naanagon opened a new pull request, #17927:
URL: https://github.com/apache/iceberg/pull/17927

   ORC:
   
   ```
   java.lang.IllegalArgumentException: ORC schema does not contain Iceberg IDs
     at org.apache.iceberg.orc.ORCSchemaUtil.convert(ORCSchemaUtil.java:293)
     at org.apache.iceberg.orc.OrcMetrics.buildOrcMetrics(OrcMetrics.java:143)
     at org.apache.iceberg.orc.OrcMetrics.fromInputFile(OrcMetrics.java:93)
     at org.apache.iceberg.orc.OrcMetrics.fromInputFile(OrcMetrics.java:87)
     at 
org.apache.iceberg.data.TableMigrationUtil.getOrcMetrics(TableMigrationUtil.java:296)
     at 
org.apache.iceberg.data.TableMigrationUtil.lambda$listPartition$4(TableMigrationUtil.java:244)
   ```
   
   Parquet:
   
   ```
   java.lang.RuntimeException: mig_parquet_sample/date_key=2026-09-02/1_folder 
is not a Parquet file (length is too low: 0)
        at 
org.apache.iceberg.shaded.org.apache.parquet.hadoop.ParquetFileReader.readFooter(ParquetFileReader.java:599)
        at 
org.apache.iceberg.shaded.org.apache.parquet.hadoop.ParquetFileReader.readFooter(ParquetFileReader.java:578)
        at 
org.apache.iceberg.shaded.org.apache.parquet.hadoop.ParquetFileReader.<init>(ParquetFileReader.java:971)
        at 
org.apache.iceberg.shaded.org.apache.parquet.hadoop.ParquetFileReader.<init>(ParquetFileReader.java:961)
        at 
org.apache.iceberg.shaded.org.apache.parquet.hadoop.ParquetFileReader.open(ParquetFileReader.java:718)
        at 
org.apache.iceberg.parquet.ParquetUtil.fileMetrics(ParquetUtil.java:64)
        at 
org.apache.iceberg.data.TableMigrationUtil.getParquetMetrics(TableMigrationUtil.java:287)
        at 
org.apache.iceberg.data.TableMigrationUtil.lambda$listPartition$3(TableMigrationUtil.java:236)
   ```
   
   Avro is working fine.


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