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Published October 4, 2023 | Version py-0.19.7
Software Open

pola-rs/polars: Python Polars 0.19.7

Authors/Creators

  • 1. @pola-rs
  • 2. Quansight
  • 3. @aertslab
  • 4. @alibaba
  • 5. University of California, Berkeley
  • 6. The Rockefeller University
  • 7. @coralogix
  • 8. Munin Data ApS
  • 9. @Quantco
  • 10. @QuantCo
  • 11. @twin-labs
  • 12. Universidad Carlos III(student)
  • 13. @Ponte-Energy-Partners

Description

🏆 Highlights
  • postfix rolling expression as a special case of window functions. (#11445)
🚀 Performance improvements
  • early return in replace_time_zone if target and source time zones match (#11478)
  • greatly improve parquet cloud reading (#11479)
  • ensure we download row-groups concurrently. (#11464)
✨ Enhancements
  • Use IPC for (un)pickling dataframes/series (#11507)
  • support left and right anti/semi joins from the SQL interface (#11501)
  • Add left_on and right_on parameters to df.update (#11277)
  • expressify peak_min/peak_max (#11482)
  • IN(subquery) and SQL Subquery Infrastructure (#11218)
  • add ODBC connection string support to read_database (#11448)
  • postfix rolling expression as a special case of window functions. (#11445)
  • allow for "by" column to be of dtype Date in rolling_* functions (#11004)
  • rework ColumnFactory to additionally support tab-complete for col in IPython (#11435)
🐞 Bug fixes
  • literal hash (#11508)
  • Fix lazy schema for cut/qcut when allow_breaks=True (#11287)
  • correct output schema of hive partition and projection at scan (#11499)
  • correct projection pushdown in hive partitioned read (#11486)
  • fix for write_csv when using non-default "quote" char (#11474)
  • fix deserialization of parquets with large string list columns causing stack overflow (#11471)
  • enable read_database fallback for Snowflake warehouses/connections that don't support Arrow resultsets (#11447)
  • Fix SQL ANY and ALL behaviour (#10879)
  • partially address some PyCharm tooltip/signature issues with decorated methods (#11428)
  • address multiple issues caused by implicit casting of is_in values to the column dtype being searched (#11427)
🛠️ Other improvements
  • minor changes in peak-min/max (#11491)
  • align cloud url regex in rust and python (#11481)
  • Test sdist before releasing (#11494)
  • Unpin maturin version, fix release workflow (#11483)
  • More release workflow refactor (#11472)
  • Set some env vars for release (#11463)
  • move repeat_by to polars-ops (#11461)
  • upgrade to nightly-10-02 (#11460)
  • Update contributing guide to include memory requirement (#11458)
  • add missing docs entry for rolling (#11456)
  • use with_columns in shift examples (#11453)
  • Add wheels as assets to GitHub release (#11452)
  • Build more wheels for polars-lts-cpu/polars-u64-idx (#11430)

Thank you to all our contributors for making this release possible! @ByteNybbler, @MarcoGorelli, @SeanTroyUWO, @alexander-beedie, @c-peters, @dependabot, @dependabot[bot], @mcrumiller, @orlp, @ritchie46, @romanovacca, @stinodego, @svaningelgem and Romano Vacca

Files

pola-rs/polars-py-0.19.7.zip

Files (3.6 MB)

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Additional details

Related works

Is supplement to
https://github.com/pola-rs/polars/tree/py-0.19.7 (URL)