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[FEA] The total number of characters in a cudf column is limited. Remove this restriction? #12444

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infzo opened this issue Dec 28, 2022 · 1 comment
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@infzo
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infzo commented Dec 28, 2022

Is your feature request related to a problem? Please describe.
Cannot convert from arrow table to cudf dataframe when the string in the column is long.

The total number of characters in a cudf column is limited.

#8748 (comment)

RuntimeError: cuDF failure at: /workspace/.conda-bld/work/cpp/src/copying/concatenate.cu:391: Total number of concatenated chars exceeds size_type range

Describe the solution you'd like

  1. Resolve the limit on the total number of characters in a column.
  2. Similar to the concept of batch in the arrow, a dataframe consists of multiple subframes and can be used for groupby calculation.
@infzo infzo added Needs Triage Need team to review and classify feature request New feature or request labels Dec 28, 2022
@beckernick
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Thanks for filing an issue. For now, we recommend using Dask or Spark to solve this limitation by splitting the data into partitions when processing larger dataframes.

#3958 (comment) has more context on the current status. We'll make sure to take your request and proposed solution into consideration in future discussions of this string character maximum.

@bdice bdice removed the Needs Triage Need team to review and classify label Mar 4, 2024
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