build(deps): bump polars from 0.20.15 to 0.20.18

[dependabot]

Bumps polars from 0.20.15 to 0.20.18.

Release notes

Sourced from polars's releases.

Python Polars 0.20.18

🚀 Performance improvements

• CSV reading memory usage tests and fixes (#15422)
• avoid double-allocation in rolling_apply_agg_window (#15423)
• Make LogicalPlan immutable (#15416)
• Add non-order preserving variable row-encoding (#15414)
• Use row-encoding for multiple key group by (#15392)

✨ Enhancements

• Supports explode_by_offsets for decimal (#15417)
• Add read_clipboard and DataFrame.write_clipboard (#15272)
• Add null_on_oob parameter to expr.list.get (#15395)
• make Series.__bool__ error message Rusttier (#15407)
• CSV-writer escape carriage return (#15399)

🐞 Bug fixes

• datetime operations (e.g. .dt.year) were raising when null values were backed by out-of-range integers (#15420)
• Ensure Binary -> Binview cast doesn't overflow the buffer size (#15408)
• Don't prune alias in function subtree (#15406)
• Return 0 for n_unique() in group-by context when group is empty (#15289)
• Unset UpdateGroups after group-sensitive expression (#15400)
• to_any_value should supports all LiteralValue type (#15387)
• Hash failure combining hash of two numeric columns containing equal values (#15397)
• Add FixedSizeBinary to arrow field conversion (#15389)
• Conversion of expr_ir in partition fast path (#15388)
• fix panic when doing a scan_parquet with hive partioning (#15381)
• sort for series with unsupported dtype should raise instead of panic (#15385)

📖 Documentation

• Added example for explode mapping strategy in pl.Expr.over (#15402)
• Add outer_coalesce join strategy in the user guide (#15405)
• Change the example to series for series/array.py (#15383)
• Add "See Also" for arg_sort and arg_sort_by (#15348)

🛠️ Other improvements

• make dsl immutable and cheap to clone (#15394)
• use recursive crate, add missing recursive tag (#15393)
• Update CODEOWNERS (polars-sql) (#15384)

Thank you to all our contributors for making this release possible! @​CanglongCl, @​JamesCE2001, @​MarcoGorelli, @​Sol-Hee, @​alexander-beedie, @​dependabot, @​dependabot[bot], @​itamarst, @​kszlim, @​mcrumiller, @​nameexhaustion, @​orlp, @​reswqa, @​ritchie46, @​rob-sil and @​thomaslin2020

Python Polars 0.20.17

🏆 Highlights

... (truncated)

Commits

• c8640cb python polars 0.20.18 (#15419)
• e3c2b0d perf(python): CSV reading memory usage tests and fixes (#15422)
• 845e69b fix: datetime operations (e.g. .dt.year) were raising when null values were b...
• effc4d6 perf: avoid double-allocation in rolling_apply_agg_window (#15423)
• b0ece1e feat: Supports explode_by_offsets for decimal (#15417)
• 758b55a perf: Make LogicalPlan immutable (#15416)
• 82f717b feat(python): Add read_clipboard and DataFrame.write_clipboard (#15272)
• b1eaff3 docs(python): Added example for explode mapping strategy in pl.Expr.over ...
• 2c9b6c1 feat(rust, python): Add null_on_oob parameter to expr.list.get (#15395)
• 5cdeea2 perf: Add non-order preserving variable row-encoding (#15414)
• Additional commits viewable in compare view

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[dependabot]

Superseded by #15.