naanagon opened a new issue, #17926:
URL: https://github.com/apache/iceberg/issues/17926
### Feature Request / Improvement
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)
```
Sometimes empty files are created in hive, we need to manually remove all
empty files before migrating to iceberg.
We can fix this by skipping empty files
### Query engine
Spark
### Willingness to contribute
- [x] I can contribute this improvement/feature independently
- [x] I would be willing to contribute this improvement/feature with
guidance from the Iceberg community
- [ ] I cannot contribute this improvement/feature at this time
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