10. The Rockefeller University
  • 11. Jupiter Intelligence
  • 12. @apache
  • 13. Pharmatronics (a one man consultancy)

Description

🚀 Performance improvements
  • use row format in streaming join ~15% (#9379)
  • row encode buffer reuse (#9371)
  • bytes row format for streaming groupby/unique keys >3.5x (#9346)
  • push slices down map functions (#9350)
✨ Enhancements
  • support all numeric dtypes in serde (#9393)
  • allow easy load/save of polars Config options to/from file (#9391)
  • ensure part of the plan is streaming if aggregati… (#9387)
  • add relaxed concatenation (#9382)
  • add sql DROP TABLE (#9355)
  • support ternary expressions in streaming (#9343)
  • add SQL support for null-aware equality checks (#9332)
  • add SQL support for regular expression operators (~, !~, ~*, and !~*) (#9327)
  • support // integer floordiv operator in the SQL engine (#9324)
🐞 Bug fixes
  • fix bug when comparing series (#9359)
  • list zip with (#9367)
  • parquet + categorical (#9363)
  • respect startby in groupby_dynamic when every is greater than 1d (#9362)
  • raise groupby apply on empty frame (#9360)
  • raise more informative error on string arguments (#9352)
  • Allow for tolerance when comparing nested dtype columns (#9272)
  • avoid is_in TypeError with sets of values containing 'None' (#9323)
🛠️ Other improvements
  • add top-k test for #9385 (#9388)
  • document apply 'return_dtype' requirement (#9361)
  • clarify when day of week takes effect in groupby_dynamic (#9342)
  • add "if you're coming from pandas" tip to groupby_dynamic (#9336)
  • fix string language formatting (#9341)
  • add doc entries for eq_missing and ne_missing expressions (#9331)
  • fixup options for validate arg in join (#9319)

Thank you to all our contributors for making this release possible! @0xbe7a, @AnatolyBuga, @MarcoGorelli, @alexander-beedie, @dkrako, @durandtibo, @ritchie46 and @universalmind303

Files

pola-rs/polars-py-0.18.3.zip

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Additional details

Related works

Is supplement to
https://github.com/pola-rs/polars/tree/py-0.18.3 (URL)