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Remove "legacy" Dask DataFrame support from Dask cuDF #17558

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@rjzamora rjzamora commented Dec 9, 2024

Description

The legacy Dask DataFrame API is deprecated. We should remove it for 25.02 to reduce maintenance burden.

Blockers:

Checklist

  • I am familiar with the Contributing Guidelines.
  • New or existing tests cover these changes.
  • The documentation is up to date with these changes.

@rjzamora rjzamora added 2 - In Progress Currently a work in progress dask Dask issue improvement Improvement / enhancement to an existing function breaking Breaking change labels Dec 9, 2024
@rjzamora rjzamora self-assigned this Dec 9, 2024
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@github-actions github-actions bot added the Python Affects Python cuDF API. label Dec 9, 2024
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rjzamora commented Dec 9, 2024

/ok to test

@rjzamora rjzamora marked this pull request as ready for review December 16, 2024 14:38
@rjzamora rjzamora requested review from a team as code owners December 16, 2024 14:38
@rjzamora rjzamora requested a review from jameslamb December 16, 2024 14:38
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Packaging changes look good to me. Will defer to others on the substance of removing this support.

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@galipremsagar galipremsagar left a comment

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LGTM

Comment on lines +16 to +17
"The legacy DataFrame API is not supported in dask_cudf>24.12. "
"Please enable query-planning, or downgrade to dask_cudf<=24.12"
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Suggested change
"The legacy DataFrame API is not supported in dask_cudf>24.12. "
"Please enable query-planning, or downgrade to dask_cudf<=24.12"
"The legacy DataFrame API is not supported in dask_cudf>24.12."
"Please enable query-planning, or downgrade to dask_cudf<=24.12"

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Don't we want a space between the period and the first word of the next sentence?

@rjzamora rjzamora marked this pull request as draft December 16, 2024 18:56
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Update: This is blocked by rapidsai/dask-cuda#1417 (which is now ready for review)

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Update: This PR now removes 2,000+ lines of code that would be essentially "dead" outside the legacy API.

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/okay to test

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2 - In Progress Currently a work in progress breaking Breaking change dask Dask issue improvement Improvement / enhancement to an existing function Python Affects Python cuDF API.
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