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Published May 23, 2023 | Version py-0.17.15
Software Open

pola-rs/polars: Python Polars 0.17.15

Authors/Creators

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

Description

🏆 Highlights
  • Array (backed by arrow::FixedSizeList datatype (#8943)
  • Write dataframes as delta tables (#7616)
🚀 Performance improvements
  • improve list explode perf (#8974)
  • Improve explodes: offsets_to_indexes performance (#8964)
  • avoid quadratic exclude behaviour when selecting against dtypes and/or wildcards (#8953)
  • use simd-json for all json parsing (#8922)
  • improve performance of align_frames, and add new alignment option (#8899)
✨ Enhancements
  • error on invalid sortby expr (#8986)
  • Pushdown is_in to pyarrow dataset (#8930)
  • allow set column list input to 'drop' and 'drop_nulls' (#8962)
  • Array (backed by arrow::FixedSizeList datatype (#8943)
  • Add dtype argument for repeat (#8946)
  • Use schema keys to define the columns if only the schema is provided to pl.struct (#8952)
  • multiple enhancements for SQLContext (#8944)
  • add sql UNION, UNION ALL \& UNION DISTINCT (#8936)
  • add sql compound identifiers (#8934)
  • add sql EXCLUDE (#8913)
  • add sql CASE (#8911)
  • add sql EXPLAIN (#8897)
  • Write dataframes as delta tables (#7616)
  • improve performance of align_frames, and add new alignment option (#8899)
  • improved inference from type annotations (#8895)
🐞 Bug fixes
  • Fix erroneous warning in hist (#8982)
  • don't modify Series with empty names in-place on DataFrame init (#8956)
  • respect rechunk in parquet (#8935)
  • Add hint on PyArrow to ADBC import error (#8898)
  • Simplify offsets_to_indexes, fix empty offsets edge cases (#8920)
  • sql qualified wildcards (#8916)
  • address edge cases with in-place modification of Series objects (#8915)
  • don't check sortedness in asof by (#8906)
  • check for object type in csv writer (#8894)
  • improve performance of align_frames, and add new alignment option (#8899)
  • window function with filtered groups (#8880)
🛠️ Other improvements
  • deprecate rename "in_place" parameter (#8960)
  • Clean up tests for repeat (#8979)
  • Deprecate name argument for repeat (#8977)
  • simplify take_every (#8971)
  • Clean up repeat/ones/zeros (#8963)
  • further enhance SQLContext docstrings (#8948)
  • docs(python) Fix typo in lazygroupby.rs error message (#8937)
  • fix docstring for time() (#8939)
  • refactor tzinfo-related tests (#8883)

Thank you to all our contributors for making this release possible! @CloseChoice, @MarcoGorelli, @alexander-beedie, @avimallu, @cbowdon, @chitralverma, @jonashaag, @kpberry, @mcrumiller, @petar-savov, @ritchie46, @stinodego and @universalmind303

Files

pola-rs/polars-py-0.17.15.zip

Files (2.3 MB)

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Additional details

Related works

Is supplement to
https://github.com/pola-rs/polars/tree/py-0.17.15 (URL)