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[FEA] Support cudf.IntervalDtype(subtype=None) #17997

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mroeschke opened this issue Feb 12, 2025 · 0 comments · May be fixed by #18017
Open

[FEA] Support cudf.IntervalDtype(subtype=None) #17997

mroeschke opened this issue Feb 12, 2025 · 0 comments · May be fixed by #18017
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feature request New feature or request Python Affects Python cuDF API.

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@mroeschke
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Is your feature request related to a problem? Please describe.
pandas.IntervalDtype supports passing subtype=None meaning "a general IntervalDtype" without specified left/right types (commonly occuring if someone calls dtype=interval). cudf.IntervalDtype, as a sublcass of cudf.StructDtype, requires a left/right type specified.

Describe the solution you'd like
Support cudf.IntervalDtype holding a None left/right type or have a callback e.g. cudf.IntervalDtype._subtype_from_data that passes the subtype from the column data upon construction.

This is blocking #17978

Describe alternatives you've considered
Status quo
@mroeschke mroeschke added feature request New feature or request Python Affects Python cuDF API. labels Feb 12, 2025
@mroeschke mroeschke linked a pull request Feb 14, 2025 that will close this issue
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@GPUtester GPUtester moved this from Todo to In Progress in cuDF Python Feb 14, 2025
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Labels
feature request New feature or request Python Affects Python cuDF API.
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cuDF Python
Status: In Progress
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Support IntervalDtype(subtype=None) mroeschke/cudf
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@mroeschke