edgarRd opened a new pull request, #15388:
URL: https://github.com/apache/iceberg/pull/15388

   Hive tables may contain data files in partition locations with 
subdirectories. However, current implementation of `TableMigrationUtil` does 
not support listing these files, even if the hive table supports them via 
`hive.mapred.supports.subdirectories`. This can lead to *missing data files* on 
tables migrated from Hive with this condition.
   
   This change introduces support to list the files in the partition 
subdirectories if `hive.mapred.supports.subdirectories` is enabled, migrating 
all files in the partition successfully.


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