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@SemyonSinchenko
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What changes were proposed in this pull request?

  1. LabelPropagation without GraphX, based only on graphframes.lib.Pregel
  2. A custom expression for maxBy that implements https://issues.apache.org/jira/browse/SPARK-42856

Why are the changes needed?

As described in the issue:

Close #564

Notes

It is not working in 2.12 as well, as GraphX based implementation. I have no idea why.

@SemyonSinchenko
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@SauronShepherd @rjurney Hi there! Could you take a look when you have time? It is a part of #556

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lgtm

@james-willis
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Linking this thread about 2.12 issues: #571

@SemyonSinchenko SemyonSinchenko merged commit dea9b23 into graphframes:master May 30, 2025
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@SemyonSinchenko SemyonSinchenko deleted the 564-LabelPropagation-Pregel branch July 19, 2025 11:56
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feat: LabelPropagation without GraphX

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