[Spark][3.3] Fix auto-conflict handling logic in Optimize to handle DVs #3982
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Which Delta project/connector is this regarding?
Description
Bug: There was an existing long standing bug where the custom conflict detection logic in Optimize does not catch concurrent transactions that add DVs. e.g. AddFile(path='a') -> AddFile(path='a', dv='dv1').
Fix: Updated the conflict resolution to consider a composite key of (path, dvId) instead of just depending on path.
How was this patch tested?
Does this PR introduce any user-facing changes?
no