Make copy-on-write the default for pandas3 - #21801
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/ok to test 1c4481a |
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mroeschke
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Nice! In a follow up (not urgent for pandas 3 compat), I bet there are more places where we can call copy(deep=False) when coping column objects or in public APIs
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## Description <!-- Provide a standalone description of changes in this PR. --> <!-- Reference any issues closed by this PR with "closes #1234". --> <!-- Note: The pull request title will be included in the CHANGELOG. --> I missed this in #21801. ## Checklist - [x] I am familiar with the [Contributing Guidelines](https://github.com/rapidsai/cudf/blob/HEAD/CONTRIBUTING.md). - [x] New or existing tests cover these changes. - [x] The documentation is up to date with these changes.
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Description
This PR removes all configurability around copy-on-write and turns it on unconditionally. I didn't remove some of the behavioral tests for CoW so we still have some level of testing of CoW correctness.
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