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collect_stats omits minValues/maxValues for all-null columns (delta-io#2112), but StatsVerifier fails trying to extract those missing fields before its nullCount == numRecords check runs.
MissingColumn("Column stats.minValues.region_id not found in the data")
Added a reproduction test in clustering_e2e.rs: create a clustered table, write a batch where a clustering column is all nulls — commit fails.
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Title:Write a simplified test case to show the problem
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Title:Write a simplified test case to show the problem
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Bug: StatsVerifier rejects all-null clustering columns
collect_statsomitsminValues/maxValuesfor all-null columns (delta-io#2112), butStatsVerifierfails trying to extract those missing fields before itsnullCount == numRecordscheck runs.Added a reproduction test in clustering_e2e.rs: create a clustered table, write a batch where a clustering column is all nulls — commit fails.