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Potential memory leak when sorting nested lists?

bugSomething isn't workingSomething isn't working

needs triageAwaiting prioritization by a maintainerAwaiting prioritization by a maintainer

pythonRelated to Python PolarsRelated to Python Polars

Status: Open.

#27339 In pola-rs/polars;

· Fufs opened on Apr 16, 2026

A ComputeError will occur when using UDF and the GPU engine

A-gpuArea: gpu engineArea: gpu engine

bugSomething isn't workingSomething isn't working

needs triageAwaiting prioritization by a maintainerAwaiting prioritization by a maintainer

pythonRelated to Python PolarsRelated to Python Polars

Status: Open.

#27338 In pola-rs/polars;

· asddfl opened on Apr 16, 2026

Casting from string to list of enums fails.

bugSomething isn't workingSomething isn't working

needs triageAwaiting prioritization by a maintainerAwaiting prioritization by a maintainer

pythonRelated to Python PolarsRelated to Python Polars

Status: Open.

#27336 In pola-rs/polars;

· gab23r opened on Apr 16, 2026

str.json_path_match returns null on invalid JSON instead of raising an error

A-io-jsonArea: reading/writing JSON filesArea: reading/writing JSON files

documentationImprovements or additions to documentationImprovements or additions to documentation

Status: Open.

#27333 In pola-rs/polars;

· nhols opened on Apr 16, 2026

Feature Request: is_unique flag for columns

enhancementNew feature or an improvement of an existing featureNew feature or an improvement of an existing feature

Status: Open.

#27331 In pola-rs/polars;

· gab23r opened on Apr 16, 2026

Memory use regression writing concatenated DataFrames to IPC format

A-io-ipcArea: reading/writing IPC filesArea: reading/writing IPC files

regressionIssue introduced by a new releaseIssue introduced by a new release

Status: Open.

#27329 In pola-rs/polars;

· adamreeve opened on Apr 16, 2026

DataType.from_python fails for list[Optional[T]]

bugSomething isn't workingSomething isn't working

needs triageAwaiting prioritization by a maintainerAwaiting prioritization by a maintainer

pythonRelated to Python PolarsRelated to Python Polars

Status: Open.

#27320 In pola-rs/polars;

· rjboczar opened on Apr 15, 2026

Incorrect parsing in pl.from_epoch when provided UNIX timestamps as UInt32

bugSomething isn't workingSomething isn't working

needs triageAwaiting prioritization by a maintainerAwaiting prioritization by a maintainer

pythonRelated to Python PolarsRelated to Python Polars

Status: Open.

#27317 In pola-rs/polars;

· marcus-maro opened on Apr 15, 2026

pl.corr converts Nulls to NaNs

bugSomething isn't workingSomething isn't working

needs triageAwaiting prioritization by a maintainerAwaiting prioritization by a maintainer

pythonRelated to Python PolarsRelated to Python Polars

Status: Open.

#27312 In pola-rs/polars;

· francisca-araujo opened on Apr 15, 2026

A InvalidOperationError ( mean operation not supported for dtype str) occurred while using streaming engines

A-streamingRelated to the streaming engineRelated to the streaming engine

bugSomething isn't workingSomething isn't working

needs triageAwaiting prioritization by a maintainerAwaiting prioritization by a maintainer

pythonRelated to Python PolarsRelated to Python Polars

Status: Open.

#27309 In pola-rs/polars;

· asddfl opened on Apr 15, 2026

.over() ignores the global random seed

bugSomething isn't workingSomething isn't working

needs triageAwaiting prioritization by a maintainerAwaiting prioritization by a maintainer

pythonRelated to Python PolarsRelated to Python Polars

Status: Open.

#27307 In pola-rs/polars;

· SamuelAllain opened on Apr 14, 2026

Improve assert_frame_equal dtype check

enhancementNew feature or an improvement of an existing featureNew feature or an improvement of an existing feature

Status: Open.

#27306 In pola-rs/polars;

· CaselIT opened on Apr 14, 2026