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@dependabot dependabot bot commented on behalf of github Nov 3, 2025

Bumps polars from 0.51.0 to 0.52.0.

Release notes

Sourced from polars's releases.

Rust Polars 0.52.0

🏆 Highlights

  • Add LazyFrame.{sink,collect}_batches (#23980)
  • Deterministic import order for Python Polars package variants (#24531)

🚀 Performance improvements

  • Lazy gather for {forward,backward}_fill in group-by contexts (#25115)
  • Don't recompute full rolling moment window when NaNs/nulls leave the window (#25078)
  • Skip filtering scan IR if no paths were filtered (#25037)
  • Optimize ipc stream read performance (#24671)
  • Bump foldhash to 0.2.0 and hashbrown to 0.16.0 (#25014)
  • Lower unique to native group-by and speed up n_unique in group-by context (#24976)
  • Better parallelize take{_slice,}_unchecked (#24980)
  • Implement native skew and kurtosis in group-by context (#24961)
  • Use native group-by aggregations for bitwise_* operations (#24935)
  • Address group_by_dynamic slowness in sparse data (#24916)
  • Native filter/drop_nulls/drop_nans in group-by context (#24897)
  • Implement cumulative_eval using the group-by engine (#24889)
  • Prevent generation of copies of Dataframes in DslPlan serialization (#24852)
  • Implement native null_count, any and all group-by aggregations (#24859)
  • Speed up reverse in group-by context (#24855)
  • Prune unused categorical values when exporting to arrow/parquet/IPC/pickle (#24829)
  • Don't check duplicates on streaming simple projection in release mode (#24830)
  • Lower approx_n_unique to the streaming engine (#24821)
  • Duration/interval string parsing optimisation (2-5x faster) (#24771)
  • Use native reducer for first/last on Decimals, Categoricals and Enums (#24786)
  • Implement indexed method for BitMapIter::nth (#24766)
  • Pushdown slices on plans within unions (#24735)
  • Optimize gather_every(n=1) to slice (#24704)
  • Lower null count to streaming engine (#24703)
  • Native streaming gather_every (#24700)
  • Pushdown filter with strptime if input is literal (#24694)
  • Avoid copying expanded paths (#24669)
  • Relax filter expr ordering (#24662)
  • Remove unnecessary groups call in aggregated (#24651)
  • Skip files in scan_iceberg with filter based on metadata statistics (#24547)
  • Push row_index predicate for all scan types (#24537)
  • Perform integer in-filtering for Parquet inequality predicates (#24525)
  • Stop caching Parquet metadata after 8 files (#24513)

✨ Enhancements

  • Improve error message on unsupported SQL subquery comparisons (#25135)
  • Rewrite IR::Scan to IR::DataFrameScan in expand_datasets when applicable (#25106)
  • Support ewm_var/std in streaming engine (#25109)
  • Make DSL-hash skippable (#25140)
  • Streaming {Expr,LazyFrame}.rolling (#25058)
  • Set polars/<version> user-agent (#25112)

... (truncated)

Commits
  • ed23bd6 feat: Improve error message on unsupported SQL subquery comparisons (#25135)
  • 7d5d966 feat: Rewrite IR::Scan to IR::DataFrameScan in expand_datasets when app...
  • 5a4c0d2 fix: Fix CSV select(len()) off by 1 with comment prefix (#25069)
  • 890fc7a feat: Support ewm_var/std in streaming engine (#25109)
  • 48492c2 refactor(rust): Support for named/anonymous aggregations (#25118)
  • 3011cad fix: Fix incorrect reshape on sliced lists (#25139)
  • d43dcdb feat: Make DSL-hash skippable (#25140)
  • 2a48d78 fix: Support "index" as column name in group_by iterator (#25138)
  • cad5304 fix: DSL_SCHEMA_HASH should not changed by line endings (#25123)
  • 53eaf6c fix: Solve multiple issues relating to arena mutation in SQL subqueries (#25110)
  • Additional commits viewable in compare view

Most Recent Ignore Conditions Applied to This Pull Request
Dependency Name Ignore Conditions
polars [< 0.48, > 0.47.0]

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@dependabot dependabot bot added dependencies Pull requests that update a dependency file rust Pull requests that update rust code labels Nov 3, 2025
Bumps [polars](https://github.com/pola-rs/polars) from 0.51.0 to 0.52.0.
- [Release notes](https://github.com/pola-rs/polars/releases)
- [Commits](pola-rs/polars@rs-0.51.0...rs-0.52.0)

---
updated-dependencies:
- dependency-name: polars
  dependency-version: 0.52.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
@dependabot dependabot bot force-pushed the dependabot/cargo/polars-0.52.0 branch from 9407a62 to a02777b Compare November 6, 2025 13:04
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