Bump polars from 0.17.7 to 0.20.11

[dependabot]

Bumps polars from 0.17.7 to 0.20.11.

Release notes

Sourced from polars's releases.

Python Polars 0.20.11

🏆 Highlights

• fast path for COUNT(*) queries (#14574)

⚠️ Deprecations

• Deprecate passing time_unit=None to Datetime constructor (#14708)
• Rename Expr.meta.write_json/Expr.from_json to Expr.meta.serialize/Expr.deserialize (#14490)
• Deprecate default value for ignore_nulls for ewm methods (#14663)
• Deprecate DataFrame/LazyFrame.approx_n_unique (#14594)

🚀 Performance improvements

• 2-3x speedup in creating literals/Series of type Date (#14716)
• fix accidental quadratic utf8 validation in parquet (#14705)
• Add __slots__ to most Polars classes (#13236)
• fast path for COUNT(*) queries (#14574)
• Elide the total order wrapper for non-(float/option) types (#14648)
• add utf8-validation fast paths for utf8view (#14644)
• don't reassign chunks back to df owner (#14633)
• If there are many small chunks in write_parquet(), convert to a single chunk (#14484) (#14487)
• Polars thread pool was not used properly in various functions (#14583)

✨ Enhancements

• Change default for maximum number of Series items printed to 10 to match DataFrame (#14703)
• Change default number of rows printed in Notebooks for DataFrame/Series to 10 (#14536)
• Infer values columns in DataFrame.pivot when values is None (#14477)
• fast path for COUNT(*) queries (#14574)
• let rolling accept index_column of type UInt32 or UInt64 (#14669)
• Treat float -0.0 == 0.0 and -NaN == NaN in group-by, joins and unique (#14617)
• Improve consistency of dtype inference from Python types (#14600)
• Properly cache object-stores (#14598)

🐞 Bug fixes

• Fix parallel strategy for LazyFrame not being applied (#14696)
• Block slice pushdown past non-literal projections or when the projection doesn't contain any columns from the input (#14684)
• Fix number of rows printed in DataFrame/Series repr (edge cases) (#14548)
• Fix contention panics in file gc threads (#14690)
• Fix feature combination (#14688)
• Only push predicates depending on the subset columns past unique() (#14668)
• Properly handle a single empty RecordBatch in from_arrow (#14683)
• More accurate type hints for binary file-like inputs (#14674)
• Reading RLE_DICTIONARY-encoded parquet incorrectly coalesced NULL to empty string in some cases (#14670)
• use correct flooring division/modulo operator in literal optimizer and const_lhs <> series ops (#14671)
• Enable is_in for string in categorical/enum (#14576)
• Fixes a read_database issue loading specific datetime types from SQL Server backends (#14627)
• Polars thread pool was not used properly in various functions (#14583)

... (truncated)

Commits

• 9bb0cf0 fix: fix utf8 validation (#14724)
• b4ed30b ci: Limit CMake threads to fix crash compiling libz-ng-sys on macOS (#14715)
• 63e3fdc docs(python): Improve some DataType docstrings (#14719)
• 431dfe9 perf(python): 2-3x speedup in creating literals/Series of type Date (#14716)
• 925f61a feat: Change default for maximum number of Series items printed to 10 to matc...
• 60a3c3e depr(python): Deprecate passing time_unit=None to Datetime constructor (#...
• 2dd2e4b python polars 0.20.11 (#14710)
• bdcbf1a depr(python): Rename Expr.meta.write_json/Expr.from_json to `Expr.meta.seri...
• 493da8b perf: fix accidental quadratic utf8 validation in parquet (#14705)
• ab169a5 fix: Fix parallel strategy for LazyFrame not being applied (#14696)
• Additional commits viewable in compare view

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[dependabot]

Superseded by #362.