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[BUG] groupby.head on an empty dataframe results in CUDA error #13397

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shwina opened this issue May 20, 2023 · 1 comment · Fixed by #13398
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[BUG] groupby.head on an empty dataframe results in CUDA error #13397

shwina opened this issue May 20, 2023 · 1 comment · Fixed by #13398
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@shwina
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shwina commented May 20, 2023

While this is an edge case, it leaves CUDA in an unusable state:

>>> df = cudf.DataFrame({}, index=[1, 2, 3])
>>> df.groupby(cudf.Series([1, 2, 3])).head()  # CUDA error
>>> # any further operations on the GPU fail

cc: @wence-
@shwina shwina added bug Something isn't working Needs Triage Need team to review and classify python and removed Needs Triage Need team to review and classify labels May 20, 2023
@shwina shwina mentioned this issue May 20, 2023
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wence- commented May 22, 2023

Ah, thanks for spotting!

rapids-bot bot pushed a commit that referenced this issue May 22, 2023
@shwina
Fix groupby head/tail for empty dataframe (#13398)
9b1496d 
Closes #13397

Authors:
  - Ashwin Srinath (https://github.com/shwina)

Approvers:
  - GALI PREM SAGAR (https://github.com/galipremsagar)
  - Bradley Dice (https://github.com/bdice)

URL: #13398
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Fix groupby head/tail for empty dataframe shwina/cudf
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@wence- @shwina