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[python][RDF] Handle the creation of an empty RDataFrame in _MakeNumpyDataFrame #18585

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@siliataider siliataider commented May 2, 2025

This Pull request:

Changes or fixes:

This PR introduces logic to detect and handle the creation of empty RDataframes from empty numpy arrays, as long as the array's dtype is supported by RVec, see the docs.
As explained on the issue's thread, the issue's reproducer will still not work with this PR.

Checklist:

  • tested changes locally

This PR fixes #18581

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github-actions bot commented May 2, 2025

Test Results

    19 files      19 suites   4d 13h 6m 35s ⏱️
 2 731 tests  2 731 ✅ 0 💤 0 ❌
50 456 runs  50 456 ✅ 0 💤 0 ❌

Results for commit 5e416d6.

♻️ This comment has been updated with latest results.

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Exception when trying to build RDataFrame from pandas
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